slovo/compiler/tests/promotion_gate.rs

use std::{
    ffi::OsStr,
    fs,
    path::{Path, PathBuf},
    process::{Command, Output},
};

const DIAGNOSTIC_SNAPSHOTS: &[&str] = &[
    "array-index-out-of-bounds.diag",
    "array-index-not-i32.diag",
    "array-argument-type-mismatch.diag",
    "array-local-initializer-type-mismatch.diag",
    "array-return-type-mismatch.diag",
    "arity-mismatch.diag",
    "cyclic-struct-fields.diag",
    "cyclic-type-alias.diag",
    "duplicate-local.diag",
    "duplicate-match-arm.diag",
    "duplicate-struct-constructor-field.diag",
    "duplicate-struct-field.diag",
    "duplicate-struct.diag",
    "duplicate-type-alias.diag",
    "empty-array.diag",
    "enum-constructor-arity.diag",
    "enum-container-values.diag",
    "enum-duplicate-variant.diag",
    "enum-duplicate.diag",
    "enum-empty.diag",
    "enum-match-duplicate-arm.diag",
    "enum-match-invalid-arm.diag",
    "enum-match-non-exhaustive.diag",
    "enum-match-payload-binding.diag",
    "enum-ordering.diag",
    "enum-payload-constructor-arity.diag",
    "enum-payload-constructor-type.diag",
    "enum-payload-recursive-struct.diag",
    "enum-payload-struct-equality.diag",
    "enum-payload-mixed-types.diag",
    "enum-payload-match-missing-binding.diag",
    "enum-payload-unsupported-type.diag",
    "enum-printing.diag",
    "enum-subject-mismatch.diag",
    "enum-struct-fields-container.diag",
    "enum-unknown-constructor.diag",
    "enum-unknown-variant.diag",
    "enum-unqualified-variant-constructor.diag",
    "if-branch-type-mismatch.diag",
    "if-condition-not-bool.diag",
    "i64-literal-out-of-range.diag",
    "index-on-non-array.diag",
    "integer-out-of-range.diag",
    "invalid-i64-literal.diag",
    "invalid-leading-plus-i64-literal.diag",
    "invalid-sign-only-i64-literal.diag",
    "empty-struct.diag",
    "empty-while-body.diag",
    "local-redeclares-parameter.diag",
    "local-shadows-function.diag",
    "local-shadows-intrinsic.diag",
    "match-arm-type-mismatch.diag",
    "match-binding-collision.diag",
    "match-subject-type-mismatch.diag",
    "malformed-option-unwrap.diag",
    "malformed-option-constructor.diag",
    "malformed-if.diag",
    "malformed-match-pattern.diag",
    "malformed-result-err-unwrap.diag",
    "malformed-result-ok-unwrap.diag",
    "malformed-result-constructor.diag",
    "malformed-type-alias.diag",
    "malformed-unsafe-form.diag",
    "malformed-while.diag",
    "field-access-on-non-struct.diag",
    "recursive-struct-field.diag",
    "nested-local-declaration.diag",
    "nested-while.diag",
    "non-exhaustive-match.diag",
    "option-constructor-type-mismatch.diag",
    "option-unwrap-non-option.diag",
    "print-bool-arity.diag",
    "print-bool-type.diag",
    "result-constructor-type-mismatch.diag",
    "result-err-unwrap-non-result.diag",
    "result-ok-unwrap-non-result.diag",
    "set-immutable-local.diag",
    "set-parameter.diag",
    "single-file-main-i64-return.diag",
    "self-type-alias.diag",
    "set-type-mismatch.diag",
    "set-unknown-local.diag",
    "std-abi-layout-unsupported.diag",
    "std-async-spawn-unsupported.diag",
    "std-env-get-type.diag",
    "std-env-get-result-type.diag",
    "std-fs-read-binary-unsupported-alias.diag",
    "std-fs-read-text-helper-shadow.diag",
    "std-fs-list-dir-unsupported.diag",
    "std-fs-write-text-arity.diag",
    "std-fs-write-text-result-arity.diag",
    "std-fs-write-text-result-type.diag",
    "std-io-prompt-unsupported.diag",
    "std-io-read-stdin-async-unsupported.diag",
    "std-io-read-stdin-binary-unsupported.diag",
    "std-io-read-stdin-bytes-unsupported.diag",
    "std-io-read-stdin-result-arity.diag",
    "std-io-read-stdin-result-bool-context.diag",
    "std-io-read-stdin-result-helper-shadow.diag",
    "std-io-read-stdin-result-name-shadow.diag",
    "std-io-read-stdin-result-type.diag",
    "std-io-read-line-unsupported.diag",
    "std-io-read-stdin-unsupported.diag",
    "std-io-stdin-encoding-unsupported.diag",
    "std-io-stdin-lines-unsupported.diag",
    "std-io-stdin-stream-unsupported.diag",
    "std-io-eprint-arity.diag",
    "std-io-eprint-result-context.diag",
    "std-net-connect-unsupported.diag",
    "std-num-cast-checked-unsupported.diag",
    "std-num-cast-unsupported.diag",
    "std-num-f64-to-i32-result-arity.diag",
    "std-num-f64-to-i32-result-bool-context.diag",
    "std-num-f64-to-i32-result-context.diag",
    "std-num-f64-to-i32-result-name-shadow.diag",
    "std-num-f64-to-i32-result-type.diag",
    "std-num-f64-to-i32-unsupported.diag",
    "std-num-f64-to-i64-result-arity.diag",
    "std-num-f64-to-i64-result-bool-context.diag",
    "std-num-f64-to-i64-result-context.diag",
    "std-num-f64-to-i64-result-name-shadow.diag",
    "std-num-f64-to-i64-result-type.diag",
    "std-num-f64-to-i64-unsupported.diag",
    "std-num-f64-to-string-arity.diag",
    "std-num-f64-to-string-bool-context.diag",
    "std-num-f64-to-string-context.diag",
    "std-num-f64-to-string-helper-shadow.diag",
    "std-num-f64-to-string-name-shadow.diag",
    "std-num-f64-to-string-type.diag",
    "std-num-i32-to-f64-type.diag",
    "std-num-i32-to-i64-arity.diag",
    "std-num-i32-to-i64-result-unsupported.diag",
    "std-num-i32-to-string-arity.diag",
    "std-num-i64-to-i32-result-arity.diag",
    "std-num-i64-to-i32-result-type.diag",
    "std-num-i64-to-i32-unsupported.diag",
    "std-num-i64-to-string-type.diag",
    "std-num-to-string-unsupported.diag",
    "std-package-load-unsupported.diag",
    "std-platform-os-unsupported.diag",
    "std-print-bool-arity.diag",
    "std-print-bool-result.diag",
    "std-parameter-shadows-runtime.diag",
    "std-process-arg-result-arity.diag",
    "std-process-arg-result-helper-shadow.diag",
    "std-process-arg-result-name-shadow.diag",
    "std-process-arg-type.diag",
    "std-random-bytes-unsupported.diag",
    "std-random-crypto-i32-unsupported.diag",
    "std-random-float-unsupported.diag",
    "std-random-i32-arity.diag",
    "std-random-i32-bool-context.diag",
    "std-random-i32-helper-shadow.diag",
    "std-random-i32-name-shadow.diag",
    "std-random-range-unsupported.diag",
    "std-random-seed-unsupported.diag",
    "std-random-shuffle-unsupported.diag",
    "std-random-string-unsupported.diag",
    "std-random-uuid-unsupported.diag",
    "std-result-map-unsupported.diag",
    "std-vec-empty-generic-unsupported.diag",
    "std-string-byte-at-result-arity.diag",
    "std-string-byte-at-result-bool-context.diag",
    "std-string-byte-at-result-context.diag",
    "std-string-byte-at-result-helper-shadow.diag",
    "std-string-byte-at-result-name-shadow.diag",
    "std-string-byte-at-result-type.diag",
    "std-string-byte-at-unsupported.diag",
    "std-string-concat-arity.diag",
    "std-string-concat-helper-shadow.diag",
    "std-string-concat-result-context.diag",
    "std-string-concat-type.diag",
    "std-string-concat-unsupported-string-container.diag",
    "std-string-contains-unsupported.diag",
    "std-string-ends-with-arity.diag",
    "std-string-ends-with-context.diag",
    "std-string-ends-with-helper-shadow.diag",
    "std-string-ends-with-name-shadow.diag",
    "std-string-ends-with-type.diag",
    "std-string-find-result-unsupported.diag",
    "std-string-from-i64-unsupported.diag",
    "std-string-index-unsupported.diag",
    "std-string-len-type.diag",
    "std-string-parse-bool-unsupported.diag",
    "std-string-parse-bool-result-arity.diag",
    "std-string-parse-bool-result-bool-context.diag",
    "std-string-parse-bool-result-context.diag",
    "std-string-parse-bool-result-helper-shadow.diag",
    "std-string-parse-bool-result-name-shadow.diag",
    "std-string-parse-bool-result-type.diag",
    "std-string-parse-bytes-unsupported.diag",
    "std-string-parse-f64-unsupported.diag",
    "std-string-parse-generic-unsupported.diag",
    "std-string-parse-i32-base-prefix-unsupported.diag",
    "std-string-parse-i32-binary-unsupported.diag",
    "std-string-parse-i32-code-unsupported.diag",
    "std-string-parse-i32-error-adt-unsupported.diag",
    "std-string-parse-i32-hex-unsupported.diag",
    "std-string-parse-i32-locale-unsupported.diag",
    "std-string-parse-i32-message-unsupported.diag",
    "std-string-parse-i32-octal-unsupported.diag",
    "std-string-parse-i32-plus-unsupported.diag",
    "std-string-parse-i32-radix-unsupported.diag",
    "std-string-parse-i32-result-arity.diag",
    "std-string-parse-i32-result-bool-context.diag",
    "std-string-parse-i32-result-context.diag",
    "std-string-parse-i32-result-helper-shadow.diag",
    "std-string-parse-i32-result-name-shadow.diag",
    "std-string-parse-i32-result-type.diag",
    "std-string-parse-i64-result-arity.diag",
    "std-string-parse-i64-result-bool-context.diag",
    "std-string-parse-i64-result-context.diag",
    "std-string-parse-i64-result-helper-shadow.diag",
    "std-string-parse-i64-result-name-shadow.diag",
    "std-string-parse-i64-result-type.diag",
    "std-string-parse-f64-result-arity.diag",
    "std-string-parse-f64-result-bool-context.diag",
    "std-string-parse-f64-result-context.diag",
    "std-string-parse-f64-result-helper-shadow.diag",
    "std-string-parse-f64-result-name-shadow.diag",
    "std-string-parse-f64-result-type.diag",
    "std-string-parse-i32-trim-unsupported.diag",
    "std-string-parse-i32-underscore-unsupported.diag",
    "std-string-parse-i32-unicode-unsupported.diag",
    "std-string-parse-i32-unsupported.diag",
    "std-string-parse-i32-whitespace-unsupported.diag",
    "std-string-parse-string-unsupported.diag",
    "std-string-scan-unsupported.diag",
    "std-string-slice-result-arity.diag",
    "std-string-slice-result-bool-context.diag",
    "std-string-slice-result-context.diag",
    "std-string-slice-result-helper-shadow.diag",
    "std-string-slice-result-name-shadow.diag",
    "std-string-slice-result-type.diag",
    "std-string-slice-unsupported.diag",
    "std-string-split-unsupported.diag",
    "std-string-starts-with-arity.diag",
    "std-string-starts-with-context.diag",
    "std-string-starts-with-helper-shadow.diag",
    "std-string-starts-with-name-shadow.diag",
    "std-string-starts-with-type.diag",
    "std-string-tokenize-unsupported.diag",
    "std-terminal-clear-unsupported.diag",
    "std-terminal-echo-unsupported.diag",
    "std-terminal-is-tty-unsupported.diag",
    "std-terminal-raw-mode-unsupported.diag",
    "std-time-monotonic-arity.diag",
    "std-time-monotonic-helper-shadow.diag",
    "std-time-monotonic-name-shadow.diag",
    "std-time-monotonic-result-context.diag",
    "std-time-now-unsupported.diag",
    "std-time-sleep-arity.diag",
    "std-time-sleep-helper-shadow.diag",
    "std-time-sleep-name-shadow.diag",
    "std-time-sleep-type.diag",
    "std-vec-i32-append-vector-type.diag",
    "std-vec-i32-arity.diag",
    "std-vec-i32-empty-arity.diag",
    "std-vec-i32-helper-shadow.diag",
    "std-vec-i32-index-arity.diag",
    "std-vec-i32-index-index-type.diag",
    "std-vec-i32-index-vector-type.diag",
    "std-vec-i32-len-arity.diag",
    "std-vec-i32-len-type.diag",
    "std-vec-i32-one-sided-equality.diag",
    "std-vec-i32-push-alias.diag",
    "std-vec-i32-result-context.diag",
    "std-vec-i32-type.diag",
    "std-vec-i64-append-vector-type.diag",
    "std-vec-i64-arity.diag",
    "std-vec-i64-empty-arity.diag",
    "std-vec-i64-helper-shadow.diag",
    "std-vec-i64-index-arity.diag",
    "std-vec-i64-index-index-type.diag",
    "std-vec-i64-index-vector-type.diag",
    "std-vec-i64-len-arity.diag",
    "std-vec-i64-len-type.diag",
    "std-vec-i64-one-sided-equality.diag",
    "std-vec-i64-push-alias.diag",
    "std-vec-i64-result-context.diag",
    "std-vec-i64-type.diag",
    "std-vec-string-append-vector-type.diag",
    "std-vec-string-arity.diag",
    "std-vec-string-empty-arity.diag",
    "std-vec-string-helper-shadow.diag",
    "std-vec-string-index-arity.diag",
    "std-vec-string-index-index-type.diag",
    "std-vec-string-index-vector-type.diag",
    "std-vec-string-len-arity.diag",
    "std-vec-string-len-type.diag",
    "std-vec-string-one-sided-equality.diag",
    "std-vec-string-push-alias.diag",
    "std-vec-string-result-context.diag",
    "std-vec-string-type.diag",
    "string-len-arity.diag",
    "string-len-type.diag",
    "struct-field-order-mismatch.diag",
    "struct-missing-field.diag",
    "struct-unknown-field.diag",
    "test-duplicate-name.diag",
    "test-invalid-escaped-name.diag",
    "test-invalid-form.diag",
    "test-invalid-name.diag",
    "test-non-bool.diag",
    "type-mismatch.diag",
    "type-alias-name-conflict.diag",
    "type-alias-value-name-conflict.diag",
    "unclosed-list.diag",
    "unknown-type-alias-target.diag",
    "unsupported-type-alias-target.diag",
    "unknown-function.diag",
    "unknown-struct-local.diag",
    "unknown-struct-parameter.diag",
    "unknown-struct-return.diag",
    "unknown-top-level-form.diag",
    "unsafe-parameter-shadows-callable.diag",
    "unsafe-required-dealloc.diag",
    "unsafe-required-ffi-call.diag",
    "unsafe-required-load.diag",
    "unsafe-required-operation.diag",
    "unsafe-required-ptr-add.diag",
    "unsafe-required-reinterpret.diag",
    "unsafe-required-store.diag",
    "unsafe-required-unchecked-index.diag",
    "unsupported-local-type.diag",
    "unsupported-match-container.diag",
    "unsupported-match-mutation.diag",
    "unsupported-match-payload-type.diag",
    "unsupported-standard-library-call.diag",
    "unsupported-option-result-equality.diag",
    "unsupported-result-string-equality.diag",
    "option-observation-non-option.diag",
    "unsupported-option-result-print.diag",
    "unsupported-result-string-print.diag",
    "unsupported-option-parameter-payload-type.diag",
    "result-observation-non-result.diag",
    "unsupported-option-return-payload-type.diag",
    "unsupported-option-payload-type.diag",
    "unsupported-primitive-struct-field-container.diag",
    "unsupported-array-element-type.diag",
    "unsupported-array-equality.diag",
    "unsupported-array-local-mutation.diag",
    "unsupported-array-print.diag",
    "unsupported-array-signature-element-type.diag",
    "unsupported-float-literal.diag",
    "unsupported-generic-function.diag",
    "unsupported-generic-type-alias.diag",
    "unsupported-generic-type-parameter.diag",
    "unsupported-generic-vec-type.diag",
    "unsupported-map-type.diag",
    "unsupported-signature-type.diag",
    "unsupported-set-type.diag",
    "unsupported-result-parameter-payload-type.diag",
    "unsupported-result-return-payload-type.diag",
    "unsupported-unit-parameter-signature.diag",
    "unsupported-unit-return-signature.diag",
    "unsupported-result-payload-type.diag",
    "unsupported-result-string-bool.diag",
    "unsupported-struct-field-type.diag",
    "unsupported-struct-field-mutation.diag",
    "unsupported-print-unit.diag",
    "unsupported-string-array.diag",
    "unsupported-string-concatenation.diag",
    "unsupported-string-escape.diag",
    "unsupported-string-literal.diag",
    "unsupported-vec-element-type.diag",
    "unsupported-vec-literal.diag",
    "unsupported-vec-nesting.diag",
    "unsupported-vec-option.diag",
    "unsupported-vec-result.diag",
    "unsupported-unsafe-dealloc.diag",
    "unsupported-unsafe-ffi-call.diag",
    "unsupported-unsafe-load.diag",
    "unsupported-unsafe-operation.diag",
    "unsupported-unsafe-ptr-add.diag",
    "unsupported-unsafe-reinterpret.diag",
    "unsupported-unsafe-store.diag",
    "unsupported-unsafe-unchecked-index.diag",
    "while-body-local.diag",
    "while-body-non-unit.diag",
    "while-condition-not-bool.diag",
    "while-final-function.diag",
    "while-final-test.diag",
    "zero-length-array-type.diag",
];

const LOWERING_INSPECTOR_FIXTURES: &[&str] = &[
    "add.checked.lower",
    "add.surface.lower",
    "array-direct-scalars-value-flow.checked.lower",
    "array-direct-scalars-value-flow.surface.lower",
    "array-direct-scalars.checked.lower",
    "array-direct-scalars.surface.lower",
    "array-enum.checked.lower",
    "array-enum.surface.lower",
    "array-string-value-flow.checked.lower",
    "array-string-value-flow.surface.lower",
    "array-string.checked.lower",
    "array-string.surface.lower",
    "array-struct-elements.checked.lower",
    "array-struct-elements.surface.lower",
    "array-struct-fields.checked.lower",
    "array-struct-fields.surface.lower",
    "array-value-flow.checked.lower",
    "array-value-flow.surface.lower",
    "array.checked.lower",
    "array.surface.lower",
    "checked-i64-to-i32-conversion.checked.lower",
    "checked-i64-to-i32-conversion.surface.lower",
    "comments.checked.lower",
    "comments.surface.lower",
    "enum-basic.checked.lower",
    "enum-basic.surface.lower",
    "enum-payload-direct-scalars.checked.lower",
    "enum-payload-direct-scalars.surface.lower",
    "enum-payload-structs.checked.lower",
    "enum-payload-structs.surface.lower",
    "enum-payload-i32.checked.lower",
    "enum-payload-i32.surface.lower",
    "enum-struct-fields.checked.lower",
    "enum-struct-fields.surface.lower",
    "f64-numeric-primitive.checked.lower",
    "f64-numeric-primitive.surface.lower",
    "f64-to-i32-result.checked.lower",
    "f64-to-i32-result.surface.lower",
    "f64-to-i64-result.checked.lower",
    "f64-to-i64-result.surface.lower",
    "i64-numeric-primitive.checked.lower",
    "i64-numeric-primitive.surface.lower",
    "numeric-widening-conversions.checked.lower",
    "numeric-widening-conversions.surface.lower",
    "numeric-struct-fields.checked.lower",
    "numeric-struct-fields.surface.lower",
    "formatter-stability-v1.checked.lower",
    "formatter-stability-v1.surface.lower",
    "host-io.checked.lower",
    "host-io-result.checked.lower",
    "host-io-result.surface.lower",
    "host-io.surface.lower",
    "if.checked.lower",
    "if.surface.lower",
    "f64-to-string.checked.lower",
    "f64-to-string.surface.lower",
    "integer-to-string.checked.lower",
    "integer-to-string.surface.lower",
    "composite-locals.checked.lower",
    "composite-locals.surface.lower",
    "composite-struct-fields.checked.lower",
    "composite-struct-fields.surface.lower",
    "local-variables.checked.lower",
    "local-variables.surface.lower",
    "option-result-flow.checked.lower",
    "option-result-flow.surface.lower",
    "option-result-match.checked.lower",
    "option-result-match.surface.lower",
    "option-result-payload.checked.lower",
    "option-result-payload.surface.lower",
    "option-result.checked.lower",
    "option-result.surface.lower",
    "owned-string-concat.checked.lower",
    "owned-string-concat.surface.lower",
    "print-bool.checked.lower",
    "print-bool.surface.lower",
    "primitive-struct-fields.checked.lower",
    "primitive-struct-fields.surface.lower",
    "random.checked.lower",
    "random.surface.lower",
    "result-helpers.checked.lower",
    "result-helpers.surface.lower",
    "string-print.checked.lower",
    "string-print.surface.lower",
    "standard-runtime.checked.lower",
    "standard-runtime.surface.lower",
    "standard-io-host-env.checked.lower",
    "standard-io-host-env.surface.lower",
    "stdin-result.checked.lower",
    "stdin-result.surface.lower",
    "string-parse-i32-result.checked.lower",
    "string-parse-i32-result.surface.lower",
    "string-parse-i64-result.checked.lower",
    "string-parse-i64-result.surface.lower",
    "string-parse-u32-result.checked.lower",
    "string-parse-u32-result.surface.lower",
    "string-parse-u64-result.checked.lower",
    "string-parse-u64-result.surface.lower",
    "string-parse-f64-result.checked.lower",
    "string-parse-f64-result.surface.lower",
    "string-parse-bool-result.checked.lower",
    "string-parse-bool-result.surface.lower",
    "string-value-flow.checked.lower",
    "string-value-flow.surface.lower",
    "struct-value-flow.checked.lower",
    "struct-value-flow.surface.lower",
    "struct.checked.lower",
    "struct.surface.lower",
    "time-sleep.checked.lower",
    "time-sleep.surface.lower",
    "top-level-test.checked.lower",
    "top-level-test.surface.lower",
    "type-aliases.checked.lower",
    "type-aliases.surface.lower",
    "u32-numeric-primitive.checked.lower",
    "u32-numeric-primitive.surface.lower",
    "u64-numeric-primitive.checked.lower",
    "u64-numeric-primitive.surface.lower",
    "unsafe.checked.lower",
    "unsafe.surface.lower",
    "unsigned-integer-to-string.checked.lower",
    "unsigned-integer-to-string.surface.lower",
    "vec-i32.checked.lower",
    "vec-i32.surface.lower",
    "while.checked.lower",
    "while.surface.lower",
];

const LOWERING_INSPECTOR_CASES: &[LoweringInspectorCase] = &[
    LoweringInspectorCase {
        source: "examples/add.slo",
        surface_snapshot: "add.surface.lower",
        checked_snapshot: "add.checked.lower",
    },
    LoweringInspectorCase {
        source: "tests/top-level-test.slo",
        surface_snapshot: "top-level-test.surface.lower",
        checked_snapshot: "top-level-test.checked.lower",
    },
    LoweringInspectorCase {
        source: "tests/type-aliases.slo",
        surface_snapshot: "type-aliases.surface.lower",
        checked_snapshot: "type-aliases.checked.lower",
    },
    LoweringInspectorCase {
        source: "tests/comments.slo",
        surface_snapshot: "comments.surface.lower",
        checked_snapshot: "comments.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/enum-basic.slo",
        surface_snapshot: "enum-basic.surface.lower",
        checked_snapshot: "enum-basic.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/enum-payload-i32.slo",
        surface_snapshot: "enum-payload-i32.surface.lower",
        checked_snapshot: "enum-payload-i32.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/enum-payload-direct-scalars.slo",
        surface_snapshot: "enum-payload-direct-scalars.surface.lower",
        checked_snapshot: "enum-payload-direct-scalars.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/enum-payload-structs.slo",
        surface_snapshot: "enum-payload-structs.surface.lower",
        checked_snapshot: "enum-payload-structs.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/enum-struct-fields.slo",
        surface_snapshot: "enum-struct-fields.surface.lower",
        checked_snapshot: "enum-struct-fields.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/primitive-struct-fields.slo",
        surface_snapshot: "primitive-struct-fields.surface.lower",
        checked_snapshot: "primitive-struct-fields.checked.lower",
    },
    LoweringInspectorCase {
        source: "tests/f64-numeric-primitive.slo",
        surface_snapshot: "f64-numeric-primitive.surface.lower",
        checked_snapshot: "f64-numeric-primitive.checked.lower",
    },
    LoweringInspectorCase {
        source: "tests/i64-numeric-primitive.slo",
        surface_snapshot: "i64-numeric-primitive.surface.lower",
        checked_snapshot: "i64-numeric-primitive.checked.lower",
    },
    LoweringInspectorCase {
        source: "tests/u32-numeric-primitive.slo",
        surface_snapshot: "u32-numeric-primitive.surface.lower",
        checked_snapshot: "u32-numeric-primitive.checked.lower",
    },
    LoweringInspectorCase {
        source: "tests/u64-numeric-primitive.slo",
        surface_snapshot: "u64-numeric-primitive.surface.lower",
        checked_snapshot: "u64-numeric-primitive.checked.lower",
    },
    LoweringInspectorCase {
        source: "tests/integer-to-string.slo",
        surface_snapshot: "integer-to-string.surface.lower",
        checked_snapshot: "integer-to-string.checked.lower",
    },
    LoweringInspectorCase {
        source: "tests/unsigned-integer-to-string.slo",
        surface_snapshot: "unsigned-integer-to-string.surface.lower",
        checked_snapshot: "unsigned-integer-to-string.checked.lower",
    },
    LoweringInspectorCase {
        source: "tests/f64-to-string.slo",
        surface_snapshot: "f64-to-string.surface.lower",
        checked_snapshot: "f64-to-string.checked.lower",
    },
    LoweringInspectorCase {
        source: "tests/f64-to-i32-result.slo",
        surface_snapshot: "f64-to-i32-result.surface.lower",
        checked_snapshot: "f64-to-i32-result.checked.lower",
    },
    LoweringInspectorCase {
        source: "tests/f64-to-i64-result.slo",
        surface_snapshot: "f64-to-i64-result.surface.lower",
        checked_snapshot: "f64-to-i64-result.checked.lower",
    },
    LoweringInspectorCase {
        source: "tests/numeric-widening-conversions.slo",
        surface_snapshot: "numeric-widening-conversions.surface.lower",
        checked_snapshot: "numeric-widening-conversions.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/numeric-struct-fields.slo",
        surface_snapshot: "numeric-struct-fields.surface.lower",
        checked_snapshot: "numeric-struct-fields.checked.lower",
    },
    LoweringInspectorCase {
        source: "tests/checked-i64-to-i32-conversion.slo",
        surface_snapshot: "checked-i64-to-i32-conversion.surface.lower",
        checked_snapshot: "checked-i64-to-i32-conversion.checked.lower",
    },
    LoweringInspectorCase {
        source: "tests/formatter-stability-v1.fmt",
        surface_snapshot: "formatter-stability-v1.surface.lower",
        checked_snapshot: "formatter-stability-v1.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/host-io.slo",
        surface_snapshot: "host-io.surface.lower",
        checked_snapshot: "host-io.checked.lower",
    },
    LoweringInspectorCase {
        source: "tests/host-io-result.slo",
        surface_snapshot: "host-io-result.surface.lower",
        checked_snapshot: "host-io-result.checked.lower",
    },
    LoweringInspectorCase {
        source: "tests/unsafe.slo",
        surface_snapshot: "unsafe.surface.lower",
        checked_snapshot: "unsafe.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/local-variables.slo",
        surface_snapshot: "local-variables.surface.lower",
        checked_snapshot: "local-variables.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/composite-locals.slo",
        surface_snapshot: "composite-locals.surface.lower",
        checked_snapshot: "composite-locals.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/composite-struct-fields.slo",
        surface_snapshot: "composite-struct-fields.surface.lower",
        checked_snapshot: "composite-struct-fields.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/array-struct-fields.slo",
        surface_snapshot: "array-struct-fields.surface.lower",
        checked_snapshot: "array-struct-fields.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/if.slo",
        surface_snapshot: "if.surface.lower",
        checked_snapshot: "if.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/while.slo",
        surface_snapshot: "while.surface.lower",
        checked_snapshot: "while.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/struct.slo",
        surface_snapshot: "struct.surface.lower",
        checked_snapshot: "struct.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/struct-value-flow.slo",
        surface_snapshot: "struct-value-flow.surface.lower",
        checked_snapshot: "struct-value-flow.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/array.slo",
        surface_snapshot: "array.surface.lower",
        checked_snapshot: "array.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/array-direct-scalars.slo",
        surface_snapshot: "array-direct-scalars.surface.lower",
        checked_snapshot: "array-direct-scalars.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/array-direct-scalars-value-flow.slo",
        surface_snapshot: "array-direct-scalars-value-flow.surface.lower",
        checked_snapshot: "array-direct-scalars-value-flow.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/array-enum.slo",
        surface_snapshot: "array-enum.surface.lower",
        checked_snapshot: "array-enum.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/array-string.slo",
        surface_snapshot: "array-string.surface.lower",
        checked_snapshot: "array-string.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/array-string-value-flow.slo",
        surface_snapshot: "array-string-value-flow.surface.lower",
        checked_snapshot: "array-string-value-flow.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/array-value-flow.slo",
        surface_snapshot: "array-value-flow.surface.lower",
        checked_snapshot: "array-value-flow.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/array-struct-elements.slo",
        surface_snapshot: "array-struct-elements.surface.lower",
        checked_snapshot: "array-struct-elements.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/option-result.slo",
        surface_snapshot: "option-result.surface.lower",
        checked_snapshot: "option-result.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/option-result-flow.slo",
        surface_snapshot: "option-result-flow.surface.lower",
        checked_snapshot: "option-result-flow.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/option-result-match.slo",
        surface_snapshot: "option-result-match.surface.lower",
        checked_snapshot: "option-result-match.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/option-result-payload.slo",
        surface_snapshot: "option-result-payload.surface.lower",
        checked_snapshot: "option-result-payload.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/string-print.slo",
        surface_snapshot: "string-print.surface.lower",
        checked_snapshot: "string-print.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/string-value-flow.slo",
        surface_snapshot: "string-value-flow.surface.lower",
        checked_snapshot: "string-value-flow.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/print-bool.slo",
        surface_snapshot: "print-bool.surface.lower",
        checked_snapshot: "print-bool.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/random.slo",
        surface_snapshot: "random.surface.lower",
        checked_snapshot: "random.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/stdin-result.slo",
        surface_snapshot: "stdin-result.surface.lower",
        checked_snapshot: "stdin-result.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/string-parse-i32-result.slo",
        surface_snapshot: "string-parse-i32-result.surface.lower",
        checked_snapshot: "string-parse-i32-result.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/string-parse-i64-result.slo",
        surface_snapshot: "string-parse-i64-result.surface.lower",
        checked_snapshot: "string-parse-i64-result.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/string-parse-u32-result.slo",
        surface_snapshot: "string-parse-u32-result.surface.lower",
        checked_snapshot: "string-parse-u32-result.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/string-parse-u64-result.slo",
        surface_snapshot: "string-parse-u64-result.surface.lower",
        checked_snapshot: "string-parse-u64-result.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/string-parse-f64-result.slo",
        surface_snapshot: "string-parse-f64-result.surface.lower",
        checked_snapshot: "string-parse-f64-result.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/string-parse-bool-result.slo",
        surface_snapshot: "string-parse-bool-result.surface.lower",
        checked_snapshot: "string-parse-bool-result.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/result-helpers.slo",
        surface_snapshot: "result-helpers.surface.lower",
        checked_snapshot: "result-helpers.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/standard-runtime.slo",
        surface_snapshot: "standard-runtime.surface.lower",
        checked_snapshot: "standard-runtime.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/time-sleep.slo",
        surface_snapshot: "time-sleep.surface.lower",
        checked_snapshot: "time-sleep.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/owned-string-concat.slo",
        surface_snapshot: "owned-string-concat.surface.lower",
        checked_snapshot: "owned-string-concat.checked.lower",
    },
    LoweringInspectorCase {
        source: "tests/standard-io-host-env.slo",
        surface_snapshot: "standard-io-host-env.surface.lower",
        checked_snapshot: "standard-io-host-env.checked.lower",
    },
    LoweringInspectorCase {
        source: "examples/vec-i32.slo",
        surface_snapshot: "vec-i32.surface.lower",
        checked_snapshot: "vec-i32.checked.lower",
    },
];

const GLAGOL_TEST_FIXTURES: &[&str] = &[
    "array-direct-scalars-value-flow.slo",
    "array-direct-scalars.slo",
    "array-enum.slo",
    "array-string-value-flow.slo",
    "array-string.slo",
    "array-struct-elements.slo",
    "array-struct-fields.slo",
    "array-value-flow.slo",
    "array.slo",
    "boolean-logic.slo",
    "canonical.fmt",
    "checked-i64-to-i32-conversion.slo",
    "composite-locals.slo",
    "composite-struct-fields.slo",
    "comments.slo",
    "enum-basic.slo",
    "enum-payload-direct-scalars.slo",
    "enum-payload-structs.slo",
    "enum-payload-i32.slo",
    "enum-struct-fields.slo",
    "f64-to-i32-result.slo",
    "f64-to-i64-result.slo",
    "f64-to-string.slo",
    "f64-numeric-primitive.slo",
    "formatter-stability-v1.fmt",
    "host-io.slo",
    "host-io-result.slo",
    "i64-numeric-primitive.slo",
    "if.slo",
    "integer-bitwise.slo",
    "integer-remainder.slo",
    "integer-to-string.slo",
    "local-variables.slo",
    "numeric-struct-fields.slo",
    "numeric-widening-conversions.slo",
    "option-result-flow.slo",
    "option-result-match.slo",
    "option-result-payload.slo",
    "option-result.slo",
    "owned-string-concat.slo",
    "primitive-struct-fields.slo",
    "print-bool.slo",
    "random.slo",
    "result-helpers.slo",
    "standard-io-host-env.slo",
    "standard-runtime.slo",
    "stdin-result.slo",
    "string-parse-i32-result.slo",
    "string-parse-i64-result.slo",
    "string-parse-u32-result.slo",
    "string-parse-u64-result.slo",
    "string-parse-f64-result.slo",
    "string-parse-bool-result.slo",
    "string-print.slo",
    "string-value-flow.slo",
    "struct-value-flow.slo",
    "struct.slo",
    "time-sleep.slo",
    "top-level-test.fmt",
    "top-level-test.slo",
    "type-aliases.slo",
    "u32-numeric-primitive.slo",
    "u64-numeric-primitive.slo",
    "unsafe.slo",
    "unsigned-integer-to-string.slo",
    "vec-i32.slo",
    "while.slo",
];

const SLOVO_FORMATTER_FIXTURES: &[&str] = &[
    "array-direct-scalars-value-flow.slo",
    "array-direct-scalars.slo",
    "array-enum.slo",
    "array-string-value-flow.slo",
    "array-string.slo",
    "array-struct-elements.slo",
    "array-struct-fields.slo",
    "array-value-flow.slo",
    "array.slo",
    "boolean-logic.slo",
    "canonical.slo",
    "checked-i64-to-i32-conversion.slo",
    "composite-locals.slo",
    "composite-struct-fields.slo",
    "comments.slo",
    "enum-basic.slo",
    "enum-payload-direct-scalars.slo",
    "enum-payload-structs.slo",
    "enum-payload-i32.slo",
    "enum-struct-fields.slo",
    "f64-to-i32-result.slo",
    "f64-to-i64-result.slo",
    "f64-to-string.slo",
    "f64-numeric-primitive.slo",
    "host-io.slo",
    "host-io-result.slo",
    "i64-numeric-primitive.slo",
    "if.slo",
    "integer-bitwise.slo",
    "integer-remainder.slo",
    "integer-to-string.slo",
    "local-variables.slo",
    "numeric-struct-fields.slo",
    "numeric-widening-conversions.slo",
    "option-result-flow.slo",
    "option-result-match.slo",
    "option-result-payload.slo",
    "option-result.slo",
    "owned-string-concat.slo",
    "primitive-struct-fields.slo",
    "print-bool.slo",
    "random.slo",
    "result-helpers.slo",
    "standard-runtime.slo",
    "std-source-layout-alpha.slo",
    "stdin-result.slo",
    "string-parse-i32-result.slo",
    "string-parse-i64-result.slo",
    "string-parse-u32-result.slo",
    "string-parse-u64-result.slo",
    "string-parse-f64-result.slo",
    "string-parse-bool-result.slo",
    "string-print.slo",
    "string-value-flow.slo",
    "struct-value-flow.slo",
    "struct.slo",
    "time-sleep.slo",
    "top-level-test.slo",
    "type-aliases.slo",
    "u32-numeric-primitive.slo",
    "u64-numeric-primitive.slo",
    "unsafe.slo",
    "unsigned-integer-to-string.slo",
    "vec-bool.slo",
    "vec-f64.slo",
    "vec-i32.slo",
    "vec-i64.slo",
    "vec-string.slo",
    "while.slo",
];

const SLOVO_V0_SUPPORTED_COMPATIBILITY_FIXTURES: &[&str] = &[
    "add.slo",
    "array.slo",
    "if.slo",
    "local-variables.slo",
    "option-result.slo",
    "struct.slo",
    "top-level-test.slo",
    "unsafe.slo",
    "while.slo",
];

const SLOVO_V0_FORMATTER_COMPATIBILITY_FIXTURES: &[&str] = &[
    "array.slo",
    "canonical.slo",
    "if.slo",
    "local-variables.slo",
    "option-result.slo",
    "struct.slo",
    "top-level-test.slo",
    "unsafe.slo",
    "while.slo",
];

const STANDARD_MATH_SOURCE_HELPERS_ALPHA: &[&str] = &[
    "abs_i32",
    "neg_i32",
    "rem_i32",
    "bit_and_i32",
    "bit_or_i32",
    "bit_xor_i32",
    "is_even_i32",
    "is_odd_i32",
    "min_i32",
    "max_i32",
    "clamp_i32",
    "square_i32",
    "cube_i32",
    "is_zero_i32",
    "is_positive_i32",
    "is_negative_i32",
    "in_range_i32",
    "abs_i64",
    "neg_i64",
    "rem_i64",
    "bit_and_i64",
    "bit_or_i64",
    "bit_xor_i64",
    "is_even_i64",
    "is_odd_i64",
    "min_i64",
    "max_i64",
    "clamp_i64",
    "square_i64",
    "cube_i64",
    "is_zero_i64",
    "is_positive_i64",
    "is_negative_i64",
    "in_range_i64",
    "abs_f64",
    "neg_f64",
    "min_f64",
    "max_f64",
    "clamp_f64",
    "square_f64",
    "cube_f64",
    "is_zero_f64",
    "is_positive_f64",
    "is_negative_f64",
    "in_range_f64",
];

const STANDARD_OPTION_SOURCE_HELPERS_ALPHA: &[&str] = &[
    "some_i32",
    "none_i32",
    "is_some_i32",
    "is_none_i32",
    "unwrap_some_i32",
    "unwrap_or_i32",
    "some_u32",
    "none_u32",
    "is_some_u32",
    "is_none_u32",
    "unwrap_some_u32",
    "unwrap_or_u32",
    "some_i64",
    "none_i64",
    "is_some_i64",
    "is_none_i64",
    "unwrap_some_i64",
    "unwrap_or_i64",
    "some_u64",
    "none_u64",
    "is_some_u64",
    "is_none_u64",
    "unwrap_some_u64",
    "unwrap_or_u64",
    "some_f64",
    "none_f64",
    "is_some_f64",
    "is_none_f64",
    "unwrap_some_f64",
    "unwrap_or_f64",
    "some_bool",
    "none_bool",
    "is_some_bool",
    "is_none_bool",
    "unwrap_some_bool",
    "unwrap_or_bool",
    "some_string",
    "none_string",
    "is_some_string",
    "is_none_string",
    "unwrap_some_string",
    "unwrap_or_string",
];

const STANDARD_OPTION_RESULT_BRIDGE_HELPERS_ALPHA: &[&str] = &[
    "some_or_err_i32",
    "some_or_err_u32",
    "some_or_err_i64",
    "some_or_err_u64",
    "some_or_err_f64",
    "some_or_err_bool",
    "some_or_err_string",
];

const STANDARD_TIME_SOURCE_FACADE_ALPHA: &[&str] = &["monotonic_ms", "sleep_ms_zero"];

const STANDARD_RANDOM_SOURCE_FACADE_ALPHA: &[&str] = &["random_i32", "random_i32_non_negative"];

const STANDARD_ENV_SOURCE_FACADE_ALPHA: &[&str] = &[
    "get",
    "get_result",
    "get_option",
    "has",
    "get_or",
    "get_i32_result",
    "get_i32_option",
    "get_i32_or_zero",
    "get_i32_or",
    "get_u32_result",
    "get_u32_option",
    "get_u32_or_zero",
    "get_u32_or",
    "get_i64_result",
    "get_i64_option",
    "get_i64_or_zero",
    "get_i64_or",
    "get_u64_result",
    "get_u64_option",
    "get_u64_or_zero",
    "get_u64_or",
    "get_f64_result",
    "get_f64_option",
    "get_f64_or_zero",
    "get_f64_or",
    "get_bool_result",
    "get_bool_option",
    "get_bool_or_false",
    "get_bool_or",
];

const STANDARD_FS_SOURCE_FACADE_ALPHA: &[&str] = &[
    "read_text",
    "read_text_result",
    "read_text_option",
    "write_text_status",
    "write_text_result",
    "exists",
    "is_file",
    "is_dir",
    "remove_file_result",
    "create_dir_result",
    "remove_file_ok",
    "create_dir_ok",
    "open_text_read_result",
    "read_open_text_result",
    "close_result",
    "read_text_via_handle_result",
    "close_ok",
    "read_text_or",
    "write_text_ok",
    "read_i32_result",
    "read_i32_option",
    "read_i32_or_zero",
    "read_i32_or",
    "read_u32_result",
    "read_u32_option",
    "read_u32_or_zero",
    "read_u32_or",
    "read_i64_result",
    "read_i64_option",
    "read_i64_or_zero",
    "read_i64_or",
    "read_u64_result",
    "read_u64_option",
    "read_u64_or_zero",
    "read_u64_or",
    "read_f64_result",
    "read_f64_option",
    "read_f64_or_zero",
    "read_f64_or",
    "read_bool_result",
    "read_bool_option",
    "read_bool_or_false",
    "read_bool_or",
];

const STANDARD_NET_SOURCE_FACADE_ALPHA: &[&str] = &[
    "tcp_connect_loopback_result",
    "tcp_listen_loopback_result",
    "tcp_bound_port_result",
    "tcp_accept_result",
    "tcp_read_all_result",
    "tcp_write_text_result",
    "tcp_close_result",
    "tcp_write_text_ok",
    "tcp_close_ok",
];

const STANDARD_NET_RUNTIME_NAMES: &[&str] = &[
    "std.net.tcp_connect_loopback_result",
    "std.net.tcp_listen_loopback_result",
    "std.net.tcp_bound_port_result",
    "std.net.tcp_accept_result",
    "std.net.tcp_read_all_result",
    "std.net.tcp_write_text_result",
    "std.net.tcp_close_result",
];

const STANDARD_JSON_SOURCE_FACADE_ALPHA: &[&str] = &[
    "quote_string",
    "null_value",
    "bool_value",
    "i32_value",
    "u32_value",
    "i64_value",
    "u64_value",
    "f64_value",
    "parse_bool_value_result",
    "parse_i32_value_result",
    "parse_u32_value_result",
    "parse_i64_value_result",
    "parse_u64_value_result",
    "parse_f64_value_result",
    "parse_null_value_result",
    "field_string",
    "field_bool",
    "field_i32",
    "field_u32",
    "field_i64",
    "field_u64",
    "field_f64",
    "field_null",
    "array0",
    "array1",
    "array2",
    "array3",
    "object0",
    "object1",
    "object2",
    "object3",
];

const STANDARD_JSON_RUNTIME_NAMES: &[&str] = &[
    "std.json.quote_string",
    "std.string.concat",
    "std.num.i32_to_string",
    "std.num.u32_to_string",
    "std.num.i64_to_string",
    "std.num.u64_to_string",
    "std.num.f64_to_string",
    "std.json.parse_bool_value_result",
    "std.json.parse_i32_value_result",
    "std.json.parse_u32_value_result",
    "std.json.parse_i64_value_result",
    "std.json.parse_u64_value_result",
    "std.json.parse_f64_value_result",
];

const STANDARD_PROCESS_SOURCE_FACADE_ALPHA: &[&str] = &[
    "argc",
    "arg",
    "arg_result",
    "arg_option",
    "has_arg",
    "arg_or",
    "arg_or_empty",
    "arg_i32_result",
    "arg_i32_option",
    "arg_i32_or_zero",
    "arg_i32_or",
    "arg_u32_result",
    "arg_u32_option",
    "arg_u32_or_zero",
    "arg_u32_or",
    "arg_i64_result",
    "arg_i64_option",
    "arg_i64_or_zero",
    "arg_i64_or",
    "arg_u64_result",
    "arg_u64_option",
    "arg_u64_or_zero",
    "arg_u64_or",
    "arg_f64_result",
    "arg_f64_option",
    "arg_f64_or_zero",
    "arg_f64_or",
    "arg_bool_result",
    "arg_bool_option",
    "arg_bool_or_false",
    "arg_bool_or",
];

const STANDARD_STRING_SOURCE_FACADE_ALPHA: &[&str] = &[
    "len",
    "concat",
    "byte_at_result",
    "slice_result",
    "starts_with",
    "ends_with",
    "parse_i32_result",
    "parse_i32_option",
    "parse_u32_result",
    "parse_u32_option",
    "parse_i64_result",
    "parse_i64_option",
    "parse_u64_result",
    "parse_u64_option",
    "parse_f64_result",
    "parse_f64_option",
    "parse_bool_result",
    "parse_bool_option",
    "parse_i32_or_zero",
    "parse_u32_or_zero",
    "parse_i64_or_zero",
    "parse_u64_or_zero",
    "parse_f64_or_zero",
    "parse_bool_or_false",
    "parse_i32_or",
    "parse_u32_or",
    "parse_i64_or",
    "parse_u64_or",
    "parse_f64_or",
    "parse_bool_or",
];

const STANDARD_NUM_SOURCE_FACADE_ALPHA: &[&str] = &[
    "i32_to_i64",
    "i32_to_f64",
    "i64_to_f64",
    "i64_to_i32_result",
    "f64_to_i32_result",
    "f64_to_i64_result",
    "i32_to_string",
    "u32_to_string",
    "i64_to_string",
    "u64_to_string",
    "f64_to_string",
    "i64_to_i32_or",
    "f64_to_i32_or",
    "f64_to_i64_or",
];

const STANDARD_IO_SOURCE_FACADE_ALPHA: &[&str] = &[
    "print_i32_zero",
    "print_i64_zero",
    "print_u32_zero",
    "print_u64_zero",
    "print_f64_zero",
    "print_string_zero",
    "print_bool_zero",
    "print_i32_value",
    "print_i64_value",
    "print_u32_value",
    "print_u64_value",
    "print_f64_value",
    "print_string_value",
    "print_bool_value",
    "read_stdin_result",
    "read_stdin_option",
    "read_stdin_or",
    "read_stdin_i32_result",
    "read_stdin_i32_option",
    "read_stdin_i32_or_zero",
    "read_stdin_i32_or",
    "read_stdin_u32_result",
    "read_stdin_u32_option",
    "read_stdin_u32_or_zero",
    "read_stdin_u32_or",
    "read_stdin_i64_result",
    "read_stdin_i64_option",
    "read_stdin_i64_or_zero",
    "read_stdin_i64_or",
    "read_stdin_u64_result",
    "read_stdin_u64_option",
    "read_stdin_u64_or_zero",
    "read_stdin_u64_or",
    "read_stdin_f64_result",
    "read_stdin_f64_option",
    "read_stdin_f64_or_zero",
    "read_stdin_f64_or",
    "read_stdin_bool_result",
    "read_stdin_bool_option",
    "read_stdin_bool_or_false",
    "read_stdin_bool_or",
];

const STANDARD_CLI_SOURCE_FACADE_ALPHA: &[&str] = &[
    "arg_text_result",
    "arg_text_option",
    "arg_i32_result",
    "arg_i32_option",
    "arg_i32_or_zero",
    "arg_i32_or",
    "arg_u32_result",
    "arg_u32_option",
    "arg_u32_or_zero",
    "arg_u32_or",
    "arg_i64_result",
    "arg_i64_option",
    "arg_i64_or_zero",
    "arg_i64_or",
    "arg_u64_result",
    "arg_u64_option",
    "arg_u64_or_zero",
    "arg_u64_or",
    "arg_f64_result",
    "arg_f64_option",
    "arg_f64_or_zero",
    "arg_f64_or",
    "arg_bool_result",
    "arg_bool_option",
    "arg_bool_or_false",
    "arg_bool_or",
];

const STANDARD_STRING_PARSE_RESULT_HELPERS_ALPHA: &[&str] = &[
    "parse_i32_result",
    "parse_u32_result",
    "parse_i64_result",
    "parse_u64_result",
    "parse_f64_result",
    "parse_bool_result",
];

const STANDARD_CLI_LOCAL_SOURCE_FALLBACK_EXPECTED_OUTPUT: &str = concat!(
    "test \"explicit local cli arg text missing\" ... ok\n",
    "test \"explicit local cli arg text option\" ... ok\n",
    "test \"explicit local cli arg i32 missing\" ... ok\n",
    "test \"explicit local cli arg i32 fallback missing\" ... ok\n",
    "test \"explicit local cli arg u32 missing\" ... ok\n",
    "test \"explicit local cli arg u32 fallback missing\" ... ok\n",
    "test \"explicit local cli arg i64 missing\" ... ok\n",
    "test \"explicit local cli arg i64 fallback missing\" ... ok\n",
    "test \"explicit local cli arg u64 missing\" ... ok\n",
    "test \"explicit local cli arg u64 fallback missing\" ... ok\n",
    "test \"explicit local cli arg f64 missing\" ... ok\n",
    "test \"explicit local cli arg f64 fallback missing\" ... ok\n",
    "test \"explicit local cli arg bool missing\" ... ok\n",
    "test \"explicit local cli arg bool fallback missing\" ... ok\n",
    "test \"explicit local cli typed option\" ... ok\n",
    "test \"explicit local cli typed custom fallback\" ... ok\n",
    "test \"explicit local cli facade all\" ... ok\n",
    "17 test(s) passed\n",
);

const STANDARD_VEC_I32_SOURCE_FACADE_ALPHA: &[&str] = &[
    "empty",
    "append",
    "len",
    "at",
    "singleton",
    "append2",
    "append3",
    "pair",
    "triple",
    "repeat",
    "range",
    "range_from_zero",
    "is_empty",
    "index_or",
    "first_or",
    "last_or",
    "index_option",
    "first_option",
    "last_option",
    "index_of_option",
    "last_index_of_option",
    "count_of",
    "contains",
    "sum",
    "concat",
    "take",
    "starts_with",
    "without_prefix",
    "ends_with",
    "without_suffix",
    "drop",
    "reverse",
    "subvec",
    "insert_at",
    "insert_range",
    "replace_at",
    "replace_range",
    "remove_at",
    "remove_range",
];

const STANDARD_VEC_I64_SOURCE_FACADE_ALPHA: &[&str] = &[
    "empty",
    "append",
    "len",
    "at",
    "singleton",
    "append2",
    "append3",
    "pair",
    "triple",
    "is_empty",
    "index_or",
    "first_or",
    "last_or",
    "index_option",
    "first_option",
    "last_option",
    "index_of_option",
    "last_index_of_option",
    "contains",
    "count_of",
    "sum",
    "concat",
    "take",
    "starts_with",
    "without_prefix",
    "ends_with",
    "without_suffix",
    "drop",
    "reverse",
    "subvec",
    "insert_at",
    "insert_range",
    "replace_at",
    "replace_range",
    "remove_at",
    "remove_range",
];

const STANDARD_VEC_F64_SOURCE_FACADE_ALPHA: &[&str] = &[
    "empty",
    "append",
    "len",
    "at",
    "singleton",
    "append2",
    "append3",
    "pair",
    "triple",
    "is_empty",
    "index_or",
    "first_or",
    "last_or",
    "index_option",
    "first_option",
    "last_option",
    "index_of_option",
    "last_index_of_option",
    "contains",
    "count_of",
    "sum",
    "concat",
    "take",
    "starts_with",
    "without_prefix",
    "ends_with",
    "without_suffix",
    "drop",
    "reverse",
    "subvec",
    "insert_at",
    "insert_range",
    "replace_at",
    "replace_range",
    "remove_at",
    "remove_range",
];

const STANDARD_VEC_BOOL_SOURCE_FACADE_ALPHA: &[&str] = &[
    "empty",
    "append",
    "len",
    "at",
    "singleton",
    "append2",
    "append3",
    "pair",
    "triple",
    "is_empty",
    "index_or",
    "first_or",
    "last_or",
    "index_option",
    "first_option",
    "last_option",
    "index_of_option",
    "last_index_of_option",
    "contains",
    "count_of",
    "concat",
    "take",
    "drop",
    "reverse",
    "subvec",
    "insert_at",
    "insert_range",
    "replace_at",
    "replace_range",
    "remove_at",
    "remove_range",
];

const STANDARD_VEC_STRING_SOURCE_FACADE_ALPHA: &[&str] = &[
    "empty",
    "append",
    "len",
    "at",
    "singleton",
    "append2",
    "append3",
    "pair",
    "triple",
    "is_empty",
    "index_or",
    "first_or",
    "last_or",
    "index_option",
    "first_option",
    "last_option",
    "index_of_option",
    "last_index_of_option",
    "contains",
    "count_of",
    "concat",
    "take",
    "drop",
    "reverse",
    "subvec",
    "insert_at",
    "insert_range",
    "replace_at",
    "replace_range",
    "remove_at",
    "remove_range",
];

const STANDARD_ENV_MISSING_NAME: &str = "GLAGOL_STD_LAYOUT_LOCAL_ENV_ALPHA_UNLIKELY_MISSING";
const STANDARD_ENV_PRESENT_NAME: &str = "GLAGOL_STD_LAYOUT_LOCAL_ENV_ALPHA_PRESENT";
const STANDARD_ENV_PRESENT_VALUE: &str = "glagol-std-layout-local-env-alpha-value";
const STANDARD_ENV_PRESENT_I32_NAME: &str = "GLAGOL_STD_LAYOUT_LOCAL_ENV_ALPHA_PRESENT_I32";
const STANDARD_ENV_PRESENT_I32_VALUE: &str = "42";
const STANDARD_ENV_PRESENT_U32_NAME: &str = "GLAGOL_STD_LAYOUT_LOCAL_ENV_ALPHA_PRESENT_U32";
const STANDARD_ENV_PRESENT_U32_VALUE: &str = "42";
const STANDARD_ENV_PRESENT_I64_NAME: &str = "GLAGOL_STD_LAYOUT_LOCAL_ENV_ALPHA_PRESENT_I64";
const STANDARD_ENV_PRESENT_I64_VALUE: &str = "42000000000";
const STANDARD_ENV_PRESENT_U64_NAME: &str = "GLAGOL_STD_LAYOUT_LOCAL_ENV_ALPHA_PRESENT_U64";
const STANDARD_ENV_PRESENT_U64_VALUE: &str = "4294967296";
const STANDARD_ENV_PRESENT_F64_NAME: &str = "GLAGOL_STD_LAYOUT_LOCAL_ENV_ALPHA_PRESENT_F64";
const STANDARD_ENV_PRESENT_F64_VALUE: &str = "42.5";
const STANDARD_ENV_PRESENT_BOOL_NAME: &str = "GLAGOL_STD_LAYOUT_LOCAL_ENV_ALPHA_PRESENT_BOOL";
const STANDARD_ENV_PRESENT_BOOL_VALUE: &str = "true";
const STANDARD_ENV_INVALID_NAME: &str = "GLAGOL_STD_LAYOUT_LOCAL_ENV_ALPHA_INVALID";
const STANDARD_ENV_INVALID_VALUE: &str = "bad";
const STANDARD_IMPORT_ENV_MISSING_NAME: &str = "GLAGOL_STD_IMPORT_ENV_ALPHA_UNLIKELY_MISSING";
const STANDARD_IMPORT_ENV_PRESENT_NAME: &str = "GLAGOL_STD_IMPORT_ENV_ALPHA_PRESENT";
const STANDARD_IMPORT_ENV_PRESENT_VALUE: &str = "glagol-std-import-env-alpha-value";
const STANDARD_IMPORT_ENV_PRESENT_I32_NAME: &str = "GLAGOL_STD_IMPORT_ENV_ALPHA_PRESENT_I32";
const STANDARD_IMPORT_ENV_PRESENT_I32_VALUE: &str = "42";
const STANDARD_IMPORT_ENV_PRESENT_U32_NAME: &str = "GLAGOL_STD_IMPORT_ENV_ALPHA_PRESENT_U32";
const STANDARD_IMPORT_ENV_PRESENT_U32_VALUE: &str = "42";
const STANDARD_IMPORT_ENV_PRESENT_I64_NAME: &str = "GLAGOL_STD_IMPORT_ENV_ALPHA_PRESENT_I64";
const STANDARD_IMPORT_ENV_PRESENT_I64_VALUE: &str = "42000000000";
const STANDARD_IMPORT_ENV_PRESENT_U64_NAME: &str = "GLAGOL_STD_IMPORT_ENV_ALPHA_PRESENT_U64";
const STANDARD_IMPORT_ENV_PRESENT_U64_VALUE: &str = "4294967296";
const STANDARD_IMPORT_ENV_PRESENT_F64_NAME: &str = "GLAGOL_STD_IMPORT_ENV_ALPHA_PRESENT_F64";
const STANDARD_IMPORT_ENV_PRESENT_F64_VALUE: &str = "42.5";
const STANDARD_IMPORT_ENV_PRESENT_BOOL_NAME: &str = "GLAGOL_STD_IMPORT_ENV_ALPHA_PRESENT_BOOL";
const STANDARD_IMPORT_ENV_PRESENT_BOOL_VALUE: &str = "true";
const STANDARD_IMPORT_ENV_INVALID_NAME: &str = "GLAGOL_STD_IMPORT_ENV_ALPHA_INVALID";
const STANDARD_IMPORT_ENV_INVALID_VALUE: &str = "bad";

const STANDARD_RESULT_SOURCE_HELPERS_ALPHA: &[&str] = &[
    "ok_i32",
    "err_i32",
    "is_ok_i32",
    "is_err_i32",
    "unwrap_ok_i32",
    "unwrap_err_i32",
    "unwrap_or_i32",
    "ok_u32",
    "err_u32",
    "is_ok_u32",
    "is_err_u32",
    "unwrap_ok_u32",
    "unwrap_err_u32",
    "unwrap_or_u32",
    "ok_i64",
    "err_i64",
    "is_err_i64",
    "unwrap_err_i64",
    "unwrap_or_i64",
    "ok_u64",
    "err_u64",
    "is_ok_u64",
    "is_err_u64",
    "unwrap_ok_u64",
    "unwrap_err_u64",
    "unwrap_or_u64",
    "ok_string",
    "err_string",
    "is_err_string",
    "unwrap_err_string",
    "unwrap_or_string",
    "ok_f64",
    "err_f64",
    "is_err_f64",
    "unwrap_err_f64",
    "unwrap_or_f64",
    "ok_bool",
    "err_bool",
    "is_ok_bool",
    "is_err_bool",
    "unwrap_ok_bool",
    "unwrap_err_bool",
    "unwrap_or_bool",
];

const STANDARD_RESULT_OPTION_BRIDGE_HELPERS_ALPHA: &[&str] = &[
    "ok_or_none_i32",
    "ok_or_none_u32",
    "ok_or_none_i64",
    "ok_or_none_u64",
    "ok_or_none_string",
    "ok_or_none_f64",
    "ok_or_none_bool",
];

const STANDARD_RESULT_SOURCE_SEARCH_ALPHA: &[&str] = &[
    "is_ok_i32",
    "is_err_i32",
    "unwrap_ok_i32",
    "unwrap_err_i32",
    "unwrap_or_i32",
    "is_ok_u32",
    "is_err_u32",
    "unwrap_ok_u32",
    "unwrap_err_u32",
    "unwrap_or_u32",
    "is_ok_i64",
    "is_err_i64",
    "unwrap_ok_i64",
    "unwrap_err_i64",
    "unwrap_or_i64",
    "is_ok_u64",
    "is_err_u64",
    "unwrap_ok_u64",
    "unwrap_err_u64",
    "unwrap_or_u64",
    "is_ok_string",
    "is_err_string",
    "unwrap_ok_string",
    "unwrap_err_string",
    "unwrap_or_string",
    "is_ok_f64",
    "is_err_f64",
    "unwrap_ok_f64",
    "unwrap_err_f64",
    "unwrap_or_f64",
    "is_ok_bool",
    "is_err_bool",
    "unwrap_ok_bool",
    "unwrap_err_bool",
    "unwrap_or_bool",
];

struct LoweringInspectorCase {
    source: &'static str,
    surface_snapshot: &'static str,
    checked_snapshot: &'static str,
}

#[test]
fn promotion_gate_artifacts_are_aligned() {
    let repo = repo_root();
    let glagol_add = repo.join("examples/add.slo");
    let glagol_array_direct_scalars = repo.join("examples/array-direct-scalars.slo");
    let glagol_array_direct_scalars_value_flow =
        repo.join("examples/array-direct-scalars-value-flow.slo");
    let glagol_array_enum = repo.join("examples/array-enum.slo");
    let glagol_array_struct_elements = repo.join("examples/array-struct-elements.slo");
    let glagol_array_struct_fields = repo.join("examples/array-struct-fields.slo");
    let glagol_array_string = repo.join("examples/array-string.slo");
    let glagol_array_string_value_flow = repo.join("examples/array-string-value-flow.slo");
    let glagol_array = repo.join("examples/array.slo");
    let glagol_array_value_flow = repo.join("examples/array-value-flow.slo");
    let glagol_boolean_logic = repo.join("examples/boolean-logic.slo");
    let glagol_checked_i64_to_i32 = repo.join("examples/checked-i64-to-i32-conversion.slo");
    let glagol_enum_basic = repo.join("examples/enum-basic.slo");
    let glagol_enum_payload_direct_scalars = repo.join("examples/enum-payload-direct-scalars.slo");
    let glagol_enum_payload_structs = repo.join("examples/enum-payload-structs.slo");
    let glagol_enum_payload_i32 = repo.join("examples/enum-payload-i32.slo");
    let glagol_enum_struct_field = repo.join("examples/enum-struct-fields.slo");
    let glagol_host_io = repo.join("examples/host-io.slo");
    let glagol_host_io_result = repo.join("examples/host-io-result.slo");
    let glagol_if = repo.join("examples/if.slo");
    let glagol_integer_bitwise = repo.join("examples/integer-bitwise.slo");
    let glagol_integer_remainder = repo.join("examples/integer-remainder.slo");
    let glagol_integer_to_string = repo.join("examples/integer-to-string.slo");
    let glagol_f64_to_string = repo.join("examples/f64-to-string.slo");
    let glagol_f64_to_i32_result = repo.join("examples/f64-to-i32-result.slo");
    let glagol_f64_to_i64_result = repo.join("examples/f64-to-i64-result.slo");
    let glagol_composite = repo.join("examples/composite-locals.slo");
    let glagol_composite_struct_fields = repo.join("examples/composite-struct-fields.slo");
    let glagol_local = repo.join("examples/local-variables.slo");
    let glagol_numeric_struct_fields = repo.join("examples/numeric-struct-fields.slo");
    let glagol_numeric_widening = repo.join("examples/numeric-widening-conversions.slo");
    let glagol_option_result = repo.join("examples/option-result.slo");
    let glagol_option_result_flow = repo.join("examples/option-result-flow.slo");
    let glagol_option_result_match = repo.join("examples/option-result-match.slo");
    let glagol_option_result_payload = repo.join("examples/option-result-payload.slo");
    let glagol_owned_string_concat = repo.join("examples/owned-string-concat.slo");
    let glagol_print_bool = repo.join("examples/print-bool.slo");
    let glagol_primitive_struct_fields = repo.join("examples/primitive-struct-fields.slo");
    let glagol_random = repo.join("examples/random.slo");
    let glagol_stdin_result = repo.join("examples/stdin-result.slo");
    let glagol_string_parse_i32_result = repo.join("examples/string-parse-i32-result.slo");
    let glagol_string_parse_i64_result = repo.join("examples/string-parse-i64-result.slo");
    let glagol_string_parse_f64_result = repo.join("examples/string-parse-f64-result.slo");
    let glagol_string_parse_bool_result = repo.join("examples/string-parse-bool-result.slo");
    let glagol_result_helpers = repo.join("examples/result-helpers.slo");
    let glagol_result_f64_bool_match = repo.join("examples/result-f64-bool-match.slo");
    let glagol_standard_runtime = repo.join("examples/standard-runtime.slo");
    let glagol_time_sleep = repo.join("examples/time-sleep.slo");
    let glagol_string_print = repo.join("examples/string-print.slo");
    let glagol_string_value_flow = repo.join("examples/string-value-flow.slo");
    let glagol_struct = repo.join("examples/struct.slo");
    let glagol_struct_value_flow = repo.join("examples/struct-value-flow.slo");
    let glagol_unsafe = repo.join("examples/unsafe.slo");
    let glagol_vec_i32 = repo.join("examples/vec-i32.slo");
    let _glagol_vec_f64 = repo.join("examples/vec-f64.slo");
    let _glagol_vec_bool = repo.join("examples/vec-bool.slo");
    let _glagol_vec_string = repo.join("examples/vec-string.slo");
    let glagol_while = repo.join("examples/while.slo");
    let glagol_project_enum_imports = repo.join("examples/projects/enum-imports");
    let glagol_project_std_layout_local_math = repo.join("examples/projects/std-layout-local-math");
    let glagol_project_std_layout_local_num = repo.join("examples/projects/std-layout-local-num");
    let glagol_project_std_layout_local_option =
        repo.join("examples/projects/std-layout-local-option");
    let glagol_project_std_layout_local_process =
        repo.join("examples/projects/std-layout-local-process");
    let glagol_project_std_layout_local_result =
        repo.join("examples/projects/std-layout-local-result");
    let glagol_project_std_layout_local_string =
        repo.join("examples/projects/std-layout-local-string");
    let glagol_project_std_layout_local_time = repo.join("examples/projects/std-layout-local-time");
    let glagol_project_std_layout_local_random =
        repo.join("examples/projects/std-layout-local-random");
    let glagol_project_std_layout_local_env = repo.join("examples/projects/std-layout-local-env");
    let glagol_project_std_layout_local_fs = repo.join("examples/projects/std-layout-local-fs");
    let glagol_project_std_layout_local_net = repo.join("examples/projects/std-layout-local-net");
    let glagol_project_std_layout_local_json = repo.join("examples/projects/std-layout-local-json");
    let glagol_project_std_layout_local_io = repo.join("examples/projects/std-layout-local-io");
    let glagol_project_std_layout_local_cli = repo.join("examples/projects/std-layout-local-cli");
    let glagol_project_std_layout_local_vec_i32 =
        repo.join("examples/projects/std-layout-local-vec_i32");
    let glagol_project_std_layout_local_vec_i64 =
        repo.join("examples/projects/std-layout-local-vec_i64");
    let glagol_project_std_layout_local_vec_f64 =
        repo.join("examples/projects/std-layout-local-vec_f64");
    let glagol_project_std_layout_local_vec_bool =
        repo.join("examples/projects/std-layout-local-vec_bool");
    let glagol_project_std_layout_local_vec_string =
        repo.join("examples/projects/std-layout-local-vec_string");
    let glagol_project_std_import_math = repo.join("examples/projects/std-import-math");
    let glagol_project_std_import_result = repo.join("examples/projects/std-import-result");
    let glagol_project_std_import_option = repo.join("examples/projects/std-import-option");
    let glagol_project_std_import_time = repo.join("examples/projects/std-import-time");
    let glagol_project_std_import_random = repo.join("examples/projects/std-import-random");
    let glagol_project_std_import_env = repo.join("examples/projects/std-import-env");
    let glagol_project_std_import_fs = repo.join("examples/projects/std-import-fs");
    let glagol_project_std_import_net = repo.join("examples/projects/std-import-net");
    let glagol_project_std_import_json = repo.join("examples/projects/std-import-json");
    let glagol_project_std_import_process = repo.join("examples/projects/std-import-process");
    let glagol_project_std_import_string = repo.join("examples/projects/std-import-string");
    let glagol_project_std_import_num = repo.join("examples/projects/std-import-num");
    let glagol_project_std_import_io = repo.join("examples/projects/std-import-io");
    let glagol_project_std_import_cli = repo.join("examples/projects/std-import-cli");
    let glagol_project_std_import_vec_i32 = repo.join("examples/projects/std-import-vec_i32");
    let glagol_project_std_import_vec_i64 = repo.join("examples/projects/std-import-vec_i64");
    let glagol_project_std_import_vec_f64 = repo.join("examples/projects/std-import-vec_f64");
    let glagol_project_std_import_vec_bool = repo.join("examples/projects/std-import-vec_bool");
    let glagol_project_std_import_vec_string = repo.join("examples/projects/std-import-vec_string");
    let glagol_workspace_std_import_option = repo.join("examples/workspaces/std-import-option");
    let glagol_benchmark_math_loop = repo.join("benchmarks/math-loop");
    let glagol_benchmark_branch_loop = repo.join("benchmarks/branch-loop");
    let glagol_benchmark_parse_loop = repo.join("benchmarks/parse-loop");
    let glagol_benchmark_json_quote_loop = repo.join("benchmarks/json-quote-loop");
    let glagol_benchmark_array_index_loop = repo.join("benchmarks/array-index-loop");
    let glagol_benchmark_string_eq_loop = repo.join("benchmarks/string-eq-loop");
    let glagol_benchmark_array_struct_field_loop = repo.join("benchmarks/array-struct-field-loop");
    let glagol_benchmark_enum_struct_payload_loop =
        repo.join("benchmarks/enum-struct-payload-loop");
    let glagol_benchmark_vec_i32_index_loop = repo.join("benchmarks/vec-i32-index-loop");
    let glagol_benchmark_vec_string_eq_loop = repo.join("benchmarks/vec-string-eq-loop");
    let formatter_canonical = repo.join("tests/canonical.fmt");
    let array_direct_scalars_formatter = repo.join("tests/array-direct-scalars.slo");
    let array_direct_scalars_value_flow_formatter =
        repo.join("tests/array-direct-scalars-value-flow.slo");
    let array_enum_formatter = repo.join("tests/array-enum.slo");
    let array_struct_elements_formatter = repo.join("tests/array-struct-elements.slo");
    let array_struct_fields_formatter = repo.join("tests/array-struct-fields.slo");
    let array_string_formatter = repo.join("tests/array-string.slo");
    let array_string_value_flow_formatter = repo.join("tests/array-string-value-flow.slo");
    let array_formatter = repo.join("tests/array.slo");
    let array_value_flow_formatter = repo.join("tests/array-value-flow.slo");
    let boolean_logic_formatter = repo.join("tests/boolean-logic.slo");
    let checked_i64_to_i32_formatter = repo.join("tests/checked-i64-to-i32-conversion.slo");
    let host_io_formatter = repo.join("tests/host-io.slo");
    let host_io_result_formatter = repo.join("tests/host-io-result.slo");
    let if_formatter = repo.join("tests/if.slo");
    let integer_bitwise_formatter = repo.join("tests/integer-bitwise.slo");
    let integer_remainder_formatter = repo.join("tests/integer-remainder.slo");
    let integer_to_string_formatter = repo.join("tests/integer-to-string.slo");
    let f64_to_string_formatter = repo.join("tests/f64-to-string.slo");
    let f64_to_i32_result_formatter = repo.join("tests/f64-to-i32-result.slo");
    let f64_to_i64_result_formatter = repo.join("tests/f64-to-i64-result.slo");
    let composite_formatter = repo.join("tests/composite-locals.slo");
    let composite_struct_fields_formatter = repo.join("tests/composite-struct-fields.slo");
    let local_formatter = repo.join("tests/local-variables.slo");
    let numeric_struct_fields_formatter = repo.join("tests/numeric-struct-fields.slo");
    let numeric_widening_formatter = repo.join("tests/numeric-widening-conversions.slo");
    let option_result_formatter = repo.join("tests/option-result.slo");
    let option_result_flow_formatter = repo.join("tests/option-result-flow.slo");
    let option_result_match_formatter = repo.join("tests/option-result-match.slo");
    let option_result_payload_formatter = repo.join("tests/option-result-payload.slo");
    let owned_string_concat_formatter = repo.join("tests/owned-string-concat.slo");
    let print_bool_formatter = repo.join("tests/print-bool.slo");
    let primitive_struct_fields_formatter = repo.join("tests/primitive-struct-fields.slo");
    let random_formatter = repo.join("tests/random.slo");
    let stdin_result_formatter = repo.join("tests/stdin-result.slo");
    let string_parse_i32_result_formatter = repo.join("tests/string-parse-i32-result.slo");
    let string_parse_i64_result_formatter = repo.join("tests/string-parse-i64-result.slo");
    let string_parse_f64_result_formatter = repo.join("tests/string-parse-f64-result.slo");
    let string_parse_bool_result_formatter = repo.join("tests/string-parse-bool-result.slo");
    let result_helpers_formatter = repo.join("tests/result-helpers.slo");
    let standard_runtime_formatter = repo.join("tests/standard-runtime.slo");
    let time_sleep_formatter = repo.join("tests/time-sleep.slo");
    let string_print_formatter = repo.join("tests/string-print.slo");
    let string_value_flow_formatter = repo.join("tests/string-value-flow.slo");
    let struct_formatter = repo.join("tests/struct.slo");
    let struct_value_flow_formatter = repo.join("tests/struct-value-flow.slo");
    let unsafe_formatter = repo.join("tests/unsafe.slo");
    let vec_i32_formatter = repo.join("tests/vec-i32.slo");
    let while_formatter = repo.join("tests/while.slo");
    let comments_formatter = repo.join("tests/comments.slo");
    let enum_basic_formatter = repo.join("tests/enum-basic.slo");
    let enum_payload_direct_scalars_formatter = repo.join("tests/enum-payload-direct-scalars.slo");
    let enum_payload_structs_formatter = repo.join("tests/enum-payload-structs.slo");
    let enum_payload_i32_formatter = repo.join("tests/enum-payload-i32.slo");
    let enum_struct_field_formatter = repo.join("tests/enum-struct-fields.slo");
    let formatter_stability_v1 = repo.join("tests/formatter-stability-v1.fmt");

    assert_supported_fixtures(&repo);
    assert_glagol_test_fixtures(&repo);
    assert_lowering_inspector_fixture_inventory(&repo);
    assert_same_supported_body(&glagol_add, &formatter_canonical);
    assert_same_supported_body(
        &glagol_array_direct_scalars,
        &array_direct_scalars_formatter,
    );
    assert_same_supported_body(
        &glagol_array_direct_scalars_value_flow,
        &array_direct_scalars_value_flow_formatter,
    );
    assert_same_supported_body(&glagol_array_enum, &array_enum_formatter);
    assert_same_supported_body(
        &glagol_array_struct_elements,
        &array_struct_elements_formatter,
    );
    assert_same_supported_body(&glagol_array_struct_fields, &array_struct_fields_formatter);
    assert_same_supported_body(&glagol_array_string, &array_string_formatter);
    assert_same_supported_body(
        &glagol_array_string_value_flow,
        &array_string_value_flow_formatter,
    );
    assert_same_supported_body(&glagol_array, &array_formatter);
    assert_same_supported_body(&glagol_array_value_flow, &array_value_flow_formatter);
    assert_same_supported_body(&glagol_boolean_logic, &boolean_logic_formatter);
    assert_boolean_logic_tooling_matches_fixture(&glagol_boolean_logic);
    assert_same_supported_body(&glagol_checked_i64_to_i32, &checked_i64_to_i32_formatter);
    assert_same_supported_body(&glagol_enum_basic, &enum_basic_formatter);
    assert_same_supported_body(
        &glagol_enum_payload_direct_scalars,
        &enum_payload_direct_scalars_formatter,
    );
    assert_same_supported_body(
        &glagol_enum_payload_structs,
        &enum_payload_structs_formatter,
    );
    assert_same_supported_body(&glagol_enum_payload_i32, &enum_payload_i32_formatter);
    assert_same_supported_body(&glagol_enum_struct_field, &enum_struct_field_formatter);
    assert_same_supported_body(&glagol_host_io, &host_io_formatter);
    assert_same_supported_body(&glagol_host_io_result, &host_io_result_formatter);
    assert_same_supported_body(&glagol_if, &if_formatter);
    assert_same_supported_body(&glagol_integer_bitwise, &integer_bitwise_formatter);
    assert_integer_bitwise_tooling_matches_fixture(&glagol_integer_bitwise);
    assert_same_supported_body(&glagol_integer_remainder, &integer_remainder_formatter);
    assert_integer_remainder_tooling_matches_fixture(&glagol_integer_remainder);
    assert_same_supported_body(&glagol_integer_to_string, &integer_to_string_formatter);
    assert_same_supported_body(&glagol_f64_to_string, &f64_to_string_formatter);
    assert_same_supported_body(&glagol_f64_to_i32_result, &f64_to_i32_result_formatter);
    assert_same_supported_body(&glagol_f64_to_i64_result, &f64_to_i64_result_formatter);
    assert_same_supported_body(&glagol_composite, &composite_formatter);
    assert_same_supported_body(
        &glagol_composite_struct_fields,
        &composite_struct_fields_formatter,
    );
    assert_same_supported_body(&glagol_local, &local_formatter);
    assert_same_supported_body(
        &glagol_numeric_struct_fields,
        &numeric_struct_fields_formatter,
    );
    assert_same_supported_body(&glagol_numeric_widening, &numeric_widening_formatter);
    assert_same_supported_body(&glagol_option_result, &option_result_formatter);
    assert_same_supported_body(&glagol_option_result_flow, &option_result_flow_formatter);
    assert_same_supported_body(&glagol_option_result_match, &option_result_match_formatter);
    assert_same_supported_body(
        &glagol_option_result_payload,
        &option_result_payload_formatter,
    );
    assert_same_supported_body(&glagol_owned_string_concat, &owned_string_concat_formatter);
    assert_same_supported_body(&glagol_print_bool, &print_bool_formatter);
    assert_same_supported_body(
        &glagol_primitive_struct_fields,
        &primitive_struct_fields_formatter,
    );
    assert_same_supported_body(&glagol_random, &random_formatter);
    assert_same_supported_body(&glagol_stdin_result, &stdin_result_formatter);
    assert_same_supported_body(
        &glagol_string_parse_i32_result,
        &string_parse_i32_result_formatter,
    );
    assert_same_supported_body(
        &glagol_string_parse_i64_result,
        &string_parse_i64_result_formatter,
    );
    assert_same_supported_body(
        &glagol_string_parse_f64_result,
        &string_parse_f64_result_formatter,
    );
    assert_same_supported_body(
        &glagol_string_parse_bool_result,
        &string_parse_bool_result_formatter,
    );
    assert_same_supported_body(&glagol_result_helpers, &result_helpers_formatter);
    assert_same_supported_body(&glagol_standard_runtime, &standard_runtime_formatter);
    assert_same_supported_body(&glagol_time_sleep, &time_sleep_formatter);
    assert_same_supported_body(&glagol_string_print, &string_print_formatter);
    assert_same_supported_body(&glagol_string_value_flow, &string_value_flow_formatter);
    assert_same_supported_body(&glagol_struct, &struct_formatter);
    assert_same_supported_body(&glagol_struct_value_flow, &struct_value_flow_formatter);
    assert_same_supported_body(&glagol_unsafe, &unsafe_formatter);
    assert_same_supported_body(&glagol_vec_i32, &vec_i32_formatter);
    assert_same_supported_body(&glagol_while, &while_formatter);
    assert_formatter_fixture_contract(&formatter_canonical);

    assert_compiler_output_matches_supported_add_shape(&repo, &glagol_add);
    assert_tree_printer_matches_fixture(&repo, &glagol_add);
    assert_formatter_matches_fixture(&array_direct_scalars_formatter);
    assert_formatter_matches_fixture(&array_direct_scalars_value_flow_formatter);
    assert_formatter_matches_fixture(&array_enum_formatter);
    assert_formatter_matches_fixture(&array_struct_elements_formatter);
    assert_formatter_matches_fixture(&array_struct_fields_formatter);
    assert_formatter_matches_fixture(&array_string_formatter);
    assert_formatter_matches_fixture(&array_string_value_flow_formatter);
    assert_formatter_matches_fixture(&formatter_canonical);
    assert_formatter_matches_fixture(&boolean_logic_formatter);
    assert_formatter_matches_fixture(&comments_formatter);
    assert_formatter_matches_fixture(&enum_basic_formatter);
    assert_formatter_matches_fixture(&enum_payload_direct_scalars_formatter);
    assert_formatter_matches_fixture(&enum_payload_structs_formatter);
    assert_formatter_matches_fixture(&enum_payload_i32_formatter);
    assert_formatter_matches_fixture(&enum_struct_field_formatter);
    assert_formatter_matches_fixture(&formatter_stability_v1);
    assert_formatter_matches_fixture(&checked_i64_to_i32_formatter);
    assert_formatter_matches_fixture(&host_io_formatter);
    assert_formatter_matches_fixture(&integer_bitwise_formatter);
    assert_formatter_matches_fixture(&integer_remainder_formatter);
    assert_formatter_matches_fixture(&integer_to_string_formatter);
    assert_formatter_matches_fixture(&f64_to_string_formatter);
    assert_formatter_matches_fixture(&f64_to_i32_result_formatter);
    assert_formatter_matches_fixture(&f64_to_i64_result_formatter);
    assert_formatter_matches_fixture(&owned_string_concat_formatter);
    assert_formatter_matches_fixture(&print_bool_formatter);
    assert_formatter_matches_fixture(&primitive_struct_fields_formatter);
    assert_formatter_matches_fixture(&random_formatter);
    assert_formatter_matches_fixture(&stdin_result_formatter);
    assert_formatter_matches_fixture(&string_parse_i32_result_formatter);
    assert_formatter_matches_fixture(&string_parse_i64_result_formatter);
    assert_formatter_matches_fixture(&string_parse_f64_result_formatter);
    assert_formatter_matches_fixture(&string_parse_bool_result_formatter);
    assert_formatter_matches_fixture(&numeric_struct_fields_formatter);
    assert_formatter_matches_fixture(&numeric_widening_formatter);
    assert_formatter_matches_fixture(&result_helpers_formatter);
    assert_formatter_matches_fixture(&standard_runtime_formatter);
    assert_formatter_matches_fixture(&time_sleep_formatter);
    assert_formatter_matches_fixture(&string_print_formatter);
    assert_formatter_matches_fixture(&string_value_flow_formatter);
    assert_formatter_matches_fixture(&vec_i32_formatter);
    assert_lowering_inspector_matrix_matches_fixtures(&repo);
    assert_lowering_inspector_matches_fixture(
        &repo,
        &glagol_add,
        "--inspect-lowering=surface",
        "add.surface.lower",
    );
    assert_lowering_inspector_matches_fixture(
        &repo,
        &glagol_add,
        "--inspect-lowering=checked",
        "add.checked.lower",
    );
    assert_top_level_test_tooling_matches_fixtures(&repo);
    assert_array_direct_scalars_tooling_matches_fixtures(
        &glagol_array_direct_scalars,
        &array_direct_scalars_formatter,
    );
    assert_array_direct_scalars_value_flow_tooling_matches_fixtures(
        &glagol_array_direct_scalars_value_flow,
        &array_direct_scalars_value_flow_formatter,
    );
    assert_array_string_tooling_matches_fixtures(&glagol_array_string, &array_string_formatter);
    assert_array_string_value_flow_tooling_matches_fixtures(
        &glagol_array_string_value_flow,
        &array_string_value_flow_formatter,
    );
    assert_array_tooling_matches_fixtures(&glagol_array, &array_formatter);
    assert_array_value_flow_tooling_matches_fixtures(
        &glagol_array_value_flow,
        &array_value_flow_formatter,
    );
    assert_if_tooling_matches_fixtures(&glagol_if, &if_formatter);
    assert_local_variable_tooling_matches_fixtures(&glagol_local, &local_formatter);
    assert_option_result_tooling_matches_fixtures(&glagol_option_result, &option_result_formatter);
    assert_option_result_flow_tooling_matches_fixtures(
        &glagol_option_result_flow,
        &option_result_flow_formatter,
    );
    assert_option_result_match_tooling_matches_fixtures(
        &glagol_option_result_match,
        &option_result_match_formatter,
    );
    assert_option_result_payload_tooling_matches_fixtures(
        &glagol_option_result_payload,
        &option_result_payload_formatter,
    );
    assert_enum_struct_field_tooling_matches_fixtures(
        &glagol_enum_struct_field,
        &enum_struct_field_formatter,
    );
    assert_primitive_struct_field_tooling_matches_fixtures(
        &glagol_primitive_struct_fields,
        &primitive_struct_fields_formatter,
    );
    assert_numeric_struct_field_tooling_matches_fixtures(
        &glagol_numeric_struct_fields,
        &numeric_struct_fields_formatter,
    );
    assert_owned_string_concat_tooling_matches_fixtures(
        &glagol_owned_string_concat,
        &owned_string_concat_formatter,
    );
    assert_print_bool_tooling_matches_fixtures(&glagol_print_bool, &print_bool_formatter);
    assert_random_tooling_matches_fixtures(&glagol_random, &random_formatter);
    assert_stdin_result_tooling_matches_fixtures(&glagol_stdin_result, &stdin_result_formatter);
    assert_string_parse_i32_result_tooling_matches_fixtures(
        &glagol_string_parse_i32_result,
        &string_parse_i32_result_formatter,
    );
    assert_string_parse_i64_result_tooling_matches_fixtures(
        &glagol_string_parse_i64_result,
        &string_parse_i64_result_formatter,
    );
    assert_string_parse_f64_result_tooling_matches_fixtures(
        &glagol_string_parse_f64_result,
        &string_parse_f64_result_formatter,
    );
    assert_string_parse_bool_result_tooling_matches_fixtures(
        &glagol_string_parse_bool_result,
        &string_parse_bool_result_formatter,
    );
    assert_result_f64_bool_source_flow_matches_fixture(&glagol_result_f64_bool_match);
    assert_f64_to_string_tooling_matches_fixtures(&glagol_f64_to_string, &f64_to_string_formatter);
    assert_f64_to_i32_result_tooling_matches_fixtures(
        &glagol_f64_to_i32_result,
        &f64_to_i32_result_formatter,
    );
    assert_f64_to_i64_result_tooling_matches_fixtures(
        &glagol_f64_to_i64_result,
        &f64_to_i64_result_formatter,
    );
    assert_result_helpers_tooling_matches_fixtures(
        &glagol_result_helpers,
        &result_helpers_formatter,
    );
    assert_standard_runtime_tooling_matches_fixtures(
        &glagol_standard_runtime,
        &standard_runtime_formatter,
    );
    assert_time_sleep_tooling_matches_fixtures(&glagol_time_sleep, &time_sleep_formatter);
    assert_string_print_tooling_matches_fixtures(&glagol_string_print, &string_print_formatter);
    assert_string_value_flow_tooling_matches_fixtures(
        &glagol_string_value_flow,
        &string_value_flow_formatter,
    );
    assert_struct_tooling_matches_fixtures(&glagol_struct, &struct_formatter);
    assert_struct_value_flow_tooling_matches_fixtures(
        &glagol_struct_value_flow,
        &struct_value_flow_formatter,
    );
    assert_unsafe_tooling_matches_fixtures(&repo, &glagol_unsafe, &unsafe_formatter);
    assert_vec_i32_tooling_matches_fixtures(&glagol_vec_i32, &vec_i32_formatter);
    assert_while_tooling_matches_fixtures(&glagol_while, &while_formatter);
    assert_project_enum_imports_tooling_matches_fixture(&glagol_project_enum_imports);
    assert_project_std_layout_local_math_tooling_matches_fixture(
        &glagol_project_std_layout_local_math,
    );
    assert_project_std_import_math_tooling_matches_fixture(&glagol_project_std_import_math);
    assert_project_std_import_result_tooling_matches_fixture(&glagol_project_std_import_result);
    assert_project_std_import_option_tooling_matches_fixture(&glagol_project_std_import_option);
    assert_project_std_import_time_tooling_matches_fixture(&glagol_project_std_import_time);
    assert_project_std_import_random_tooling_matches_fixture(&glagol_project_std_import_random);
    assert_project_std_import_env_tooling_matches_fixture(&glagol_project_std_import_env);
    assert_project_std_import_fs_tooling_matches_fixture(&glagol_project_std_import_fs);
    assert_project_std_import_net_tooling_matches_fixture(&glagol_project_std_import_net);
    assert_project_std_import_json_tooling_matches_fixture(&glagol_project_std_import_json);
    assert_project_std_import_process_tooling_matches_fixture(&glagol_project_std_import_process);
    assert_project_std_import_string_tooling_matches_fixture(&glagol_project_std_import_string);
    assert_project_std_import_num_tooling_matches_fixture(&glagol_project_std_import_num);
    assert_project_std_import_io_tooling_matches_fixture(&glagol_project_std_import_io);
    assert_project_std_import_cli_tooling_matches_fixture(&glagol_project_std_import_cli);
    assert_project_std_import_vec_i32_tooling_matches_fixture(&glagol_project_std_import_vec_i32);
    assert_project_std_import_vec_i64_tooling_matches_fixture(&glagol_project_std_import_vec_i64);
    assert_project_std_import_vec_f64_tooling_matches_fixture(&glagol_project_std_import_vec_f64);
    assert_project_std_import_vec_bool_tooling_matches_fixture(&glagol_project_std_import_vec_bool);
    assert_project_std_import_vec_string_tooling_matches_fixture(
        &glagol_project_std_import_vec_string,
    );
    assert_workspace_std_import_option_tooling_matches_fixture(&glagol_workspace_std_import_option);
    assert_project_std_layout_local_num_tooling_matches_fixture(
        &glagol_project_std_layout_local_num,
    );
    assert_project_std_layout_local_option_tooling_matches_fixture(
        &glagol_project_std_layout_local_option,
    );
    assert_project_std_layout_local_process_tooling_matches_fixture(
        &glagol_project_std_layout_local_process,
    );
    assert_project_std_layout_local_result_tooling_matches_fixture(
        &glagol_project_std_layout_local_result,
    );
    assert_project_std_layout_local_string_tooling_matches_fixture(
        &glagol_project_std_layout_local_string,
    );
    assert_project_std_layout_local_time_tooling_matches_fixture(
        &glagol_project_std_layout_local_time,
    );
    assert_project_std_layout_local_random_tooling_matches_fixture(
        &glagol_project_std_layout_local_random,
    );
    assert_project_std_layout_local_env_tooling_matches_fixture(
        &glagol_project_std_layout_local_env,
    );
    assert_project_std_layout_local_fs_tooling_matches_fixture(&glagol_project_std_layout_local_fs);
    assert_project_std_layout_local_net_tooling_matches_fixture(
        &glagol_project_std_layout_local_net,
    );
    assert_project_std_layout_local_json_tooling_matches_fixture(
        &glagol_project_std_layout_local_json,
    );
    assert_project_std_layout_local_io_tooling_matches_fixture(&glagol_project_std_layout_local_io);
    assert_project_std_layout_local_cli_tooling_matches_fixture(
        &glagol_project_std_layout_local_cli,
    );
    assert_project_std_layout_local_vec_i32_tooling_matches_fixture(
        &glagol_project_std_layout_local_vec_i32,
    );
    assert_project_std_layout_local_vec_i64_tooling_matches_fixture(
        &glagol_project_std_layout_local_vec_i64,
    );
    assert_project_std_layout_local_vec_f64_tooling_matches_fixture(
        &glagol_project_std_layout_local_vec_f64,
    );
    assert_project_std_layout_local_vec_bool_tooling_matches_fixture(
        &glagol_project_std_layout_local_vec_bool,
    );
    assert_project_std_layout_local_vec_string_tooling_matches_fixture(
        &glagol_project_std_layout_local_vec_string,
    );
    assert_math_loop_benchmark_scaffold_is_promotable(&glagol_benchmark_math_loop);
    assert_named_benchmark_scaffold_is_promotable(
        &glagol_benchmark_branch_loop,
        "branch-loop",
        "branch_loop",
    );
    assert_named_benchmark_scaffold_is_promotable(
        &glagol_benchmark_parse_loop,
        "parse-loop",
        "parse_loop",
    );
    assert_named_benchmark_scaffold_is_promotable(
        &glagol_benchmark_json_quote_loop,
        "json-quote-loop",
        "json_quote_loop",
    );
    assert_named_benchmark_scaffold_is_promotable(
        &glagol_benchmark_array_index_loop,
        "array-index-loop",
        "array_index_loop",
    );
    assert_named_benchmark_scaffold_is_promotable(
        &glagol_benchmark_string_eq_loop,
        "string-eq-loop",
        "string_eq_loop",
    );
    assert_named_benchmark_scaffold_is_promotable(
        &glagol_benchmark_array_struct_field_loop,
        "array-struct-field-loop",
        "array_struct_field_loop",
    );
    assert_named_benchmark_scaffold_is_promotable(
        &glagol_benchmark_enum_struct_payload_loop,
        "enum-struct-payload-loop",
        "enum_struct_payload_loop",
    );
    assert_named_benchmark_scaffold_is_promotable(
        &glagol_benchmark_vec_i32_index_loop,
        "vec-i32-index-loop",
        "vec_i32_index_loop",
    );
    assert_named_benchmark_scaffold_is_promotable(
        &glagol_benchmark_vec_string_eq_loop,
        "vec-string-eq-loop",
        "vec_string_eq_loop",
    );
    assert_installed_standard_library_discovery_is_promotable(&repo);
    assert_diagnostic_snapshots_are_promotable(&repo);
}

#[test]
#[ignore = "requires a Slovo monorepo checkout; default glagol tests stay standalone"]
fn hermeticum_slovo_fixture_alignment_is_preserved() {
    let repo = repo_root();
    let slovo_supported_add = repo.join("docs/language/examples/supported/add.slo");
    let slovo_supported_array_direct_scalars =
        repo.join("docs/language/examples/supported/array-direct-scalars.slo");
    let slovo_supported_array_direct_scalars_value_flow =
        repo.join("docs/language/examples/supported/array-direct-scalars-value-flow.slo");
    let slovo_supported_array_enum = repo.join("docs/language/examples/supported/array-enum.slo");
    let slovo_supported_array_string =
        repo.join("docs/language/examples/supported/array-string.slo");
    let slovo_supported_array_string_value_flow =
        repo.join("docs/language/examples/supported/array-string-value-flow.slo");
    let slovo_supported_array_struct_elements =
        repo.join("docs/language/examples/supported/array-struct-elements.slo");
    let slovo_supported_array = repo.join("docs/language/examples/supported/array.slo");
    let slovo_supported_array_value_flow =
        repo.join("docs/language/examples/supported/array-value-flow.slo");
    let slovo_supported_boolean_logic =
        repo.join("docs/language/examples/supported/boolean-logic.slo");
    let slovo_supported_checked_i64_to_i32 =
        repo.join("docs/language/examples/supported/checked-i64-to-i32-conversion.slo");
    let slovo_supported_enum_basic = repo.join("docs/language/examples/supported/enum-basic.slo");
    let slovo_supported_enum_payload_direct_scalars =
        repo.join("docs/language/examples/supported/enum-payload-direct-scalars.slo");
    let slovo_supported_enum_payload_structs =
        repo.join("docs/language/examples/supported/enum-payload-structs.slo");
    let slovo_supported_enum_payload_i32 =
        repo.join("docs/language/examples/supported/enum-payload-i32.slo");
    let slovo_supported_enum_struct_fields =
        repo.join("docs/language/examples/supported/enum-struct-fields.slo");
    let slovo_supported_host_io = repo.join("docs/language/examples/supported/host-io.slo");
    let slovo_supported_host_io_result =
        repo.join("docs/language/examples/supported/host-io-result.slo");
    let slovo_supported_if = repo.join("docs/language/examples/supported/if.slo");
    let slovo_supported_integer_bitwise =
        repo.join("docs/language/examples/supported/integer-bitwise.slo");
    let slovo_supported_integer_remainder =
        repo.join("docs/language/examples/supported/integer-remainder.slo");
    let slovo_supported_integer_to_string =
        repo.join("docs/language/examples/supported/integer-to-string.slo");
    let slovo_supported_f64_to_string =
        repo.join("docs/language/examples/supported/f64-to-string.slo");
    let slovo_supported_f64_to_i32_result =
        repo.join("docs/language/examples/supported/f64-to-i32-result.slo");
    let slovo_supported_f64_to_i64_result =
        repo.join("docs/language/examples/supported/f64-to-i64-result.slo");
    let slovo_supported_composite =
        repo.join("docs/language/examples/supported/composite-locals.slo");
    let slovo_supported_composite_struct_fields =
        repo.join("docs/language/examples/supported/composite-struct-fields.slo");
    let slovo_supported_test = repo.join("docs/language/examples/supported/top-level-test.slo");
    let slovo_supported_local = repo.join("docs/language/examples/supported/local-variables.slo");
    let slovo_supported_numeric_struct_fields =
        repo.join("docs/language/examples/supported/numeric-struct-fields.slo");
    let slovo_supported_numeric_widening =
        repo.join("docs/language/examples/supported/numeric-widening-conversions.slo");
    let slovo_supported_option_result =
        repo.join("docs/language/examples/supported/option-result.slo");
    let slovo_supported_option_result_flow =
        repo.join("docs/language/examples/supported/option-result-flow.slo");
    let slovo_supported_option_result_match =
        repo.join("docs/language/examples/supported/option-result-match.slo");
    let slovo_supported_option_result_payload =
        repo.join("docs/language/examples/supported/option-result-payload.slo");
    let slovo_supported_owned_string_concat =
        repo.join("docs/language/examples/supported/owned-string-concat.slo");
    let slovo_supported_print_bool = repo.join("docs/language/examples/supported/print-bool.slo");
    let slovo_supported_primitive_struct_fields =
        repo.join("docs/language/examples/supported/primitive-struct-fields.slo");
    let slovo_supported_random = repo.join("docs/language/examples/supported/random.slo");
    let slovo_supported_stdin_result =
        repo.join("docs/language/examples/supported/stdin-result.slo");
    let slovo_supported_string_parse_i32_result =
        repo.join("docs/language/examples/supported/string-parse-i32-result.slo");
    let slovo_supported_string_parse_i64_result =
        repo.join("docs/language/examples/supported/string-parse-i64-result.slo");
    let slovo_supported_string_parse_bool_result =
        repo.join("docs/language/examples/supported/string-parse-bool-result.slo");
    let slovo_supported_result_helpers =
        repo.join("docs/language/examples/supported/result-helpers.slo");
    let slovo_supported_result_f64_bool_match =
        repo.join("docs/language/examples/supported/result-f64-bool-match.slo");
    let slovo_supported_standard_runtime =
        repo.join("docs/language/examples/supported/standard-runtime.slo");
    let slovo_supported_time_sleep = repo.join("docs/language/examples/supported/time-sleep.slo");
    let slovo_supported_string_print =
        repo.join("docs/language/examples/supported/string-print.slo");
    let slovo_supported_string_value_flow =
        repo.join("docs/language/examples/supported/string-value-flow.slo");
    let slovo_supported_struct = repo.join("docs/language/examples/supported/struct.slo");
    let slovo_supported_struct_value_flow =
        repo.join("docs/language/examples/supported/struct-value-flow.slo");
    let slovo_supported_unsafe = repo.join("docs/language/examples/supported/unsafe.slo");
    let slovo_supported_vec_i32 = repo.join("docs/language/examples/supported/vec-i32.slo");
    let slovo_supported_vec_f64 = repo.join("docs/language/examples/supported/vec-f64.slo");
    let slovo_supported_vec_bool = repo.join("docs/language/examples/supported/vec-bool.slo");
    let slovo_supported_vec_string = repo.join("docs/language/examples/supported/vec-string.slo");
    let slovo_supported_while = repo.join("docs/language/examples/supported/while.slo");
    let slovo_project_enum_imports_manifest =
        repo.join("docs/language/examples/projects/enum-imports/slovo.toml");
    let slovo_project_enum_imports_readings =
        repo.join("docs/language/examples/projects/enum-imports/src/readings.slo");
    let slovo_project_enum_imports_main =
        repo.join("docs/language/examples/projects/enum-imports/src/main.slo");
    let slovo_project_std_import_time_manifest =
        repo.join("docs/language/examples/projects/std-import-time/slovo.toml");
    let slovo_project_std_import_time_main =
        repo.join("docs/language/examples/projects/std-import-time/src/main.slo");
    let slovo_project_std_import_random_manifest =
        repo.join("docs/language/examples/projects/std-import-random/slovo.toml");
    let slovo_project_std_import_random_main =
        repo.join("docs/language/examples/projects/std-import-random/src/main.slo");
    let slovo_project_std_import_env_manifest =
        repo.join("docs/language/examples/projects/std-import-env/slovo.toml");
    let slovo_project_std_import_env_main =
        repo.join("docs/language/examples/projects/std-import-env/src/main.slo");
    let slovo_project_std_import_fs_manifest =
        repo.join("docs/language/examples/projects/std-import-fs/slovo.toml");
    let slovo_project_std_import_fs_main =
        repo.join("docs/language/examples/projects/std-import-fs/src/main.slo");
    let slovo_project_std_import_process_manifest =
        repo.join("docs/language/examples/projects/std-import-process/slovo.toml");
    let slovo_project_std_import_process_main =
        repo.join("docs/language/examples/projects/std-import-process/src/main.slo");
    let slovo_project_std_import_string_manifest =
        repo.join("docs/language/examples/projects/std-import-string/slovo.toml");
    let slovo_project_std_import_string_main =
        repo.join("docs/language/examples/projects/std-import-string/src/main.slo");
    let slovo_project_std_import_num_manifest =
        repo.join("docs/language/examples/projects/std-import-num/slovo.toml");
    let slovo_project_std_import_num_main =
        repo.join("docs/language/examples/projects/std-import-num/src/main.slo");
    let slovo_project_std_import_io_manifest =
        repo.join("docs/language/examples/projects/std-import-io/slovo.toml");
    let slovo_project_std_import_io_main =
        repo.join("docs/language/examples/projects/std-import-io/src/main.slo");
    let slovo_project_std_import_cli_manifest =
        repo.join("docs/language/examples/projects/std-import-cli/slovo.toml");
    let slovo_project_std_import_cli_main =
        repo.join("docs/language/examples/projects/std-import-cli/src/main.slo");
    let slovo_project_std_import_vec_i32_manifest =
        repo.join("docs/language/examples/projects/std-import-vec_i32/slovo.toml");
    let slovo_project_std_import_vec_i32_main =
        repo.join("docs/language/examples/projects/std-import-vec_i32/src/main.slo");
    let slovo_project_std_import_vec_f64_manifest =
        repo.join("docs/language/examples/projects/std-import-vec_f64/slovo.toml");
    let slovo_project_std_import_vec_f64_main =
        repo.join("docs/language/examples/projects/std-import-vec_f64/src/main.slo");
    let slovo_project_std_import_vec_bool_manifest =
        repo.join("docs/language/examples/projects/std-import-vec_bool/slovo.toml");
    let slovo_project_std_import_vec_bool_main =
        repo.join("docs/language/examples/projects/std-import-vec_bool/src/main.slo");
    let slovo_formatter_canonical = repo.join("docs/language/examples/formatter/canonical.slo");
    let slovo_formatter_array_direct_scalars =
        repo.join("docs/language/examples/formatter/array-direct-scalars.slo");
    let slovo_formatter_array_direct_scalars_value_flow =
        repo.join("docs/language/examples/formatter/array-direct-scalars-value-flow.slo");
    let slovo_formatter_array_enum = repo.join("docs/language/examples/formatter/array-enum.slo");
    let slovo_formatter_array_string =
        repo.join("docs/language/examples/formatter/array-string.slo");
    let slovo_formatter_array_string_value_flow =
        repo.join("docs/language/examples/formatter/array-string-value-flow.slo");
    let slovo_formatter_array_struct_elements =
        repo.join("docs/language/examples/formatter/array-struct-elements.slo");
    let slovo_formatter_array = repo.join("docs/language/examples/formatter/array.slo");
    let slovo_formatter_array_value_flow =
        repo.join("docs/language/examples/formatter/array-value-flow.slo");
    let slovo_formatter_boolean_logic =
        repo.join("docs/language/examples/formatter/boolean-logic.slo");
    let slovo_formatter_checked_i64_to_i32 =
        repo.join("docs/language/examples/formatter/checked-i64-to-i32-conversion.slo");
    let slovo_formatter_comments = repo.join("docs/language/examples/formatter/comments.slo");
    let slovo_formatter_enum_payload_direct_scalars =
        repo.join("docs/language/examples/formatter/enum-payload-direct-scalars.slo");
    let slovo_formatter_enum_payload_structs =
        repo.join("docs/language/examples/formatter/enum-payload-structs.slo");
    let slovo_formatter_enum_payload_i32 =
        repo.join("docs/language/examples/formatter/enum-payload-i32.slo");
    let slovo_formatter_enum_struct_fields =
        repo.join("docs/language/examples/formatter/enum-struct-fields.slo");
    let slovo_formatter_host_io = repo.join("docs/language/examples/formatter/host-io.slo");
    let slovo_formatter_host_io_result =
        repo.join("docs/language/examples/formatter/host-io-result.slo");
    let slovo_formatter_if = repo.join("docs/language/examples/formatter/if.slo");
    let slovo_formatter_integer_bitwise =
        repo.join("docs/language/examples/formatter/integer-bitwise.slo");
    let slovo_formatter_integer_remainder =
        repo.join("docs/language/examples/formatter/integer-remainder.slo");
    let slovo_formatter_integer_to_string =
        repo.join("docs/language/examples/formatter/integer-to-string.slo");
    let slovo_formatter_f64_to_string =
        repo.join("docs/language/examples/formatter/f64-to-string.slo");
    let slovo_formatter_f64_to_i32_result =
        repo.join("docs/language/examples/formatter/f64-to-i32-result.slo");
    let slovo_formatter_f64_to_i64_result =
        repo.join("docs/language/examples/formatter/f64-to-i64-result.slo");
    let slovo_formatter_composite =
        repo.join("docs/language/examples/formatter/composite-locals.slo");
    let slovo_formatter_composite_struct_fields =
        repo.join("docs/language/examples/formatter/composite-struct-fields.slo");
    let slovo_formatter_test = repo.join("docs/language/examples/formatter/top-level-test.slo");
    let slovo_formatter_local = repo.join("docs/language/examples/formatter/local-variables.slo");
    let slovo_formatter_numeric_struct_fields =
        repo.join("docs/language/examples/formatter/numeric-struct-fields.slo");
    let slovo_formatter_numeric_widening =
        repo.join("docs/language/examples/formatter/numeric-widening-conversions.slo");
    let slovo_formatter_option_result =
        repo.join("docs/language/examples/formatter/option-result.slo");
    let slovo_formatter_option_result_flow =
        repo.join("docs/language/examples/formatter/option-result-flow.slo");
    let slovo_formatter_option_result_match =
        repo.join("docs/language/examples/formatter/option-result-match.slo");
    let slovo_formatter_option_result_payload =
        repo.join("docs/language/examples/formatter/option-result-payload.slo");
    let slovo_formatter_owned_string_concat =
        repo.join("docs/language/examples/formatter/owned-string-concat.slo");
    let slovo_formatter_print_bool = repo.join("docs/language/examples/formatter/print-bool.slo");
    let slovo_formatter_primitive_struct_fields =
        repo.join("docs/language/examples/formatter/primitive-struct-fields.slo");
    let slovo_formatter_random = repo.join("docs/language/examples/formatter/random.slo");
    let slovo_formatter_stdin_result =
        repo.join("docs/language/examples/formatter/stdin-result.slo");
    let slovo_formatter_string_parse_i32_result =
        repo.join("docs/language/examples/formatter/string-parse-i32-result.slo");
    let slovo_formatter_string_parse_i64_result =
        repo.join("docs/language/examples/formatter/string-parse-i64-result.slo");
    let slovo_formatter_string_parse_bool_result =
        repo.join("docs/language/examples/formatter/string-parse-bool-result.slo");
    let slovo_formatter_result_helpers =
        repo.join("docs/language/examples/formatter/result-helpers.slo");
    let slovo_formatter_standard_runtime =
        repo.join("docs/language/examples/formatter/standard-runtime.slo");
    let slovo_formatter_time_sleep = repo.join("docs/language/examples/formatter/time-sleep.slo");
    let slovo_formatter_string_print =
        repo.join("docs/language/examples/formatter/string-print.slo");
    let slovo_formatter_string_value_flow =
        repo.join("docs/language/examples/formatter/string-value-flow.slo");
    let slovo_formatter_struct = repo.join("docs/language/examples/formatter/struct.slo");
    let slovo_formatter_struct_value_flow =
        repo.join("docs/language/examples/formatter/struct-value-flow.slo");
    let slovo_formatter_unsafe = repo.join("docs/language/examples/formatter/unsafe.slo");
    let slovo_formatter_vec_i32 = repo.join("docs/language/examples/formatter/vec-i32.slo");
    let slovo_formatter_vec_f64 = repo.join("docs/language/examples/formatter/vec-f64.slo");
    let slovo_formatter_vec_bool = repo.join("docs/language/examples/formatter/vec-bool.slo");
    let slovo_formatter_while = repo.join("docs/language/examples/formatter/while.slo");
    let glagol_add = repo.join("examples/add.slo");
    let glagol_array_direct_scalars = repo.join("examples/array-direct-scalars.slo");
    let glagol_array_direct_scalars_value_flow =
        repo.join("examples/array-direct-scalars-value-flow.slo");
    let glagol_array_enum = repo.join("examples/array-enum.slo");
    let glagol_array_string = repo.join("examples/array-string.slo");
    let glagol_array_string_value_flow = repo.join("examples/array-string-value-flow.slo");
    let glagol_array_struct_elements = repo.join("examples/array-struct-elements.slo");
    let glagol_array = repo.join("examples/array.slo");
    let glagol_array_value_flow = repo.join("examples/array-value-flow.slo");
    let glagol_boolean_logic = repo.join("examples/boolean-logic.slo");
    let glagol_checked_i64_to_i32 = repo.join("examples/checked-i64-to-i32-conversion.slo");
    let glagol_enum_basic = repo.join("examples/enum-basic.slo");
    let glagol_enum_payload_direct_scalars = repo.join("examples/enum-payload-direct-scalars.slo");
    let glagol_enum_payload_structs = repo.join("examples/enum-payload-structs.slo");
    let glagol_enum_payload_i32 = repo.join("examples/enum-payload-i32.slo");
    let glagol_enum_struct_fields = repo.join("examples/enum-struct-fields.slo");
    let glagol_host_io = repo.join("examples/host-io.slo");
    let glagol_host_io_result = repo.join("examples/host-io-result.slo");
    let glagol_if = repo.join("examples/if.slo");
    let glagol_integer_bitwise = repo.join("examples/integer-bitwise.slo");
    let glagol_integer_remainder = repo.join("examples/integer-remainder.slo");
    let glagol_integer_to_string = repo.join("examples/integer-to-string.slo");
    let glagol_f64_to_string = repo.join("examples/f64-to-string.slo");
    let glagol_f64_to_i32_result = repo.join("examples/f64-to-i32-result.slo");
    let glagol_f64_to_i64_result = repo.join("examples/f64-to-i64-result.slo");
    let glagol_composite = repo.join("examples/composite-locals.slo");
    let glagol_composite_struct_fields = repo.join("examples/composite-struct-fields.slo");
    let glagol_local = repo.join("examples/local-variables.slo");
    let glagol_numeric_struct_fields = repo.join("examples/numeric-struct-fields.slo");
    let glagol_numeric_widening = repo.join("examples/numeric-widening-conversions.slo");
    let glagol_option_result = repo.join("examples/option-result.slo");
    let glagol_option_result_flow = repo.join("examples/option-result-flow.slo");
    let glagol_option_result_match = repo.join("examples/option-result-match.slo");
    let glagol_option_result_payload = repo.join("examples/option-result-payload.slo");
    let glagol_owned_string_concat = repo.join("examples/owned-string-concat.slo");
    let glagol_print_bool = repo.join("examples/print-bool.slo");
    let glagol_primitive_struct_fields = repo.join("examples/primitive-struct-fields.slo");
    let glagol_random = repo.join("examples/random.slo");
    let glagol_stdin_result = repo.join("examples/stdin-result.slo");
    let glagol_string_parse_i32_result = repo.join("examples/string-parse-i32-result.slo");
    let glagol_string_parse_i64_result = repo.join("examples/string-parse-i64-result.slo");
    let glagol_string_parse_bool_result = repo.join("examples/string-parse-bool-result.slo");
    let glagol_result_helpers = repo.join("examples/result-helpers.slo");
    let glagol_result_f64_bool_match = repo.join("examples/result-f64-bool-match.slo");
    let glagol_standard_runtime = repo.join("examples/standard-runtime.slo");
    let glagol_time_sleep = repo.join("examples/time-sleep.slo");
    let glagol_string_print = repo.join("examples/string-print.slo");
    let glagol_string_value_flow = repo.join("examples/string-value-flow.slo");
    let glagol_struct = repo.join("examples/struct.slo");
    let glagol_struct_value_flow = repo.join("examples/struct-value-flow.slo");
    let glagol_unsafe = repo.join("examples/unsafe.slo");
    let glagol_vec_i32 = repo.join("examples/vec-i32.slo");
    let glagol_vec_f64 = repo.join("examples/vec-f64.slo");
    let glagol_vec_bool = repo.join("examples/vec-bool.slo");
    let glagol_vec_string = repo.join("examples/vec-string.slo");
    let glagol_while = repo.join("examples/while.slo");
    let glagol_project_enum_imports_manifest =
        repo.join("examples/projects/enum-imports/slovo.toml");
    let glagol_project_enum_imports_readings =
        repo.join("examples/projects/enum-imports/src/readings.slo");
    let glagol_project_enum_imports_main = repo.join("examples/projects/enum-imports/src/main.slo");
    let glagol_project_std_layout_local_math_manifest =
        repo.join("examples/projects/std-layout-local-math/slovo.toml");
    let glagol_project_std_layout_local_math_math =
        repo.join("examples/projects/std-layout-local-math/src/math.slo");
    let glagol_project_std_layout_local_math_main =
        repo.join("examples/projects/std-layout-local-math/src/main.slo");
    let glagol_project_std_layout_local_num_manifest =
        repo.join("examples/projects/std-layout-local-num/slovo.toml");
    let glagol_project_std_layout_local_num_num =
        repo.join("examples/projects/std-layout-local-num/src/num.slo");
    let glagol_project_std_layout_local_num_main =
        repo.join("examples/projects/std-layout-local-num/src/main.slo");
    let glagol_project_std_layout_local_process_manifest =
        repo.join("examples/projects/std-layout-local-process/slovo.toml");
    let glagol_project_std_layout_local_process_process =
        repo.join("examples/projects/std-layout-local-process/src/process.slo");
    let glagol_project_std_layout_local_process_main =
        repo.join("examples/projects/std-layout-local-process/src/main.slo");
    let glagol_project_std_layout_local_result_manifest =
        repo.join("examples/projects/std-layout-local-result/slovo.toml");
    let glagol_project_std_layout_local_result_result =
        repo.join("examples/projects/std-layout-local-result/src/result.slo");
    let glagol_project_std_layout_local_result_main =
        repo.join("examples/projects/std-layout-local-result/src/main.slo");
    let glagol_project_std_layout_local_string_manifest =
        repo.join("examples/projects/std-layout-local-string/slovo.toml");
    let glagol_project_std_layout_local_string_string =
        repo.join("examples/projects/std-layout-local-string/src/string.slo");
    let glagol_project_std_layout_local_string_main =
        repo.join("examples/projects/std-layout-local-string/src/main.slo");
    let glagol_project_std_layout_local_cli_manifest =
        repo.join("examples/projects/std-layout-local-cli/slovo.toml");
    let glagol_project_std_layout_local_cli_cli =
        repo.join("examples/projects/std-layout-local-cli/src/cli.slo");
    let glagol_project_std_layout_local_cli_process =
        repo.join("examples/projects/std-layout-local-cli/src/process.slo");
    let glagol_project_std_layout_local_cli_string =
        repo.join("examples/projects/std-layout-local-cli/src/string.slo");
    let glagol_project_std_layout_local_cli_main =
        repo.join("examples/projects/std-layout-local-cli/src/main.slo");
    let glagol_project_std_layout_local_vec_i32_manifest =
        repo.join("examples/projects/std-layout-local-vec_i32/slovo.toml");
    let glagol_project_std_layout_local_vec_i32_vec_i32 =
        repo.join("examples/projects/std-layout-local-vec_i32/src/vec_i32.slo");
    let glagol_project_std_layout_local_vec_i32_main =
        repo.join("examples/projects/std-layout-local-vec_i32/src/main.slo");
    let glagol_project_std_import_time_manifest =
        repo.join("examples/projects/std-import-time/slovo.toml");
    let glagol_project_std_import_time_main =
        repo.join("examples/projects/std-import-time/src/main.slo");
    let glagol_project_std_import_random_manifest =
        repo.join("examples/projects/std-import-random/slovo.toml");
    let glagol_project_std_import_random_main =
        repo.join("examples/projects/std-import-random/src/main.slo");
    let glagol_project_std_import_env_manifest =
        repo.join("examples/projects/std-import-env/slovo.toml");
    let glagol_project_std_import_env_main =
        repo.join("examples/projects/std-import-env/src/main.slo");
    let glagol_project_std_import_fs_manifest =
        repo.join("examples/projects/std-import-fs/slovo.toml");
    let glagol_project_std_import_fs_main =
        repo.join("examples/projects/std-import-fs/src/main.slo");
    let glagol_project_std_import_process_manifest =
        repo.join("examples/projects/std-import-process/slovo.toml");
    let glagol_project_std_import_process_main =
        repo.join("examples/projects/std-import-process/src/main.slo");
    let glagol_project_std_import_string_manifest =
        repo.join("examples/projects/std-import-string/slovo.toml");
    let glagol_project_std_import_string_main =
        repo.join("examples/projects/std-import-string/src/main.slo");
    let glagol_project_std_import_num_manifest =
        repo.join("examples/projects/std-import-num/slovo.toml");
    let glagol_project_std_import_num_main =
        repo.join("examples/projects/std-import-num/src/main.slo");
    let glagol_project_std_import_io_manifest =
        repo.join("examples/projects/std-import-io/slovo.toml");
    let glagol_project_std_import_io_main =
        repo.join("examples/projects/std-import-io/src/main.slo");
    let glagol_project_std_import_cli_manifest =
        repo.join("examples/projects/std-import-cli/slovo.toml");
    let glagol_project_std_import_cli_main =
        repo.join("examples/projects/std-import-cli/src/main.slo");
    let glagol_project_std_import_vec_i32_manifest =
        repo.join("examples/projects/std-import-vec_i32/slovo.toml");
    let glagol_project_std_import_vec_i32_main =
        repo.join("examples/projects/std-import-vec_i32/src/main.slo");
    let glagol_project_std_import_vec_f64_manifest =
        repo.join("examples/projects/std-import-vec_f64/slovo.toml");
    let glagol_project_std_import_vec_f64_main =
        repo.join("examples/projects/std-import-vec_f64/src/main.slo");
    let glagol_project_std_import_vec_bool_manifest =
        repo.join("examples/projects/std-import-vec_bool/slovo.toml");
    let glagol_project_std_import_vec_bool_main =
        repo.join("examples/projects/std-import-vec_bool/src/main.slo");
    let glagol_test = repo.join("tests/top-level-test.slo");
    let glagol_formatter_canonical = repo.join("tests/canonical.fmt");
    let glagol_formatter_array_direct_scalars = repo.join("tests/array-direct-scalars.slo");
    let glagol_formatter_array_direct_scalars_value_flow =
        repo.join("tests/array-direct-scalars-value-flow.slo");
    let glagol_formatter_array_enum = repo.join("tests/array-enum.slo");
    let glagol_formatter_array_string = repo.join("tests/array-string.slo");
    let glagol_formatter_array_string_value_flow = repo.join("tests/array-string-value-flow.slo");
    let glagol_formatter_array_struct_elements = repo.join("tests/array-struct-elements.slo");
    let glagol_formatter_array = repo.join("tests/array.slo");
    let glagol_formatter_array_value_flow = repo.join("tests/array-value-flow.slo");
    let glagol_formatter_boolean_logic = repo.join("tests/boolean-logic.slo");
    let glagol_formatter_checked_i64_to_i32 = repo.join("tests/checked-i64-to-i32-conversion.slo");
    let glagol_formatter_comments = repo.join("tests/comments.slo");
    let glagol_formatter_enum_payload_direct_scalars =
        repo.join("tests/enum-payload-direct-scalars.slo");
    let glagol_formatter_enum_payload_structs = repo.join("tests/enum-payload-structs.slo");
    let glagol_formatter_enum_payload_i32 = repo.join("tests/enum-payload-i32.slo");
    let glagol_formatter_enum_struct_fields = repo.join("tests/enum-struct-fields.slo");
    let glagol_formatter_host_io = repo.join("tests/host-io.slo");
    let glagol_formatter_host_io_result = repo.join("tests/host-io-result.slo");
    let glagol_formatter_if = repo.join("tests/if.slo");
    let glagol_formatter_integer_bitwise = repo.join("tests/integer-bitwise.slo");
    let glagol_formatter_integer_remainder = repo.join("tests/integer-remainder.slo");
    let glagol_formatter_integer_to_string = repo.join("tests/integer-to-string.slo");
    let glagol_formatter_f64_to_string = repo.join("tests/f64-to-string.slo");
    let glagol_formatter_f64_to_i32_result = repo.join("tests/f64-to-i32-result.slo");
    let glagol_formatter_f64_to_i64_result = repo.join("tests/f64-to-i64-result.slo");
    let glagol_formatter_composite = repo.join("tests/composite-locals.slo");
    let glagol_formatter_composite_struct_fields = repo.join("tests/composite-struct-fields.slo");
    let glagol_formatter_test = repo.join("tests/top-level-test.fmt");
    let glagol_formatter_local = repo.join("tests/local-variables.slo");
    let glagol_formatter_numeric_struct_fields = repo.join("tests/numeric-struct-fields.slo");
    let glagol_formatter_numeric_widening = repo.join("tests/numeric-widening-conversions.slo");
    let glagol_formatter_option_result = repo.join("tests/option-result.slo");
    let glagol_formatter_option_result_flow = repo.join("tests/option-result-flow.slo");
    let glagol_formatter_option_result_match = repo.join("tests/option-result-match.slo");
    let glagol_formatter_option_result_payload = repo.join("tests/option-result-payload.slo");
    let glagol_formatter_owned_string_concat = repo.join("tests/owned-string-concat.slo");
    let glagol_formatter_print_bool = repo.join("tests/print-bool.slo");
    let glagol_formatter_primitive_struct_fields = repo.join("tests/primitive-struct-fields.slo");
    let glagol_formatter_random = repo.join("tests/random.slo");
    let glagol_formatter_stdin_result = repo.join("tests/stdin-result.slo");
    let glagol_formatter_string_parse_i32_result = repo.join("tests/string-parse-i32-result.slo");
    let glagol_formatter_string_parse_i64_result = repo.join("tests/string-parse-i64-result.slo");
    let glagol_formatter_string_parse_bool_result = repo.join("tests/string-parse-bool-result.slo");
    let glagol_formatter_result_helpers = repo.join("tests/result-helpers.slo");
    let glagol_formatter_standard_runtime = repo.join("tests/standard-runtime.slo");
    let glagol_formatter_time_sleep = repo.join("tests/time-sleep.slo");
    let glagol_formatter_string_print = repo.join("tests/string-print.slo");
    let glagol_formatter_string_value_flow = repo.join("tests/string-value-flow.slo");
    let glagol_formatter_struct = repo.join("tests/struct.slo");
    let glagol_formatter_struct_value_flow = repo.join("tests/struct-value-flow.slo");
    let glagol_formatter_unsafe = repo.join("tests/unsafe.slo");
    let glagol_formatter_vec_i32 = repo.join("tests/vec-i32.slo");
    let glagol_formatter_while = repo.join("tests/while.slo");

    assert_slovo_supported_fixtures(&repo);
    assert_slovo_formatter_fixtures(&repo);
    assert_slovo_v0_compatibility_fixtures(&repo);
    assert_source_eq(&glagol_add, &slovo_supported_add);
    assert_source_eq(
        &glagol_array_direct_scalars,
        &slovo_supported_array_direct_scalars,
    );
    assert_source_eq(
        &glagol_array_direct_scalars_value_flow,
        &slovo_supported_array_direct_scalars_value_flow,
    );
    assert_source_eq(&glagol_array_enum, &slovo_supported_array_enum);
    assert_source_eq(&glagol_array_string, &slovo_supported_array_string);
    assert_source_eq(
        &glagol_array_string_value_flow,
        &slovo_supported_array_string_value_flow,
    );
    assert_source_eq(
        &glagol_array_struct_elements,
        &slovo_supported_array_struct_elements,
    );
    assert_source_eq(&glagol_array, &slovo_supported_array);
    assert_source_eq(&glagol_array_value_flow, &slovo_supported_array_value_flow);
    assert_source_eq(&glagol_boolean_logic, &slovo_supported_boolean_logic);
    assert_source_eq(
        &glagol_checked_i64_to_i32,
        &slovo_supported_checked_i64_to_i32,
    );
    assert_source_eq(&glagol_enum_basic, &slovo_supported_enum_basic);
    assert_source_eq(
        &glagol_enum_payload_direct_scalars,
        &slovo_supported_enum_payload_direct_scalars,
    );
    assert_source_eq(
        &glagol_enum_payload_structs,
        &slovo_supported_enum_payload_structs,
    );
    assert_source_eq(&glagol_enum_payload_i32, &slovo_supported_enum_payload_i32);
    assert_source_eq(
        &glagol_enum_struct_fields,
        &slovo_supported_enum_struct_fields,
    );
    assert_source_eq(&glagol_host_io, &slovo_supported_host_io);
    assert_source_eq(&glagol_host_io_result, &slovo_supported_host_io_result);
    assert_source_eq(&glagol_if, &slovo_supported_if);
    assert_source_eq(&glagol_integer_bitwise, &slovo_supported_integer_bitwise);
    assert_source_eq(
        &glagol_integer_remainder,
        &slovo_supported_integer_remainder,
    );
    assert_source_eq(
        &glagol_integer_to_string,
        &slovo_supported_integer_to_string,
    );
    assert_source_eq(&glagol_f64_to_string, &slovo_supported_f64_to_string);
    assert_source_eq(
        &glagol_f64_to_i32_result,
        &slovo_supported_f64_to_i32_result,
    );
    assert_source_eq(
        &glagol_f64_to_i64_result,
        &slovo_supported_f64_to_i64_result,
    );
    assert_source_eq(&glagol_composite, &slovo_supported_composite);
    assert_source_eq(
        &glagol_composite_struct_fields,
        &slovo_supported_composite_struct_fields,
    );
    assert_source_eq(&glagol_test, &slovo_supported_test);
    assert_source_eq(&glagol_local, &slovo_supported_local);
    assert_source_eq(
        &glagol_numeric_struct_fields,
        &slovo_supported_numeric_struct_fields,
    );
    assert_source_eq(&glagol_numeric_widening, &slovo_supported_numeric_widening);
    assert_source_eq(&glagol_option_result, &slovo_supported_option_result);
    assert_source_eq(
        &glagol_option_result_flow,
        &slovo_supported_option_result_flow,
    );
    assert_source_eq(
        &glagol_option_result_match,
        &slovo_supported_option_result_match,
    );
    assert_source_eq(
        &glagol_option_result_payload,
        &slovo_supported_option_result_payload,
    );
    assert_source_eq(
        &glagol_owned_string_concat,
        &slovo_supported_owned_string_concat,
    );
    assert_source_eq(&glagol_print_bool, &slovo_supported_print_bool);
    assert_source_eq(
        &glagol_primitive_struct_fields,
        &slovo_supported_primitive_struct_fields,
    );
    assert_source_eq(&glagol_random, &slovo_supported_random);
    assert_source_eq(&glagol_stdin_result, &slovo_supported_stdin_result);
    assert_source_eq(
        &glagol_string_parse_i32_result,
        &slovo_supported_string_parse_i32_result,
    );
    assert_source_eq(
        &glagol_string_parse_i64_result,
        &slovo_supported_string_parse_i64_result,
    );
    assert_source_eq(
        &glagol_string_parse_bool_result,
        &slovo_supported_string_parse_bool_result,
    );
    assert_source_eq(&glagol_result_helpers, &slovo_supported_result_helpers);
    assert_source_eq(
        &glagol_result_f64_bool_match,
        &slovo_supported_result_f64_bool_match,
    );
    assert_source_eq(&glagol_standard_runtime, &slovo_supported_standard_runtime);
    assert_source_eq(&glagol_time_sleep, &slovo_supported_time_sleep);
    assert_source_eq(&glagol_string_print, &slovo_supported_string_print);
    assert_source_eq(
        &glagol_string_value_flow,
        &slovo_supported_string_value_flow,
    );
    assert_source_eq(&glagol_struct, &slovo_supported_struct);
    assert_source_eq(
        &glagol_struct_value_flow,
        &slovo_supported_struct_value_flow,
    );
    assert_source_eq(&glagol_unsafe, &slovo_supported_unsafe);
    assert_source_eq(&glagol_vec_i32, &slovo_supported_vec_i32);
    assert_source_eq(&glagol_vec_f64, &slovo_supported_vec_f64);
    assert_source_eq(&glagol_vec_bool, &slovo_supported_vec_bool);
    assert_source_eq(&glagol_vec_string, &slovo_supported_vec_string);
    assert_source_eq(&glagol_while, &slovo_supported_while);
    assert_source_eq(
        &glagol_project_enum_imports_manifest,
        &slovo_project_enum_imports_manifest,
    );
    assert_source_eq(
        &glagol_project_enum_imports_readings,
        &slovo_project_enum_imports_readings,
    );
    assert_source_eq(
        &glagol_project_enum_imports_main,
        &slovo_project_enum_imports_main,
    );
    assert!(glagol_project_std_layout_local_math_manifest.is_file());
    assert!(glagol_project_std_layout_local_math_math.is_file());
    assert!(glagol_project_std_layout_local_math_main.is_file());
    assert!(glagol_project_std_layout_local_num_manifest.is_file());
    assert!(glagol_project_std_layout_local_num_num.is_file());
    assert!(glagol_project_std_layout_local_num_main.is_file());
    assert!(glagol_project_std_layout_local_process_manifest.is_file());
    assert!(glagol_project_std_layout_local_process_process.is_file());
    assert!(glagol_project_std_layout_local_process_main.is_file());
    assert!(glagol_project_std_layout_local_result_manifest.is_file());
    assert!(glagol_project_std_layout_local_result_result.is_file());
    assert!(glagol_project_std_layout_local_result_main.is_file());
    assert!(glagol_project_std_layout_local_string_manifest.is_file());
    assert!(glagol_project_std_layout_local_string_string.is_file());
    assert!(glagol_project_std_layout_local_string_main.is_file());
    assert!(glagol_project_std_layout_local_cli_manifest.is_file());
    assert!(glagol_project_std_layout_local_cli_cli.is_file());
    assert!(glagol_project_std_layout_local_cli_process.is_file());
    assert!(glagol_project_std_layout_local_cli_string.is_file());
    assert!(glagol_project_std_layout_local_cli_main.is_file());
    assert!(glagol_project_std_layout_local_vec_i32_manifest.is_file());
    assert!(glagol_project_std_layout_local_vec_i32_vec_i32.is_file());
    assert!(glagol_project_std_layout_local_vec_i32_main.is_file());
    assert_source_eq(
        &glagol_project_std_import_time_manifest,
        &slovo_project_std_import_time_manifest,
    );
    assert_source_eq(
        &glagol_project_std_import_time_main,
        &slovo_project_std_import_time_main,
    );
    assert_source_eq(
        &glagol_project_std_import_random_manifest,
        &slovo_project_std_import_random_manifest,
    );
    assert_source_eq(
        &glagol_project_std_import_random_main,
        &slovo_project_std_import_random_main,
    );
    assert_source_eq(
        &glagol_project_std_import_env_manifest,
        &slovo_project_std_import_env_manifest,
    );
    assert_source_eq(
        &glagol_project_std_import_env_main,
        &slovo_project_std_import_env_main,
    );
    assert_source_eq(
        &glagol_project_std_import_fs_manifest,
        &slovo_project_std_import_fs_manifest,
    );
    assert_source_eq(
        &glagol_project_std_import_fs_main,
        &slovo_project_std_import_fs_main,
    );
    assert_source_eq(
        &glagol_project_std_import_process_manifest,
        &slovo_project_std_import_process_manifest,
    );
    assert_source_eq(
        &glagol_project_std_import_process_main,
        &slovo_project_std_import_process_main,
    );
    assert_source_eq(
        &glagol_project_std_import_string_manifest,
        &slovo_project_std_import_string_manifest,
    );
    assert_source_eq(
        &glagol_project_std_import_string_main,
        &slovo_project_std_import_string_main,
    );
    assert_source_eq(
        &glagol_project_std_import_num_manifest,
        &slovo_project_std_import_num_manifest,
    );
    assert_source_eq(
        &glagol_project_std_import_num_main,
        &slovo_project_std_import_num_main,
    );
    assert_source_eq(
        &glagol_project_std_import_io_manifest,
        &slovo_project_std_import_io_manifest,
    );
    assert_source_eq(
        &glagol_project_std_import_io_main,
        &slovo_project_std_import_io_main,
    );
    assert_source_eq(
        &glagol_project_std_import_cli_manifest,
        &slovo_project_std_import_cli_manifest,
    );
    assert_source_eq(
        &glagol_project_std_import_cli_main,
        &slovo_project_std_import_cli_main,
    );
    assert_source_eq(
        &glagol_project_std_import_vec_i32_manifest,
        &slovo_project_std_import_vec_i32_manifest,
    );
    assert_source_eq(
        &glagol_project_std_import_vec_i32_main,
        &slovo_project_std_import_vec_i32_main,
    );
    assert_source_eq(
        &glagol_project_std_import_vec_f64_manifest,
        &slovo_project_std_import_vec_f64_manifest,
    );
    assert_source_eq(
        &glagol_project_std_import_vec_f64_main,
        &slovo_project_std_import_vec_f64_main,
    );
    assert_source_eq(
        &glagol_project_std_import_vec_bool_manifest,
        &slovo_project_std_import_vec_bool_manifest,
    );
    assert_source_eq(
        &glagol_project_std_import_vec_bool_main,
        &slovo_project_std_import_vec_bool_main,
    );
    assert_source_eq(&glagol_formatter_canonical, &slovo_formatter_canonical);
    assert_source_eq(
        &glagol_formatter_array_direct_scalars,
        &slovo_formatter_array_direct_scalars,
    );
    assert_source_eq(
        &glagol_formatter_array_direct_scalars_value_flow,
        &slovo_formatter_array_direct_scalars_value_flow,
    );
    assert_source_eq(&glagol_formatter_array_enum, &slovo_formatter_array_enum);
    assert_source_eq(
        &glagol_formatter_array_string,
        &slovo_formatter_array_string,
    );
    assert_source_eq(
        &glagol_formatter_array_string_value_flow,
        &slovo_formatter_array_string_value_flow,
    );
    assert_source_eq(
        &glagol_formatter_array_struct_elements,
        &slovo_formatter_array_struct_elements,
    );
    assert_source_eq(&glagol_formatter_array, &slovo_formatter_array);
    assert_source_eq(
        &glagol_formatter_array_value_flow,
        &slovo_formatter_array_value_flow,
    );
    assert_source_eq(
        &glagol_formatter_boolean_logic,
        &slovo_formatter_boolean_logic,
    );
    assert_source_eq(
        &glagol_formatter_checked_i64_to_i32,
        &slovo_formatter_checked_i64_to_i32,
    );
    assert_source_eq(&glagol_formatter_comments, &slovo_formatter_comments);
    assert_source_eq(
        &glagol_formatter_enum_payload_direct_scalars,
        &slovo_formatter_enum_payload_direct_scalars,
    );
    assert_source_eq(
        &glagol_formatter_enum_payload_structs,
        &slovo_formatter_enum_payload_structs,
    );
    assert_source_eq(
        &glagol_formatter_enum_payload_i32,
        &slovo_formatter_enum_payload_i32,
    );
    assert_source_eq(
        &glagol_formatter_enum_struct_fields,
        &slovo_formatter_enum_struct_fields,
    );
    assert_source_eq(&glagol_formatter_host_io, &slovo_formatter_host_io);
    assert_source_eq(
        &glagol_formatter_host_io_result,
        &slovo_formatter_host_io_result,
    );
    assert_source_eq(&glagol_formatter_if, &slovo_formatter_if);
    assert_source_eq(
        &glagol_formatter_integer_bitwise,
        &slovo_formatter_integer_bitwise,
    );
    assert_source_eq(
        &glagol_formatter_integer_remainder,
        &slovo_formatter_integer_remainder,
    );
    assert_source_eq(
        &glagol_formatter_integer_to_string,
        &slovo_formatter_integer_to_string,
    );
    assert_source_eq(
        &glagol_formatter_f64_to_string,
        &slovo_formatter_f64_to_string,
    );
    assert_source_eq(
        &glagol_formatter_f64_to_i32_result,
        &slovo_formatter_f64_to_i32_result,
    );
    assert_source_eq(
        &glagol_formatter_f64_to_i64_result,
        &slovo_formatter_f64_to_i64_result,
    );
    assert_source_eq(&glagol_formatter_composite, &slovo_formatter_composite);
    assert_source_eq(
        &glagol_formatter_composite_struct_fields,
        &slovo_formatter_composite_struct_fields,
    );
    assert_source_eq(&glagol_formatter_test, &slovo_formatter_test);
    assert_source_eq(&glagol_formatter_local, &slovo_formatter_local);
    assert_source_eq(
        &glagol_formatter_numeric_struct_fields,
        &slovo_formatter_numeric_struct_fields,
    );
    assert_source_eq(
        &glagol_formatter_numeric_widening,
        &slovo_formatter_numeric_widening,
    );
    assert_source_eq(
        &glagol_formatter_option_result,
        &slovo_formatter_option_result,
    );
    assert_source_eq(
        &glagol_formatter_option_result_flow,
        &slovo_formatter_option_result_flow,
    );
    assert_source_eq(
        &glagol_formatter_option_result_match,
        &slovo_formatter_option_result_match,
    );
    assert_source_eq(
        &glagol_formatter_option_result_payload,
        &slovo_formatter_option_result_payload,
    );
    assert_source_eq(
        &glagol_formatter_owned_string_concat,
        &slovo_formatter_owned_string_concat,
    );
    assert_source_eq(&glagol_formatter_print_bool, &slovo_formatter_print_bool);
    assert_source_eq(
        &glagol_formatter_primitive_struct_fields,
        &slovo_formatter_primitive_struct_fields,
    );
    assert_source_eq(&glagol_formatter_random, &slovo_formatter_random);
    assert_source_eq(
        &glagol_formatter_stdin_result,
        &slovo_formatter_stdin_result,
    );
    assert_source_eq(
        &glagol_formatter_string_parse_i32_result,
        &slovo_formatter_string_parse_i32_result,
    );
    assert_source_eq(
        &glagol_formatter_string_parse_i64_result,
        &slovo_formatter_string_parse_i64_result,
    );
    assert_source_eq(
        &glagol_formatter_string_parse_bool_result,
        &slovo_formatter_string_parse_bool_result,
    );
    assert_source_eq(
        &glagol_formatter_result_helpers,
        &slovo_formatter_result_helpers,
    );
    assert_source_eq(
        &glagol_formatter_standard_runtime,
        &slovo_formatter_standard_runtime,
    );
    assert_source_eq(&glagol_formatter_time_sleep, &slovo_formatter_time_sleep);
    assert_source_eq(
        &glagol_formatter_string_print,
        &slovo_formatter_string_print,
    );
    assert_source_eq(
        &glagol_formatter_string_value_flow,
        &slovo_formatter_string_value_flow,
    );
    assert_source_eq(&glagol_formatter_struct, &slovo_formatter_struct);
    assert_source_eq(
        &glagol_formatter_struct_value_flow,
        &slovo_formatter_struct_value_flow,
    );
    assert_source_eq(&glagol_formatter_unsafe, &slovo_formatter_unsafe);
    assert_source_eq(&glagol_formatter_vec_i32, &slovo_formatter_vec_i32);
    assert_source_eq(&glagol_vec_f64, &slovo_formatter_vec_f64);
    assert_source_eq(&glagol_vec_bool, &slovo_formatter_vec_bool);
    assert_source_eq(&glagol_formatter_while, &slovo_formatter_while);
}

#[test]
#[ignore = "requires sibling slovo std/ contract files; default glagol tests stay standalone"]
fn hermeticum_slovo_std_source_layout_alpha_is_preserved() {
    let repo = repo_root();
    let slovo_std = repo.join("lib/std");

    assert_slovo_std_source_layout_alpha(&repo, &slovo_std);
}

fn assert_supported_fixtures(repo: &Path) {
    let supported_dir = repo.join("examples");
    let mut files = read_dir_files(&supported_dir);
    files.sort();

    assert_eq!(
        files,
        vec![
            supported_dir.join("add.slo"),
            supported_dir.join("array-direct-scalars-value-flow.slo"),
            supported_dir.join("array-direct-scalars.slo"),
            supported_dir.join("array-enum.slo"),
            supported_dir.join("array-string-value-flow.slo"),
            supported_dir.join("array-string.slo"),
            supported_dir.join("array-struct-elements.slo"),
            supported_dir.join("array-struct-fields.slo"),
            supported_dir.join("array-value-flow.slo"),
            supported_dir.join("array.slo"),
            supported_dir.join("boolean-logic.slo"),
            supported_dir.join("checked-i64-to-i32-conversion.slo"),
            supported_dir.join("composite-locals.slo"),
            supported_dir.join("composite-struct-fields.slo"),
            supported_dir.join("enum-basic.slo"),
            supported_dir.join("enum-payload-direct-scalars.slo"),
            supported_dir.join("enum-payload-i32.slo"),
            supported_dir.join("enum-payload-structs.slo"),
            supported_dir.join("enum-struct-fields.slo"),
            supported_dir.join("f64-numeric-primitive.slo"),
            supported_dir.join("f64-to-i32-result.slo"),
            supported_dir.join("f64-to-i64-result.slo"),
            supported_dir.join("f64-to-string.slo"),
            supported_dir.join("host-io-result.slo"),
            supported_dir.join("host-io.slo"),
            supported_dir.join("i64-numeric-primitive.slo"),
            supported_dir.join("if.slo"),
            supported_dir.join("integer-bitwise.slo"),
            supported_dir.join("integer-remainder.slo"),
            supported_dir.join("integer-to-string.slo"),
            supported_dir.join("local-variables.slo"),
            supported_dir.join("numeric-struct-fields.slo"),
            supported_dir.join("numeric-widening-conversions.slo"),
            supported_dir.join("option-result-flow.slo"),
            supported_dir.join("option-result-match.slo"),
            supported_dir.join("option-result-payload.slo"),
            supported_dir.join("option-result.slo"),
            supported_dir.join("owned-string-concat.slo"),
            supported_dir.join("primitive-struct-fields.slo"),
            supported_dir.join("print-bool.slo"),
            supported_dir.join("random.slo"),
            supported_dir.join("result-f64-bool-match.slo"),
            supported_dir.join("result-helpers.slo"),
            supported_dir.join("standard-runtime.slo"),
            supported_dir.join("stdin-result.slo"),
            supported_dir.join("string-parse-bool-result.slo"),
            supported_dir.join("string-parse-f64-result.slo"),
            supported_dir.join("string-parse-i32-result.slo"),
            supported_dir.join("string-parse-i64-result.slo"),
            supported_dir.join("string-parse-u32-result.slo"),
            supported_dir.join("string-parse-u64-result.slo"),
            supported_dir.join("string-print.slo"),
            supported_dir.join("string-value-flow.slo"),
            supported_dir.join("struct-value-flow.slo"),
            supported_dir.join("struct.slo"),
            supported_dir.join("time-sleep.slo"),
            supported_dir.join("u32-numeric-primitive.slo"),
            supported_dir.join("u64-numeric-primitive.slo"),
            supported_dir.join("unsafe.slo"),
            supported_dir.join("unsigned-integer-to-string.slo"),
            supported_dir.join("vec-bool.slo"),
            supported_dir.join("vec-f64.slo"),
            supported_dir.join("vec-i32.slo"),
            supported_dir.join("vec-string.slo"),
            supported_dir.join("while.slo"),
        ],
        "promotion gate expects Glagol supported fixtures to match the current supported surface"
    );
}

fn assert_slovo_supported_fixtures(repo: &Path) {
    let supported_dir = repo.join("docs/language/examples/supported");
    let mut files = read_dir_files(&supported_dir);
    files.sort();

    assert_eq!(
        files,
        vec![
            supported_dir.join("add.slo"),
            supported_dir.join("array-direct-scalars-value-flow.slo"),
            supported_dir.join("array-direct-scalars.slo"),
            supported_dir.join("array-enum.slo"),
            supported_dir.join("array-string-value-flow.slo"),
            supported_dir.join("array-string.slo"),
            supported_dir.join("array-struct-elements.slo"),
            supported_dir.join("array-struct-fields.slo"),
            supported_dir.join("array-value-flow.slo"),
            supported_dir.join("array.slo"),
            supported_dir.join("boolean-logic.slo"),
            supported_dir.join("checked-i64-to-i32-conversion.slo"),
            supported_dir.join("composite-locals.slo"),
            supported_dir.join("composite-struct-fields.slo"),
            supported_dir.join("enum-basic.slo"),
            supported_dir.join("enum-payload-direct-scalars.slo"),
            supported_dir.join("enum-payload-i32.slo"),
            supported_dir.join("enum-payload-structs.slo"),
            supported_dir.join("enum-struct-fields.slo"),
            supported_dir.join("f64-numeric-primitive.slo"),
            supported_dir.join("f64-to-i32-result.slo"),
            supported_dir.join("f64-to-i64-result.slo"),
            supported_dir.join("f64-to-string.slo"),
            supported_dir.join("host-io-result.slo"),
            supported_dir.join("host-io.slo"),
            supported_dir.join("i64-numeric-primitive.slo"),
            supported_dir.join("if.slo"),
            supported_dir.join("integer-bitwise.slo"),
            supported_dir.join("integer-remainder.slo"),
            supported_dir.join("integer-to-string.slo"),
            supported_dir.join("local-variables.slo"),
            supported_dir.join("numeric-struct-fields.slo"),
            supported_dir.join("numeric-widening-conversions.slo"),
            supported_dir.join("option-result-flow.slo"),
            supported_dir.join("option-result-match.slo"),
            supported_dir.join("option-result-payload.slo"),
            supported_dir.join("option-result.slo"),
            supported_dir.join("owned-string-concat.slo"),
            supported_dir.join("primitive-struct-fields.slo"),
            supported_dir.join("print-bool.slo"),
            supported_dir.join("random.slo"),
            supported_dir.join("result-f64-bool-match.slo"),
            supported_dir.join("result-helpers.slo"),
            supported_dir.join("standard-runtime.slo"),
            supported_dir.join("stdin-result.slo"),
            supported_dir.join("string-parse-bool-result.slo"),
            supported_dir.join("string-parse-f64-result.slo"),
            supported_dir.join("string-parse-i32-result.slo"),
            supported_dir.join("string-parse-i64-result.slo"),
            supported_dir.join("string-parse-u32-result.slo"),
            supported_dir.join("string-parse-u64-result.slo"),
            supported_dir.join("string-print.slo"),
            supported_dir.join("string-value-flow.slo"),
            supported_dir.join("struct-value-flow.slo"),
            supported_dir.join("struct.slo"),
            supported_dir.join("time-sleep.slo"),
            supported_dir.join("top-level-test.slo"),
            supported_dir.join("u32-numeric-primitive.slo"),
            supported_dir.join("u64-numeric-primitive.slo"),
            supported_dir.join("unsafe.slo"),
            supported_dir.join("unsigned-integer-to-string.slo"),
            supported_dir.join("vec-bool.slo"),
            supported_dir.join("vec-f64.slo"),
            supported_dir.join("vec-i32.slo"),
            supported_dir.join("vec-i64.slo"),
            supported_dir.join("vec-string.slo"),
            supported_dir.join("while.slo"),
        ],
        "promotion gate expects Slovo supported fixtures to match the current supported surface"
    );
}

fn assert_glagol_test_fixtures(repo: &Path) {
    let tests_dir = repo.join("tests");
    assert_file_name_inventory(
        &tests_dir,
        &["slo", "fmt"],
        GLAGOL_TEST_FIXTURES,
        "promotion gate expects Glagol test/formatter fixtures to be explicitly inventoried",
    );
}

fn assert_lowering_inspector_fixture_inventory(repo: &Path) {
    assert_file_name_inventory(
        &repo.join("tests"),
        &["lower"],
        LOWERING_INSPECTOR_FIXTURES,
        "promotion gate expects lowering inspector fixtures to be explicitly inventoried",
    );
}

fn assert_slovo_formatter_fixtures(repo: &Path) {
    let formatter_dir = repo.join("docs/language/examples/formatter");
    assert_file_name_inventory(
        &formatter_dir,
        &["slo"],
        SLOVO_FORMATTER_FIXTURES,
        "promotion gate expects Slovo formatter fixtures to be explicitly inventoried",
    );
}

fn assert_slovo_v0_compatibility_fixtures(repo: &Path) {
    assert_file_name_inventory(
        &repo.join("docs/language/examples/compat/v0/supported"),
        &["slo"],
        SLOVO_V0_SUPPORTED_COMPATIBILITY_FIXTURES,
        "promotion gate expects frozen Slovo v0 supported compatibility fixtures",
    );
    assert_file_name_inventory(
        &repo.join("docs/language/examples/compat/v0/formatter"),
        &["slo"],
        SLOVO_V0_FORMATTER_COMPATIBILITY_FIXTURES,
        "promotion gate expects frozen Slovo v0 formatter compatibility fixtures",
    );
}

fn assert_slovo_std_source_layout_alpha(repo: &Path, std_dir: &Path) {
    assert!(
        std_dir.is_dir(),
        "`{}` must exist for exp-30 std source layout alpha",
        std_dir.display()
    );

    let mut files = read_dir_files(std_dir);
    files.sort();
    assert_eq!(
        files,
        vec![
            std_dir.join("README.md"),
            std_dir.join("cli.slo"),
            std_dir.join("env.slo"),
            std_dir.join("fs.slo"),
            std_dir.join("io.slo"),
            std_dir.join("json.slo"),
            std_dir.join("math.slo"),
            std_dir.join("net.slo"),
            std_dir.join("num.slo"),
            std_dir.join("option.slo"),
            std_dir.join("process.slo"),
            std_dir.join("random.slo"),
            std_dir.join("result.slo"),
            std_dir.join("string.slo"),
            std_dir.join("time.slo"),
            std_dir.join("vec_bool.slo"),
            std_dir.join("vec_f64.slo"),
            std_dir.join("vec_i32.slo"),
            std_dir.join("vec_i64.slo"),
            std_dir.join("vec_string.slo"),
        ],
        "std source layout alpha expects an exact file inventory"
    );

    let readme = read(&std_dir.join("README.md"));
    assert!(
        readme.contains("source layout") || readme.contains("Source Layout"),
        "std/README.md should describe std as a source-layout contract artifact"
    );

    for file in [
        "io.slo",
        "cli.slo",
        "env.slo",
        "fs.slo",
        "math.slo",
        "net.slo",
        "json.slo",
        "num.slo",
        "option.slo",
        "process.slo",
        "random.slo",
        "result.slo",
        "string.slo",
        "time.slo",
        "vec_i32.slo",
    ] {
        let path = std_dir.join(file);
        assert_source_shaped_file(&path);

        // Import-bearing std sources are validated through their project fixtures.
        if file != "cli.slo"
            && file != "env.slo"
            && file != "fs.slo"
            && file != "io.slo"
            && file != "json.slo"
            && file != "process.slo"
            && file != "string.slo"
            && file != "vec_i32.slo"
        {
            let check = run_glagol([OsStr::new("check"), path.as_os_str()]);
            assert_success_stdout(check, "", &format!("std source check for `{}`", file));
        }

        if file != "vec_i32.slo" {
            let format = run_glagol([OsStr::new("--format"), path.as_os_str()]);
            assert_success_stdout(
                format,
                &read(&path),
                &format!("std source formatter stability for `{}`", file),
            );
        }
    }

    let local_math = repo.join("examples/projects/std-layout-local-math/src/math.slo");
    let slovo_math = read(&std_dir.join("math.slo"));
    let glagol_math = read(&local_math);
    assert!(
        slovo_math.contains("(module math") && glagol_math.contains("(module math"),
        "both Slovo std/math.slo and the Glagol local fixture should use explicit `math` module source shape"
    );
    assert!(
        !slovo_math.contains("std.") && !glagol_math.contains("std."),
        "exp-39 standard math helpers must stay source-authored without compiler-known std runtime calls"
    );
    assert_eq!(
        normalize_local_math_fixture_helpers(&glagol_math),
        slovo_math.trim_end(),
        "Glagol local math helper source must match sibling Slovo std/math.slo"
    );
    for helper in STANDARD_MATH_SOURCE_HELPERS_ALPHA {
        assert!(
            slovo_math.contains(&format!("(fn {} ", helper)),
            "Slovo std/math.slo is missing exp-39 helper `{}`",
            helper
        );
        assert!(
            glagol_math.contains(&format!("(fn {} ", helper)),
            "Glagol local math fixture is missing exp-39 helper `{}`",
            helper
        );
    }

    let local_option = repo.join("examples/projects/std-layout-local-option/src/option.slo");
    let slovo_option = read(&std_dir.join("option.slo"));
    let glagol_option = read(&local_option);
    assert!(
        slovo_option.contains("(module option") && glagol_option.contains("(module option"),
        "both Slovo std/option.slo and the Glagol local fixture should use explicit `option` module source shape"
    );
    assert!(
        !slovo_option.contains("std.") && !glagol_option.contains("std."),
        "exp-36 standard option helpers must stay source-authored without compiler-known std runtime calls"
    );
    for helper in STANDARD_OPTION_SOURCE_HELPERS_ALPHA {
        assert!(
            slovo_option.contains(&format!("(fn {} ", helper)),
            "Slovo std/option.slo is missing exp-36 helper `{}`",
            helper
        );
        assert!(
            glagol_option.contains(&format!("(fn {} ", helper)),
            "Glagol local option fixture is missing exp-36 helper `{}`",
            helper
        );
    }
    for helper in STANDARD_OPTION_RESULT_BRIDGE_HELPERS_ALPHA {
        assert!(
            slovo_option.contains(&format!("(fn {} ", helper)),
            "Slovo std/option.slo is missing exp-109 bridge helper `{}`",
            helper
        );
        assert!(
            glagol_option.contains(&format!("(fn {} ", helper)),
            "Glagol local option fixture is missing exp-109 bridge helper `{}`",
            helper
        );
    }

    let local_result = repo.join("examples/projects/std-layout-local-result/src/result.slo");
    let slovo_result = read(&std_dir.join("result.slo"));
    let glagol_result = read(&local_result);
    assert!(
        slovo_result.contains("(module result") && glagol_result.contains("(module result"),
        "both Slovo std/result.slo and the Glagol local fixture should use explicit `result` module source shape"
    );
    assert!(
        !slovo_result.contains("std.result.map")
            && !slovo_result.contains("std.result.and_then")
            && !slovo_result.contains("std.result.unwrap_or")
            && !glagol_result.contains("std.result.map")
            && !glagol_result.contains("std.result.and_then")
            && !glagol_result.contains("std.result.unwrap_or"),
        "exp-33 standard result source helpers must not introduce deferred compiler-known result helpers"
    );
    for helper in STANDARD_RESULT_SOURCE_SEARCH_ALPHA {
        assert!(
            slovo_result.contains(&format!("(fn {} ", helper)),
            "Slovo std/result.slo is missing exp-33 helper `{}`",
            helper
        );
        assert!(
            glagol_result.contains(&format!("(fn {} ", helper)),
            "Glagol local result fixture is missing exp-33 helper `{}`",
            helper
        );
    }
    for helper in STANDARD_RESULT_OPTION_BRIDGE_HELPERS_ALPHA {
        assert!(
            slovo_result.contains(&format!("(fn {} ", helper)),
            "Slovo std/result.slo is missing exp-109 bridge helper `{}`",
            helper
        );
        assert!(
            glagol_result.contains(&format!("(fn {} ", helper)),
            "Glagol local result fixture is missing exp-109 bridge helper `{}`",
            helper
        );
    }

    let slovo_string = read(&std_dir.join("string.slo"));
    assert!(
        slovo_string.starts_with("(module string (export "),
        "Slovo std/string.slo must directly export imported helpers"
    );
    assert!(
        slovo_string.contains("(fn parse_bool_result ")
            && slovo_string.contains("(std.string.parse_bool_result value)")
            && slovo_string.contains(
                "(import std.result (ok_or_none_i32 ok_or_none_u32 ok_or_none_i64 ok_or_none_u64 ok_or_none_f64 ok_or_none_bool))",
            ),
        "Slovo std/string.slo must preserve parse result helpers and the std.result option bridge import"
    );
    assert_std_only_contains(
        &slovo_string,
        &[
            "std.result",
            "std.string.parse_bool_result",
            "std.string.parse_f64_result",
            "std.string.parse_u64_result",
            "std.string.parse_i64_result",
            "std.string.parse_u32_result",
            "std.string.parse_i32_result",
            "std.string.byte_at_result",
            "std.string.slice_result",
            "std.string.starts_with",
            "std.string.ends_with",
            "std.string.concat",
            "std.string.len",
        ],
        "Slovo std/string.slo must not introduce other compiler-known std names",
    );
    for helper in STANDARD_STRING_SOURCE_FACADE_ALPHA {
        assert!(
            slovo_string.contains(&format!("(fn {} ", helper)),
            "Slovo std/string.slo is missing exp-48 facade `{}`",
            helper
        );
    }

    let local_num = repo.join("examples/projects/std-layout-local-num/src/num.slo");
    let slovo_num = read(&std_dir.join("num.slo"));
    let glagol_num = read(&local_num);
    assert!(
        slovo_num.starts_with("(module num (export ")
            && glagol_num.starts_with("(module num (export "),
        "both Slovo std/num.slo and the Glagol local fixture must directly export imported helpers"
    );
    for source in [&slovo_num, &glagol_num] {
        assert_std_only_contains(
            source,
            &[
                "std.num.i32_to_i64",
                "std.num.i32_to_f64",
                "std.num.i64_to_f64",
                "std.num.i64_to_i32_result",
                "std.num.f64_to_i32_result",
                "std.num.f64_to_i64_result",
                "std.num.i32_to_string",
                "std.num.u32_to_string",
                "std.num.i64_to_string",
                "std.num.u64_to_string",
                "std.num.f64_to_string",
            ],
            "exp-64 standard num facade must not introduce other compiler-known std names",
        );
        assert!(
            !source.contains("saturat")
                && !source.contains("round")
                && !source.contains("floor")
                && !source.contains("ceil")
                && !source.contains("generic"),
            "exp-64 standard num facade must not claim deferred numeric conversion policies or generic abstractions"
        );
    }
    for helper in STANDARD_NUM_SOURCE_FACADE_ALPHA {
        assert!(
            slovo_num.contains(&format!("(fn {} ", helper)),
            "Slovo std/num.slo is missing exp-64 facade `{}`",
            helper
        );
        assert!(
            glagol_num.contains(&format!("(fn {} ", helper)),
            "Glagol local num fixture is missing exp-64 facade `{}`",
            helper
        );
    }

    let slovo_io = read(&std_dir.join("io.slo"));
    assert!(
        slovo_io.starts_with("(module io (export "),
        "Slovo std/io.slo must directly export imported helpers"
    );
    assert!(
        slovo_io.contains(
            "(import std.result (ok_or_none_string ok_or_none_i32 ok_or_none_u32 ok_or_none_i64 ok_or_none_u64 ok_or_none_f64 ok_or_none_bool))",
        ) && slovo_io.contains(
            "(import std.string (parse_i32_result parse_u32_result parse_i64_result parse_u64_result parse_f64_result parse_bool_result))",
        ) && slovo_io.contains("(std.io.read_stdin_result)"),
        "Slovo std/io.slo must preserve stdin-result source helpers over std.result and std.string bridge imports"
    );
    assert_std_only_contains(
        &slovo_io,
        &[
            "std.io.print_i32",
            "std.io.print_i64",
            "std.io.print_u32",
            "std.io.print_u64",
            "std.io.print_f64",
            "std.io.print_string",
            "std.io.print_bool",
            "std.io.read_stdin_result",
            "std.result",
            "std.string",
        ],
        "Slovo std/io.slo must not introduce other compiler-known std names",
    );
    for helper in STANDARD_IO_SOURCE_FACADE_ALPHA {
        assert!(
            slovo_io.contains(&format!("(fn {} ", helper)),
            "Slovo std/io.slo is missing exp-49 facade `{}`",
            helper
        );
    }

    let local_vec_i32 = repo.join("examples/projects/std-layout-local-vec_i32/src/vec_i32.slo");
    let local_vec_i32_option =
        repo.join("examples/projects/std-layout-local-vec_i32/src/option.slo");
    let slovo_vec_i32 = read(&std_dir.join("vec_i32.slo"));
    let glagol_vec_i32 = read(&local_vec_i32);
    let glagol_vec_i32_option = read(&local_vec_i32_option);
    assert!(
        slovo_vec_i32.starts_with("(module vec_i32 (export ")
            && glagol_vec_i32.starts_with("(module vec_i32 (export "),
        "both Slovo std/vec_i32.slo and the Glagol local fixture must directly export imported helpers"
    );
    assert!(
        glagol_vec_i32_option.starts_with("(module option (export "),
        "Glagol local vec_i32 option helper source must stay an explicit local module"
    );
    assert_eq!(
        normalize_local_vec_i32_fixture_helpers(&glagol_vec_i32),
        slovo_vec_i32.trim_end(),
        "Glagol local vec_i32 helper source must match sibling Slovo std/vec_i32.slo"
    );
    for source in [&slovo_vec_i32, &glagol_vec_i32] {
        assert_std_only_contains(
            source,
            &[
                "std.vec.i32.empty",
                "std.vec.i32.append",
                "std.vec.i32.len",
                "std.vec.i32.index",
                "std.option",
            ],
            "exp-93 standard vec_i32 facade must not introduce other compiler-known std names",
        );
        assert!(
            !source.contains("capacity")
                && !source.contains("reserve")
                && !source.contains("shrink")
                && !source.contains("sort")
                && !source.contains("map")
                && !source.contains("filter")
                && !source.contains("(vec i64)")
                && !source.contains("(vec f64)")
                && !source.contains("(vec string)")
                && !source.contains("(vec bool)")
                && !source.contains("(option i64)")
                && !source.contains("(option f64)")
                && !source.contains("(option string)")
                && !source.contains("(option bool)"),
            "exp-93 standard vec_i32 facade must stay limited to concrete i32 vec and option helpers"
        );
    }
    for helper in STANDARD_VEC_I32_SOURCE_FACADE_ALPHA {
        assert!(
            slovo_vec_i32.contains(&format!("(fn {} ", helper)),
            "Slovo std/vec_i32.slo is missing exp-93 facade `{}`",
            helper
        );
        assert!(
            glagol_vec_i32.contains(&format!("(fn {} ", helper)),
            "Glagol local vec_i32 fixture is missing exp-93 facade `{}`",
            helper
        );
    }

    let local_process = repo.join("examples/projects/std-layout-local-process/src/process.slo");
    let local_process_string =
        repo.join("examples/projects/std-layout-local-process/src/string.slo");
    let slovo_process = read(&std_dir.join("process.slo"));
    let glagol_process = read(&local_process);
    let glagol_process_string = read(&local_process_string);
    assert!(
        slovo_process.starts_with("(module process (export ")
            && glagol_process.starts_with("(module process (export "),
        "both Slovo std/process.slo and the Glagol local fixture must directly export imported helpers"
    );
    assert!(
        slovo_process.contains("(std.process.argc)")
            && slovo_process.contains("(std.process.arg index)")
            && slovo_process.contains("(std.process.arg_result index)")
            && slovo_process.contains(
                "(import std.result (ok_or_none_string ok_or_none_i32 ok_or_none_u32 ok_or_none_i64 ok_or_none_u64 ok_or_none_f64 ok_or_none_bool))",
            )
            && slovo_process.contains("(std.string.parse_i32_result text)")
            && slovo_process.contains("(std.string.parse_u32_result text)")
            && slovo_process.contains("(std.string.parse_i64_result text)")
            && slovo_process.contains("(std.string.parse_u64_result text)")
            && slovo_process.contains("(std.string.parse_f64_result text)")
            && slovo_process.contains("(std.string.parse_bool_result text)")
            && glagol_process.contains(
                "(import result (ok_or_none_string ok_or_none_i32 ok_or_none_u32 ok_or_none_i64 ok_or_none_u64 ok_or_none_f64 ok_or_none_bool))",
            )
            && glagol_process.contains("(import string (parse_i32_result parse_u32_result parse_i64_result parse_u64_result parse_f64_result parse_bool_result))")
            && glagol_process.contains("(std.process.argc)")
            && glagol_process.contains("(std.process.arg index)")
            && glagol_process.contains("(std.process.arg_result index)")
            && glagol_process_string.starts_with("(module string (export ")
            && glagol_process_string.contains(
                "(import result (ok_or_none_i32 ok_or_none_u32 ok_or_none_i64 ok_or_none_u64 ok_or_none_f64 ok_or_none_bool))",
            ),
        "exp-67 standard process facade must stay backed by existing promoted process and parse result calls"
    );
    assert_std_only_contains(
        &slovo_process,
        &[
            "std.process.arg_result",
            "std.process.argc",
            "std.process.arg",
            "std.result",
            "std.string.parse_i32_result",
            "std.string.parse_u32_result",
            "std.string.parse_i64_result",
            "std.string.parse_u64_result",
            "std.string.parse_f64_result",
            "std.string.parse_bool_result",
        ],
        "Slovo std/process.slo must not introduce other compiler-known std names",
    );
    assert_std_only_contains(
        &glagol_process,
        &[
            "std.process.arg_result",
            "std.process.argc",
            "std.process.arg",
        ],
        "Glagol local process fixture must not introduce direct compiler-known std names beyond process calls",
    );
    assert_std_only_contains(
        &glagol_process_string,
        &[
            "std.string.len",
            "std.string.concat",
            "std.string.parse_i32_result",
            "std.string.parse_u32_result",
            "std.string.parse_i64_result",
            "std.string.parse_u64_result",
            "std.string.parse_f64_result",
            "std.string.parse_bool_result",
        ],
        "Glagol local process string fixture must not introduce other compiler-known std names",
    );
    assert!(
        !slovo_process.contains("spawn")
            && !slovo_process.contains("exit")
            && !slovo_process.contains("cwd")
            && !slovo_process.contains("signal")
            && !glagol_process.contains("spawn")
            && !glagol_process.contains("exit")
            && !glagol_process.contains("cwd")
            && !glagol_process.contains("signal"),
        "exp-67 standard process facade must not claim deferred process APIs"
    );
    for helper in STANDARD_PROCESS_SOURCE_FACADE_ALPHA {
        assert!(
            slovo_process.contains(&format!("(fn {} ", helper)),
            "Slovo std/process.slo is missing exp-67 facade `{}`",
            helper
        );
        assert!(
            glagol_process.contains(&format!("(fn {} ", helper)),
            "Glagol local process fixture is missing exp-67 facade `{}`",
            helper
        );
    }

    let local_cli = repo.join("examples/projects/std-layout-local-cli/src/cli.slo");
    let local_cli_process = repo.join("examples/projects/std-layout-local-cli/src/process.slo");
    let local_cli_string = repo.join("examples/projects/std-layout-local-cli/src/string.slo");
    let slovo_cli = read(&std_dir.join("cli.slo"));
    let glagol_cli = read(&local_cli);
    let glagol_cli_process = read(&local_cli_process);
    let glagol_cli_string = read(&local_cli_string);
    assert!(
        slovo_cli.starts_with("(module cli (export "),
        "Slovo std/cli.slo must directly export imported helpers"
    );
    assert!(
        slovo_cli.contains("(import std.process (arg_result))")
            && slovo_cli.contains(
                "(import std.result (ok_or_none_string ok_or_none_i32 ok_or_none_u32 ok_or_none_i64 ok_or_none_u64 ok_or_none_f64 ok_or_none_bool))",
            )
            && slovo_cli
                .contains("(import std.string (parse_i32_result parse_u32_result parse_i64_result parse_u64_result parse_f64_result parse_bool_result))"),
        "standard cli facade must use transitive standard-source imports, including the std.result option bridge"
    );
    assert_std_only_contains(
        &slovo_cli,
        &["std.process", "std.result", "std.string"],
        "Slovo std/cli.slo must not use compiler-known std runtime names directly",
    );
    assert!(
        glagol_cli.starts_with("(module cli (export "),
        "Glagol local cli fixture must stay an explicit local module export"
    );
    assert!(
        glagol_cli.contains("(import process (arg_result))")
            && glagol_cli.contains(
                "(import result (ok_or_none_string ok_or_none_i32 ok_or_none_u32 ok_or_none_i64 ok_or_none_u64 ok_or_none_f64 ok_or_none_bool))"
            )
            && glagol_cli.contains(
                "(import string (parse_i32_result parse_u32_result parse_i64_result parse_u64_result parse_f64_result parse_bool_result))"
            )
            && !glagol_cli.contains("std."),
        "Glagol local cli fixture must stay a source-authored local import chain"
    );
    assert!(
        glagol_cli_process.starts_with("(module process (export ")
            && glagol_cli_process.contains(
                "(import result (ok_or_none_string ok_or_none_i32 ok_or_none_u32 ok_or_none_i64 ok_or_none_u64 ok_or_none_f64 ok_or_none_bool))",
            )
            && glagol_cli_process.contains("(std.process.argc)")
            && glagol_cli_process.contains("(std.process.arg index)")
            && glagol_cli_process.contains("(std.process.arg_result index)")
            && glagol_cli_process.contains("(std.string.parse_i32_result text)")
            && glagol_cli_process.contains("(std.string.parse_u32_result text)")
            && glagol_cli_process.contains("(std.string.parse_i64_result text)")
            && glagol_cli_process.contains("(std.string.parse_u64_result text)")
            && glagol_cli_process.contains("(std.string.parse_f64_result text)")
            && glagol_cli_process.contains("(std.string.parse_bool_result text)"),
        "Glagol local cli process fixture must stay aligned with the local process facade surface"
    );
    assert_std_only_contains(
        &glagol_cli_process,
        &[
            "std.process.arg_result",
            "std.process.argc",
            "std.process.arg",
            "std.string.parse_i32_result",
            "std.string.parse_u32_result",
            "std.string.parse_i64_result",
            "std.string.parse_u64_result",
            "std.string.parse_f64_result",
            "std.string.parse_bool_result",
        ],
        "Glagol local cli process fixture must not introduce other compiler-known std names",
    );
    assert!(
        glagol_cli_string.starts_with("(module string (export ")
            && glagol_cli_string.contains(
                "(import result (ok_or_none_i32 ok_or_none_u32 ok_or_none_i64 ok_or_none_u64 ok_or_none_f64 ok_or_none_bool))",
            ),
        "Glagol local cli string fixture must stay a local parse-result helper module"
    );
    assert_std_only_contains(
        &glagol_cli_string,
        &[
            "std.string.len",
            "std.string.concat",
            "std.string.parse_i32_result",
            "std.string.parse_u32_result",
            "std.string.parse_i64_result",
            "std.string.parse_u64_result",
            "std.string.parse_f64_result",
            "std.string.parse_bool_result",
        ],
        "Glagol local cli string fixture must not introduce other compiler-known std names",
    );
    for helper in STANDARD_CLI_SOURCE_FACADE_ALPHA {
        assert!(
            slovo_cli.contains(&format!("(fn {} ", helper)),
            "Slovo std/cli.slo is missing CLI facade `{}`",
            helper
        );
        assert!(
            glagol_cli.contains(&format!("(fn {} ", helper)),
            "Glagol local cli fixture is missing exp-78 facade `{}`",
            helper
        );
    }
    for helper in STANDARD_STRING_PARSE_RESULT_HELPERS_ALPHA {
        assert!(
            glagol_cli_string.contains(&format!("(fn {} ", helper)),
            "Glagol local cli string fixture is missing parse helper `{}`",
            helper
        );
    }

    let local_time = repo.join("examples/projects/std-layout-local-time/src/time.slo");
    let slovo_time = read(&std_dir.join("time.slo"));
    let glagol_time = read(&local_time);
    assert!(
        slovo_time.contains("(module time") && glagol_time.contains("(module time"),
        "both Slovo std/time.slo and the Glagol local fixture should use explicit `time` module source shape"
    );
    assert!(
        slovo_time.contains("(std.time.monotonic_ms)")
            && slovo_time.contains("(std.time.sleep_ms 0)")
            && glagol_time.contains("(std.time.monotonic_ms)")
            && glagol_time.contains("(std.time.sleep_ms 0)"),
        "exp-37 standard time facade must stay backed by the existing promoted std.time calls"
    );
    for helper in STANDARD_TIME_SOURCE_FACADE_ALPHA {
        assert!(
            slovo_time.contains(&format!("(fn {} ", helper)),
            "Slovo std/time.slo is missing exp-37 facade `{}`",
            helper
        );
        assert!(
            glagol_time.contains(&format!("(fn {} ", helper)),
            "Glagol local time fixture is missing exp-37 facade `{}`",
            helper
        );
    }
    assert!(
        !slovo_time.contains("std.time.now")
            && !glagol_time.contains("std.time.now")
            && !slovo_time.contains("calendar")
            && !glagol_time.contains("calendar")
            && !slovo_time.contains("timezone")
            && !glagol_time.contains("timezone")
            && !slovo_time.contains("async")
            && !glagol_time.contains("async")
            && !slovo_time.contains("cancel")
            && !glagol_time.contains("cancel")
            && !slovo_time.contains("schedule")
            && !glagol_time.contains("schedule"),
        "exp-37 standard time facade must not claim deferred time APIs or scheduling semantics"
    );

    let local_random = repo.join("examples/projects/std-layout-local-random/src/random.slo");
    let slovo_random = read(&std_dir.join("random.slo"));
    let glagol_random = read(&local_random);
    assert!(
        slovo_random.contains("(module random") && glagol_random.contains("(module random"),
        "both Slovo std/random.slo and the Glagol local fixture should use explicit `random` module source shape"
    );
    assert!(
        slovo_random.contains("(std.random.i32)") && glagol_random.contains("(std.random.i32)"),
        "exp-38 standard random facade must stay backed by the existing promoted std.random.i32 call"
    );
    assert_std_only_contains(
        &slovo_random,
        &["std.random.i32"],
        "Slovo std/random.slo must not introduce other compiler-known std names",
    );
    assert_std_only_contains(
        &glagol_random,
        &["std.random.i32"],
        "Glagol local random fixture must not introduce other compiler-known std names",
    );
    assert!(
        !slovo_random.contains("seed")
            && !glagol_random.contains("seed")
            && !slovo_random.contains("range")
            && !glagol_random.contains("range")
            && !slovo_random.contains("bytes")
            && !glagol_random.contains("bytes")
            && !slovo_random.contains("float")
            && !glagol_random.contains("float")
            && !slovo_random.contains("uuid")
            && !glagol_random.contains("uuid")
            && !slovo_random.contains("crypto")
            && !glagol_random.contains("crypto"),
        "exp-38 standard random facade must not claim deferred random APIs"
    );
    for helper in STANDARD_RANDOM_SOURCE_FACADE_ALPHA {
        assert!(
            slovo_random.contains(&format!("(fn {} ", helper)),
            "Slovo std/random.slo is missing exp-38 facade `{}`",
            helper
        );
        assert!(
            glagol_random.contains(&format!("(fn {} ", helper)),
            "Glagol local random fixture is missing exp-38 facade `{}`",
            helper
        );
    }

    let local_env = repo.join("examples/projects/std-layout-local-env/src/env.slo");
    let local_env_string = repo.join("examples/projects/std-layout-local-env/src/string.slo");
    let slovo_env = read(&std_dir.join("env.slo"));
    let glagol_env = read(&local_env);
    let glagol_env_string = read(&local_env_string);
    assert!(
        slovo_env.contains("(module env") && glagol_env.contains("(module env"),
        "both Slovo std/env.slo and the Glagol local fixture should use explicit `env` module source shape"
    );
    assert!(
        slovo_env.contains("(std.env.get name)")
            && slovo_env.contains("(std.env.get_result name)")
            && slovo_env.contains(
                "(import std.result (ok_or_none_string ok_or_none_i32 ok_or_none_u32 ok_or_none_i64 ok_or_none_u64 ok_or_none_f64 ok_or_none_bool))",
            )
            && slovo_env.contains("(std.string.parse_i32_result text)")
            && slovo_env.contains("(std.string.parse_u32_result text)")
            && slovo_env.contains("(std.string.parse_i64_result text)")
            && slovo_env.contains("(std.string.parse_u64_result text)")
            && slovo_env.contains("(std.string.parse_f64_result text)")
            && slovo_env.contains("(std.string.parse_bool_result text)")
            && glagol_env.contains(
                "(import result (ok_or_none_string ok_or_none_i32 ok_or_none_u32 ok_or_none_i64 ok_or_none_u64 ok_or_none_f64 ok_or_none_bool))",
            )
            && glagol_env.contains("(import string (parse_i32_result parse_u32_result parse_i64_result parse_u64_result parse_f64_result parse_bool_result))")
            && glagol_env.contains("(std.env.get name)")
            && glagol_env.contains("(std.env.get_result name)")
            && glagol_env_string.starts_with("(module string (export ")
            && glagol_env_string.contains(
                "(import result (ok_or_none_i32 ok_or_none_u32 ok_or_none_i64 ok_or_none_u64 ok_or_none_f64 ok_or_none_bool))",
            ),
        "exp-65 standard env facade must stay backed by the existing promoted env and parse result calls"
    );
    assert_std_only_contains(
        &slovo_env,
        &[
            "std.env.get_result",
            "std.env.get",
            "std.result",
            "std.string.parse_i32_result",
            "std.string.parse_u32_result",
            "std.string.parse_i64_result",
            "std.string.parse_u64_result",
            "std.string.parse_f64_result",
            "std.string.parse_bool_result",
        ],
        "Slovo std/env.slo must not introduce other compiler-known std names",
    );
    assert_std_only_contains(
        &glagol_env,
        &["std.env.get_result", "std.env.get"],
        "Glagol local env fixture must not introduce direct compiler-known std names beyond env lookup",
    );
    assert_std_only_contains(
        &glagol_env_string,
        &[
            "std.string.len",
            "std.string.concat",
            "std.string.parse_i32_result",
            "std.string.parse_u32_result",
            "std.string.parse_i64_result",
            "std.string.parse_u64_result",
            "std.string.parse_f64_result",
            "std.string.parse_bool_result",
        ],
        "Glagol local env string fixture must not introduce other compiler-known std names",
    );
    assert!(
        !slovo_env.contains("set")
            && !glagol_env.contains("set")
            && !slovo_env.contains("unset")
            && !glagol_env.contains("unset")
            && !slovo_env.contains("enumer")
            && !glagol_env.contains("enumer")
            && !slovo_env.contains("platform")
            && !glagol_env.contains("platform")
            && !slovo_env.contains("host_error")
            && !glagol_env.contains("host_error")
            && !slovo_env.contains("errno")
            && !glagol_env.contains("errno"),
        "exp-65 standard env facade must not claim deferred env APIs or rich host errors"
    );
    for helper in STANDARD_ENV_SOURCE_FACADE_ALPHA {
        assert!(
            slovo_env.contains(&format!("(fn {} ", helper)),
            "Slovo std/env.slo is missing exp-65 facade `{}`",
            helper
        );
        assert!(
            glagol_env.contains(&format!("(fn {} ", helper)),
            "Glagol local env fixture is missing exp-65 facade `{}`",
            helper
        );
    }

    let local_fs = repo.join("examples/projects/std-layout-local-fs/src/fs.slo");
    let local_fs_string = repo.join("examples/projects/std-layout-local-fs/src/string.slo");
    let slovo_fs = read(&std_dir.join("fs.slo"));
    let glagol_fs = read(&local_fs);
    let glagol_fs_string = read(&local_fs_string);
    assert!(
        slovo_fs.contains("(module fs") && glagol_fs.contains("(module fs"),
        "both Slovo std/fs.slo and the Glagol local fixture should use explicit `fs` module source shape"
    );
    assert!(
        slovo_fs.contains("(std.fs.read_text path)")
            && slovo_fs.contains("(std.fs.read_text_result path)")
            && slovo_fs.contains("(std.fs.write_text path text)")
            && slovo_fs.contains("(std.fs.write_text_result path text)")
            && slovo_fs.contains("(std.fs.exists path)")
            && slovo_fs.contains("(std.fs.is_file path)")
            && slovo_fs.contains("(std.fs.is_dir path)")
            && slovo_fs.contains("(std.fs.remove_file_result path)")
            && slovo_fs.contains("(std.fs.create_dir_result path)")
            && slovo_fs.contains("(std.fs.open_text_read_result path)")
            && slovo_fs.contains("(std.fs.read_open_text_result handle)")
            && slovo_fs.contains("(std.fs.close_result handle)")
            && slovo_fs.contains(
                "(import std.result (ok_or_none_string ok_or_none_i32 ok_or_none_u32 ok_or_none_i64 ok_or_none_u64 ok_or_none_f64 ok_or_none_bool))",
            )
            && slovo_fs.contains("(std.string.parse_i32_result text)")
            && slovo_fs.contains("(std.string.parse_u32_result text)")
            && slovo_fs.contains("(std.string.parse_i64_result text)")
            && slovo_fs.contains("(std.string.parse_u64_result text)")
            && slovo_fs.contains("(std.string.parse_f64_result text)")
            && slovo_fs.contains("(std.string.parse_bool_result text)")
            && glagol_fs.contains(
                "(import result (ok_or_none_string ok_or_none_i32 ok_or_none_u32 ok_or_none_i64 ok_or_none_u64 ok_or_none_f64 ok_or_none_bool))",
            )
            && glagol_fs.contains("(import string (parse_i32_result parse_u32_result parse_i64_result parse_u64_result parse_f64_result parse_bool_result))")
            && glagol_fs.contains("(std.fs.read_text path)")
            && glagol_fs.contains("(std.fs.read_text_result path)")
            && glagol_fs.contains("(std.fs.write_text path text)")
            && glagol_fs.contains("(std.fs.write_text_result path text)")
            && glagol_fs.contains("(std.fs.exists path)")
            && glagol_fs.contains("(std.fs.is_file path)")
            && glagol_fs.contains("(std.fs.is_dir path)")
            && glagol_fs.contains("(std.fs.remove_file_result path)")
            && glagol_fs.contains("(std.fs.create_dir_result path)")
            && glagol_fs.contains("(std.fs.open_text_read_result path)")
            && glagol_fs.contains("(std.fs.read_open_text_result handle)")
            && glagol_fs.contains("(std.fs.close_result handle)")
            && glagol_fs_string.starts_with("(module string (export ")
            && glagol_fs_string.contains(
                "(import result (ok_or_none_i32 ok_or_none_u32 ok_or_none_i64 ok_or_none_u64 ok_or_none_f64 ok_or_none_bool))",
            ),
        "exp-66 standard fs facade must stay backed by the existing promoted fs and parse result calls"
    );
    assert_std_only_contains(
        &slovo_fs,
        &[
            "std.fs.read_text_result",
            "std.fs.write_text_result",
            "std.fs.read_text",
            "std.fs.write_text",
            "std.fs.exists",
            "std.fs.is_file",
            "std.fs.is_dir",
            "std.fs.remove_file_result",
            "std.fs.create_dir_result",
            "std.fs.open_text_read_result",
            "std.fs.read_open_text_result",
            "std.fs.close_result",
            "std.result",
            "std.string.parse_i32_result",
            "std.string.parse_u32_result",
            "std.string.parse_i64_result",
            "std.string.parse_u64_result",
            "std.string.parse_f64_result",
            "std.string.parse_bool_result",
        ],
        "Slovo std/fs.slo must not introduce other compiler-known std names",
    );
    assert_std_only_contains(
        &glagol_fs,
        &[
            "std.fs.read_text_result",
            "std.fs.write_text_result",
            "std.fs.read_text",
            "std.fs.write_text",
            "std.fs.exists",
            "std.fs.is_file",
            "std.fs.is_dir",
            "std.fs.remove_file_result",
            "std.fs.create_dir_result",
            "std.fs.open_text_read_result",
            "std.fs.read_open_text_result",
            "std.fs.close_result",
        ],
        "Glagol local fs fixture must not introduce direct compiler-known std names beyond fs text calls",
    );
    assert_std_only_contains(
        &glagol_fs_string,
        &[
            "std.string.len",
            "std.string.concat",
            "std.string.parse_i32_result",
            "std.string.parse_u32_result",
            "std.string.parse_i64_result",
            "std.string.parse_u64_result",
            "std.string.parse_f64_result",
            "std.string.parse_bool_result",
        ],
        "Glagol local fs string fixture must not introduce other compiler-known std names",
    );
    for source in [&slovo_fs, &glagol_fs, &glagol_fs_string] {
        assert!(
            !source.contains("binary")
                && !source.contains("list_dir")
                && !source.contains("walk")
                && !source.contains("stream")
                && !source.contains("async")
                && !source.contains("host_error"),
            "exp-66 standard fs facade must not claim deferred fs APIs or rich host errors"
        );
    }
    for helper in STANDARD_FS_SOURCE_FACADE_ALPHA {
        assert!(
            slovo_fs.contains(&format!("(fn {} ", helper)),
            "Slovo std/fs.slo is missing exp-66 facade `{}`",
            helper
        );
        assert!(
            glagol_fs.contains(&format!("(fn {} ", helper)),
            "Glagol local fs fixture is missing exp-66 facade `{}`",
            helper
        );
    }

    let local_net = repo.join("examples/projects/std-layout-local-net/src/net.slo");
    let slovo_net = read(&std_dir.join("net.slo"));
    let glagol_net = read(&local_net);
    assert!(
        slovo_net.contains("(module net") && glagol_net.contains("(module net"),
        "both Slovo std/net.slo and the Glagol local fixture should use explicit `net` module source shape"
    );
    for runtime_name in STANDARD_NET_RUNTIME_NAMES {
        assert!(
            slovo_net.contains(runtime_name) && glagol_net.contains(runtime_name),
            "standard net facade must stay backed by `{}`",
            runtime_name
        );
    }
    assert_std_only_contains(
        &slovo_net,
        STANDARD_NET_RUNTIME_NAMES,
        "Slovo std/net.slo must not introduce other compiler-known std names",
    );
    assert_std_only_contains(
        &glagol_net,
        STANDARD_NET_RUNTIME_NAMES,
        "Glagol local net fixture must not introduce other compiler-known std names",
    );
    for source in [&slovo_net, &glagol_net] {
        assert!(
            !source.contains("dns")
                && !source.contains("tls")
                && !source.contains("udp")
                && !source.contains("async")
                && !source.contains("http")
                && !source.contains("timeout")
                && !source.contains("non_loopback")
                && !source.contains("host_error"),
            "standard net facade must not claim deferred networking policies"
        );
    }
    for helper in STANDARD_NET_SOURCE_FACADE_ALPHA {
        assert!(
            slovo_net.contains(&format!("(fn {} ", helper)),
            "Slovo std/net.slo is missing beta6 facade `{}`",
            helper
        );
        assert!(
            glagol_net.contains(&format!("(fn {} ", helper)),
            "Glagol local net fixture is missing beta6 facade `{}`",
            helper
        );
    }

    let local_json = repo.join("examples/projects/std-layout-local-json/src/json.slo");
    let slovo_json = read(&std_dir.join("json.slo"));
    let glagol_json = read(&local_json);
    assert!(
        slovo_json.contains("(module json") && glagol_json.contains("(module json"),
        "both Slovo std/json.slo and the Glagol local fixture should use explicit `json` module source shape"
    );
    for runtime_name in STANDARD_JSON_RUNTIME_NAMES {
        assert!(
            slovo_json.contains(runtime_name) && glagol_json.contains(runtime_name),
            "standard json facade must stay backed by `{}`",
            runtime_name
        );
    }
    assert_std_only_contains(
        &slovo_json,
        STANDARD_JSON_RUNTIME_NAMES,
        "Slovo std/json.slo must not introduce other compiler-known std names",
    );
    assert_std_only_contains(
        &glagol_json,
        STANDARD_JSON_RUNTIME_NAMES,
        "Glagol local json fixture must not introduce other compiler-known std names",
    );
    for source in [&slovo_json, &glagol_json] {
        assert_deferred_json_surface_absent(source, "standard json facade");
    }
    for helper in STANDARD_JSON_SOURCE_FACADE_ALPHA {
        assert!(
            slovo_json.contains(&format!("(fn {} ", helper)),
            "Slovo std/json.slo is missing beta7 facade `{}`",
            helper
        );
        assert!(
            glagol_json.contains(&format!("(fn {} ", helper)),
            "Glagol local json fixture is missing beta7 facade `{}`",
            helper
        );
    }
}

fn assert_source_shaped_file(path: &Path) {
    let source = read(path);
    assert!(
        source.ends_with('\n'),
        "`{}` must end with a final newline",
        path.display()
    );
    assert!(
        !source.contains('\t'),
        "`{}` must use spaces, not tabs",
        path.display()
    );
    assert!(
        !source
            .lines()
            .any(|line| line.ends_with(' ') || line.ends_with('\t')),
        "`{}` must not contain trailing whitespace",
        path.display()
    );
}

fn assert_source_eq(left: &Path, right: &Path) {
    let left_source = read(left);
    let right_source = read(right);

    assert_eq!(
        left_source,
        right_source,
        "`{}` and `{}` must stay byte-for-byte aligned",
        left.display(),
        right.display()
    );
}

fn assert_same_supported_body(supported: &Path, formatter: &Path) {
    let supported_body = strip_leading_comments_and_blank_lines(&read(supported));
    let formatter_body = strip_leading_comments_and_blank_lines(&read(formatter));

    assert_eq!(
        supported_body, formatter_body,
        "formatter canonical body must remain the same current supported program"
    );
}

fn assert_formatter_fixture_contract(path: &Path) {
    let source = read(path);

    assert!(
        source.starts_with("; status: formatter-canonical\n"),
        "`{}` must declare formatter-only status",
        path.display()
    );
    assert!(
        source.ends_with('\n'),
        "`{}` must end with a final newline",
        path.display()
    );
    assert!(
        !source
            .lines()
            .any(|line| line.ends_with(' ') || line.ends_with('\t')),
        "`{}` must not contain trailing whitespace",
        path.display()
    );
    assert!(
        !source.contains('\t'),
        "`{}` must use spaces, not tabs",
        path.display()
    );

    let code = strip_comments(&source);
    let forbidden_forms = [
        "if", "let", "var", "set", "while", "struct", "test", "unsafe", "string", "array", "slice",
        "option", "result", "ptr",
    ];

    for form in forbidden_forms {
        assert!(
            !contains_word(&code, form),
            "formatter canonical fixture contains a form outside the supported add fixture surface: `{}`",
            form
        );
    }
    assert!(
        !code.contains('"'),
        "formatter canonical fixture must not contain string literals"
    );
}

fn assert_compiler_output_matches_supported_add_shape(repo: &Path, fixture: &Path) {
    let expected = read(&repo.join("tests/add.expected.ll"));
    let output = run_glagol([fixture.as_os_str()]);
    let stdout = String::from_utf8_lossy(&output.stdout);
    let stderr = String::from_utf8_lossy(&output.stderr);

    assert!(
        output.status.success(),
        "compiler rejected supported add fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stderr.is_empty(),
        "compiler wrote stderr for accepted add fixture:\n{}",
        stderr
    );
    assert!(
        !stdout.contains("panicked at") && !stderr.contains("panicked at"),
        "compiler panicked for supported add fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );

    for required in required_llvm_shapes(&expected) {
        assert!(
            stdout.contains(required),
            "LLVM output did not contain expected shape `{}`\nstdout:\n{}",
            required,
            stdout
        );
    }
}

fn assert_tree_printer_matches_fixture(repo: &Path, fixture: &Path) {
    let expected = read(&repo.join("tests/add.sexpr"));
    let output = run_glagol([OsStr::new("--print-tree"), fixture.as_os_str()]);
    let stdout = String::from_utf8_lossy(&output.stdout);
    let stderr = String::from_utf8_lossy(&output.stderr);

    assert!(
        output.status.success(),
        "tree printer rejected supported add fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert_eq!(stdout, expected, "tree printer fixture drifted");
    assert!(
        stderr.is_empty(),
        "tree printer wrote stderr for accepted add fixture:\n{}",
        stderr
    );
}

fn assert_formatter_matches_fixture(fixture: &Path) {
    let expected = read(fixture);
    let output = run_glagol([OsStr::new("--format"), fixture.as_os_str()]);
    let stdout = String::from_utf8_lossy(&output.stdout);
    let stderr = String::from_utf8_lossy(&output.stderr);

    assert!(
        output.status.success(),
        "formatter rejected supported fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert_eq!(stdout, expected, "formatter fixture drifted");
    assert!(
        stderr.is_empty(),
        "formatter wrote stderr for accepted fixture:\n{}",
        stderr
    );
}

fn assert_lowering_inspector_matches_fixture(
    repo: &Path,
    fixture: &Path,
    mode: &str,
    snapshot: &str,
) {
    let expected = read(&repo.join("tests").join(snapshot));
    let output = run_glagol([OsStr::new(mode), fixture.as_os_str()]);
    let stdout = String::from_utf8_lossy(&output.stdout);
    let stderr = String::from_utf8_lossy(&output.stderr);

    assert!(
        output.status.success(),
        "lowering inspector `{}` rejected supported fixture\nstdout:\n{}\nstderr:\n{}",
        mode,
        stdout,
        stderr
    );
    assert_eq!(
        stdout, expected,
        "lowering inspector `{}` fixture drifted",
        mode
    );
    assert!(
        stderr.is_empty(),
        "lowering inspector `{}` wrote stderr for accepted fixture:\n{}",
        mode,
        stderr
    );
}

fn assert_lowering_inspector_matrix_matches_fixtures(repo: &Path) {
    for case in LOWERING_INSPECTOR_CASES {
        let source = repo.join(case.source);
        assert_lowering_inspector_matches_fixture(
            repo,
            &source,
            "--inspect-lowering=surface",
            case.surface_snapshot,
        );
        assert_lowering_inspector_matches_fixture(
            repo,
            &source,
            "--inspect-lowering=checked",
            case.checked_snapshot,
        );
    }
}

fn assert_top_level_test_tooling_matches_fixtures(repo: &Path) {
    let fixture = repo.join("tests/top-level-test.slo");

    let expected_tree = read(&repo.join("tests/top-level-test.sexpr"));
    let tree = run_glagol([OsStr::new("--print-tree"), fixture.as_os_str()]);
    assert_success_stdout(tree, &expected_tree, "top-level test tree fixture");

    assert_lowering_inspector_matches_fixture(
        repo,
        &fixture,
        "--inspect-lowering=surface",
        "top-level-test.surface.lower",
    );
    assert_lowering_inspector_matches_fixture(
        repo,
        &fixture,
        "--inspect-lowering=checked",
        "top-level-test.checked.lower",
    );

    let checked = run_glagol([OsStr::new("--check-tests"), fixture.as_os_str()]);
    assert_success_stdout(
        checked,
        "test \"add works\" ... checked\n1 test(s) checked\n",
        "top-level test checker output",
    );

    let run = run_glagol([OsStr::new("--run-tests"), fixture.as_os_str()]);
    assert_success_stdout(
        run,
        "test \"add works\" ... ok\n1 test(s) passed\n",
        "top-level test runner output",
    );

    let compile = run_glagol([fixture.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "compiler rejected top-level test fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define i32 @add") && stdout.contains("define i32 @main"),
        "compiler output for top-level test fixture lost function emission\nstdout:\n{}",
        stdout
    );
    assert!(
        !stdout.contains("add works"),
        "compiler output should not emit top-level test names as LLVM metadata\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "compiler wrote stderr for top-level test fixture:\n{}",
        stderr
    );
}

fn assert_array_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "compiler rejected array fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define i32 @immediate_second()")
            && stdout.contains("insertvalue [3 x i32]")
            && stdout.contains("extractvalue [3 x i32]")
            && stdout.contains("%values.addr = alloca [3 x i32]")
            && stdout.contains("getelementptr inbounds [3 x i32]")
            && stdout.contains("load i32"),
        "compiler output for array fixture lost index shape\nstdout:\n{}",
        stdout
    );
    assert!(
        !stdout.contains("immediate array index") && !stdout.contains("array local index"),
        "compiler output should not emit top-level test names as LLVM metadata\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "compiler wrote stderr for array fixture:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"immediate array index\" ... ok\n",
            "test \"array local index\" ... ok\n",
            "2 test(s) passed\n",
        ),
        "array test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(format, &expected_format, "array formatter output");
}

fn assert_array_direct_scalars_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "compiler rejected direct-scalar array fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define i32 @i32_second()")
            && stdout.contains("define i64 @i64_local_pick()")
            && stdout.contains("define double @f64_third()")
            && stdout.contains("define i1 @bool_local_pick()")
            && stdout.contains("insertvalue [3 x i32]")
            && stdout.contains("insertvalue [3 x double]")
            && stdout.contains("alloca [3 x i64]")
            && stdout.contains("alloca [3 x i1]"),
        "compiler output for direct-scalar array fixture lost widened array shape\nstdout:\n{}",
        stdout
    );
    assert!(
        !stdout.contains("i32 direct scalar array index")
            && !stdout.contains("bool local direct scalar array index"),
        "compiler output should not emit top-level test names as LLVM metadata\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "compiler wrote stderr for direct-scalar array fixture:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"i32 direct scalar array index\" ... ok\n",
            "test \"i64 local direct scalar array index\" ... ok\n",
            "test \"f64 direct scalar array index\" ... ok\n",
            "test \"bool local direct scalar array index\" ... ok\n",
            "4 test(s) passed\n",
        ),
        "direct-scalar array test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(
        format,
        &expected_format,
        "direct-scalar array formatter output",
    );
}

fn assert_array_string_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "compiler rejected string-array fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define ptr @immediate_second()")
            && stdout.contains("define ptr @local_pick()")
            && stdout.contains("insertvalue [3 x ptr]")
            && stdout.contains("alloca [3 x ptr]"),
        "compiler output for string-array fixture lost widened array shape\nstdout:\n{}",
        stdout
    );
    assert!(
        !stdout.contains("string immediate array index")
            && !stdout.contains("string local array index"),
        "compiler output should not emit top-level test names as LLVM metadata\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "compiler wrote stderr for string-array fixture:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"string immediate array index\" ... ok\n",
            "test \"string local array index\" ... ok\n",
            "2 test(s) passed\n",
        ),
        "string-array test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(format, &expected_format, "string-array formatter output");
}

fn assert_array_value_flow_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "compiler rejected array value-flow fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define [3 x i32] @make_values(i32 %base)")
            && stdout.contains("define i32 @at([3 x i32] %values, i32 %i)")
            && stdout.contains("define i32 @parameter_local_copy([3 x i32] %values, i32 %i)")
            && stdout.contains("call [3 x i32] @make_values(i32 20)")
            && stdout.contains("call i32 @at([3 x i32]")
            && stdout.contains("call void @__glagol_array_bounds_trap()")
            && stdout.contains("array.index.trap")
            && stdout.contains("getelementptr inbounds [3 x i32]"),
        "compiler output for array value-flow fixture lost value-flow or bounds-check shape\nstdout:\n{}",
        stdout
    );
    assert!(
        !stdout.contains("array parameter value flow")
            && !stdout.contains("array dynamic index")
            && !stdout.contains("array parameter local copy"),
        "compiler output should not emit top-level test names as LLVM metadata\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "compiler wrote stderr for array value-flow fixture:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"array parameter value flow\" ... ok\n",
            "test \"array dynamic index\" ... ok\n",
            "test \"array local call value flow\" ... ok\n",
            "test \"array parameter local copy\" ... ok\n",
            "test \"array return call value flow\" ... ok\n",
            "5 test(s) passed\n",
        ),
        "array value-flow test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(
        format,
        &expected_format,
        "array value-flow formatter output",
    );
}

fn assert_array_direct_scalars_value_flow_tooling_matches_fixtures(
    example: &Path,
    formatter_fixture: &Path,
) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "compiler rejected direct-scalar array value-flow fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define [3 x i32] @make_i32_values(i32 %base)")
            && stdout.contains("define [3 x i64] @make_i64_values(i64 %base)")
            && stdout.contains("define [3 x double] @make_f64_values(double %base)")
            && stdout.contains("define [3 x i1] @make_flags(i1 %first)")
            && stdout.contains("define i64 @i64_at([3 x i64] %values, i32 %i)")
            && stdout.contains("define double @f64_at([3 x double] %values, i32 %i)")
            && stdout.contains("define [3 x i1] @echo_flags([3 x i1] %values)")
            && stdout.contains("call void @__glagol_array_bounds_trap()")
            && stdout.contains("array.index.trap")
            && stdout.contains("getelementptr inbounds [3 x i64]")
            && stdout.contains("getelementptr inbounds [3 x double]"),
        "compiler output for direct-scalar array value-flow fixture lost value-flow or bounds-check shape\nstdout:\n{}",
        stdout
    );
    assert!(
        !stdout.contains("i64 array local call value flow")
            && !stdout.contains("bool array dynamic index"),
        "compiler output should not emit top-level test names as LLVM metadata\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "compiler wrote stderr for direct-scalar array value-flow fixture:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"i32 array parameter value flow\" ... ok\n",
            "test \"i64 array local call value flow\" ... ok\n",
            "test \"f64 array parameter local copy\" ... ok\n",
            "test \"bool array dynamic index\" ... ok\n",
            "test \"bool array return call value flow\" ... ok\n",
            "5 test(s) passed\n",
        ),
        "direct-scalar array value-flow test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(
        format,
        &expected_format,
        "direct-scalar array value-flow formatter output",
    );
}

fn assert_array_string_value_flow_tooling_matches_fixtures(
    example: &Path,
    formatter_fixture: &Path,
) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "compiler rejected string-array value-flow fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define [3 x ptr] @make_words(ptr %head)")
            && stdout.contains("define ptr @at([3 x ptr] %values, i32 %i)")
            && stdout.contains("define [3 x ptr] @echo([3 x ptr] %values)")
            && stdout.contains("call void @__glagol_array_bounds_trap()")
            && stdout.contains("array.index.trap")
            && stdout.contains("getelementptr inbounds [3 x ptr]"),
        "compiler output for string-array value-flow fixture lost value-flow or bounds-check shape\nstdout:\n{}",
        stdout
    );
    assert!(
        !stdout.contains("string array local call value flow")
            && !stdout.contains("string array dynamic index"),
        "compiler output should not emit top-level test names as LLVM metadata\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "compiler wrote stderr for string-array value-flow fixture:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"string array parameter value flow\" ... ok\n",
            "test \"string array dynamic index\" ... ok\n",
            "test \"string array local call value flow\" ... ok\n",
            "test \"string array parameter local copy\" ... ok\n",
            "test \"string array return call value flow\" ... ok\n",
            "5 test(s) passed\n",
        ),
        "string-array value-flow test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(
        format,
        &expected_format,
        "string-array value-flow formatter output",
    );
}

fn assert_local_variable_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "compiler rejected local-variable fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define i32 @add_local")
            && stdout.contains("%total.addr = alloca i32")
            && stdout.contains("add i32 %a, 1")
            && stdout.contains("store i32")
            && stdout.contains("load i32")
            && stdout.contains("define i1 @keep_flag(i1 %flag)")
            && !stdout.contains("%local_flag.addr = alloca i1")
            && stdout.contains("define i1 @flip_flag(i1 %flag)")
            && stdout.contains("%current.addr = alloca i1")
            && stdout.contains("%count.addr = alloca i64")
            && stdout.contains("%amount.addr = alloca double"),
        "compiler output for local-variable fixture lost local value/storage shape\nstdout:\n{}",
        stdout
    );
    assert!(
        !stdout.contains("locals work")
            && !stdout.contains("bool let locals work")
            && !stdout.contains("bool let locals preserve false")
            && !stdout.contains("bool var set flips true")
            && !stdout.contains("bool var set flips false")
            && !stdout.contains("i64 var set works")
            && !stdout.contains("f64 var set works"),
        "compiler output should not emit top-level test names as LLVM metadata\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "compiler wrote stderr for local-variable fixture:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"locals work\" ... ok\n",
            "test \"bool let locals work\" ... ok\n",
            "test \"bool let locals preserve false\" ... ok\n",
            "test \"bool var set flips true\" ... ok\n",
            "test \"bool var set flips false\" ... ok\n",
            "test \"i64 var set works\" ... ok\n",
            "test \"f64 var set works\" ... ok\n",
            "7 test(s) passed\n",
        ),
        "local-variable test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(format, &expected_format, "local-variable formatter output");
}

fn assert_option_result_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "compiler rejected option/result fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define { i1, i32 } @maybe_value()")
            && stdout.contains("define { i1, i32 } @maybe_empty()")
            && stdout.contains("define { i1, i32 } @result_ok()")
            && stdout.contains("define { i1, i32 } @result_err()")
            && stdout.contains("insertvalue { i1, i32 } undef, i1 1, 0")
            && stdout.contains("insertvalue { i1, i32 } undef, i1 0, 0")
            && stdout.contains("ret { i1, i32 } %")
            && !stdout.contains("define ptr @maybe_value")
            && !stdout.contains("define ptr @result_ok"),
        "compiler output for option/result fixture lost aggregate shape\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "compiler wrote stderr for option/result fixture:\n{}",
        stderr
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(format, &expected_format, "option/result formatter output");
}

fn assert_option_result_flow_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "compiler rejected option/result flow fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define i32 @option_score({ i1, i32 } %value)")
            && stdout.contains("define i32 @option_wide_score({ i1, i64 } %value)")
            && stdout.contains("define i32 @option_string_score({ i1, ptr } %value)")
            && stdout.contains("define i32 @result_success_score({ i1, i32 } %value)")
            && stdout.contains("%value.addr = alloca { i1, i32 }")
            && stdout.contains("%value.addr = alloca { i1, ptr }")
            && stdout.contains("call { i1, i64 } @maybe_wide_value(i64 2147483648)")
            && stdout.contains("call { i1, i32 } @maybe_value(i32 42)")
            && stdout.contains("call { i1, ptr } @maybe_string_value(ptr @.str.")
            && stdout.contains("extractvalue { i1, i32 } %")
            && stdout.contains("extractvalue { i1, ptr } %")
            && stdout.contains("extractvalue { i1, i64 } %")
            && stdout.contains("xor i1 %"),
        "compiler output for option/result flow fixture lost value-flow shape\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "compiler wrote stderr for option/result flow fixture:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"option local value flow\" ... ok\n",
            "test \"option call observation\" ... ok\n",
            "test \"option i64 local value flow\" ... ok\n",
            "test \"option i64 call observation\" ... ok\n",
            "test \"option f64 local value flow\" ... ok\n",
            "test \"option f64 call observation\" ... ok\n",
            "test \"option bool local value flow\" ... ok\n",
            "test \"option bool call observation\" ... ok\n",
            "test \"option string local value flow\" ... ok\n",
            "test \"option string call observation\" ... ok\n",
            "test \"result call observation\" ... ok\n",
            "test \"result local value flow\" ... ok\n",
            "12 test(s) passed\n",
        ),
        "option/result flow test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(
        format,
        &expected_format,
        "option/result flow formatter output",
    );
}

fn assert_option_result_match_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "compiler rejected option/result match fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define i32 @option_value_or({ i1, i32 } %value, i32 %fallback)")
            && stdout.contains("define i32 @option_bump_or_zero({ i1, i32 } %value)")
            && stdout
                .contains("define ptr @option_string_value_or({ i1, ptr } %value, ptr %fallback)")
            && stdout.contains(
                "define ptr @option_string_selected_or({ i1, ptr } %value, ptr %fallback)"
            )
            && stdout.contains("define i32 @result_value_or_code({ i1, i32 } %value)")
            && stdout.contains("define i32 @result_score({ i1, i32 } %value)")
            && stdout.contains("match.some")
            && stdout.contains("match.none")
            && stdout.contains("match.ok")
            && stdout.contains("match.err")
            && stdout.contains(" phi i32 ")
            && stdout.contains(" phi ptr "),
        "compiler output for option/result match fixture lost branch shape\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "compiler wrote stderr for option/result match fixture:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"option match some payload\" ... ok\n",
            "test \"option match none fallback\" ... ok\n",
            "test \"option match multi expression arm\" ... ok\n",
            "test \"option i64 match some payload\" ... ok\n",
            "test \"option i64 match none fallback\" ... ok\n",
            "test \"option i64 match multi expression arm\" ... ok\n",
            "test \"option f64 match some payload\" ... ok\n",
            "test \"option f64 match none fallback\" ... ok\n",
            "test \"option f64 match multi expression arm\" ... ok\n",
            "test \"option bool match some payload\" ... ok\n",
            "test \"option bool match none fallback\" ... ok\n",
            "test \"option bool match multi expression arm\" ... ok\n",
            "test \"option string match some payload\" ... ok\n",
            "test \"option string match none fallback\" ... ok\n",
            "test \"option string match multi expression arm\" ... ok\n",
            "test \"result match ok payload\" ... ok\n",
            "test \"result match err payload\" ... ok\n",
            "test \"result match computed arm\" ... ok\n",
            "18 test(s) passed\n",
        ),
        "option/result match test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(
        format,
        &expected_format,
        "option/result match formatter output",
    );
}

fn assert_option_result_payload_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "compiler rejected option/result payload fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define i32 @option_direct_payload()")
            && stdout.contains("define i32 @option_param_payload({ i1, i32 } %value)")
            && stdout.contains("define i32 @option_local_payload()")
            && stdout.contains("define i32 @option_call_payload()")
            && stdout.contains("define i32 @option_guarded_payload({ i1, i32 } %value)")
            && stdout.contains("define i32 @result_ok_direct_payload()")
            && stdout.contains("define i32 @result_err_direct_payload()")
            && stdout.contains("define i32 @result_ok_param_payload({ i1, i32 } %value)")
            && stdout.contains("define i32 @result_err_param_payload({ i1, i32 } %value)")
            && stdout.contains("define i32 @result_ok_local_payload()")
            && stdout.contains("define i32 @result_err_call_payload()")
            && stdout.contains("call void @__glagol_unwrap_some_trap()")
            && stdout.contains("call void @__glagol_unwrap_ok_trap()")
            && stdout.contains("call void @__glagol_unwrap_err_trap()")
            && stdout.contains("unwrap.trap")
            && stdout.contains("if.then")
            && stdout.contains(" phi i32 ")
            && stdout.contains("extractvalue { i1, i32 } %"),
        "compiler output for option/result payload fixture lost payload-access shape\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "compiler wrote stderr for option/result payload fixture:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"unwrap some direct constructor\" ... ok\n",
            "test \"unwrap some local\" ... ok\n",
            "test \"unwrap some call\" ... ok\n",
            "test \"unwrap some parameter\" ... ok\n",
            "test \"guarded unwrap some present\" ... ok\n",
            "test \"guarded unwrap some absent\" ... ok\n",
            "test \"unwrap some i64 direct constructor\" ... ok\n",
            "test \"unwrap some i64 local\" ... ok\n",
            "test \"unwrap some i64 call\" ... ok\n",
            "test \"unwrap some i64 parameter\" ... ok\n",
            "test \"guarded unwrap some i64 present\" ... ok\n",
            "test \"guarded unwrap some i64 absent\" ... ok\n",
            "test \"unwrap some f64 direct constructor\" ... ok\n",
            "test \"unwrap some f64 local\" ... ok\n",
            "test \"unwrap some f64 call\" ... ok\n",
            "test \"unwrap some f64 parameter\" ... ok\n",
            "test \"guarded unwrap some f64 present\" ... ok\n",
            "test \"guarded unwrap some f64 absent\" ... ok\n",
            "test \"unwrap some bool direct constructor\" ... ok\n",
            "test \"unwrap some bool local\" ... ok\n",
            "test \"unwrap some bool call\" ... ok\n",
            "test \"unwrap some bool parameter\" ... ok\n",
            "test \"guarded unwrap some bool present\" ... ok\n",
            "test \"guarded unwrap some bool absent\" ... ok\n",
            "test \"unwrap some string direct constructor\" ... ok\n",
            "test \"unwrap some string local\" ... ok\n",
            "test \"unwrap some string call\" ... ok\n",
            "test \"unwrap some string parameter\" ... ok\n",
            "test \"guarded unwrap some string present\" ... ok\n",
            "test \"guarded unwrap some string absent\" ... ok\n",
            "test \"unwrap ok direct constructor\" ... ok\n",
            "test \"unwrap err direct constructor\" ... ok\n",
            "test \"unwrap ok parameter\" ... ok\n",
            "test \"unwrap err parameter\" ... ok\n",
            "test \"unwrap ok local\" ... ok\n",
            "test \"unwrap err call\" ... ok\n",
            "36 test(s) passed\n",
        ),
        "option/result payload test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(
        format,
        &expected_format,
        "option/result payload formatter output",
    );
}

fn assert_enum_struct_field_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "compiler rejected enum struct field fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define { i32, { i32, i32 } } @make_tagged")
            && stdout.contains("extractvalue { i32, { i32, i32 } }")
            && stdout.contains("switch i32")
            && stdout.contains("and i1"),
        "compiler output for enum struct field fixture lost aggregate/match shape\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "compiler wrote stderr for enum struct field fixture:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"enum struct field payloadless equality\" ... ok\n",
            "test \"enum struct field unary payload equality\" ... ok\n",
            "test \"enum struct field access return\" ... ok\n",
            "test \"enum struct field local param return call flow\" ... ok\n",
            "test \"enum struct field match missing\" ... ok\n",
            "test \"enum struct field status predicate\" ... ok\n",
            "6 test(s) passed\n",
        ),
        "enum struct field test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(
        format,
        &expected_format,
        "enum struct field formatter output",
    );
}

fn assert_primitive_struct_field_tooling_matches_fixtures(
    example: &Path,
    formatter_fixture: &Path,
) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "compiler rejected primitive struct field fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define { i32, i1, ptr } @make_record")
            && stdout.contains("insertvalue { i32, i1, ptr }")
            && stdout.contains("extractvalue { i32, i1, ptr }")
            && stdout.contains("call i1 @__glagol_string_eq")
            && stdout.contains("call i32 @string_len"),
        "compiler output for primitive struct field fixture lost aggregate/string shape\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "compiler wrote stderr for primitive struct field fixture:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"primitive struct i32 field access\" ... ok\n",
            "test \"primitive struct bool field predicate\" ... ok\n",
            "test \"primitive struct bool field false branch\" ... ok\n",
            "test \"primitive struct string field equality\" ... ok\n",
            "test \"primitive struct string field length\" ... ok\n",
            "test \"primitive struct local param return call flow\" ... ok\n",
            "test \"primitive struct string field access return\" ... ok\n",
            "7 test(s) passed\n",
        ),
        "primitive struct field test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(
        format,
        &expected_format,
        "primitive struct field formatter output",
    );
}

fn assert_numeric_struct_field_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "compiler rejected numeric struct field fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define { i64, double } @make_record")
            && stdout.contains("insertvalue { i64, double }")
            && stdout.contains("extractvalue { i64, double }")
            && stdout.contains("add i64")
            && stdout.contains("fadd double"),
        "compiler output for numeric struct field fixture lost aggregate/numeric shape\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "compiler wrote stderr for numeric struct field fixture:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"numeric struct i64 field access\" ... ok\n",
            "test \"numeric struct f64 field access\" ... ok\n",
            "test \"numeric struct i64 arithmetic after access\" ... ok\n",
            "test \"numeric struct f64 arithmetic after access\" ... ok\n",
            "test \"numeric struct i64 comparison after access\" ... ok\n",
            "test \"numeric struct f64 comparison after access\" ... ok\n",
            "test \"numeric struct local param return call flow\" ... ok\n",
            "test \"numeric struct i64 format after access\" ... ok\n",
            "test \"numeric struct f64 format after access\" ... ok\n",
            "9 test(s) passed\n",
        ),
        "numeric struct field test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(
        format,
        &expected_format,
        "numeric struct field formatter output",
    );
}

fn assert_string_print_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);

    assert!(
        compile.status.success(),
        "string-print fixture compile failed\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("declare void @print_string(ptr)")
            && stdout.contains(
                "@.str.0 = private unnamed_addr constant [6 x i8] c\"hello\\00\", align 1",
            )
            && stdout.contains(
                "@.str.1 = private unnamed_addr constant [22 x i8] c\"line\\0Aquote\\22slash\\5Ctab\\09\\00\", align 1",
            )
            && stdout.contains("call void @print_string(ptr @.str.0)")
            && stdout.contains("call void @print_string(ptr @.str.1)"),
        "string-print fixture LLVM shape drifted\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "string-print fixture compile wrote stderr:\n{}",
        stderr
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(format, &expected_format, "string-print formatter output");
}

fn assert_print_bool_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);

    assert!(
        compile.status.success(),
        "print-bool fixture compile failed\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("declare void @print_bool(i1)")
            && stdout.contains("declare i1 @__glagol_string_eq(ptr, ptr)")
            && stdout.contains("call void @print_bool(i1 1)")
            && stdout.contains("call void @print_bool(i1 0)")
            && stdout.contains("call i1 @__glagol_string_eq(ptr @.str.0, ptr @.str.0)"),
        "print-bool fixture LLVM shape drifted\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "print-bool fixture compile wrote stderr:\n{}",
        stderr
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(format, &expected_format, "print-bool formatter output");
}

fn assert_random_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);

    assert!(
        compile.status.success(),
        "random fixture compile failed\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("declare i32 @__glagol_random_i32()")
            && stdout.contains("call i32 @__glagol_random_i32()")
            && stdout.contains("declare void @print_bool(i1)")
            && !stdout.contains("@std.random"),
        "random fixture LLVM shape drifted\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "random fixture compile wrote stderr:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"random i32 is non-negative\" ... ok\n",
            "1 test(s) passed\n",
        ),
        "random test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(format, &expected_format, "random formatter output");
}

fn assert_stdin_result_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);

    assert!(
        compile.status.success(),
        "stdin-result fixture compile failed\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("declare ptr @__glagol_io_read_stdin_result()")
            && stdout.contains("call ptr @__glagol_io_read_stdin_result()")
            && !stdout.contains("@std.io.read_stdin_result"),
        "stdin-result fixture LLVM shape drifted\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "stdin-result fixture compile wrote stderr:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"stdin result test runner returns ok\" ... ok\n",
            "test \"stdin result payload length matches match\" ... ok\n",
            "test \"stdin result match observes ok payload\" ... ok\n",
            "3 test(s) passed\n",
        ),
        "stdin-result test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(format, &expected_format, "stdin-result formatter output");
}

fn assert_string_parse_i32_result_tooling_matches_fixtures(
    example: &Path,
    formatter_fixture: &Path,
) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);

    assert!(
        compile.status.success(),
        "string-parse-i32-result fixture compile failed\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("declare i64 @__glagol_string_parse_i32_result(ptr)")
            && stdout.contains("call i64 @__glagol_string_parse_i32_result(ptr ")
            && stdout.contains("declare ptr @__glagol_io_read_stdin_result()")
            && stdout.contains("call ptr @__glagol_io_read_stdin_result()")
            && stdout.contains("define { i1, i32 } @parse_text(ptr %text)")
            && stdout.contains("define { i1, i32 } @parse_stdin_text()")
            && stdout.contains("lshr i64")
            && stdout.contains("trunc i64")
            && stdout.contains("insertvalue { i1, i32 }")
            && !stdout.contains("@std.string.parse_i32_result"),
        "string-parse-i32-result fixture LLVM shape drifted\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "string-parse-i32-result fixture compile wrote stderr:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"parse 42 ok\" ... ok\n",
            "test \"parse negative 7 ok\" ... ok\n",
            "test \"parse empty err\" ... ok\n",
            "test \"parse trailing byte err\" ... ok\n",
            "test \"parse overflow err\" ... ok\n",
            "test \"parse stdin text structurally\" ... ok\n",
            "6 test(s) passed\n",
        ),
        "string-parse-i32-result test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(
        format,
        &expected_format,
        "string-parse-i32-result formatter output",
    );
}

fn assert_string_parse_i64_result_tooling_matches_fixtures(
    example: &Path,
    formatter_fixture: &Path,
) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);

    assert!(
        compile.status.success(),
        "string-parse-i64-result fixture compile failed\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("declare i32 @__glagol_string_parse_i64_result(ptr, ptr)")
            && stdout.contains("call i32 @__glagol_string_parse_i64_result(ptr ")
            && stdout.contains("define { i1, i64, i32 } @parse_i64(ptr %text)")
            && stdout.contains("alloca i64")
            && stdout.contains("insertvalue { i1, i64, i32 }")
            && stdout.contains("extractvalue { i1, i64, i32 }")
            && stdout.contains("call ptr @__glagol_num_i64_to_string(i64 ")
            && !stdout.contains("@std.string.parse_i64_result"),
        "string-parse-i64-result fixture LLVM shape drifted\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "string-parse-i64-result fixture compile wrote stderr:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"parse i64 zero ok\" ... ok\n",
            "test \"parse i64 negative ok\" ... ok\n",
            "test \"parse i64 low ok\" ... ok\n",
            "test \"parse i64 high ok\" ... ok\n",
            "test \"parse i64 empty err\" ... ok\n",
            "test \"parse i64 plus err\" ... ok\n",
            "test \"parse i64 above range err\" ... ok\n",
            "7 test(s) passed\n",
        ),
        "string-parse-i64-result test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(
        format,
        &expected_format,
        "string-parse-i64-result formatter output",
    );
}

fn assert_string_parse_f64_result_tooling_matches_fixtures(
    example: &Path,
    formatter_fixture: &Path,
) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);

    assert!(
        compile.status.success(),
        "string-parse-f64-result fixture compile failed\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("declare i32 @__glagol_string_parse_f64_result(ptr, ptr)")
            && stdout.contains("call i32 @__glagol_string_parse_f64_result(ptr ")
            && stdout.contains("define { i1, double, i32 } @parse_f64(ptr %text)")
            && stdout.contains("alloca double")
            && stdout.contains("insertvalue { i1, double, i32 }")
            && stdout.contains("extractvalue { i1, double, i32 }")
            && !stdout.contains("@std.string.parse_f64_result"),
        "string-parse-f64-result fixture LLVM shape drifted\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "string-parse-f64-result fixture compile wrote stderr:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"parse f64 decimal ok\" ... ok\n",
            "test \"parse f64 negative decimal ok\" ... ok\n",
            "test \"parse f64 text err\" ... ok\n",
            "test \"parse f64 nan err\" ... ok\n",
            "4 test(s) passed\n",
        ),
        "string-parse-f64-result test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(
        format,
        &expected_format,
        "string-parse-f64-result formatter output",
    );
}

fn assert_result_f64_bool_source_flow_matches_fixture(example: &Path) {
    let format = run_glagol([
        OsStr::new("fmt"),
        OsStr::new("--check"),
        example.as_os_str(),
    ]);
    assert_success_stdout(format, "", "result f64 bool source flow fmt --check");

    let check = run_glagol([OsStr::new("check"), example.as_os_str()]);
    assert_success_stdout(check, "", "result f64 bool source flow check");

    let test = run_glagol([OsStr::new("test"), example.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"result f64 ok constructor and match\" ... ok\n",
            "test \"result f64 err constructor and match\" ... ok\n",
            "test \"result bool ok constructor and match\" ... ok\n",
            "test \"result bool err constructor and match\" ... ok\n",
            "4 test(s) passed\n",
        ),
        "result f64 bool source flow test",
    );

    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "result f64 bool source flow compile failed\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("insertvalue { i1, double, i32 }")
            && stdout.contains("insertvalue { i1, i1, i32 }")
            && stdout.contains("extractvalue { i1, double, i32 }")
            && stdout.contains("extractvalue { i1, i1, i32 }"),
        "result f64 bool source flow LLVM shape drifted\nstdout:\n{}",
        stdout
    );
}

fn assert_integer_remainder_tooling_matches_fixture(example: &Path) {
    let format = run_glagol([
        OsStr::new("fmt"),
        OsStr::new("--check"),
        example.as_os_str(),
    ]);
    assert_success_stdout(format, "", "integer remainder fmt --check");

    let check = run_glagol([OsStr::new("check"), example.as_os_str()]);
    assert_success_stdout(check, "", "integer remainder check");

    let test = run_glagol([OsStr::new("test"), example.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"i32 remainder\" ... ok\n",
            "test \"i32 signed remainder\" ... ok\n",
            "test \"i64 remainder\" ... ok\n",
            "test \"i64 signed remainder\" ... ok\n",
            "test \"integer remainder summary\" ... ok\n",
            "5 test(s) passed\n",
        ),
        "integer remainder test",
    );

    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "integer remainder compile failed\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("srem i32") && stdout.contains("srem i64"),
        "integer remainder LLVM shape drifted\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "integer remainder compile wrote stderr:\n{}",
        stderr
    );
}

fn assert_boolean_logic_tooling_matches_fixture(example: &Path) {
    let format = run_glagol([
        OsStr::new("fmt"),
        OsStr::new("--check"),
        example.as_os_str(),
    ]);
    assert_success_stdout(format, "", "boolean logic fmt --check");

    let check = run_glagol([OsStr::new("check"), example.as_os_str()]);
    assert_success_stdout(check, "", "boolean logic check");

    let test = run_glagol([OsStr::new("test"), example.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"and true\" ... ok\n",
            "test \"and false\" ... ok\n",
            "test \"or true\" ... ok\n",
            "test \"not false\" ... ok\n",
            "test \"and short circuit\" ... ok\n",
            "test \"or short circuit\" ... ok\n",
            "test \"boolean logic summary\" ... ok\n",
            "7 test(s) passed\n",
        ),
        "boolean logic test",
    );

    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "boolean logic compile failed\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define i1 @and_true()")
            && stdout.contains("define i1 @and_short_circuits()")
            && stdout.contains("br i1"),
        "boolean logic LLVM shape drifted\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "boolean logic compile wrote stderr:\n{}",
        stderr
    );
}

fn assert_integer_bitwise_tooling_matches_fixture(example: &Path) {
    let format = run_glagol([
        OsStr::new("fmt"),
        OsStr::new("--check"),
        example.as_os_str(),
    ]);
    assert_success_stdout(format, "", "integer bitwise fmt --check");

    let check = run_glagol([OsStr::new("check"), example.as_os_str()]);
    assert_success_stdout(check, "", "integer bitwise check");

    let test = run_glagol([OsStr::new("test"), example.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"i32 bit and\" ... ok\n",
            "test \"i32 bit or\" ... ok\n",
            "test \"i32 bit xor\" ... ok\n",
            "test \"i64 bit and\" ... ok\n",
            "test \"i64 bit or\" ... ok\n",
            "test \"i64 bit xor\" ... ok\n",
            "test \"integer bitwise summary\" ... ok\n",
            "7 test(s) passed\n",
        ),
        "integer bitwise test",
    );

    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "integer bitwise compile failed\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("and i32")
            && stdout.contains("or i32")
            && stdout.contains("xor i32")
            && stdout.contains("and i64")
            && stdout.contains("or i64")
            && stdout.contains("xor i64"),
        "integer bitwise LLVM shape drifted\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "integer bitwise compile wrote stderr:\n{}",
        stderr
    );
}

fn assert_string_parse_bool_result_tooling_matches_fixtures(
    example: &Path,
    formatter_fixture: &Path,
) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);

    assert!(
        compile.status.success(),
        "string-parse-bool-result fixture compile failed\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("declare i32 @__glagol_string_parse_bool_result(ptr, ptr)")
            && stdout.contains("call i32 @__glagol_string_parse_bool_result(ptr ")
            && stdout.contains("define { i1, i1, i32 } @parse_bool(ptr %text)")
            && stdout.contains("define i32 @bool_score(ptr %text)")
            && stdout.contains("alloca i1")
            && stdout.contains("insertvalue { i1, i1, i32 }")
            && stdout.contains("extractvalue { i1, i1, i32 }")
            && !stdout.contains("@std.string.parse_bool_result"),
        "string-parse-bool-result fixture LLVM shape drifted\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "string-parse-bool-result fixture compile wrote stderr:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"parse bool true ok\" ... ok\n",
            "test \"parse bool false ok\" ... ok\n",
            "test \"parse bool uppercase err\" ... ok\n",
            "test \"parse bool empty err\" ... ok\n",
            "test \"parse bool whitespace err\" ... ok\n",
            "test \"parse bool helper flow\" ... ok\n",
            "6 test(s) passed\n",
        ),
        "string-parse-bool-result test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(
        format,
        &expected_format,
        "string-parse-bool-result formatter output",
    );
}

fn assert_f64_to_string_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);

    assert!(
        compile.status.success(),
        "f64-to-string fixture compile failed\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("declare ptr @__glagol_num_f64_to_string(double)")
            && stdout.contains("call ptr @__glagol_num_f64_to_string(double ")
            && stdout.contains("call void @print_string(ptr %")
            && !stdout.contains("@std.num.f64_to_string"),
        "f64-to-string fixture LLVM shape drifted\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "f64-to-string fixture compile wrote stderr:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"f64 zero to string\" ... ok\n",
            "test \"f64 fractional to string\" ... ok\n",
            "test \"f64 negative to string\" ... ok\n",
            "test \"f64 whole to string\" ... ok\n",
            "test \"f64 negative string length\" ... ok\n",
            "test \"f64 whole string length\" ... ok\n",
            "6 test(s) passed\n",
        ),
        "f64-to-string test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(format, &expected_format, "f64-to-string formatter output");
}

fn assert_f64_to_i32_result_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);

    assert!(
        compile.status.success(),
        "f64-to-i32-result fixture compile failed\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("fcmp oge double")
            && stdout.contains("fcmp ole double")
            && stdout.contains("f64.to_i32.integral")
            && stdout.contains("f64.to_i32.exponent")
            && stdout.contains("f64.to_i32.fraction")
            && stdout.contains("bitcast double")
            && stdout.contains("lshr i64")
            && stdout.contains("fptosi double")
            && !stdout.contains("frem double")
            && stdout.contains("phi { i1, i32 }")
            && !stdout.contains("@std.num.f64_to_i32_result")
            && !stdout.contains("__glagol_num_f64_to_i32_result"),
        "f64-to-i32-result fixture LLVM shape drifted\nstdout:\n{}",
        stdout
    );
    let integral_pos = stdout
        .find("f64.to_i32.integral")
        .expect("integral check block is present");
    let fraction_pos = stdout
        .find("f64.to_i32.fraction")
        .expect("fraction bit check block is present");
    let fptosi_pos = stdout
        .find("fptosi double")
        .expect("narrowing conversion is present");
    assert!(
        integral_pos < fraction_pos && fraction_pos < fptosi_pos,
        "f64-to-i32-result must prove integrality before fptosi\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "f64-to-i32-result fixture compile wrote stderr:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"f64 zero narrows to i32\" ... ok\n",
            "test \"negative f64 narrows to i32\" ... ok\n",
            "test \"fractional f64 returns err\" ... ok\n",
            "test \"above i32 range f64 returns err\" ... ok\n",
            "4 test(s) passed\n",
        ),
        "f64-to-i32-result test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(
        format,
        &expected_format,
        "f64-to-i32-result formatter output",
    );
}

fn assert_f64_to_i64_result_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);

    assert!(
        compile.status.success(),
        "f64-to-i64-result fixture compile failed\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("fcmp oge double")
            && stdout.contains("-9223372036854775808.0")
            && stdout.contains("fcmp olt double")
            && stdout.contains("9223372036854775808.0")
            && stdout.contains("f64.to_i64.integral")
            && stdout.contains("f64.to_i64.exponent")
            && stdout.contains("f64.to_i64.mantissa")
            && stdout.contains("f64.to_i64.fraction")
            && stdout.contains("bitcast double")
            && stdout.contains("lshr i64")
            && stdout.contains("fptosi double")
            && stdout.contains("to i64")
            && !stdout.contains("frem double")
            && stdout.contains("phi { i1, i64, i32 }")
            && !stdout.contains("@std.num.f64_to_i64_result")
            && !stdout.contains("__glagol_num_f64_to_i64_result"),
        "f64-to-i64-result fixture LLVM shape drifted\nstdout:\n{}",
        stdout
    );
    let integral_pos = stdout
        .find("f64.to_i64.integral")
        .expect("integral check block is present");
    let fraction_pos = stdout
        .find("f64.to_i64.fraction")
        .expect("fraction bit check block is present");
    let fptosi_pos = stdout
        .find("fptosi double")
        .expect("narrowing conversion is present");
    assert!(
        integral_pos < fraction_pos && fraction_pos < fptosi_pos,
        "f64-to-i64-result must prove integrality before fptosi\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "f64-to-i64-result fixture compile wrote stderr:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"f64 zero narrows to i64\" ... ok\n",
            "test \"negative f64 narrows to i64\" ... ok\n",
            "test \"fractional f64 returns err for i64\" ... ok\n",
            "test \"above i64 range f64 returns err\" ... ok\n",
            "4 test(s) passed\n",
        ),
        "f64-to-i64-result test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(
        format,
        &expected_format,
        "f64-to-i64-result formatter output",
    );
}

fn assert_result_helpers_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);

    assert!(
        compile.status.success(),
        "result-helpers fixture compile failed\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define i1 @observe_i32_ok()")
            && stdout.contains("define i32 @unwrap_i32_ok()")
            && stdout.contains("define i1 @observe_text_ok()")
            && stdout.contains("define ptr @unwrap_text_ok()")
            && stdout.contains("__glagol_unwrap_ok_trap")
            && stdout.contains("__glagol_unwrap_err_trap")
            && !stdout.contains("@std.result.is_ok")
            && !stdout.contains("@std.result.is_err")
            && !stdout.contains("@std.result.unwrap_ok")
            && !stdout.contains("@std.result.unwrap_err"),
        "result-helpers fixture LLVM shape drifted\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "result-helpers fixture compile wrote stderr:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"std result i32 observers\" ... ok\n",
            "test \"std result i32 unwraps\" ... ok\n",
            "test \"std result string observers\" ... ok\n",
            "test \"std result string unwraps\" ... ok\n",
            "test \"legacy result helpers still work\" ... ok\n",
            "5 test(s) passed\n",
        ),
        "result-helpers test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(format, &expected_format, "result-helpers formatter output");
}

fn assert_standard_runtime_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);

    assert!(
        compile.status.success(),
        "standard-runtime fixture compile failed\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("declare void @print_i32(i32)")
            && stdout.contains("declare void @print_string(ptr)")
            && stdout.contains("declare void @print_bool(i1)")
            && stdout.contains("declare i32 @string_len(ptr)")
            && stdout.contains("call void @print_string(ptr %")
            && stdout.contains("call void @print_bool(i1 %")
            && stdout.contains("call void @print_i32(i32 %")
            && stdout.contains("call i32 @string_len(ptr ")
            && !stdout.contains("@std."),
        "standard-runtime fixture LLVM shape drifted\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "standard-runtime fixture compile wrote stderr:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"std string equality\" ... ok\n",
            "test \"std string byte length\" ... ok\n",
            "2 test(s) passed\n",
        ),
        "standard-runtime test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(
        format,
        &expected_format,
        "standard-runtime formatter output",
    );
}

fn assert_time_sleep_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);

    assert!(
        compile.status.success(),
        "time-sleep fixture compile failed\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("declare i32 @__glagol_time_monotonic_ms()")
            && stdout.contains("declare void @__glagol_time_sleep_ms(i32)")
            && stdout.contains("call i32 @__glagol_time_monotonic_ms()")
            && stdout.contains("call void @__glagol_time_sleep_ms(i32 0)")
            && !stdout.contains("@std.time."),
        "time-sleep fixture LLVM shape drifted\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "time-sleep fixture compile wrote stderr:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"monotonic value is self equal\" ... ok\n",
            "test \"sleep zero returns\" ... ok\n",
            "2 test(s) passed\n",
        ),
        "time-sleep test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(format, &expected_format, "time-sleep formatter output");
}

fn assert_owned_string_concat_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);

    assert!(
        compile.status.success(),
        "owned-string-concat fixture compile failed\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("declare ptr @__glagol_string_concat(ptr, ptr)")
            && stdout.contains("define ptr @join(ptr %left, ptr %right)")
            && stdout.contains("call ptr @__glagol_string_concat(ptr %left, ptr %right)")
            && stdout.contains("call void @print_string(ptr %")
            && stdout.contains("call void @print_i32(i32 %")
            && stdout.contains("call i32 @string_len(ptr %")
            && !stdout.contains("@std."),
        "owned-string-concat fixture LLVM shape drifted\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "owned-string-concat fixture compile wrote stderr:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"owned string concat equality\" ... ok\n",
            "test \"owned string concat length\" ... ok\n",
            "2 test(s) passed\n",
        ),
        "owned-string-concat test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(
        format,
        &expected_format,
        "owned-string-concat formatter output",
    );
}

fn assert_string_value_flow_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);

    assert!(
        compile.status.success(),
        "string-value-flow fixture compile failed\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define ptr @label()")
            && stdout.contains("define ptr @echo(ptr %value)")
            && stdout.contains("define ptr @local_label()")
            && stdout.contains("define i32 @label_len()")
            && stdout.contains("%value.addr = alloca ptr")
            && stdout.contains("call i32 @string_len(ptr %")
            && stdout.contains("call void @print_string(ptr %"),
        "string-value-flow fixture LLVM shape drifted\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "string-value-flow fixture compile wrote stderr:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"string literal equality\" ... ok\n",
            "test \"string parameter equality\" ... ok\n",
            "test \"string call return equality\" ... ok\n",
            "test \"string byte length\" ... ok\n",
            "4 test(s) passed\n",
        ),
        "string value-flow test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(
        format,
        &expected_format,
        "string-value-flow formatter output",
    );
}

fn assert_if_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "compiler rejected if fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define i32 @choose(i32 %value)")
            && stdout.contains("if.then")
            && stdout.contains("if.else")
            && stdout.contains("if.end")
            && stdout.contains("br i1")
            && stdout.contains(" phi i32 "),
        "compiler output for if fixture lost branch shape\nstdout:\n{}",
        stdout
    );
    assert!(
        !stdout.contains("if chooses") && !stdout.contains("if returns bool"),
        "compiler output should not emit top-level test names as LLVM metadata\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "compiler wrote stderr for if fixture:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"if chooses then\" ... ok\n",
            "test \"if chooses else\" ... ok\n",
            "test \"if returns bool\" ... ok\n",
            "3 test(s) passed\n",
        ),
        "if test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(format, &expected_format, "if formatter output");
}

fn assert_struct_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "compiler rejected struct fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define i32 @point_sum()")
            && stdout.contains("insertvalue { i32, i32 }")
            && stdout.contains("extractvalue { i32, i32 }")
            && stdout.contains("define i32 @main()")
            && !stdout.contains("type {"),
        "compiler output for struct fixture lost field-read shape\nstdout:\n{}",
        stdout
    );
    assert!(
        !stdout.contains("struct field access") && !stdout.contains("struct field compares"),
        "compiler output should not emit top-level test names as LLVM metadata\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "compiler wrote stderr for struct fixture:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"struct field access\" ... ok\n",
            "test \"struct field compares\" ... ok\n",
            "2 test(s) passed\n",
        ),
        "struct test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(format, &expected_format, "struct formatter output");
}

fn assert_struct_value_flow_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "compiler rejected struct value-flow fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define { i32, i32 } @make_point(i32 %x, i32 %y)")
            && stdout.contains("define i32 @point_x({ i32, i32 } %p)")
            && stdout.contains("define i32 @point_sum({ i32, i32 } %p)")
            && stdout.contains("alloca { i32, i32 }")
            && stdout.contains("call i32 @point_sum({ i32, i32 }")
            && !stdout.contains("type {"),
        "compiler output for struct value-flow fixture lost aggregate shape\nstdout:\n{}",
        stdout
    );
    assert!(
        !stdout.contains("struct local value flow")
            && !stdout.contains("struct parameter value flow")
            && !stdout.contains("stored struct field access"),
        "compiler output should not emit top-level test names as LLVM metadata\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "compiler wrote stderr for struct value-flow fixture:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"struct local value flow\" ... ok\n",
            "test \"struct parameter value flow\" ... ok\n",
            "test \"stored struct field access\" ... ok\n",
            "3 test(s) passed\n",
        ),
        "struct value-flow test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(
        format,
        &expected_format,
        "struct value-flow formatter output",
    );
}

fn assert_unsafe_tooling_matches_fixtures(repo: &Path, example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "compiler rejected unsafe fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define i32 @add_one_in_unsafe(i32 %value)")
            && stdout.contains("%0 = add i32 %value, 1")
            && stdout.contains("ret i32 %0")
            && !stdout.contains("%one.addr = alloca i32")
            && stdout.contains("define i32 @main()"),
        "compiler output for unsafe fixture lost safe block shape\nstdout:\n{}",
        stdout
    );
    assert!(
        !stdout.contains("unsafe block returns final value")
            && !stdout.contains("unsafe block can return bool"),
        "compiler output should not emit top-level test names as LLVM metadata\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "compiler wrote stderr for unsafe fixture:\n{}",
        stderr
    );

    assert_lowering_inspector_matches_fixture(
        repo,
        formatter_fixture,
        "--inspect-lowering=surface",
        "unsafe.surface.lower",
    );
    assert_lowering_inspector_matches_fixture(
        repo,
        formatter_fixture,
        "--inspect-lowering=checked",
        "unsafe.checked.lower",
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"unsafe block returns final value\" ... ok\n",
            "test \"unsafe block can return bool\" ... ok\n",
            "2 test(s) passed\n",
        ),
        "unsafe test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(format, &expected_format, "unsafe formatter output");
}

fn assert_vec_i32_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "compiler rejected vec-i32 fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("declare ptr @__glagol_vec_i32_empty()")
            && stdout.contains("declare ptr @__glagol_vec_i32_append(ptr, i32)")
            && stdout.contains("declare i32 @__glagol_vec_i32_len(ptr)")
            && stdout.contains("declare i32 @__glagol_vec_i32_index(ptr, i32)")
            && stdout.contains("declare i1 @__glagol_vec_i32_eq(ptr, ptr)")
            && stdout.contains("define ptr @empty_values()")
            && stdout.contains("define ptr @pair(i32 %base)")
            && stdout.contains("define ptr @echo(ptr %values)")
            && stdout.contains("define i32 @at(ptr %values, i32 %i)")
            && stdout.contains("call ptr @__glagol_vec_i32_append(ptr %")
            && stdout.contains("call i32 @__glagol_vec_i32_index(ptr %"),
        "compiler output for vec-i32 fixture lost runtime vector shape\nstdout:\n{}",
        stdout
    );
    assert!(
        !stdout.contains("vec i32 empty length") && !stdout.contains("vec i32 equality"),
        "compiler output should not emit top-level test names as LLVM metadata\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "compiler wrote stderr for vec-i32 fixture:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"vec i32 empty length\" ... ok\n",
            "test \"vec i32 append length\" ... ok\n",
            "test \"vec i32 index\" ... ok\n",
            "test \"vec i32 append is immutable\" ... ok\n",
            "test \"vec i32 equality\" ... ok\n",
            "5 test(s) passed\n",
        ),
        "vec-i32 test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(format, &expected_format, "vec-i32 formatter output");
}

fn assert_while_tooling_matches_fixtures(example: &Path, formatter_fixture: &Path) {
    let compile = run_glagol([example.as_os_str()]);
    let stdout = String::from_utf8_lossy(&compile.stdout);
    let stderr = String::from_utf8_lossy(&compile.stderr);
    assert!(
        compile.status.success(),
        "compiler rejected while fixture\nstdout:\n{}\nstderr:\n{}",
        stdout,
        stderr
    );
    assert!(
        stdout.contains("define i32 @count_to(i32 %limit)")
            && stdout.contains("while.cond")
            && stdout.contains("while.body")
            && stdout.contains("while.end")
            && stdout.contains("br i1"),
        "compiler output for while fixture lost loop shape\nstdout:\n{}",
        stdout
    );
    assert!(
        !stdout.contains("while counts") && !stdout.contains("while false skips"),
        "compiler output should not emit top-level test names as LLVM metadata\nstdout:\n{}",
        stdout
    );
    assert!(
        stderr.is_empty(),
        "compiler wrote stderr for while fixture:\n{}",
        stderr
    );

    let run = run_glagol([OsStr::new("--run-tests"), example.as_os_str()]);
    assert_success_stdout(
        run,
        concat!(
            "test \"while counts\" ... ok\n",
            "test \"while false skips\" ... ok\n",
            "2 test(s) passed\n",
        ),
        "while test runner output",
    );

    let expected_format = read(formatter_fixture);
    let format = run_glagol([OsStr::new("--format"), formatter_fixture.as_os_str()]);
    assert_success_stdout(format, &expected_format, "while formatter output");
}

fn assert_project_enum_imports_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/readings.slo").is_file());
    assert!(project.join("src/main.slo").is_file());

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "project enum imports check");

    let test_cwd = temp_root("std-layout-local-fs");
    let test = run_glagol_in([OsStr::new("test"), project.as_os_str()], &test_cwd);
    assert_success_stdout(
        test,
        concat!(
            "test \"local exported enum constructor\" ... ok\n",
            "test \"imported enum payload constructor equality\" ... ok\n",
            "test \"imported enum payload equality compares payload\" ... ok\n",
            "test \"imported enum payloadless equality\" ... ok\n",
            "test \"imported enum local return call flow\" ... ok\n",
            "test \"imported enum parameter equality\" ... ok\n",
            "test \"imported enum match missing\" ... ok\n",
            "test \"imported enum match value\" ... ok\n",
            "test \"imported enum match offset\" ... ok\n",
            "9 test(s) passed\n",
        ),
        "project enum imports test",
    );
}

fn assert_project_std_layout_local_math_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/math.slo").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert_standard_math_source_helpers_alpha(project);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std layout local math project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"local math i32 helpers\" ... ok\n",
            "test \"local math i64 helpers\" ... ok\n",
            "test \"local math f64 helpers\" ... ok\n",
            "test \"explicit local math import i32 helpers\" ... ok\n",
            "test \"explicit local math import i64 helpers\" ... ok\n",
            "test \"explicit local math import f64 helpers\" ... ok\n",
            "test \"explicit local math import all helpers\" ... ok\n",
            "7 test(s) passed\n",
        ),
        "std layout local math project test",
    );
}

fn assert_project_std_import_math_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert!(
        !project.join("src/math.slo").exists(),
        "std import math fixture must use repo-root std/math.slo, not a local copy"
    );

    let main = read(&project.join("src/main.slo"));
    let slovo_math = read(&repo_root().join("lib/std/math.slo"));
    assert!(
        main.starts_with("(module main)\n\n(import std.math ("),
        "std import math fixture must use explicit `std.math` import syntax"
    );
    assert!(
        slovo_math.starts_with("(module math (export "),
        "repo-root Slovo std/math.slo must directly export imported helpers"
    );
    for helper in STANDARD_MATH_SOURCE_HELPERS_ALPHA {
        assert!(
            slovo_math.contains(&format!("(fn {} ", helper)),
            "Slovo std/math.slo is missing helper `{}`",
            helper
        );
        assert!(
            main.matches(helper).count() >= 2,
            "std import math main fixture import/use is missing helper `{}`",
            helper
        );
    }

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std import math project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit std math import i32 helpers\" ... ok\n",
            "test \"explicit std math import i64 helpers\" ... ok\n",
            "test \"explicit std math import f64 helpers\" ... ok\n",
            "test \"explicit std math import all helpers\" ... ok\n",
            "4 test(s) passed\n",
        ),
        "std import math project test",
    );
}

fn assert_project_std_import_result_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert!(
        !project.join("src/result.slo").exists(),
        "std import result fixture must use repo-root std/result.slo, not a local copy"
    );
    assert!(
        !project.join("src/bridge.slo").exists(),
        "std import result fixture must not depend on a local bridge shim"
    );

    let main = read(&project.join("src/main.slo"));
    let slovo_result = read(&repo_root().join("lib/std/result.slo"));
    assert!(
        main.starts_with("(module main)\n\n(import std.result ("),
        "std import result fixture must use explicit `std.result` import syntax"
    );
    assert!(
        slovo_result.starts_with("(module result (export "),
        "repo-root Slovo std/result.slo must directly export imported helpers"
    );
    for helper in STANDARD_RESULT_SOURCE_SEARCH_ALPHA {
        assert!(
            slovo_result.contains(&format!("(fn {} ", helper)),
            "Slovo std/result.slo is missing helper `{}`",
            helper
        );
    }
    for helper in [
        "is_ok_i32",
        "is_err_i32",
        "unwrap_ok_i32",
        "unwrap_err_i32",
        "unwrap_or_i32",
        "is_ok_u32",
        "is_err_u32",
        "unwrap_ok_u32",
        "unwrap_err_u32",
        "unwrap_or_u32",
        "is_err_i64",
        "unwrap_err_i64",
        "unwrap_or_i64",
        "is_ok_u64",
        "is_err_u64",
        "unwrap_ok_u64",
        "unwrap_err_u64",
        "unwrap_or_u64",
        "is_err_string",
        "unwrap_err_string",
        "is_err_f64",
        "unwrap_err_f64",
        "unwrap_or_string",
        "unwrap_or_f64",
        "is_ok_bool",
        "is_err_bool",
        "unwrap_ok_bool",
        "unwrap_err_bool",
        "unwrap_or_bool",
    ] {
        assert!(
            main.matches(helper).count() >= 1,
            "std import result main fixture import/use is missing helper `{}`",
            helper
        );
    }
    for helper in STANDARD_RESULT_OPTION_BRIDGE_HELPERS_ALPHA {
        assert!(
            slovo_result.contains(&format!("(fn {} ", helper)),
            "Slovo std/result.slo is missing exp-109 bridge helper `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "std import result main fixture import/use is missing exp-109 bridge helper `{}`",
            helper
        );
    }

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std import result project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit std result i32 wrappers\" ... ok\n",
            "test \"explicit std result err wrappers\" ... ok\n",
            "test \"explicit std result unwrap_or i32\" ... ok\n",
            "test \"explicit std result ok_or_none i32 ok\" ... ok\n",
            "test \"explicit std result ok_or_none i32 none\" ... ok\n",
            "test \"explicit std result u32 wrappers\" ... ok\n",
            "test \"explicit std result unwrap_or u32\" ... ok\n",
            "test \"explicit std result ok_or_none u32 ok\" ... ok\n",
            "test \"explicit std result ok_or_none u32 none\" ... ok\n",
            "test \"explicit std result unwrap_or i64\" ... ok\n",
            "test \"explicit std result ok_or_none i64 ok\" ... ok\n",
            "test \"explicit std result ok_or_none i64 none\" ... ok\n",
            "test \"explicit std result u64 wrappers\" ... ok\n",
            "test \"explicit std result unwrap_or u64\" ... ok\n",
            "test \"explicit std result ok_or_none u64 ok\" ... ok\n",
            "test \"explicit std result ok_or_none u64 none\" ... ok\n",
            "test \"explicit std result unwrap_or string\" ... ok\n",
            "test \"explicit std result ok_or_none string ok\" ... ok\n",
            "test \"explicit std result ok_or_none string none\" ... ok\n",
            "test \"explicit std result unwrap_or f64\" ... ok\n",
            "test \"explicit std result ok_or_none f64 ok\" ... ok\n",
            "test \"explicit std result ok_or_none f64 none\" ... ok\n",
            "test \"explicit std result bool helpers\" ... ok\n",
            "test \"explicit std result ok_or_none bool ok\" ... ok\n",
            "test \"explicit std result ok_or_none bool none\" ... ok\n",
            "test \"explicit std result helpers all\" ... ok\n",
            "26 test(s) passed\n",
        ),
        "std import result project test",
    );
}

fn assert_project_std_import_option_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert!(
        !project.join("src/option.slo").exists(),
        "std import option fixture must use repo-root std/option.slo, not a local copy"
    );
    assert!(
        !project.join("src/bridge.slo").exists(),
        "std import option fixture must not depend on a local bridge shim"
    );

    let main = read(&project.join("src/main.slo"));
    let slovo_option = read(&repo_root().join("lib/std/option.slo"));
    assert!(
        main.starts_with("(module main)\n\n(import std.option ("),
        "std import option fixture must use explicit `std.option` import syntax"
    );
    assert!(
        slovo_option.starts_with("(module option (export "),
        "repo-root Slovo std/option.slo must directly export imported helpers"
    );
    for helper in STANDARD_OPTION_SOURCE_HELPERS_ALPHA {
        assert!(
            slovo_option.contains(&format!("(fn {} ", helper)),
            "Slovo std/option.slo is missing helper `{}`",
            helper
        );
        assert!(
            main.matches(helper).count() >= 2,
            "std import option main fixture import/use is missing helper `{}`",
            helper
        );
    }
    for helper in STANDARD_OPTION_RESULT_BRIDGE_HELPERS_ALPHA {
        assert!(
            slovo_option.contains(&format!("(fn {} ", helper)),
            "Slovo std/option.slo is missing exp-109 bridge helper `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "std import option main fixture import/use is missing exp-109 bridge helper `{}`",
            helper
        );
    }

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std import option project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit std option i32 observation\" ... ok\n",
            "test \"explicit std option i32 unwrap_some\" ... ok\n",
            "test \"explicit std option i32 unwrap_or\" ... ok\n",
            "test \"explicit std option i32 some_or_err ok\" ... ok\n",
            "test \"explicit std option i32 some_or_err err\" ... ok\n",
            "test \"explicit std option u32 observation\" ... ok\n",
            "test \"explicit std option u32 unwrap_some\" ... ok\n",
            "test \"explicit std option u32 unwrap_or\" ... ok\n",
            "test \"explicit std option u32 some_or_err ok\" ... ok\n",
            "test \"explicit std option u32 some_or_err err\" ... ok\n",
            "test \"explicit std option i64 observation\" ... ok\n",
            "test \"explicit std option i64 unwrap_some\" ... ok\n",
            "test \"explicit std option i64 unwrap_or\" ... ok\n",
            "test \"explicit std option i64 some_or_err ok\" ... ok\n",
            "test \"explicit std option i64 some_or_err err\" ... ok\n",
            "test \"explicit std option u64 observation\" ... ok\n",
            "test \"explicit std option u64 unwrap_some\" ... ok\n",
            "test \"explicit std option u64 unwrap_or\" ... ok\n",
            "test \"explicit std option u64 some_or_err ok\" ... ok\n",
            "test \"explicit std option u64 some_or_err err\" ... ok\n",
            "test \"explicit std option f64 observation\" ... ok\n",
            "test \"explicit std option f64 unwrap_some\" ... ok\n",
            "test \"explicit std option f64 unwrap_or\" ... ok\n",
            "test \"explicit std option f64 some_or_err ok\" ... ok\n",
            "test \"explicit std option f64 some_or_err err\" ... ok\n",
            "test \"explicit std option bool observation\" ... ok\n",
            "test \"explicit std option bool unwrap_some\" ... ok\n",
            "test \"explicit std option bool unwrap_or\" ... ok\n",
            "test \"explicit std option bool some_or_err ok\" ... ok\n",
            "test \"explicit std option bool some_or_err err\" ... ok\n",
            "test \"explicit std option string observation\" ... ok\n",
            "test \"explicit std option string unwrap_some\" ... ok\n",
            "test \"explicit std option string unwrap_or\" ... ok\n",
            "test \"explicit std option string some_or_err ok\" ... ok\n",
            "test \"explicit std option string some_or_err err\" ... ok\n",
            "test \"explicit std option helpers all\" ... ok\n",
            "36 test(s) passed\n",
        ),
        "std import option project test",
    );
}

fn assert_project_std_import_time_tooling_matches_fixture(project: &Path) {
    assert_project_std_import_host_facade_tooling_matches_fixture(
        project,
        "time",
        STANDARD_TIME_SOURCE_FACADE_ALPHA,
        concat!(
            "test \"explicit std time monotonic facade\" ... ok\n",
            "test \"explicit std time sleep zero facade\" ... ok\n",
            "test \"explicit std time facade all\" ... ok\n",
            "3 test(s) passed\n",
        ),
    );
}

fn assert_project_std_import_random_tooling_matches_fixture(project: &Path) {
    assert_project_std_import_host_facade_tooling_matches_fixture(
        project,
        "random",
        STANDARD_RANDOM_SOURCE_FACADE_ALPHA,
        concat!(
            "test \"explicit std random i32 non-negative facade\" ... ok\n",
            "test \"explicit std random facade all\" ... ok\n",
            "2 test(s) passed\n",
        ),
    );
}

fn assert_project_std_import_env_tooling_matches_fixture(project: &Path) {
    assert_project_std_import_host_facade_shape(project, "env", STANDARD_ENV_SOURCE_FACADE_ALPHA);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std import env project check");

    let test = run_glagol_configured([OsStr::new("test"), project.as_os_str()], |command| {
        configure_standard_import_env(command);
    });
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit std env get missing facade\" ... ok\n",
            "test \"explicit std env get result missing facade\" ... ok\n",
            "test \"explicit std env has missing facade\" ... ok\n",
            "test \"explicit std env get or missing facade\" ... ok\n",
            "test \"explicit std env get option missing facade\" ... ok\n",
            "test \"explicit std env has present facade\" ... ok\n",
            "test \"explicit std env get or present facade\" ... ok\n",
            "test \"explicit std env get option present facade\" ... ok\n",
            "test \"explicit std env get i32 result present facade\" ... ok\n",
            "test \"explicit std env get i32 or zero invalid facade\" ... ok\n",
            "test \"explicit std env get u32 result present facade\" ... ok\n",
            "test \"explicit std env get u32 or zero invalid facade\" ... ok\n",
            "test \"explicit std env get i64 result present facade\" ... ok\n",
            "test \"explicit std env get i64 or zero missing facade\" ... ok\n",
            "test \"explicit std env get u64 result present facade\" ... ok\n",
            "test \"explicit std env get u64 or zero missing facade\" ... ok\n",
            "test \"explicit std env get f64 result present facade\" ... ok\n",
            "test \"explicit std env get f64 or zero invalid facade\" ... ok\n",
            "test \"explicit std env get bool result present facade\" ... ok\n",
            "test \"explicit std env get bool or false invalid facade\" ... ok\n",
            "test \"explicit std env typed option facade\" ... ok\n",
            "test \"explicit std env typed custom fallback facade\" ... ok\n",
            "test \"explicit std env facade all\" ... ok\n",
            "23 test(s) passed\n",
        ),
        "std import env project test",
    );
}

fn assert_project_std_import_fs_tooling_matches_fixture(project: &Path) {
    assert_project_std_import_host_facade_shape(project, "fs", STANDARD_FS_SOURCE_FACADE_ALPHA);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std import fs project check");

    let test_cwd = temp_root("std-import-fs");
    let test = run_glagol_in([OsStr::new("test"), project.as_os_str()], &test_cwd);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit std fs write text status facade\" ... ok\n",
            "test \"explicit std fs read text facade\" ... ok\n",
            "test \"explicit std fs write text result facade\" ... ok\n",
            "test \"explicit std fs read text result facade\" ... ok\n",
            "test \"explicit std fs read text via handle facade\" ... ok\n",
            "test \"explicit std fs open read close handle facade\" ... ok\n",
            "test \"explicit std fs closed handle read err facade\" ... ok\n",
            "test \"explicit std fs invalid close err facade\" ... ok\n",
            "test \"explicit std fs exists file facade\" ... ok\n",
            "test \"explicit std fs exists missing facade\" ... ok\n",
            "test \"explicit std fs create dir result facade\" ... ok\n",
            "test \"explicit std fs is dir facade\" ... ok\n",
            "test \"explicit std fs create dir ok facade\" ... ok\n",
            "test \"explicit std fs remove file result facade\" ... ok\n",
            "test \"explicit std fs remove file ok facade\" ... ok\n",
            "test \"explicit std fs read text option missing facade\" ... ok\n",
            "test \"explicit std fs read text option present facade\" ... ok\n",
            "test \"explicit std fs read text or missing facade\" ... ok\n",
            "test \"explicit std fs read text or present facade\" ... ok\n",
            "test \"explicit std fs write text ok facade\" ... ok\n",
            "test \"explicit std fs read i32 result present facade\" ... ok\n",
            "test \"explicit std fs read i32 or zero invalid facade\" ... ok\n",
            "test \"explicit std fs read u32 result present facade\" ... ok\n",
            "test \"explicit std fs read u32 or zero invalid facade\" ... ok\n",
            "test \"explicit std fs read i64 result present facade\" ... ok\n",
            "test \"explicit std fs read i64 or zero missing facade\" ... ok\n",
            "test \"explicit std fs read u64 result present facade\" ... ok\n",
            "test \"explicit std fs read u64 or zero missing facade\" ... ok\n",
            "test \"explicit std fs read f64 result present facade\" ... ok\n",
            "test \"explicit std fs read f64 or zero invalid facade\" ... ok\n",
            "test \"explicit std fs read bool result present facade\" ... ok\n",
            "test \"explicit std fs read bool or false invalid facade\" ... ok\n",
            "test \"explicit std fs typed option facade\" ... ok\n",
            "test \"explicit std fs typed custom fallback facade\" ... ok\n",
            "test \"explicit std fs facade all\" ... ok\n",
            "35 test(s) passed\n",
        ),
        "std import fs project test",
    );
}

fn assert_project_std_import_net_tooling_matches_fixture(project: &Path) {
    assert_project_std_import_host_facade_tooling_matches_fixture(
        project,
        "net",
        STANDARD_NET_SOURCE_FACADE_ALPHA,
        concat!(
            "test \"explicit std net invalid connect facade\" ... ok\n",
            "test \"explicit std net invalid listen facade\" ... ok\n",
            "test \"explicit std net invalid bound port facade\" ... ok\n",
            "test \"explicit std net invalid accept facade\" ... ok\n",
            "test \"explicit std net invalid read facade\" ... ok\n",
            "test \"explicit std net invalid write facade\" ... ok\n",
            "test \"explicit std net invalid close facade\" ... ok\n",
            "test \"explicit std net helper invalids facade\" ... ok\n",
            "test \"explicit std net facade all\" ... ok\n",
            "9 test(s) passed\n",
        ),
    );
}

fn assert_project_std_import_json_tooling_matches_fixture(project: &Path) {
    assert_project_std_import_host_facade_tooling_matches_fixture(
        project,
        "json",
        STANDARD_JSON_SOURCE_FACADE_ALPHA,
        concat!(
            "test \"explicit std json quote escapes facade\" ... ok\n",
            "test \"explicit std json scalar values facade\" ... ok\n",
            "test \"explicit std json primitive scalar parse success facade\" ... ok\n",
            "test \"explicit std json primitive scalar parse failure facade\" ... ok\n",
            "test \"explicit std json fields facade\" ... ok\n",
            "test \"explicit std json arrays objects facade\" ... ok\n",
            "test \"explicit std json facade all\" ... ok\n",
            "7 test(s) passed\n",
        ),
    );
}

fn assert_project_std_import_process_tooling_matches_fixture(project: &Path) {
    assert_project_std_import_host_facade_shape(
        project,
        "process",
        STANDARD_PROCESS_SOURCE_FACADE_ALPHA,
    );

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std import process project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit std process argc facade\" ... ok\n",
            "test \"explicit std process arg result oob facade\" ... ok\n",
            "test \"explicit std process arg option facade\" ... ok\n",
            "test \"explicit std process has arg facade\" ... ok\n",
            "test \"explicit std process arg fallback missing facade\" ... ok\n",
            "test \"explicit std process arg fallback present facade\" ... ok\n",
            "test \"explicit std process arg i32 missing facade\" ... ok\n",
            "test \"explicit std process arg i32 invalid fallback facade\" ... ok\n",
            "test \"explicit std process arg u32 missing facade\" ... ok\n",
            "test \"explicit std process arg u32 invalid fallback facade\" ... ok\n",
            "test \"explicit std process arg i64 missing facade\" ... ok\n",
            "test \"explicit std process arg i64 invalid fallback facade\" ... ok\n",
            "test \"explicit std process arg u64 missing facade\" ... ok\n",
            "test \"explicit std process arg u64 invalid fallback facade\" ... ok\n",
            "test \"explicit std process arg f64 missing facade\" ... ok\n",
            "test \"explicit std process arg f64 invalid fallback facade\" ... ok\n",
            "test \"explicit std process arg bool missing facade\" ... ok\n",
            "test \"explicit std process arg bool invalid fallback facade\" ... ok\n",
            "test \"explicit std process typed option facade\" ... ok\n",
            "test \"explicit std process typed custom fallback facade\" ... ok\n",
            "test \"explicit std process facade all\" ... ok\n",
            "21 test(s) passed\n",
        ),
        "std import process project test",
    );
}

fn assert_project_std_import_string_tooling_matches_fixture(project: &Path) {
    assert_project_std_import_core_facade_tooling_matches_fixture(
        project,
        "string",
        STANDARD_STRING_SOURCE_FACADE_ALPHA,
        concat!(
            "test \"explicit std string len concat\" ... ok\n",
            "test \"explicit std string byte_at_result wrapper\" ... ok\n",
            "test \"explicit std string slice_result wrapper\" ... ok\n",
            "test \"explicit std string boundary wrappers\" ... ok\n",
            "test \"explicit std string parse result wrappers\" ... ok\n",
            "test \"explicit std string parse option wrappers\" ... ok\n",
            "test \"explicit std string parse integer fallbacks\" ... ok\n",
            "test \"explicit std string parse float bool fallbacks\" ... ok\n",
            "test \"explicit std string parse custom fallbacks\" ... ok\n",
            "test \"explicit std string helpers all\" ... ok\n",
            "10 test(s) passed\n",
        ),
    );
}

fn assert_project_std_import_num_tooling_matches_fixture(project: &Path) {
    assert_project_std_import_core_facade_tooling_matches_fixture(
        project,
        "num",
        STANDARD_NUM_SOURCE_FACADE_ALPHA,
        concat!(
            "test \"explicit std num widening\" ... ok\n",
            "test \"explicit std num checked conversions\" ... ok\n",
            "test \"explicit std num to string\" ... ok\n",
            "test \"explicit std num checked fallbacks\" ... ok\n",
            "test \"explicit std num helpers all\" ... ok\n",
            "5 test(s) passed\n",
        ),
    );
}

fn assert_project_std_import_io_tooling_matches_fixture(project: &Path) {
    assert_project_std_import_host_facade_shape(project, "io", STANDARD_IO_SOURCE_FACADE_ALPHA);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std import io project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit std io i64 zero facade\" ... ok\n",
            "test \"explicit std io u32 zero facade\" ... ok\n",
            "test \"explicit std io u64 zero facade\" ... ok\n",
            "test \"explicit std io f64 zero facade\" ... ok\n",
            "test \"explicit std io value facade\" ... ok\n",
            "test \"explicit std io stdin result facade\" ... ok\n",
            "test \"explicit std io stdin option facade\" ... ok\n",
            "test \"explicit std io stdin text fallback facade\" ... ok\n",
            "test \"explicit std io stdin typed result facade\" ... ok\n",
            "test \"explicit std io stdin typed option facade\" ... ok\n",
            "test \"explicit std io stdin typed fallback facade\" ... ok\n",
            "test \"explicit std io helpers all\" ... ok\n",
            "12 test(s) passed\n",
        ),
        "std import io project test",
    );
}

fn assert_project_std_import_cli_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert!(
        !project.join("src/cli.slo").exists(),
        "std import cli fixture must use repo-root std/cli.slo, not a local copy"
    );

    let main = read(&project.join("src/main.slo"));
    let slovo_cli = read(&repo_root().join("lib/std/cli.slo"));
    assert!(
        main.starts_with("(module main)\n\n(import std.cli ("),
        "std import cli fixture must use explicit `std.cli` import syntax"
    );
    assert!(
        slovo_cli.contains("(import std.process (arg_result))")
            && slovo_cli
                .contains("(import std.result (ok_or_none_string ok_or_none_i32 ok_or_none_u32 ok_or_none_i64 ok_or_none_u64 ok_or_none_f64 ok_or_none_bool))")
            && slovo_cli
                .contains("(import std.string (parse_i32_result parse_u32_result parse_i64_result parse_u64_result parse_f64_result parse_bool_result))"),
        "std/cli.slo must preserve transitive standard-source imports"
    );
    for helper in STANDARD_CLI_SOURCE_FACADE_ALPHA {
        assert!(
            slovo_cli.contains(&format!("(fn {} ", helper)),
            "Slovo std/cli.slo is missing helper `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "std import cli main fixture import/use is missing helper `{}`",
            helper
        );
    }

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std import cli project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit std cli arg text missing\" ... ok\n",
            "test \"explicit std cli arg text option\" ... ok\n",
            "test \"explicit std cli arg i32 missing\" ... ok\n",
            "test \"explicit std cli arg i32 fallback missing\" ... ok\n",
            "test \"explicit std cli arg u32 missing\" ... ok\n",
            "test \"explicit std cli arg u32 fallback missing\" ... ok\n",
            "test \"explicit std cli arg i64 missing\" ... ok\n",
            "test \"explicit std cli arg i64 fallback missing\" ... ok\n",
            "test \"explicit std cli arg u64 missing\" ... ok\n",
            "test \"explicit std cli arg u64 fallback missing\" ... ok\n",
            "test \"explicit std cli arg f64 missing\" ... ok\n",
            "test \"explicit std cli arg f64 fallback missing\" ... ok\n",
            "test \"explicit std cli arg bool missing\" ... ok\n",
            "test \"explicit std cli arg bool fallback missing\" ... ok\n",
            "test \"explicit std cli typed option\" ... ok\n",
            "test \"explicit std cli typed custom fallback\" ... ok\n",
            "test \"explicit std cli facade all\" ... ok\n",
            "17 test(s) passed\n",
        ),
        "std import cli project test",
    );
}

fn assert_project_std_import_vec_i32_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert!(
        !project.join("src/vec_i32.slo").exists(),
        "std import vec_i32 fixture must use repo-root std/vec_i32.slo, not a local copy"
    );

    let main = read(&project.join("src/main.slo"));
    let slovo_vec_i32 = read(&repo_root().join("lib/std/vec_i32.slo"));
    assert!(
        main.starts_with("(module main)\n\n(import std.vec_i32 ("),
        "std import vec_i32 fixture must use explicit `std.vec_i32` import syntax"
    );
    assert!(
        slovo_vec_i32.starts_with("(module vec_i32 (export "),
        "repo-root Slovo std/vec_i32.slo must directly export imported helpers"
    );
    assert_std_only_contains(
        &slovo_vec_i32,
        &[
            "std.vec.i32.empty",
            "std.vec.i32.append",
            "std.vec.i32.len",
            "std.vec.i32.index",
            "std.option",
        ],
        "std/vec_i32.slo must use only the existing promoted std.vec.i32 runtime names",
    );
    assert!(
        !slovo_vec_i32.contains("capacity")
            && !slovo_vec_i32.contains("reserve")
            && !slovo_vec_i32.contains("shrink")
            && !slovo_vec_i32.contains("sort")
            && !slovo_vec_i32.contains("map")
            && !slovo_vec_i32.contains("filter")
            && !slovo_vec_i32.contains("(option i64)")
            && !slovo_vec_i32.contains("(option f64)")
            && !slovo_vec_i32.contains("(option string)")
            && !slovo_vec_i32.contains("(option bool)"),
        "std vec_i32 source facade must stay narrow and explicit"
    );
    for helper in STANDARD_VEC_I32_SOURCE_FACADE_ALPHA {
        assert!(
            slovo_vec_i32.contains(&format!("(fn {} ", helper)),
            "Slovo std/vec_i32.slo is missing helper `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "std import vec_i32 main fixture import/use is missing helper `{}`",
            helper
        );
    }

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std import vec_i32 project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit std vec_i32 empty len facade\" ... ok\n",
            "test \"explicit std vec_i32 direct at facade\" ... ok\n",
            "test \"explicit std vec_i32 builder helpers\" ... ok\n",
            "test \"explicit std vec_i32 constructor helpers\" ... ok\n",
            "test \"explicit std vec_i32 range helper\" ... ok\n",
            "test \"explicit std vec_i32 query helpers\" ... ok\n",
            "test \"explicit std vec_i32 option query helpers\" ... ok\n",
            "test \"explicit std vec_i32 starts_with helper\" ... ok\n",
            "test \"explicit std vec_i32 ends_with helper\" ... ok\n",
            "test \"explicit std vec_i32 without_suffix helper\" ... ok\n",
            "test \"explicit std vec_i32 without_prefix helper\" ... ok\n",
            "test \"explicit std vec_i32 transform helpers\" ... ok\n",
            "test \"explicit std vec_i32 subvec helper\" ... ok\n",
            "test \"explicit std vec_i32 insert helper\" ... ok\n",
            "test \"explicit std vec_i32 insert range helper\" ... ok\n",
            "test \"explicit std vec_i32 replace helper\" ... ok\n",
            "test \"explicit std vec_i32 replace range helper\" ... ok\n",
            "test \"explicit std vec_i32 remove helper\" ... ok\n",
            "test \"explicit std vec_i32 remove range helper\" ... ok\n",
            "test \"explicit std vec_i32 count_of helper\" ... ok\n",
            "test \"explicit std vec_i32 real program helpers\" ... ok\n",
            "test \"explicit std vec_i32 helpers all\" ... ok\n",
            "22 test(s) passed\n",
        ),
        "std import vec_i32 project test",
    );
}

fn assert_project_std_import_vec_i64_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert!(
        !project.join("src/vec_i64.slo").exists(),
        "std import vec_i64 fixture must not use a source-root vec_i64 module copy"
    );
    assert!(
        !project.join("std/vec_i64.slo").exists(),
        "std import vec_i64 fixture must use repo-root Slovo std/vec_i64.slo, not a project-local copy"
    );

    let main = read(&project.join("src/main.slo"));
    let std_vec_i64 = read(&repo_root().join("lib/std/vec_i64.slo"));
    assert!(
        main.starts_with("(module main)\n\n(import std.vec_i64 ("),
        "std import vec_i64 fixture must use explicit `std.vec_i64` import syntax"
    );
    assert!(
        std_vec_i64.starts_with("(module vec_i64 (export "),
        "repo-root Slovo std/vec_i64.slo must directly export imported helpers"
    );
    assert_std_only_contains(
        &std_vec_i64,
        &[
            "std.vec.i64.empty",
            "std.vec.i64.append",
            "std.vec.i64.len",
            "std.vec.i64.index",
        ],
        "std/vec_i64.slo must use only the existing promoted std.vec.i64 runtime names",
    );
    assert!(
        !std_vec_i64.contains("(vec i32)")
            && !std_vec_i64.contains("(vec f64)")
            && !std_vec_i64.contains("(vec string)")
            && !std_vec_i64.contains("(vec bool)")
            && !std_vec_i64.contains("(option f64)")
            && !std_vec_i64.contains("(option string)")
            && !std_vec_i64.contains("(option bool)")
            && !std_vec_i64.contains("(result i32")
            && !std_vec_i64.contains("(result i64")
            && !std_vec_i64.contains("(result f64")
            && !std_vec_i64.contains("(result string")
            && !std_vec_i64.contains("(result bool")
            && !std_vec_i64.contains("capacity")
            && !std_vec_i64.contains("reserve")
            && !std_vec_i64.contains("shrink")
            && !std_vec_i64.contains("sort")
            && !std_vec_i64.contains("map")
            && !std_vec_i64.contains("filter"),
        "std vec_i64 source facade must stay narrow and explicit"
    );
    for helper in STANDARD_VEC_I64_SOURCE_FACADE_ALPHA {
        assert!(
            std_vec_i64.contains(&format!("(fn {} ", helper)),
            "Slovo std/vec_i64.slo is missing helper `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "std import vec_i64 main fixture import/use is missing helper `{}`",
            helper
        );
    }

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std import vec_i64 project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit std vec_i64 empty len facade\" ... ok\n",
            "test \"explicit std vec_i64 direct at facade\" ... ok\n",
            "test \"explicit std vec_i64 builder helpers\" ... ok\n",
            "test \"explicit std vec_i64 query helpers\" ... ok\n",
            "test \"explicit std vec_i64 option query helpers\" ... ok\n",
            "test \"explicit std vec_i64 count_of helper\" ... ok\n",
            "test \"explicit std vec_i64 starts_with helper\" ... ok\n",
            "test \"explicit std vec_i64 ends_with helper\" ... ok\n",
            "test \"explicit std vec_i64 without_suffix helper\" ... ok\n",
            "test \"explicit std vec_i64 without_prefix helper\" ... ok\n",
            "test \"explicit std vec_i64 transform helpers\" ... ok\n",
            "test \"explicit std vec_i64 subvec helper\" ... ok\n",
            "test \"explicit std vec_i64 insert helper\" ... ok\n",
            "test \"explicit std vec_i64 insert range helper\" ... ok\n",
            "test \"explicit std vec_i64 replace helper\" ... ok\n",
            "test \"explicit std vec_i64 replace range helper\" ... ok\n",
            "test \"explicit std vec_i64 remove helper\" ... ok\n",
            "test \"explicit std vec_i64 remove range helper\" ... ok\n",
            "test \"explicit std vec_i64 real program helpers\" ... ok\n",
            "test \"explicit std vec_i64 helpers all\" ... ok\n",
            "20 test(s) passed\n",
        ),
        "std import vec_i64 project test",
    );
}

fn assert_project_std_import_vec_f64_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert!(
        !project.join("src/vec_f64.slo").exists(),
        "std import vec_f64 fixture must not use a source-root vec_f64 module copy"
    );
    assert!(
        !project.join("std/vec_f64.slo").exists(),
        "std import vec_f64 fixture must use repo-root Slovo std/vec_f64.slo, not a project-local copy"
    );

    let main = read(&project.join("src/main.slo"));
    let std_vec_f64 = read(&repo_root().join("lib/std/vec_f64.slo"));
    assert!(
        main.starts_with("(module main)\n\n(import std.vec_f64 ("),
        "std import vec_f64 fixture must use explicit `std.vec_f64` import syntax"
    );
    assert!(
        std_vec_f64.starts_with("(module vec_f64 (export "),
        "repo-root Slovo std/vec_f64.slo must directly export imported helpers"
    );
    assert_std_only_contains(
        &std_vec_f64,
        &[
            "std.vec.f64.empty",
            "std.vec.f64.append",
            "std.vec.f64.len",
            "std.vec.f64.index",
        ],
        "std/vec_f64.slo must use only the existing promoted std.vec.f64 runtime names",
    );
    assert!(
        !std_vec_f64.contains("(vec i32)")
            && !std_vec_f64.contains("(vec i64)")
            && !std_vec_f64.contains("(vec string)")
            && !std_vec_f64.contains("(vec bool)")
            && !std_vec_f64.contains("(option i64)")
            && !std_vec_f64.contains("(option string)")
            && !std_vec_f64.contains("(option bool)")
            && !std_vec_f64.contains("(result i32")
            && !std_vec_f64.contains("(result i64")
            && !std_vec_f64.contains("(result f64")
            && !std_vec_f64.contains("(result string")
            && !std_vec_f64.contains("(result bool")
            && !std_vec_f64.contains("capacity")
            && !std_vec_f64.contains("reserve")
            && !std_vec_f64.contains("shrink")
            && !std_vec_f64.contains("sort")
            && !std_vec_f64.contains("map")
            && !std_vec_f64.contains("filter"),
        "std vec_f64 source facade must stay concrete to vec f64 plus option i32/f64 helpers"
    );
    for helper in STANDARD_VEC_F64_SOURCE_FACADE_ALPHA {
        assert!(
            std_vec_f64.contains(&format!("(fn {} ", helper)),
            "Slovo std/vec_f64.slo is missing helper `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "std import vec_f64 main fixture import/use is missing helper `{}`",
            helper
        );
    }

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std import vec_f64 project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit std vec_f64 empty len facade\" ... ok\n",
            "test \"explicit std vec_f64 direct at facade\" ... ok\n",
            "test \"explicit std vec_f64 builder helpers\" ... ok\n",
            "test \"explicit std vec_f64 query helpers\" ... ok\n",
            "test \"explicit std vec_f64 option query helpers\" ... ok\n",
            "test \"explicit std vec_f64 count_of helper\" ... ok\n",
            "test \"explicit std vec_f64 starts_with helper\" ... ok\n",
            "test \"explicit std vec_f64 ends_with helper\" ... ok\n",
            "test \"explicit std vec_f64 without_suffix helper\" ... ok\n",
            "test \"explicit std vec_f64 without_prefix helper\" ... ok\n",
            "test \"explicit std vec_f64 transform helpers\" ... ok\n",
            "test \"explicit std vec_f64 subvec helper\" ... ok\n",
            "test \"explicit std vec_f64 insert helper\" ... ok\n",
            "test \"explicit std vec_f64 insert range helper\" ... ok\n",
            "test \"explicit std vec_f64 replace helper\" ... ok\n",
            "test \"explicit std vec_f64 replace range helper\" ... ok\n",
            "test \"explicit std vec_f64 remove helper\" ... ok\n",
            "test \"explicit std vec_f64 remove range helper\" ... ok\n",
            "test \"explicit std vec_f64 real program helpers\" ... ok\n",
            "test \"explicit std vec_f64 helpers all\" ... ok\n",
            "20 test(s) passed\n",
        ),
        "std import vec_f64 project test",
    );
}

fn assert_project_std_import_vec_bool_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert!(
        !project.join("src/vec_bool.slo").exists(),
        "std import vec_bool fixture must not use a source-root vec_bool module copy"
    );
    assert!(
        !project.join("std/vec_bool.slo").exists(),
        "std import vec_bool fixture must use repo-root Slovo std/vec_bool.slo, not a project-local copy"
    );

    let main = read(&project.join("src/main.slo"));
    let std_vec_bool = read(&repo_root().join("lib/std/vec_bool.slo"));
    assert!(
        main.starts_with("(module main)\n\n(import std.vec_bool ("),
        "std import vec_bool fixture must use explicit `std.vec_bool` import syntax"
    );
    assert!(
        std_vec_bool.starts_with("(module vec_bool (export "),
        "repo-root Slovo std/vec_bool.slo must directly export imported helpers"
    );
    assert_std_only_contains(
        &std_vec_bool,
        &[
            "std.vec.bool.empty",
            "std.vec.bool.append",
            "std.vec.bool.len",
            "std.vec.bool.index",
        ],
        "std/vec_bool.slo must use only the existing promoted std.vec.bool runtime names",
    );
    assert!(
        !std_vec_bool.contains("(vec i32)")
            && !std_vec_bool.contains("(vec i64)")
            && !std_vec_bool.contains("(vec string)")
            && !std_vec_bool.contains("(option i64)")
            && !std_vec_bool.contains("(option f64)")
            && !std_vec_bool.contains("(option string)")
            && !std_vec_bool.contains("(result i32")
            && !std_vec_bool.contains("(result i64")
            && !std_vec_bool.contains("(result f64")
            && !std_vec_bool.contains("(result string")
            && !std_vec_bool.contains("(result bool")
            && !std_vec_bool.contains("capacity")
            && !std_vec_bool.contains("reserve")
            && !std_vec_bool.contains("shrink")
            && !std_vec_bool.contains("sort")
            && !std_vec_bool.contains("map")
            && !std_vec_bool.contains("filter"),
        "std vec_bool source facade must stay concrete to vec bool plus option i32/bool helpers"
    );
    for helper in STANDARD_VEC_BOOL_SOURCE_FACADE_ALPHA {
        assert!(
            std_vec_bool.contains(&format!("(fn {} ", helper)),
            "Slovo std/vec_bool.slo is missing helper `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "std import vec_bool main fixture import/use is missing helper `{}`",
            helper
        );
    }

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std import vec_bool project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit std vec_bool empty len facade\" ... ok\n",
            "test \"explicit std vec_bool direct at facade\" ... ok\n",
            "test \"explicit std vec_bool builder helpers\" ... ok\n",
            "test \"explicit std vec_bool query helpers\" ... ok\n",
            "test \"explicit std vec_bool option query helpers\" ... ok\n",
            "test \"explicit std vec_bool starts_with helper\" ... ok\n",
            "test \"explicit std vec_bool ends_with helper\" ... ok\n",
            "test \"explicit std vec_bool without_suffix helper\" ... ok\n",
            "test \"explicit std vec_bool without_prefix helper\" ... ok\n",
            "test \"explicit std vec_bool transform helpers\" ... ok\n",
            "test \"explicit std vec_bool subvec helper\" ... ok\n",
            "test \"explicit std vec_bool insert helper\" ... ok\n",
            "test \"explicit std vec_bool insert range helper\" ... ok\n",
            "test \"explicit std vec_bool replace helper\" ... ok\n",
            "test \"explicit std vec_bool replace range helper\" ... ok\n",
            "test \"explicit std vec_bool remove helper\" ... ok\n",
            "test \"explicit std vec_bool remove range helper\" ... ok\n",
            "test \"explicit std vec_bool real program helpers\" ... ok\n",
            "test \"explicit std vec_bool helpers all\" ... ok\n",
            "19 test(s) passed\n",
        ),
        "std import vec_bool project test",
    );
}

fn assert_project_std_import_vec_string_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert!(
        !project.join("src/vec_string.slo").exists(),
        "std import vec_string fixture must not use a source-root vec_string module copy"
    );
    assert!(
        !project.join("std/vec_string.slo").exists(),
        "std import vec_string fixture must use repo-root Slovo std/vec_string.slo, not a project-local copy"
    );

    let main = read(&project.join("src/main.slo"));
    assert!(
        main.starts_with("(module main)\n\n(import std.vec_string ("),
        "std import vec_string fixture must use explicit `std.vec_string` import syntax"
    );
    for helper in STANDARD_VEC_STRING_SOURCE_FACADE_ALPHA {
        assert!(
            main.contains(helper),
            "std import vec_string main fixture import/use is missing helper `{}`",
            helper
        );
    }

    let fmt = run_glagol([
        OsStr::new("fmt"),
        OsStr::new("--check"),
        project.as_os_str(),
    ]);
    assert_success_stdout(fmt, "", "std import vec_string project fmt");

    let slovo_vec_string = repo_root().join("lib/std/vec_string.slo");
    if !slovo_vec_string.exists() {
        eprintln!(
            "skipping std import vec_string check/test: missing `{}`",
            slovo_vec_string.display()
        );
        return;
    }

    let std_vec_string = read(&slovo_vec_string);
    assert!(
        std_vec_string.starts_with("(module vec_string (export "),
        "repo-root Slovo std/vec_string.slo must directly export imported helpers"
    );
    assert_std_only_contains(
        &std_vec_string,
        &[
            "std.vec.string.empty",
            "std.vec.string.append",
            "std.vec.string.len",
            "std.vec.string.index",
        ],
        "std/vec_string.slo must use only the existing promoted std.vec.string runtime names",
    );
    assert!(
        !std_vec_string.contains("(vec i32)")
            && !std_vec_string.contains("(vec i64)")
            && !std_vec_string.contains("(vec f64)")
            && !std_vec_string.contains("(vec bool)")
            && !std_vec_string.contains("(option i64)")
            && !std_vec_string.contains("(option f64)")
            && !std_vec_string.contains("(option bool)")
            && !std_vec_string.contains("(result i32")
            && !std_vec_string.contains("(result i64")
            && !std_vec_string.contains("(result f64")
            && !std_vec_string.contains("(result string")
            && !std_vec_string.contains("(result bool")
            && !std_vec_string.contains("capacity")
            && !std_vec_string.contains("reserve")
            && !std_vec_string.contains("shrink")
            && !std_vec_string.contains("sort")
            && !std_vec_string.contains("map")
            && !std_vec_string.contains("filter")
            && !std_vec_string.contains("concat_all"),
        "std vec_string source facade must stay narrow and explicit within concrete vec string plus option i32/string helpers"
    );
    for helper in STANDARD_VEC_STRING_SOURCE_FACADE_ALPHA {
        assert!(
            std_vec_string.contains(&format!("(fn {} ", helper)),
            "Slovo std/vec_string.slo is missing helper `{}`",
            helper
        );
    }

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std import vec_string project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit std vec_string empty len facade\" ... ok\n",
            "test \"explicit std vec_string direct at facade\" ... ok\n",
            "test \"explicit std vec_string builder helpers\" ... ok\n",
            "test \"explicit std vec_string query helpers\" ... ok\n",
            "test \"explicit std vec_string option query helpers\" ... ok\n",
            "test \"explicit std vec_string starts_with helper\" ... ok\n",
            "test \"explicit std vec_string ends_with helper\" ... ok\n",
            "test \"explicit std vec_string without_suffix helper\" ... ok\n",
            "test \"explicit std vec_string without_prefix helper\" ... ok\n",
            "test \"explicit std vec_string transform helpers\" ... ok\n",
            "test \"explicit std vec_string subvec helper\" ... ok\n",
            "test \"explicit std vec_string insert helper\" ... ok\n",
            "test \"explicit std vec_string insert range helper\" ... ok\n",
            "test \"explicit std vec_string replace helper\" ... ok\n",
            "test \"explicit std vec_string replace range helper\" ... ok\n",
            "test \"explicit std vec_string remove helper\" ... ok\n",
            "test \"explicit std vec_string remove range helper\" ... ok\n",
            "test \"explicit std vec_string real-program helpers\" ... ok\n",
            "test \"explicit std vec_string helpers all\" ... ok\n",
            "19 test(s) passed\n",
        ),
        "std import vec_string project test",
    );
}

fn assert_project_std_import_core_facade_tooling_matches_fixture(
    project: &Path,
    module: &str,
    helpers: &[&str],
    expected: &str,
) {
    assert_project_std_import_host_facade_shape(project, module, helpers);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std import core facade project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(test, expected, "std import core facade project test");
}

fn assert_project_std_import_host_facade_tooling_matches_fixture(
    project: &Path,
    module: &str,
    helpers: &[&str],
    expected: &str,
) {
    assert_project_std_import_host_facade_shape(project, module, helpers);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std import host facade project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(test, expected, "std import host facade project test");
}

fn assert_project_std_import_host_facade_shape(project: &Path, module: &str, helpers: &[&str]) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert!(
        !project.join(format!("src/{}.slo", module)).exists(),
        "std import {} fixture must use repo-root std/{}.slo, not a local copy",
        module,
        module
    );

    let main = read(&project.join("src/main.slo"));
    let slovo_source = read(&repo_root().join(format!("lib/std/{}.slo", module)));
    assert!(
        main.starts_with(&format!("(module main)\n\n(import std.{} (", module)),
        "std import {} fixture must use explicit `std.{}` import syntax",
        module,
        module
    );
    assert!(
        slovo_source.starts_with(&format!("(module {} (export ", module)),
        "repo-root Slovo std/{}.slo must directly export imported helpers",
        module
    );
    for helper in helpers {
        assert!(
            slovo_source.contains(&format!("(fn {} ", helper)),
            "Slovo std/{}.slo is missing helper `{}`",
            module,
            helper
        );
        assert!(
            main.contains(helper),
            "std import {} main fixture import/use is missing helper `{}`",
            module,
            helper
        );
    }
}

fn assert_installed_standard_library_discovery_is_promotable(repo: &Path) {
    let project_rs = read(&repo.join("compiler/src/project.rs"));

    assert!(
        project_rs.contains("env::current_exe()")
            && project_rs.contains("installed_standard_library_candidates")
            && project_rs.contains("../share/slovo/std"),
        "standard-library discovery must include executable-relative installed `share/slovo/std`"
    );
    assert!(
        project_rs.contains("env::split_paths(&paths)"),
        "SLOVO_STD_PATH must support OS path-list discovery roots"
    );
    assert!(
        project_rs.contains(".find(|path| path.is_file())"),
        "standard-library discovery must choose the first candidate containing the requested module"
    );
    assert!(
        project_rs.contains("set SLOVO_STD_PATH, install `share/slovo/std`"),
        "missing standard-library diagnostics must mention installed stdlib discovery"
    );
}

fn assert_workspace_std_import_option_tooling_matches_fixture(workspace: &Path) {
    let app = workspace.join("packages/app");
    let main = app.join("src/main.slo");
    assert!(workspace.join("slovo.toml").is_file());
    assert!(app.join("slovo.toml").is_file());
    assert!(main.is_file());
    assert!(
        !app.join("src/option.slo").exists(),
        "workspace std import option fixture must use repo-root std/option.slo, not a local copy"
    );
    assert!(
        !app.join("src/bridge.slo").exists(),
        "workspace std import option fixture must not depend on a local bridge shim"
    );

    let main_source = read(&main);
    assert!(
        main_source.starts_with("(module main)\n\n(import std.option ("),
        "workspace std import option fixture must use explicit `std.option` import syntax"
    );
    for helper in ["is_some_i32", "is_none_i32", "unwrap_or_i32"] {
        assert!(
            main_source.matches(helper).count() >= 2,
            "workspace std import option fixture import/use is missing helper `{}`",
            helper
        );
    }
    for helper in [
        "some_or_err_i32",
        "some_or_err_i64",
        "some_or_err_f64",
        "some_or_err_bool",
        "some_or_err_string",
    ] {
        assert!(
            main_source.contains(helper),
            "workspace std import option main/import is missing bridge helper `{}`",
            helper
        );
    }

    let check = run_glagol([OsStr::new("check"), workspace.as_os_str()]);
    assert_success_stdout(check, "", "workspace std import option check");

    let test = run_glagol([OsStr::new("test"), workspace.as_os_str()]);
    assert_success_stdout(
        test,
        "test \"workspace std option import\" ... ok\n1 test(s) passed\n",
        "workspace std import option test",
    );
}

fn assert_standard_math_source_helpers_alpha(project: &Path) {
    let math = read(&project.join("src/math.slo"));
    let main = read(&project.join("src/main.slo"));
    let math_export_line = math.lines().next().unwrap_or_default();

    assert!(
        math.starts_with("(module math (export "),
        "local math fixture must stay an explicitly exported local module"
    );
    assert!(
        main.starts_with("(module main)\n\n(import math ("),
        "local math fixture must stay an explicit local import"
    );
    assert!(
        !math.contains("std.") && !main.contains("std."),
        "standard math source helper fixture must not use compiler-known std runtime names"
    );

    for helper in STANDARD_MATH_SOURCE_HELPERS_ALPHA {
        assert!(
            math.contains(&format!("(fn {} ", helper)),
            "local math fixture is missing helper `{}`",
            helper
        );
        assert!(
            math_export_line.contains(helper),
            "local math fixture export list is missing helper `{}`",
            helper
        );
        assert!(
            main.matches(helper).count() >= 2,
            "main fixture import/use is missing helper `{}`",
            helper
        );
    }
}

fn normalize_local_math_fixture_helpers(source: &str) -> String {
    let helper_source = source
        .split("\n(fn i32_helpers_ok")
        .next()
        .expect("split local math helper source");
    let mut lines = helper_source.lines();
    let first = lines.next().unwrap_or_default();
    assert!(
        first.starts_with("(module math (export "),
        "local math fixture must start with an explicit export module form"
    );

    let mut normalized = first.to_string();
    for line in lines {
        normalized.push('\n');
        normalized.push_str(line);
    }
    normalized.trim_end().to_string()
}

fn normalize_local_vec_i32_fixture_helpers(source: &str) -> String {
    source
        .replace(
            "(import option (some_i32 none_i32))",
            "(import std.option (some_i32 none_i32))",
        )
        .trim_end()
        .to_string()
}

fn assert_math_loop_benchmark_scaffold_is_promotable(root: &Path) {
    for relative in [
        "slovo.toml",
        "README.md",
        "benchmark.json",
        "src/main.slo",
        "clojure/math_loop.clj",
        "common-lisp/math_loop.lisp",
        "c/math_loop.c",
        "rust/math_loop.rs",
        "python/math_loop.py",
        "run.py",
    ] {
        assert!(
            root.join(relative).is_file(),
            "math-loop benchmark scaffold is missing `{}`",
            relative
        );
    }

    let slovo = read(&root.join("src/main.slo"));
    let readme = read(&root.join("README.md"));
    let spec = read(&root.join("benchmark.json"));
    let runner = read(&root.join("run.py"));
    let c = read(&root.join("c/math_loop.c"));
    let rust = read(&root.join("rust/math_loop.rs"));
    let python = read(&root.join("python/math_loop.py"));
    let clojure = read(&root.join("clojure/math_loop.clj"));
    let common_lisp = read(&root.join("common-lisp/math_loop.lisp"));

    assert!(
        spec.contains(r#""benchmark": "math-loop""#)
            && spec.contains(r#""source_stem": "math_loop""#)
            && spec.contains(r#""expected_checksum": "5000001""#)
            && spec.contains(r#""hot_loop_count": 10000000"#)
            && spec.contains(r#""hot_expected_checksum": "50000001""#),
        "math-loop benchmark metadata must keep benchmark identity and cold/hot checksums"
    );
    assert!(
        readme.contains("not a published benchmark result")
            && readme.contains("loop count")
            && readme.contains("run.py --list"),
        "math-loop benchmark README must document local-only timing boundaries"
    );
    assert!(
        slovo.contains("(fn math_loop ((limit i32)) -> i32")
            && slovo.contains("(std.io.read_stdin_result)")
            && slovo.contains("(std.process.arg 1)")
            && slovo.contains("(std.string.parse_i32_result text)")
            && slovo.contains("(std.io.print_i32 result)"),
        "Slovo math-loop benchmark must keep runtime loop-count input and checksum output"
    );
    assert!(
        runner.contains("local-machine comparison only")
            || runner.contains("from runner import main"),
        "math-loop runner must stay an explicit local timing harness wrapper"
    );
    for (language, source) in [
        ("C", c),
        ("Rust", rust),
        ("Python", python),
        ("Clojure", clojure),
        ("Common Lisp", common_lisp),
    ] {
        assert!(
            (source.contains("EXPECTED_CHECKSUM")
                || source.contains("expected-checksum")
                || source.contains("+expected-checksum+"))
                && (source.contains("LOOP_COUNT")
                    || source.contains("loop-count")
                    || source.contains("+loop-count+")),
            "{} math-loop fixture must keep shared constants",
            language
        );
    }
}

fn assert_named_benchmark_scaffold_is_promotable(root: &Path, name: &str, source_stem: &str) {
    for relative in [
        "slovo.toml",
        "README.md",
        "benchmark.json",
        "src/main.slo",
        "run.py",
    ] {
        assert!(
            root.join(relative).is_file(),
            "{} benchmark scaffold is missing `{}`",
            name,
            relative
        );
    }

    for relative in [
        format!("clojure/{}.clj", source_stem),
        format!("common-lisp/{}.lisp", source_stem),
        format!("c/{}.c", source_stem),
        format!("rust/{}.rs", source_stem),
        format!("python/{}.py", source_stem),
    ] {
        assert!(
            root.join(&relative).is_file(),
            "{} benchmark scaffold is missing `{}`",
            name,
            relative
        );
    }

    let spec = read(&root.join("benchmark.json"));
    let slovo = read(&root.join("src/main.slo"));
    let readme = read(&root.join("README.md"));
    let runner = read(&root.join("run.py"));

    assert!(
        spec.contains(&format!(r#""benchmark": "{}""#, name))
            && spec.contains(&format!(r#""source_stem": "{}""#, source_stem))
            && spec.contains(r#""loop_count": 1000000"#)
            && spec.contains(r#""expected_checksum": "#)
            && spec.contains(r#""hot_loop_count": 10000000"#)
            && spec.contains(r#""hot_expected_checksum": "#),
        "{} benchmark metadata must keep identity, source stem, cold/hot loop counts, and checksums",
        name
    );
    assert!(
        readme.contains("not a published benchmark result")
            && readme.contains("same machine")
            && readme.contains("runtime"),
        "{} benchmark README must document local-only timing boundaries",
        name
    );
    assert!(
        slovo.contains("(std.io.read_stdin_result)")
            && slovo.contains("(std.process.arg ")
            && slovo.contains("(std.io.print_i32 result)")
            && runner.contains("from runner import main"),
        "{} benchmark must keep runtime loop-count input and shared runner wrapper",
        name
    );
}

fn assert_project_std_layout_local_option_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/option.slo").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert_standard_option_source_helpers_alpha(project);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std layout local option project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit local option i32 observation\" ... ok\n",
            "test \"explicit local option i32 unwrap_some\" ... ok\n",
            "test \"explicit local option i32 unwrap_or\" ... ok\n",
            "test \"explicit local option i32 some_or_err ok\" ... ok\n",
            "test \"explicit local option i32 some_or_err err\" ... ok\n",
            "test \"explicit local option u32 observation\" ... ok\n",
            "test \"explicit local option u32 unwrap_some\" ... ok\n",
            "test \"explicit local option u32 unwrap_or\" ... ok\n",
            "test \"explicit local option u32 some_or_err ok\" ... ok\n",
            "test \"explicit local option u32 some_or_err err\" ... ok\n",
            "test \"explicit local option i64 observation\" ... ok\n",
            "test \"explicit local option i64 unwrap_some\" ... ok\n",
            "test \"explicit local option i64 unwrap_or\" ... ok\n",
            "test \"explicit local option i64 some_or_err ok\" ... ok\n",
            "test \"explicit local option i64 some_or_err err\" ... ok\n",
            "test \"explicit local option u64 observation\" ... ok\n",
            "test \"explicit local option u64 unwrap_some\" ... ok\n",
            "test \"explicit local option u64 unwrap_or\" ... ok\n",
            "test \"explicit local option u64 some_or_err ok\" ... ok\n",
            "test \"explicit local option u64 some_or_err err\" ... ok\n",
            "test \"explicit local option f64 observation\" ... ok\n",
            "test \"explicit local option f64 unwrap_some\" ... ok\n",
            "test \"explicit local option f64 unwrap_or\" ... ok\n",
            "test \"explicit local option f64 some_or_err ok\" ... ok\n",
            "test \"explicit local option f64 some_or_err err\" ... ok\n",
            "test \"explicit local option bool observation\" ... ok\n",
            "test \"explicit local option bool unwrap_some\" ... ok\n",
            "test \"explicit local option bool unwrap_or\" ... ok\n",
            "test \"explicit local option bool some_or_err ok\" ... ok\n",
            "test \"explicit local option bool some_or_err err\" ... ok\n",
            "test \"explicit local option string observation\" ... ok\n",
            "test \"explicit local option string unwrap_some\" ... ok\n",
            "test \"explicit local option string unwrap_or\" ... ok\n",
            "test \"explicit local option string some_or_err ok\" ... ok\n",
            "test \"explicit local option string some_or_err err\" ... ok\n",
            "test \"explicit local option helpers all\" ... ok\n",
            "36 test(s) passed\n",
        ),
        "std layout local option project test",
    );
}

fn assert_standard_option_source_helpers_alpha(project: &Path) {
    let option = read(&project.join("src/option.slo"));
    let main = read(&project.join("src/main.slo"));

    assert!(
        option.starts_with("(module option (export "),
        "local option fixture must stay an explicitly exported local module"
    );
    assert!(
        main.starts_with("(module main)\n\n(import option ("),
        "local option fixture must stay an explicit local import"
    );
    assert!(
        !option.contains("std.") && !main.contains("std."),
        "standard option source helper fixture must not use compiler-known std runtime names"
    );
    assert!(
        !main.contains("(import std") && !main.contains("(import slovo.std"),
        "standard option source helper fixture must not use automatic std imports"
    );
    assert!(
        !option.contains("std.result.")
            && !main.contains("std.result.")
            && !main.contains("(import result"),
        "standard option source helper fixture must bridge through raw concrete result forms, not compiler-known std.result names or a separate local result module"
    );

    for helper in STANDARD_OPTION_SOURCE_HELPERS_ALPHA {
        assert!(
            option.contains(&format!("(fn {} ", helper)),
            "local option fixture is missing helper `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "main fixture import/use is missing helper `{}`",
            helper
        );
    }
    for helper in STANDARD_OPTION_RESULT_BRIDGE_HELPERS_ALPHA {
        assert!(
            option.contains(&format!("(fn {} ", helper)),
            "local option fixture is missing bridge helper `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "main fixture import/use is missing bridge helper `{}`",
            helper
        );
    }
}

fn assert_project_std_layout_local_num_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/num.slo").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert_standard_num_source_fallback_helpers_alpha(project);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std layout local num project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit local num widening\" ... ok\n",
            "test \"explicit local num checked conversions\" ... ok\n",
            "test \"explicit local num to string\" ... ok\n",
            "test \"explicit local num checked fallbacks\" ... ok\n",
            "test \"explicit local num helpers all\" ... ok\n",
            "5 test(s) passed\n",
        ),
        "std layout local num project test",
    );
}

fn assert_standard_num_source_fallback_helpers_alpha(project: &Path) {
    let num_source = read(&project.join("src/num.slo"));
    let main = read(&project.join("src/main.slo"));

    assert!(
        num_source.starts_with("(module num (export "),
        "local num fixture must stay an explicitly exported local module"
    );
    assert!(
        main.starts_with("(module main)\n\n(import num ("),
        "local num fixture must stay an explicit local import"
    );
    assert!(
        !main.contains("(import std") && !main.contains("(import slovo.std"),
        "standard num source facade fixture must not use automatic std imports"
    );
    assert_std_only_contains(
        &num_source,
        &[
            "std.num.i32_to_i64",
            "std.num.i32_to_f64",
            "std.num.i64_to_f64",
            "std.num.i64_to_i32_result",
            "std.num.f64_to_i32_result",
            "std.num.f64_to_i64_result",
            "std.num.i32_to_string",
            "std.num.u32_to_string",
            "std.num.i64_to_string",
            "std.num.u64_to_string",
            "std.num.f64_to_string",
        ],
        "standard num source facade fixture must use only existing std.num runtime names",
    );
    assert!(
        !main.contains("std."),
        "standard num source facade main fixture must remain local and explicit"
    );
    assert!(
        !num_source.contains("saturat")
            && !num_source.contains("round")
            && !num_source.contains("floor")
            && !num_source.contains("ceil")
            && !num_source.contains("generic")
            && !main.contains("saturat")
            && !main.contains("round")
            && !main.contains("floor")
            && !main.contains("ceil")
            && !main.contains("generic"),
        "standard num source facade fixture must not claim deferred numeric conversion policies or generic abstractions"
    );
    for helper in STANDARD_NUM_SOURCE_FACADE_ALPHA {
        assert!(
            num_source.contains(&format!("(fn {} ", helper)),
            "local num fixture is missing facade `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "main fixture import/use is missing facade `{}`",
            helper
        );
    }
}

fn assert_project_std_layout_local_process_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/process.slo").is_file());
    assert!(project.join("src/string.slo").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert_standard_process_source_fallback_helpers_alpha(project);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std layout local process project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit local process argc facade\" ... ok\n",
            "test \"explicit local process arg result oob facade\" ... ok\n",
            "test \"explicit local process arg option facade\" ... ok\n",
            "test \"explicit local process has arg facade\" ... ok\n",
            "test \"explicit local process arg fallback missing facade\" ... ok\n",
            "test \"explicit local process arg fallback present facade\" ... ok\n",
            "test \"explicit local process arg i32 missing facade\" ... ok\n",
            "test \"explicit local process arg i32 invalid fallback facade\" ... ok\n",
            "test \"explicit local process arg u32 missing facade\" ... ok\n",
            "test \"explicit local process arg u32 invalid fallback facade\" ... ok\n",
            "test \"explicit local process arg i64 missing facade\" ... ok\n",
            "test \"explicit local process arg i64 invalid fallback facade\" ... ok\n",
            "test \"explicit local process arg u64 missing facade\" ... ok\n",
            "test \"explicit local process arg u64 invalid fallback facade\" ... ok\n",
            "test \"explicit local process arg f64 missing facade\" ... ok\n",
            "test \"explicit local process arg f64 invalid fallback facade\" ... ok\n",
            "test \"explicit local process arg bool missing facade\" ... ok\n",
            "test \"explicit local process arg bool invalid fallback facade\" ... ok\n",
            "test \"explicit local process typed option facade\" ... ok\n",
            "test \"explicit local process typed custom fallback facade\" ... ok\n",
            "test \"explicit local process facade all\" ... ok\n",
            "21 test(s) passed\n",
        ),
        "std layout local process project test",
    );
}

fn assert_standard_process_source_fallback_helpers_alpha(project: &Path) {
    let process = read(&project.join("src/process.slo"));
    let result = read(&project.join("src/result.slo"));
    let string = read(&project.join("src/string.slo"));
    let main = read(&project.join("src/main.slo"));

    assert!(
        process.starts_with("(module process (export "),
        "local process fixture must stay an explicitly exported local module"
    );
    assert!(
        string.starts_with("(module string (export "),
        "local process string fixture must stay an explicitly exported local module"
    );
    assert!(
        result.starts_with("(module result (export "),
        "local process result fixture must stay an explicitly exported local module"
    );
    assert!(
        main.starts_with("(module main)\n\n(import process ("),
        "local process fixture must stay an explicit local import"
    );
    assert!(
        !main.contains("(import std") && !main.contains("(import slovo.std"),
        "standard process source facade fixture must not use automatic std imports"
    );
    assert!(
        process.contains("(import result (ok_or_none_string ok_or_none_i32 ok_or_none_u32 ok_or_none_i64 ok_or_none_u64 ok_or_none_f64 ok_or_none_bool))")
            && process.contains("(import string (parse_i32_result parse_u32_result parse_i64_result parse_u64_result parse_f64_result parse_bool_result))")
            && !process.contains("std.string.")
            && !process.contains("(import std.")
            && !main.contains("std."),
        "standard process source facade fixture must stay local while using the promoted result bridge and parse result calls"
    );
    assert_std_only_contains(
        &process,
        &[
            "std.process.arg_result",
            "std.process.argc",
            "std.process.arg",
        ],
        "standard process source facade fixture must use only existing std.process runtime names directly",
    );
    assert_std_only_contains(
        &string,
        &[
            "std.string.len",
            "std.string.concat",
            "std.string.parse_i32_result",
            "std.string.parse_u32_result",
            "std.string.parse_i64_result",
            "std.string.parse_u64_result",
            "std.string.parse_f64_result",
            "std.string.parse_bool_result",
        ],
        "standard process source local string fixture must use only existing std.string runtime names",
    );
    assert!(
        !main.contains("std."),
        "standard process source facade main fixture must remain local and explicit"
    );
    assert!(
        !process.contains("spawn")
            && !process.contains("exit")
            && !process.contains("cwd")
            && !process.contains("signal")
            && !process.contains("shell")
            && !process.contains("flag"),
        "standard process source facade fixture must not claim deferred process or CLI framework APIs"
    );

    for helper in STANDARD_PROCESS_SOURCE_FACADE_ALPHA {
        assert!(
            process.contains(&format!("(fn {} ", helper)),
            "local process fixture is missing facade `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "main fixture import/use is missing facade `{}`",
            helper
        );
    }
    for helper in STANDARD_STRING_PARSE_RESULT_HELPERS_ALPHA {
        assert!(
            string.contains(&format!("(fn {} ", helper)),
            "local process string fixture is missing parse helper `{}`",
            helper
        );
    }
    for helper in [
        "ok_or_none_string",
        "ok_or_none_i32",
        "ok_or_none_u32",
        "ok_or_none_i64",
        "ok_or_none_u64",
        "ok_or_none_f64",
        "ok_or_none_bool",
    ] {
        assert!(
            result.contains(&format!("(fn {} ", helper)),
            "local process result fixture is missing bridge helper `{}`",
            helper
        );
    }
}

fn assert_project_std_layout_local_cli_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/cli.slo").is_file());
    assert!(project.join("src/process.slo").is_file());
    assert!(project.join("src/result.slo").is_file());
    assert!(project.join("src/string.slo").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert_standard_cli_source_fallback_helpers_alpha(project);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std layout local cli project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        STANDARD_CLI_LOCAL_SOURCE_FALLBACK_EXPECTED_OUTPUT,
        "std layout local cli project test",
    );
}

fn assert_standard_cli_source_fallback_helpers_alpha(project: &Path) {
    let cli = read(&project.join("src/cli.slo"));
    let process = read(&project.join("src/process.slo"));
    let result = read(&project.join("src/result.slo"));
    let string = read(&project.join("src/string.slo"));
    let main = read(&project.join("src/main.slo"));

    assert!(
        cli.starts_with("(module cli (export "),
        "local cli fixture must stay an explicitly exported local module"
    );
    assert!(
        process.starts_with("(module process (export "),
        "local cli process fixture must stay an explicitly exported local module"
    );
    assert!(
        result.starts_with("(module result (export "),
        "local cli result fixture must stay an explicitly exported local module"
    );
    assert!(
        string.starts_with("(module string (export "),
        "local cli string fixture must stay an explicitly exported local module"
    );
    assert!(
        main.starts_with("(module main)\n\n(import cli ("),
        "local cli fixture must stay an explicit local import"
    );
    assert!(
        !main.contains("(import std") && !main.contains("(import slovo.std"),
        "standard cli source fallback fixture must not use automatic std imports"
    );
    assert!(
        cli.contains("(import process (arg_result))")
            && cli.contains("(import result (ok_or_none_string ok_or_none_i32 ok_or_none_u32 ok_or_none_i64 ok_or_none_u64 ok_or_none_f64 ok_or_none_bool))")
            && cli.contains(
                "(import string (parse_i32_result parse_u32_result parse_i64_result parse_u64_result parse_f64_result parse_bool_result))"
            )
            && !cli.contains("(import std.")
            && !main.contains("std."),
        "standard cli source fallback fixture must stay local while using local process, result, and parse helper imports"
    );
    assert!(
        !cli.contains("std."),
        "standard cli source fallback module must stay fully local and explicit"
    );
    assert_std_only_contains(
        &process,
        &[
            "std.process.arg_result",
            "std.process.argc",
            "std.process.arg",
            "std.string.parse_i32_result",
            "std.string.parse_u32_result",
            "std.string.parse_i64_result",
            "std.string.parse_u64_result",
            "std.string.parse_f64_result",
            "std.string.parse_bool_result",
        ],
        "standard cli source local process fixture must use only existing std.process runtime names",
    );
    assert_std_only_contains(
        &string,
        &[
            "std.string.len",
            "std.string.concat",
            "std.string.parse_i32_result",
            "std.string.parse_u32_result",
            "std.string.parse_i64_result",
            "std.string.parse_u64_result",
            "std.string.parse_f64_result",
            "std.string.parse_bool_result",
        ],
        "standard cli source local string fixture must use only existing std.string runtime names",
    );
    assert!(
        !process.contains("spawn")
            && !process.contains("exit")
            && !process.contains("cwd")
            && !process.contains("signal")
            && !process.contains("shell")
            && !process.contains("flag"),
        "standard cli source local process fixture must stay narrow and avoid deferred process APIs"
    );

    for helper in STANDARD_CLI_SOURCE_FACADE_ALPHA {
        assert!(
            cli.contains(&format!("(fn {} ", helper)),
            "local cli fixture is missing facade `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "main fixture import/use is missing facade `{}`",
            helper
        );
    }
    assert!(
        process.contains("(fn arg_result "),
        "local cli process fixture is missing arg_result helper"
    );
    for helper in [
        "ok_or_none_string",
        "ok_or_none_i32",
        "ok_or_none_u32",
        "ok_or_none_i64",
        "ok_or_none_u64",
        "ok_or_none_f64",
        "ok_or_none_bool",
    ] {
        assert!(
            result.contains(&format!("(fn {} ", helper)),
            "local cli result fixture is missing bridge helper `{}`",
            helper
        );
    }
    for helper in STANDARD_STRING_PARSE_RESULT_HELPERS_ALPHA {
        assert!(
            string.contains(&format!("(fn {} ", helper)),
            "local cli string fixture is missing parse helper `{}`",
            helper
        );
    }
}

fn assert_project_std_layout_local_string_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/result.slo").is_file());
    assert!(project.join("src/string.slo").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert_standard_string_source_fallback_helpers_alpha(project);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std layout local string project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit local string len concat\" ... ok\n",
            "test \"explicit local string byte_at_result wrapper\" ... ok\n",
            "test \"explicit local string slice_result wrapper\" ... ok\n",
            "test \"explicit local string boundary wrappers\" ... ok\n",
            "test \"explicit local string parse result wrappers\" ... ok\n",
            "test \"explicit local string parse option wrappers\" ... ok\n",
            "test \"explicit local string parse integer fallbacks\" ... ok\n",
            "test \"explicit local string parse float bool fallbacks\" ... ok\n",
            "test \"explicit local string parse custom fallbacks\" ... ok\n",
            "test \"explicit local string helpers all\" ... ok\n",
            "10 test(s) passed\n",
        ),
        "std layout local string project test",
    );
}

fn assert_standard_string_source_fallback_helpers_alpha(project: &Path) {
    let string = read(&project.join("src/string.slo"));
    let main = read(&project.join("src/main.slo"));

    assert!(
        string.starts_with("(module string (export "),
        "local string fixture must stay an explicitly exported local module"
    );
    assert!(
        main.starts_with("(module main)\n\n(import string ("),
        "local string fixture must stay an explicit local import"
    );
    assert!(
        !main.contains("(import std") && !main.contains("(import slovo.std"),
        "standard string source helper fixture must not use automatic std imports"
    );
    assert_std_only_contains(
        &string,
        &[
            "std.string.parse_bool_result",
            "std.string.parse_f64_result",
            "std.string.parse_u64_result",
            "std.string.parse_i64_result",
            "std.string.parse_u32_result",
            "std.string.parse_i32_result",
            "std.string.byte_at_result",
            "std.string.slice_result",
            "std.string.starts_with",
            "std.string.ends_with",
            "std.string.concat",
            "std.string.len",
        ],
        "standard string source helper fixture must use only existing std.string runtime names",
    );
    assert!(
        !string.contains("trim")
            && !string.contains("locale")
            && !string.contains("unicode")
            && !string.contains("bytes")
            && !string.contains("case_insensitive")
            && !string.contains("host_error"),
        "standard string source helper fixture must not claim deferred parsing or richer error APIs"
    );

    for helper in STANDARD_STRING_SOURCE_FACADE_ALPHA {
        assert!(
            string.contains(&format!("(fn {} ", helper)),
            "local string fixture is missing helper `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "main fixture import/use is missing helper `{}`",
            helper
        );
    }
}

fn assert_project_std_layout_local_time_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/time.slo").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert_standard_time_source_facade_alpha(project);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std layout local time project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit local time monotonic facade\" ... ok\n",
            "test \"explicit local time sleep zero facade\" ... ok\n",
            "test \"explicit local time facade all\" ... ok\n",
            "3 test(s) passed\n",
        ),
        "std layout local time project test",
    );
}

fn assert_standard_time_source_facade_alpha(project: &Path) {
    let time = read(&project.join("src/time.slo"));
    let main = read(&project.join("src/main.slo"));

    assert!(
        time.starts_with("(module time (export "),
        "local time fixture must stay an explicitly exported local module"
    );
    assert!(
        main.starts_with("(module main)\n\n(import time ("),
        "local time fixture must stay an explicit local import"
    );
    assert!(
        !main.contains("(import std") && !main.contains("(import slovo.std"),
        "standard time source facade fixture must not use automatic std imports"
    );

    let mut non_time_std = time.clone();
    for allowed in ["std.time.monotonic_ms", "std.time.sleep_ms"] {
        non_time_std = non_time_std.replace(allowed, "");
    }
    assert!(
        !non_time_std.contains("std.") && !main.contains("std."),
        "standard time source facade fixture must use only existing std.time runtime names"
    );
    assert!(
        time.contains("(fn sleep_ms_zero () -> i32\n  (std.time.sleep_ms 0)\n  0)"),
        "standard time source facade fixture must adapt unit-return sleep_ms to source i32 return"
    );
    assert!(
        !time.contains("std.time.now")
            && !time.contains("calendar")
            && !time.contains("timezone")
            && !time.contains("async")
            && !time.contains("cancel")
            && !time.contains("schedule"),
        "standard time source facade fixture must not claim deferred time APIs or scheduling semantics"
    );

    for helper in STANDARD_TIME_SOURCE_FACADE_ALPHA {
        assert!(
            time.contains(&format!("(fn {} ", helper)),
            "local time fixture is missing facade `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "main fixture import/use is missing facade `{}`",
            helper
        );
    }
}

fn assert_project_std_layout_local_random_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/random.slo").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert_standard_random_source_facade_alpha(project);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std layout local random project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"local random i32 non-negative facade\" ... ok\n",
            "test \"explicit local random i32 non-negative facade\" ... ok\n",
            "test \"explicit local random facade all\" ... ok\n",
            "3 test(s) passed\n",
        ),
        "std layout local random project test",
    );
}

fn assert_standard_random_source_facade_alpha(project: &Path) {
    let random = read(&project.join("src/random.slo"));
    let main = read(&project.join("src/main.slo"));

    assert!(
        random.starts_with("(module random (export "),
        "local random fixture must stay an explicitly exported local module"
    );
    assert!(
        main.starts_with("(module main)\n\n(import random ("),
        "local random fixture must stay an explicit local import"
    );
    assert!(
        !main.contains("(import std") && !main.contains("(import slovo.std"),
        "standard random source facade fixture must not use automatic std imports"
    );
    assert!(
        random.contains("(std.random.i32)"),
        "standard random source facade fixture must use the promoted std.random.i32 call"
    );
    assert_std_only_contains(
        &random,
        &["std.random.i32"],
        "standard random source facade fixture must use only existing std.random runtime names",
    );
    assert!(
        !main.contains("std.") && !main.contains("seed") && !main.contains("crypto"),
        "standard random source facade main fixture must remain local and narrow"
    );
    for helper in STANDARD_RANDOM_SOURCE_FACADE_ALPHA {
        assert!(
            random.contains(&format!("(fn {} ", helper)),
            "local random fixture is missing facade `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "main fixture import/use is missing facade `{}`",
            helper
        );
    }
}

fn assert_project_std_layout_local_env_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/env.slo").is_file());
    assert!(project.join("src/result.slo").is_file());
    assert!(project.join("src/string.slo").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert_standard_env_source_facade_alpha(project);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std layout local env project check");

    let test = run_glagol_configured([OsStr::new("test"), project.as_os_str()], |command| {
        configure_standard_local_env(command);
    });
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit local env get missing facade\" ... ok\n",
            "test \"explicit local env get result missing facade\" ... ok\n",
            "test \"explicit local env has missing facade\" ... ok\n",
            "test \"explicit local env get or missing facade\" ... ok\n",
            "test \"explicit local env get option missing facade\" ... ok\n",
            "test \"explicit local env has present facade\" ... ok\n",
            "test \"explicit local env get or present facade\" ... ok\n",
            "test \"explicit local env get option present facade\" ... ok\n",
            "test \"explicit local env get i32 result present facade\" ... ok\n",
            "test \"explicit local env get i32 or zero invalid facade\" ... ok\n",
            "test \"explicit local env get u32 result present facade\" ... ok\n",
            "test \"explicit local env get u32 or zero invalid facade\" ... ok\n",
            "test \"explicit local env get i64 result present facade\" ... ok\n",
            "test \"explicit local env get i64 or zero missing facade\" ... ok\n",
            "test \"explicit local env get u64 result present facade\" ... ok\n",
            "test \"explicit local env get u64 or zero missing facade\" ... ok\n",
            "test \"explicit local env get f64 result present facade\" ... ok\n",
            "test \"explicit local env get f64 or zero invalid facade\" ... ok\n",
            "test \"explicit local env get bool result present facade\" ... ok\n",
            "test \"explicit local env get bool or false invalid facade\" ... ok\n",
            "test \"explicit local env typed option facade\" ... ok\n",
            "test \"explicit local env typed custom fallback facade\" ... ok\n",
            "test \"explicit local env facade all\" ... ok\n",
            "23 test(s) passed\n",
        ),
        "std layout local env project test",
    );
}

fn assert_standard_env_source_facade_alpha(project: &Path) {
    let env_source = read(&project.join("src/env.slo"));
    let result_source = read(&project.join("src/result.slo"));
    let string_source = read(&project.join("src/string.slo"));
    let main = read(&project.join("src/main.slo"));

    assert!(
        env_source.starts_with("(module env (export "),
        "local env fixture must stay an explicitly exported local module"
    );
    assert!(
        string_source.starts_with("(module string (export "),
        "local env string fixture must stay an explicitly exported local module"
    );
    assert!(
        result_source.starts_with("(module result (export "),
        "local env result fixture must stay an explicitly exported local module"
    );
    assert!(
        main.starts_with("(module main)\n\n(import env ("),
        "local env fixture must stay an explicit local import"
    );
    assert!(
        !main.contains("(import std") && !main.contains("(import slovo.std"),
        "standard env source facade fixture must not use automatic std imports"
    );
    assert!(
        env_source.contains("(import result (ok_or_none_string ok_or_none_i32 ok_or_none_u32 ok_or_none_i64 ok_or_none_u64 ok_or_none_f64 ok_or_none_bool))")
            && env_source.contains("(import string (parse_i32_result parse_u32_result parse_i64_result parse_u64_result parse_f64_result parse_bool_result))")
            && !env_source.contains("std.string.")
            && !env_source.contains("(import std.")
            && !main.contains("std.")
            && env_source.contains("(std.env.get name)")
            && env_source.contains("(std.env.get_result name)"),
        "standard env source facade fixture must stay local while using the promoted env lookup, result bridge, and parse result calls"
    );
    assert_std_only_contains(
        &env_source,
        &["std.env.get_result", "std.env.get"],
        "standard env source facade fixture must use only existing std.env runtime names directly",
    );
    assert_std_only_contains(
        &string_source,
        &[
            "std.string.len",
            "std.string.concat",
            "std.string.parse_i32_result",
            "std.string.parse_u32_result",
            "std.string.parse_i64_result",
            "std.string.parse_u64_result",
            "std.string.parse_f64_result",
            "std.string.parse_bool_result",
        ],
        "standard env source local string fixture must use only existing std.string runtime names",
    );
    assert!(
        !main.contains("std.")
            && main.contains(STANDARD_ENV_MISSING_NAME)
            && main.contains(STANDARD_ENV_PRESENT_NAME)
            && main.contains(STANDARD_ENV_PRESENT_VALUE),
        "standard env source facade main fixture must remain local and deterministic"
    );
    assert!(
        main.contains(STANDARD_ENV_PRESENT_I32_NAME)
            && main.contains(STANDARD_ENV_PRESENT_U32_NAME)
            && main.contains(STANDARD_ENV_PRESENT_I64_NAME)
            && main.contains(STANDARD_ENV_PRESENT_U64_NAME)
            && main.contains(STANDARD_ENV_PRESENT_F64_NAME)
            && main.contains(STANDARD_ENV_PRESENT_BOOL_NAME)
            && main.contains(STANDARD_ENV_INVALID_NAME),
        "standard env source facade main fixture must cover deterministic typed env names"
    );
    for helper in STANDARD_ENV_SOURCE_FACADE_ALPHA {
        assert!(
            env_source.contains(&format!("(fn {} ", helper)),
            "local env fixture is missing facade `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "main fixture import/use is missing facade `{}`",
            helper
        );
    }
    for helper in [
        "parse_i32_result",
        "parse_u32_result",
        "parse_i64_result",
        "parse_u64_result",
        "parse_f64_result",
        "parse_bool_result",
    ] {
        assert!(
            string_source.contains(&format!("(fn {} ", helper)),
            "local env string fixture is missing parse helper `{}`",
            helper
        );
    }
    for helper in [
        "ok_or_none_string",
        "ok_or_none_i32",
        "ok_or_none_u32",
        "ok_or_none_i64",
        "ok_or_none_u64",
        "ok_or_none_f64",
        "ok_or_none_bool",
    ] {
        assert!(
            result_source.contains(&format!("(fn {} ", helper)),
            "local env result fixture is missing bridge helper `{}`",
            helper
        );
    }
}

fn assert_project_std_layout_local_fs_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/fs.slo").is_file());
    assert!(project.join("src/result.slo").is_file());
    assert!(project.join("src/string.slo").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert_standard_fs_source_facade_alpha(project);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std layout local fs project check");

    let test_cwd = temp_root("std-layout-local-fs");
    let test = run_glagol_in([OsStr::new("test"), project.as_os_str()], &test_cwd);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit local fs write text status facade\" ... ok\n",
            "test \"explicit local fs read text facade\" ... ok\n",
            "test \"explicit local fs write text result facade\" ... ok\n",
            "test \"explicit local fs read text result facade\" ... ok\n",
            "test \"explicit local fs read text via handle facade\" ... ok\n",
            "test \"explicit local fs open read close handle facade\" ... ok\n",
            "test \"explicit local fs closed handle read err facade\" ... ok\n",
            "test \"explicit local fs invalid close err facade\" ... ok\n",
            "test \"explicit local fs exists file facade\" ... ok\n",
            "test \"explicit local fs exists missing facade\" ... ok\n",
            "test \"explicit local fs create dir result facade\" ... ok\n",
            "test \"explicit local fs is dir facade\" ... ok\n",
            "test \"explicit local fs create dir ok facade\" ... ok\n",
            "test \"explicit local fs remove file result facade\" ... ok\n",
            "test \"explicit local fs remove file ok facade\" ... ok\n",
            "test \"explicit local fs read text option missing facade\" ... ok\n",
            "test \"explicit local fs read text option present facade\" ... ok\n",
            "test \"explicit local fs read text or missing facade\" ... ok\n",
            "test \"explicit local fs read text or present facade\" ... ok\n",
            "test \"explicit local fs write text ok facade\" ... ok\n",
            "test \"explicit local fs read i32 result present facade\" ... ok\n",
            "test \"explicit local fs read i32 or zero invalid facade\" ... ok\n",
            "test \"explicit local fs read u32 result present facade\" ... ok\n",
            "test \"explicit local fs read u32 or zero invalid facade\" ... ok\n",
            "test \"explicit local fs read i64 result present facade\" ... ok\n",
            "test \"explicit local fs read i64 or zero missing facade\" ... ok\n",
            "test \"explicit local fs read u64 result present facade\" ... ok\n",
            "test \"explicit local fs read u64 or zero missing facade\" ... ok\n",
            "test \"explicit local fs read f64 result present facade\" ... ok\n",
            "test \"explicit local fs read f64 or zero invalid facade\" ... ok\n",
            "test \"explicit local fs read bool result present facade\" ... ok\n",
            "test \"explicit local fs read bool or false invalid facade\" ... ok\n",
            "test \"explicit local fs typed option facade\" ... ok\n",
            "test \"explicit local fs typed custom fallback facade\" ... ok\n",
            "test \"explicit local fs facade all\" ... ok\n",
            "35 test(s) passed\n",
        ),
        "std layout local fs project test",
    );
}

fn assert_standard_fs_source_facade_alpha(project: &Path) {
    let fs_source = read(&project.join("src/fs.slo"));
    let result_source = read(&project.join("src/result.slo"));
    let string_source = read(&project.join("src/string.slo"));
    let main = read(&project.join("src/main.slo"));

    assert!(
        fs_source.starts_with("(module fs (export "),
        "local fs fixture must stay an explicitly exported local module"
    );
    assert!(
        string_source.starts_with("(module string (export "),
        "local fs string fixture must stay an explicitly exported local module"
    );
    assert!(
        result_source.starts_with("(module result (export "),
        "local fs result fixture must stay an explicitly exported local module"
    );
    assert!(
        main.starts_with("(module main)\n\n(import fs ("),
        "local fs fixture must stay an explicit local import"
    );
    assert!(
        !main.contains("(import std") && !main.contains("(import slovo.std"),
        "standard fs source facade fixture must not use automatic std imports"
    );
    assert!(
        fs_source.contains("(import result (ok_or_none_string ok_or_none_i32 ok_or_none_u32 ok_or_none_i64 ok_or_none_u64 ok_or_none_f64 ok_or_none_bool))")
            && fs_source.contains("(import string (parse_i32_result parse_u32_result parse_i64_result parse_u64_result parse_f64_result parse_bool_result))")
            && fs_source.contains("(std.fs.read_text path)")
            && fs_source.contains("(std.fs.read_text_result path)")
            && fs_source.contains("(std.fs.write_text path text)")
            && fs_source.contains("(std.fs.write_text_result path text)")
            && fs_source.contains("(std.fs.exists path)")
            && fs_source.contains("(std.fs.is_file path)")
            && fs_source.contains("(std.fs.is_dir path)")
            && fs_source.contains("(std.fs.remove_file_result path)")
            && fs_source.contains("(std.fs.create_dir_result path)")
            && fs_source.contains("(std.fs.open_text_read_result path)")
            && fs_source.contains("(std.fs.read_open_text_result handle)")
            && fs_source.contains("(std.fs.close_result handle)")
            && !fs_source.contains("std.string.")
            && !fs_source.contains("(import std.")
            && !main.contains("std."),
        "standard fs source facade fixture must stay local while using promoted fs, result bridge, and parse result calls"
    );
    assert_std_only_contains(
        &fs_source,
        &[
            "std.fs.read_text_result",
            "std.fs.write_text_result",
            "std.fs.read_text",
            "std.fs.write_text",
            "std.fs.exists",
            "std.fs.is_file",
            "std.fs.is_dir",
            "std.fs.remove_file_result",
            "std.fs.create_dir_result",
            "std.fs.open_text_read_result",
            "std.fs.read_open_text_result",
            "std.fs.close_result",
        ],
        "standard fs source facade fixture must use only existing std.fs runtime names directly",
    );
    assert_std_only_contains(
        &string_source,
        &[
            "std.string.len",
            "std.string.concat",
            "std.string.parse_i32_result",
            "std.string.parse_u32_result",
            "std.string.parse_i64_result",
            "std.string.parse_u64_result",
            "std.string.parse_f64_result",
            "std.string.parse_bool_result",
        ],
        "standard fs source local string fixture must use only existing std.string runtime names",
    );
    assert!(
        !main.contains("std.")
            && main.contains("\"glagol-std-layout-local-fs-alpha.txt\"")
            && main.contains("\"std fs source search alpha\"")
            && main.contains("\"glagol-std-layout-local-fs-alpha-missing.txt\"")
            && main.contains("\"std fs source fallback alpha\"")
            && main.contains("\"glagol-std-layout-local-fs-alpha-i32.txt\"")
            && main.contains("\"glagol-std-layout-local-fs-alpha-u32.txt\"")
            && main.contains("\"glagol-std-layout-local-fs-alpha-i64.txt\"")
            && main.contains("\"glagol-std-layout-local-fs-alpha-u64.txt\"")
            && main.contains("\"glagol-std-layout-local-fs-alpha-f64.txt\"")
            && main.contains("\"glagol-std-layout-local-fs-alpha-bool.txt\"")
            && main.contains("\"glagol-std-layout-local-fs-alpha-invalid.txt\"")
            && main.contains("\"glagol-std-layout-local-fs-alpha-dir\"")
            && main.contains("\"glagol-std-layout-local-fs-alpha-dir-helper\"")
            && main.contains("\"glagol-std-layout-local-fs-alpha-remove.txt\""),
        "standard fs source facade main fixture must remain local and deterministic"
    );
    for helper in STANDARD_FS_SOURCE_FACADE_ALPHA {
        assert!(
            fs_source.contains(&format!("(fn {} ", helper)),
            "local fs fixture is missing facade `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "main fixture import/use is missing facade `{}`",
            helper
        );
    }
    for helper in [
        "parse_i32_result",
        "parse_u32_result",
        "parse_i64_result",
        "parse_u64_result",
        "parse_f64_result",
        "parse_bool_result",
    ] {
        assert!(
            string_source.contains(&format!("(fn {} ", helper)),
            "local fs string fixture is missing parse helper `{}`",
            helper
        );
    }
    for helper in [
        "ok_or_none_string",
        "ok_or_none_i32",
        "ok_or_none_u32",
        "ok_or_none_i64",
        "ok_or_none_u64",
        "ok_or_none_f64",
        "ok_or_none_bool",
    ] {
        assert!(
            result_source.contains(&format!("(fn {} ", helper)),
            "local fs result fixture is missing bridge helper `{}`",
            helper
        );
    }
}

fn assert_project_std_layout_local_net_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/net.slo").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert_standard_net_source_facade_alpha(project);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std layout local net project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit local net invalid connect facade\" ... ok\n",
            "test \"explicit local net invalid listen facade\" ... ok\n",
            "test \"explicit local net invalid bound port facade\" ... ok\n",
            "test \"explicit local net invalid accept facade\" ... ok\n",
            "test \"explicit local net invalid read facade\" ... ok\n",
            "test \"explicit local net invalid write facade\" ... ok\n",
            "test \"explicit local net invalid close facade\" ... ok\n",
            "test \"explicit local net helper invalids facade\" ... ok\n",
            "test \"explicit local net facade all\" ... ok\n",
            "9 test(s) passed\n",
        ),
        "std layout local net project test",
    );
}

fn assert_standard_net_source_facade_alpha(project: &Path) {
    let net_source = read(&project.join("src/net.slo"));
    let main = read(&project.join("src/main.slo"));

    assert!(
        net_source.starts_with("(module net (export "),
        "local net fixture must stay an explicitly exported local module"
    );
    assert!(
        main.starts_with("(module main)\n\n(import net ("),
        "local net fixture must stay an explicit local import"
    );
    assert!(
        !main.contains("(import std") && !main.contains("(import slovo.std"),
        "standard net source facade fixture must not use automatic std imports"
    );
    for runtime_name in STANDARD_NET_RUNTIME_NAMES {
        assert!(
            net_source.contains(runtime_name),
            "standard net source facade fixture must wrap `{}`",
            runtime_name
        );
    }
    assert_std_only_contains(
        &net_source,
        STANDARD_NET_RUNTIME_NAMES,
        "standard net source facade fixture must use only existing std.net runtime names directly",
    );
    assert!(
        !main.contains("std.")
            && !net_source.contains("dns")
            && !net_source.contains("tls")
            && !net_source.contains("udp")
            && !net_source.contains("async")
            && !net_source.contains("http")
            && !net_source.contains("timeout")
            && !net_source.contains("non_loopback")
            && !net_source.contains("host_error"),
        "standard net source facade fixture must remain local and must not claim deferred networking policies"
    );
    for helper in STANDARD_NET_SOURCE_FACADE_ALPHA {
        assert!(
            net_source.contains(&format!("(fn {} ", helper)),
            "local net fixture is missing facade `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "main fixture import/use is missing facade `{}`",
            helper
        );
    }
}

fn assert_project_std_layout_local_json_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/json.slo").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert_standard_json_source_facade_alpha(project);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std layout local json project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit local json quote escapes facade\" ... ok\n",
            "test \"explicit local json scalar values facade\" ... ok\n",
            "test \"explicit local json primitive scalar parse success facade\" ... ok\n",
            "test \"explicit local json primitive scalar parse failure facade\" ... ok\n",
            "test \"explicit local json fields facade\" ... ok\n",
            "test \"explicit local json arrays objects facade\" ... ok\n",
            "test \"explicit local json facade all\" ... ok\n",
            "7 test(s) passed\n",
        ),
        "std layout local json project test",
    );
}

fn assert_standard_json_source_facade_alpha(project: &Path) {
    let json_source = read(&project.join("src/json.slo"));
    let main = read(&project.join("src/main.slo"));

    assert!(
        json_source.starts_with("(module json (export "),
        "local json fixture must stay an explicitly exported local module"
    );
    assert!(
        main.starts_with("(module main)\n\n(import json ("),
        "local json fixture must stay an explicit local import"
    );
    assert!(
        !main.contains("(import std") && !main.contains("(import slovo.std"),
        "standard json source facade fixture must not use automatic std imports"
    );
    for runtime_name in STANDARD_JSON_RUNTIME_NAMES {
        assert!(
            json_source.contains(runtime_name),
            "standard json source facade fixture must wrap or compose `{}`",
            runtime_name
        );
    }
    assert_std_only_contains(
        &json_source,
        STANDARD_JSON_RUNTIME_NAMES,
        "standard json source facade fixture must use only approved std runtime names directly",
    );
    assert!(
        !main.contains("std."),
        "standard json source facade fixture main must remain local"
    );
    assert_deferred_json_surface_absent(&json_source, "standard json source facade fixture");
    for helper in STANDARD_JSON_SOURCE_FACADE_ALPHA {
        assert!(
            json_source.contains(&format!("(fn {} ", helper)),
            "local json fixture is missing facade `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "main fixture import/use is missing facade `{}`",
            helper
        );
    }
}

fn assert_project_std_layout_local_io_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/io.slo").is_file());
    assert!(project.join("src/result.slo").is_file());
    assert!(project.join("src/string.slo").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert_standard_io_source_value_helpers_alpha(project);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std layout local io project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit local io i64 zero facade\" ... ok\n",
            "test \"explicit local io u32 zero facade\" ... ok\n",
            "test \"explicit local io u64 zero facade\" ... ok\n",
            "test \"explicit local io f64 zero facade\" ... ok\n",
            "test \"explicit local io value facade\" ... ok\n",
            "test \"explicit local io stdin result facade\" ... ok\n",
            "test \"explicit local io stdin option facade\" ... ok\n",
            "test \"explicit local io stdin text fallback facade\" ... ok\n",
            "test \"explicit local io stdin typed result facade\" ... ok\n",
            "test \"explicit local io stdin typed option facade\" ... ok\n",
            "test \"explicit local io stdin typed fallback facade\" ... ok\n",
            "test \"explicit local io helpers all\" ... ok\n",
            "12 test(s) passed\n",
        ),
        "std layout local io project test",
    );
}

fn assert_standard_io_source_value_helpers_alpha(project: &Path) {
    let io_source = read(&project.join("src/io.slo"));
    let result_source = read(&project.join("src/result.slo"));
    let string_source = read(&project.join("src/string.slo"));
    let main = read(&project.join("src/main.slo"));

    assert!(
        io_source.starts_with("(module io (export "),
        "local io fixture must stay an explicitly exported local module"
    );
    assert!(
        result_source.starts_with("(module result (export "),
        "local io result fixture must stay an explicitly exported local module"
    );
    assert!(
        string_source.starts_with("(module string (export "),
        "local io string fixture must stay an explicitly exported local module"
    );
    assert!(
        main.starts_with("(module main)\n\n(import io ("),
        "local io fixture must stay an explicit local import"
    );
    assert!(
        !main.contains("(import std") && !main.contains("(import slovo.std"),
        "standard io source helper fixture must not use automatic std imports"
    );
    assert_std_only_contains(
        &io_source,
        &[
            "std.io.print_i32",
            "std.io.print_i64",
            "std.io.print_u32",
            "std.io.print_u64",
            "std.io.print_f64",
            "std.io.print_string",
            "std.io.print_bool",
            "std.io.read_stdin_result",
        ],
        "standard io source helper fixture must use only existing std.io print and stdin-result runtime names directly",
    );
    assert!(
        io_source.contains(
            "(import result (ok_or_none_string ok_or_none_i32 ok_or_none_u32 ok_or_none_i64 ok_or_none_u64 ok_or_none_f64 ok_or_none_bool))",
        )
            && io_source.contains(
                "(import string (parse_i32_result parse_u32_result parse_i64_result parse_u64_result parse_f64_result parse_bool_result))",
            )
            && io_source.contains("(std.io.read_stdin_result)")
            && !io_source.contains("eprint")
            && !io_source.contains("read_line")
            && !io_source.contains("stream")
            && !io_source.contains("async")
            && !main.contains("std.")
            && !main.contains("eprint")
            && !main.contains("read_line")
            && !main.contains("stream")
            && !main.contains("async"),
        "standard io source helper fixture must stay local while using only the released stdin-result lane and must not claim deferred io helpers",
    );

    assert_std_only_contains(
        &string_source,
        &[
            "std.string.len",
            "std.string.concat",
            "std.string.parse_i32_result",
            "std.string.parse_u32_result",
            "std.string.parse_i64_result",
            "std.string.parse_u64_result",
            "std.string.parse_f64_result",
            "std.string.parse_bool_result",
        ],
        "local io string fixture must not introduce other compiler-known std names",
    );
    assert_std_only_contains(
        &result_source,
        &[
            "std.result.is_ok",
            "std.result.is_err",
            "std.result.unwrap_ok",
            "std.result.unwrap_err",
        ],
        "local io result fixture must not introduce other compiler-known std names",
    );

    for helper in STANDARD_IO_SOURCE_FACADE_ALPHA {
        assert!(
            io_source.contains(&format!("(fn {} ", helper)),
            "local io fixture is missing facade `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "main fixture import/use is missing facade `{}`",
            helper
        );
    }
}

fn assert_project_std_layout_local_vec_i32_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/option.slo").is_file());
    assert!(project.join("src/vec_i32.slo").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert_standard_vec_i32_source_helpers_alpha(project);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std layout local vec_i32 project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit local vec_i32 empty len facade\" ... ok\n",
            "test \"explicit local vec_i32 direct at facade\" ... ok\n",
            "test \"explicit local vec_i32 builder helpers\" ... ok\n",
            "test \"explicit local vec_i32 constructor helpers\" ... ok\n",
            "test \"explicit local vec_i32 range helper\" ... ok\n",
            "test \"explicit local vec_i32 query helpers\" ... ok\n",
            "test \"explicit local vec_i32 option query helpers\" ... ok\n",
            "test \"explicit local vec_i32 starts_with helper\" ... ok\n",
            "test \"explicit local vec_i32 ends_with helper\" ... ok\n",
            "test \"explicit local vec_i32 without_suffix helper\" ... ok\n",
            "test \"explicit local vec_i32 without_prefix helper\" ... ok\n",
            "test \"explicit local vec_i32 transform helpers\" ... ok\n",
            "test \"explicit local vec_i32 subvec helper\" ... ok\n",
            "test \"explicit local vec_i32 insert helper\" ... ok\n",
            "test \"explicit local vec_i32 insert range helper\" ... ok\n",
            "test \"explicit local vec_i32 replace helper\" ... ok\n",
            "test \"explicit local vec_i32 replace range helper\" ... ok\n",
            "test \"explicit local vec_i32 remove helper\" ... ok\n",
            "test \"explicit local vec_i32 remove range helper\" ... ok\n",
            "test \"explicit local vec_i32 count_of helper\" ... ok\n",
            "test \"explicit local vec_i32 real program helpers\" ... ok\n",
            "test \"explicit local vec_i32 helpers all\" ... ok\n",
            "22 test(s) passed\n",
        ),
        "std layout local vec_i32 project test",
    );
}

fn assert_standard_vec_i32_source_helpers_alpha(project: &Path) {
    let option_source = read(&project.join("src/option.slo"));
    let vec_i32_source = read(&project.join("src/vec_i32.slo"));
    let main = read(&project.join("src/main.slo"));

    assert!(
        option_source.starts_with("(module option (export "),
        "local option helper fixture must stay an explicitly exported local module"
    );
    assert!(
        vec_i32_source.starts_with("(module vec_i32 (export "),
        "local vec_i32 fixture must stay an explicitly exported local module"
    );
    assert!(
        main.starts_with("(module main)\n\n(import vec_i32 ("),
        "local vec_i32 fixture must stay an explicit local import"
    );
    assert!(
        !option_source.contains("(import std")
            && !vec_i32_source.contains("(import std")
            && !main.contains("(import std")
            && !option_source.contains("(import slovo.std")
            && !vec_i32_source.contains("(import slovo.std")
            && !main.contains("(import slovo.std"),
        "standard vec_i32 source helper fixture must not use automatic std imports"
    );
    assert_std_only_contains(
        &vec_i32_source,
        &[
            "std.vec.i32.empty",
            "std.vec.i32.append",
            "std.vec.i32.len",
            "std.vec.i32.index",
        ],
        "standard vec_i32 source helper fixture must use only existing std.vec.i32 runtime names",
    );
    assert!(
        !option_source.contains("std.") && !main.contains("std."),
        "standard vec_i32 source helper main fixture must remain local and explicit"
    );
    assert!(
        !option_source.contains("(result ")
            && !option_source.contains("(option i64)")
            && !option_source.contains("(option f64)")
            && !option_source.contains("(option string)")
            && !option_source.contains("(option bool)")
            && !vec_i32_source.contains("capacity")
            && !vec_i32_source.contains("reserve")
            && !vec_i32_source.contains("shrink")
            && !vec_i32_source.contains("sort")
            && !vec_i32_source.contains("map")
            && !vec_i32_source.contains("filter")
            && !main.contains("capacity")
            && !main.contains("reserve")
            && !main.contains("shrink")
            && !main.contains("sort")
            && !main.contains("map")
            && !main.contains("filter")
            && !vec_i32_source.contains("(vec i64)")
            && !main.contains("(vec i64)")
            && !vec_i32_source.contains("(vec f64)")
            && !main.contains("(vec f64)")
            && !vec_i32_source.contains("(vec string)")
            && !main.contains("(vec string)")
            && !vec_i32_source.contains("(vec bool)")
            && !main.contains("(vec bool)")
            && !vec_i32_source.contains("(option i64)")
            && !main.contains("(option i64)")
            && !vec_i32_source.contains("(option f64)")
            && !main.contains("(option f64)")
            && !vec_i32_source.contains("(option string)")
            && !main.contains("(option string)")
            && !vec_i32_source.contains("(option bool)")
            && !main.contains("(option bool)"),
        "standard vec_i32 source helper fixture must stay concrete to i32 vec and option helpers and must not claim deferred collection APIs"
    );

    for helper in STANDARD_VEC_I32_SOURCE_FACADE_ALPHA {
        assert!(
            vec_i32_source.contains(&format!("(fn {} ", helper)),
            "local vec_i32 fixture is missing facade `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "main fixture import/use is missing facade `{}`",
            helper
        );
    }
    for helper in [
        "repeat_loop",
        "range_from_zero_loop",
        "range_loop",
        "concat_loop",
        "take_loop",
        "drop_loop",
        "reverse_loop",
    ] {
        assert!(
            vec_i32_source.contains(&format!("(fn {} ", helper)),
            "local vec_i32 fixture is missing private recursive helper `{}`",
            helper
        );
    }
}

fn assert_project_std_layout_local_vec_i64_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/vec_i64.slo").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert_standard_vec_i64_source_helpers_alpha(project);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std layout local vec_i64 project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit local vec_i64 empty len facade\" ... ok\n",
            "test \"explicit local vec_i64 direct at facade\" ... ok\n",
            "test \"explicit local vec_i64 builder helpers\" ... ok\n",
            "test \"explicit local vec_i64 query helpers\" ... ok\n",
            "test \"explicit local vec_i64 option query helpers\" ... ok\n",
            "test \"explicit local vec_i64 count_of helper\" ... ok\n",
            "test \"explicit local vec_i64 starts_with helper\" ... ok\n",
            "test \"explicit local vec_i64 ends_with helper\" ... ok\n",
            "test \"explicit local vec_i64 without_suffix helper\" ... ok\n",
            "test \"explicit local vec_i64 without_prefix helper\" ... ok\n",
            "test \"explicit local vec_i64 transform helpers\" ... ok\n",
            "test \"explicit local vec_i64 subvec helper\" ... ok\n",
            "test \"explicit local vec_i64 insert helper\" ... ok\n",
            "test \"explicit local vec_i64 insert range helper\" ... ok\n",
            "test \"explicit local vec_i64 replace helper\" ... ok\n",
            "test \"explicit local vec_i64 replace range helper\" ... ok\n",
            "test \"explicit local vec_i64 remove helper\" ... ok\n",
            "test \"explicit local vec_i64 remove range helper\" ... ok\n",
            "test \"explicit local vec_i64 real program helpers\" ... ok\n",
            "test \"explicit local vec_i64 helpers all\" ... ok\n",
            "20 test(s) passed\n",
        ),
        "std layout local vec_i64 project test",
    );
}

fn assert_project_std_layout_local_vec_f64_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/vec_f64.slo").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert_standard_vec_f64_source_helpers_alpha(project);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std layout local vec_f64 project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit local vec_f64 empty len facade\" ... ok\n",
            "test \"explicit local vec_f64 direct at facade\" ... ok\n",
            "test \"explicit local vec_f64 builder helpers\" ... ok\n",
            "test \"explicit local vec_f64 query helpers\" ... ok\n",
            "test \"explicit local vec_f64 option query helpers\" ... ok\n",
            "test \"explicit local vec_f64 count_of helper\" ... ok\n",
            "test \"explicit local vec_f64 starts_with helper\" ... ok\n",
            "test \"explicit local vec_f64 ends_with helper\" ... ok\n",
            "test \"explicit local vec_f64 without_suffix helper\" ... ok\n",
            "test \"explicit local vec_f64 without_prefix helper\" ... ok\n",
            "test \"explicit local vec_f64 transform helpers\" ... ok\n",
            "test \"explicit local vec_f64 subvec helper\" ... ok\n",
            "test \"explicit local vec_f64 insert helper\" ... ok\n",
            "test \"explicit local vec_f64 insert range helper\" ... ok\n",
            "test \"explicit local vec_f64 replace helper\" ... ok\n",
            "test \"explicit local vec_f64 replace range helper\" ... ok\n",
            "test \"explicit local vec_f64 remove helper\" ... ok\n",
            "test \"explicit local vec_f64 remove range helper\" ... ok\n",
            "test \"explicit local vec_f64 real program helpers\" ... ok\n",
            "test \"explicit local vec_f64 helpers all\" ... ok\n",
            "20 test(s) passed\n",
        ),
        "std layout local vec_f64 project test",
    );
}

fn assert_project_std_layout_local_vec_bool_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/vec_bool.slo").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert_standard_vec_bool_source_helpers_alpha(project);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std layout local vec_bool project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit local vec_bool empty len facade\" ... ok\n",
            "test \"explicit local vec_bool direct at facade\" ... ok\n",
            "test \"explicit local vec_bool builder helpers\" ... ok\n",
            "test \"explicit local vec_bool query helpers\" ... ok\n",
            "test \"explicit local vec_bool option query helpers\" ... ok\n",
            "test \"explicit local vec_bool starts_with helper\" ... ok\n",
            "test \"explicit local vec_bool ends_with helper\" ... ok\n",
            "test \"explicit local vec_bool without_suffix helper\" ... ok\n",
            "test \"explicit local vec_bool without_prefix helper\" ... ok\n",
            "test \"explicit local vec_bool transform helpers\" ... ok\n",
            "test \"explicit local vec_bool subvec helper\" ... ok\n",
            "test \"explicit local vec_bool insert helper\" ... ok\n",
            "test \"explicit local vec_bool insert range helper\" ... ok\n",
            "test \"explicit local vec_bool replace helper\" ... ok\n",
            "test \"explicit local vec_bool replace range helper\" ... ok\n",
            "test \"explicit local vec_bool remove helper\" ... ok\n",
            "test \"explicit local vec_bool remove range helper\" ... ok\n",
            "test \"explicit local vec_bool real program helpers\" ... ok\n",
            "test \"explicit local vec_bool helpers all\" ... ok\n",
            "19 test(s) passed\n",
        ),
        "std layout local vec_bool project test",
    );
}

fn assert_standard_vec_i64_source_helpers_alpha(project: &Path) {
    let vec_i64_source = read(&project.join("src/vec_i64.slo"));
    let main = read(&project.join("src/main.slo"));

    assert!(
        vec_i64_source.starts_with("(module vec_i64 (export "),
        "local vec_i64 fixture must stay an explicitly exported local module"
    );
    assert!(
        main.starts_with("(module main)\n\n(import vec_i64 ("),
        "local vec_i64 fixture must stay an explicit local import"
    );
    assert!(
        !vec_i64_source.contains("(import std")
            && !main.contains("(import std.")
            && !vec_i64_source.contains("(import slovo.std")
            && !main.contains("(import slovo.std"),
        "standard vec_i64 source helper fixture must not use automatic std imports"
    );
    assert_std_only_contains(
        &vec_i64_source,
        &[
            "std.vec.i64.empty",
            "std.vec.i64.append",
            "std.vec.i64.len",
            "std.vec.i64.index",
        ],
        "standard vec_i64 source helper fixture must use only existing std.vec.i64 runtime names",
    );
    assert!(
        !main.contains("std."),
        "standard vec_i64 source helper main fixture must remain local and explicit"
    );
    assert!(
        !vec_i64_source.contains("(var ")
            && !main.contains("(var ")
            && !vec_i64_source.contains("(set ")
            && !main.contains("(set ")
            && !vec_i64_source.contains("capacity")
            && !vec_i64_source.contains("reserve")
            && !vec_i64_source.contains("shrink")
            && !vec_i64_source.contains("sort")
            && !vec_i64_source.contains("map")
            && !vec_i64_source.contains("filter")
            && !vec_i64_source.contains("(vec i32)")
            && !main.contains("(vec i32)")
            && !vec_i64_source.contains("(vec f64)")
            && !main.contains("(vec f64)")
            && !vec_i64_source.contains("(vec string)")
            && !main.contains("(vec string)")
            && !vec_i64_source.contains("(vec bool)")
            && !main.contains("(vec bool)")
            && !vec_i64_source.contains("(option f64)")
            && !main.contains("(option f64)")
            && !vec_i64_source.contains("(option string)")
            && !main.contains("(option string)")
            && !vec_i64_source.contains("(option bool)")
            && !main.contains("(option bool)")
            && !vec_i64_source.contains("(result i32")
            && !main.contains("(result i32")
            && !vec_i64_source.contains("(result i64")
            && !main.contains("(result i64")
            && !vec_i64_source.contains("(result f64")
            && !main.contains("(result f64")
            && !vec_i64_source.contains("(result string")
            && !main.contains("(result string")
            && !vec_i64_source.contains("(result bool")
            && !main.contains("(result bool"),
        "standard vec_i64 source helper fixture must stay concrete to vec i64 plus option i32/i64 helpers and must not claim deferred collection APIs"
    );

    for helper in STANDARD_VEC_I64_SOURCE_FACADE_ALPHA {
        assert!(
            vec_i64_source.contains(&format!("(fn {} ", helper)),
            "local vec_i64 fixture is missing facade `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "main fixture import/use is missing facade `{}`",
            helper
        );
    }
    for helper in [
        "index_of_option_loop",
        "last_index_of_option_loop",
        "contains_loop",
        "sum_loop",
        "concat_loop",
        "take_loop",
        "drop_loop",
        "reverse_loop",
    ] {
        assert!(
            vec_i64_source.contains(&format!("(fn {} ", helper)),
            "local vec_i64 fixture is missing private recursive helper `{}`",
            helper
        );
    }
}

fn assert_standard_vec_f64_source_helpers_alpha(project: &Path) {
    let vec_f64_source = read(&project.join("src/vec_f64.slo"));
    let main = read(&project.join("src/main.slo"));

    assert!(
        vec_f64_source.starts_with("(module vec_f64 (export "),
        "local vec_f64 fixture must stay an explicitly exported local module"
    );
    assert!(
        main.starts_with("(module main)\n\n(import vec_f64 ("),
        "local vec_f64 fixture must stay an explicit local import"
    );
    assert!(
        !vec_f64_source.contains("(import std")
            && !main.contains("(import std.")
            && !vec_f64_source.contains("(import slovo.std")
            && !main.contains("(import slovo.std"),
        "standard vec_f64 source helper fixture must not use automatic std imports"
    );
    assert_std_only_contains(
        &vec_f64_source,
        &[
            "std.vec.f64.empty",
            "std.vec.f64.append",
            "std.vec.f64.len",
            "std.vec.f64.index",
        ],
        "standard vec_f64 source helper fixture must use only existing std.vec.f64 runtime names",
    );
    assert!(
        !main.contains("std."),
        "standard vec_f64 source helper main fixture must remain local and explicit"
    );
    assert!(
        !vec_f64_source.contains("(var ")
            && !main.contains("(var ")
            && !vec_f64_source.contains("(set ")
            && !main.contains("(set ")
            && !vec_f64_source.contains("capacity")
            && !vec_f64_source.contains("reserve")
            && !vec_f64_source.contains("shrink")
            && !vec_f64_source.contains("sort")
            && !vec_f64_source.contains("map")
            && !vec_f64_source.contains("filter")
            && !vec_f64_source.contains("(vec i32)")
            && !main.contains("(vec i32)")
            && !vec_f64_source.contains("(vec i64)")
            && !main.contains("(vec i64)")
            && !vec_f64_source.contains("(vec string)")
            && !main.contains("(vec string)")
            && !vec_f64_source.contains("(vec bool)")
            && !main.contains("(vec bool)")
            && !vec_f64_source.contains("(option i64)")
            && !main.contains("(option i64)")
            && !vec_f64_source.contains("(option string)")
            && !main.contains("(option string)")
            && !vec_f64_source.contains("(option bool)")
            && !main.contains("(option bool)")
            && !vec_f64_source.contains("(result i32")
            && !main.contains("(result i32")
            && !vec_f64_source.contains("(result i64")
            && !main.contains("(result i64")
            && !vec_f64_source.contains("(result f64")
            && !main.contains("(result f64")
            && !vec_f64_source.contains("(result string")
            && !main.contains("(result string")
            && !vec_f64_source.contains("(result bool")
            && !main.contains("(result bool"),
        "standard vec_f64 source helper fixture must stay concrete to vec f64 plus option i32/f64 helpers and must not claim deferred generic or mutation-heavy collection APIs"
    );

    for helper in STANDARD_VEC_F64_SOURCE_FACADE_ALPHA {
        assert!(
            vec_f64_source.contains(&format!("(fn {} ", helper)),
            "local vec_f64 fixture is missing facade `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "main fixture import/use is missing facade `{}`",
            helper
        );
    }
    for helper in [
        "index_of_option_loop",
        "last_index_of_option_loop",
        "contains_loop",
        "sum_loop",
        "concat_loop",
        "take_loop",
        "drop_loop",
        "reverse_loop",
    ] {
        assert!(
            vec_f64_source.contains(&format!("(fn {} ", helper)),
            "local vec_f64 fixture is missing private recursive helper `{}`",
            helper
        );
    }
}

fn assert_standard_vec_bool_source_helpers_alpha(project: &Path) {
    let vec_bool_source = read(&project.join("src/vec_bool.slo"));
    let main = read(&project.join("src/main.slo"));

    assert!(
        vec_bool_source.starts_with("(module vec_bool (export "),
        "local vec_bool fixture must stay an explicitly exported local module"
    );
    assert!(
        main.starts_with("(module main)\n\n(import vec_bool ("),
        "local vec_bool fixture must stay an explicit local import"
    );
    assert!(
        !vec_bool_source.contains("(import std")
            && !main.contains("(import std.")
            && !vec_bool_source.contains("(import slovo.std")
            && !main.contains("(import slovo.std"),
        "standard vec_bool source helper fixture must not use automatic std imports"
    );
    assert_std_only_contains(
        &vec_bool_source,
        &[
            "std.vec.bool.empty",
            "std.vec.bool.append",
            "std.vec.bool.len",
            "std.vec.bool.index",
        ],
        "standard vec_bool source helper fixture must use only existing std.vec.bool runtime names",
    );
    assert!(
        !main.contains("std."),
        "standard vec_bool source helper main fixture must remain local and explicit"
    );
    assert!(
        !vec_bool_source.contains("(var ")
            && !main.contains("(var ")
            && !vec_bool_source.contains("(set ")
            && !main.contains("(set ")
            && !vec_bool_source.contains("capacity")
            && !vec_bool_source.contains("reserve")
            && !vec_bool_source.contains("shrink")
            && !vec_bool_source.contains("sort")
            && !vec_bool_source.contains("map")
            && !vec_bool_source.contains("filter")
            && !vec_bool_source.contains("(vec i32)")
            && !main.contains("(vec i32)")
            && !vec_bool_source.contains("(vec i64)")
            && !main.contains("(vec i64)")
            && !vec_bool_source.contains("(vec f64)")
            && !main.contains("(vec f64)")
            && !vec_bool_source.contains("(vec string)")
            && !main.contains("(vec string)")
            && !vec_bool_source.contains("(option i64)")
            && !main.contains("(option i64)")
            && !vec_bool_source.contains("(option f64)")
            && !main.contains("(option f64)")
            && !vec_bool_source.contains("(option string)")
            && !main.contains("(option string)")
            && !vec_bool_source.contains("(result i32")
            && !main.contains("(result i32")
            && !vec_bool_source.contains("(result i64")
            && !main.contains("(result i64")
            && !vec_bool_source.contains("(result f64")
            && !main.contains("(result f64")
            && !vec_bool_source.contains("(result string")
            && !main.contains("(result string")
            && !vec_bool_source.contains("(result bool")
            && !main.contains("(result bool"),
        "standard vec_bool source helper fixture must stay concrete to vec bool plus option i32/bool helpers and must not claim deferred generic or mutation-heavy collection APIs"
    );

    for helper in STANDARD_VEC_BOOL_SOURCE_FACADE_ALPHA {
        assert!(
            vec_bool_source.contains(&format!("(fn {} ", helper)),
            "local vec_bool fixture is missing facade `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "main fixture import/use is missing facade `{}`",
            helper
        );
    }
    for helper in [
        "index_of_option_loop",
        "last_index_of_option_loop",
        "contains_loop",
        "count_of_loop",
        "concat_loop",
        "take_loop",
        "drop_loop",
        "reverse_loop",
    ] {
        assert!(
            vec_bool_source.contains(&format!("(fn {} ", helper)),
            "local vec_bool fixture is missing private recursive helper `{}`",
            helper
        );
    }
}

fn assert_project_std_layout_local_vec_string_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/vec_string.slo").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert_standard_vec_string_source_helpers_alpha(project);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std layout local vec_string project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit local vec_string empty len facade\" ... ok\n",
            "test \"explicit local vec_string direct at facade\" ... ok\n",
            "test \"explicit local vec_string builder helpers\" ... ok\n",
            "test \"explicit local vec_string query helpers\" ... ok\n",
            "test \"explicit local vec_string option query helpers\" ... ok\n",
            "test \"explicit local vec_string starts_with helper\" ... ok\n",
            "test \"explicit local vec_string ends_with helper\" ... ok\n",
            "test \"explicit local vec_string without_suffix helper\" ... ok\n",
            "test \"explicit local vec_string without_prefix helper\" ... ok\n",
            "test \"explicit local vec_string transform helpers\" ... ok\n",
            "test \"explicit local vec_string subvec helper\" ... ok\n",
            "test \"explicit local vec_string insert helper\" ... ok\n",
            "test \"explicit local vec_string insert range helper\" ... ok\n",
            "test \"explicit local vec_string replace helper\" ... ok\n",
            "test \"explicit local vec_string replace range helper\" ... ok\n",
            "test \"explicit local vec_string remove helper\" ... ok\n",
            "test \"explicit local vec_string remove range helper\" ... ok\n",
            "test \"explicit local vec_string real-program helpers\" ... ok\n",
            "test \"explicit local vec_string helpers all\" ... ok\n",
            "19 test(s) passed\n",
        ),
        "std layout local vec_string project test",
    );
}

fn assert_standard_vec_string_source_helpers_alpha(project: &Path) {
    let vec_string_source = read(&project.join("src/vec_string.slo"));
    let main = read(&project.join("src/main.slo"));

    assert!(
        vec_string_source.starts_with("(module vec_string (export "),
        "local vec_string fixture must stay an explicitly exported local module"
    );
    assert!(
        main.starts_with("(module main)\n\n(import vec_string ("),
        "local vec_string fixture must stay an explicit local import"
    );
    assert!(
        !vec_string_source.contains("(import std")
            && !main.contains("(import std.")
            && !vec_string_source.contains("(import slovo.std")
            && !main.contains("(import slovo.std"),
        "standard vec_string source helper fixture must not use automatic std imports"
    );
    assert_std_only_contains(
        &vec_string_source,
        &[
            "std.vec.string.empty",
            "std.vec.string.append",
            "std.vec.string.len",
            "std.vec.string.index",
        ],
        "standard vec_string source helper fixture must use only existing std.vec.string runtime names",
    );
    assert!(
        !main.contains("std."),
        "standard vec_string source helper main fixture must remain local and explicit"
    );
    assert!(
        !vec_string_source.contains("(var ")
            && !main.contains("(var ")
            && !vec_string_source.contains("(set ")
            && !main.contains("(set ")
            && !vec_string_source.contains("capacity")
            && !vec_string_source.contains("reserve")
            && !vec_string_source.contains("shrink")
            && !vec_string_source.contains("sort")
            && !vec_string_source.contains("map")
            && !vec_string_source.contains("filter")
            && !vec_string_source.contains("concat_all")
            && !vec_string_source.contains("(vec i32)")
            && !main.contains("(vec i32)")
            && !vec_string_source.contains("(vec i64)")
            && !main.contains("(vec i64)")
            && !vec_string_source.contains("(vec f64)")
            && !main.contains("(vec f64)")
            && !vec_string_source.contains("(vec bool)")
            && !main.contains("(vec bool)")
            && !vec_string_source.contains("(option i64)")
            && !main.contains("(option i64)")
            && !vec_string_source.contains("(option f64)")
            && !main.contains("(option f64)")
            && !vec_string_source.contains("(option bool)")
            && !main.contains("(option bool)")
            && !vec_string_source.contains("(result i32")
            && !main.contains("(result i32")
            && !vec_string_source.contains("(result i64")
            && !main.contains("(result i64")
            && !vec_string_source.contains("(result f64")
            && !main.contains("(result f64")
            && !vec_string_source.contains("(result string")
            && !main.contains("(result string")
            && !vec_string_source.contains("(result bool")
            && !main.contains("(result bool"),
        "standard vec_string source helper fixture must stay concrete to vec string plus option i32/string helpers and must not claim deferred collection APIs"
    );

    for helper in STANDARD_VEC_STRING_SOURCE_FACADE_ALPHA {
        assert!(
            vec_string_source.contains(&format!("(fn {} ", helper)),
            "local vec_string fixture is missing facade `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "main fixture import/use is missing facade `{}`",
            helper
        );
    }
    for helper in [
        "index_of_option_loop",
        "last_index_of_option_loop",
        "contains_loop",
        "count_of_loop",
        "concat_loop",
        "take_loop",
        "drop_loop",
        "reverse_loop",
    ] {
        assert!(
            vec_string_source.contains(&format!("(fn {} ", helper)),
            "local vec_string fixture is missing private recursive helper `{}`",
            helper
        );
    }
}

fn assert_project_std_layout_local_result_tooling_matches_fixture(project: &Path) {
    assert!(project.join("slovo.toml").is_file());
    assert!(project.join("src/result.slo").is_file());
    assert!(project.join("src/main.slo").is_file());
    assert_standard_result_source_helpers_alpha(project);

    let check = run_glagol([OsStr::new("check"), project.as_os_str()]);
    assert_success_stdout(check, "", "std layout local result project check");

    let test = run_glagol([OsStr::new("test"), project.as_os_str()]);
    assert_success_stdout(
        test,
        concat!(
            "test \"explicit local result i32 wrappers\" ... ok\n",
            "test \"explicit local result err wrappers\" ... ok\n",
            "test \"explicit local result unwrap_or i32\" ... ok\n",
            "test \"explicit local result ok_or_none i32 ok\" ... ok\n",
            "test \"explicit local result ok_or_none i32 none\" ... ok\n",
            "test \"explicit local result u32 wrappers\" ... ok\n",
            "test \"explicit local result unwrap_or u32\" ... ok\n",
            "test \"explicit local result ok_or_none u32 ok\" ... ok\n",
            "test \"explicit local result ok_or_none u32 none\" ... ok\n",
            "test \"explicit local result unwrap_or i64\" ... ok\n",
            "test \"explicit local result ok_or_none i64 ok\" ... ok\n",
            "test \"explicit local result ok_or_none i64 none\" ... ok\n",
            "test \"explicit local result u64 wrappers\" ... ok\n",
            "test \"explicit local result unwrap_or u64\" ... ok\n",
            "test \"explicit local result ok_or_none u64 ok\" ... ok\n",
            "test \"explicit local result ok_or_none u64 none\" ... ok\n",
            "test \"explicit local result unwrap_or string\" ... ok\n",
            "test \"explicit local result ok_or_none string ok\" ... ok\n",
            "test \"explicit local result ok_or_none string none\" ... ok\n",
            "test \"explicit local result unwrap_or f64\" ... ok\n",
            "test \"explicit local result ok_or_none f64 ok\" ... ok\n",
            "test \"explicit local result ok_or_none f64 none\" ... ok\n",
            "test \"explicit local result bool helpers\" ... ok\n",
            "test \"explicit local result ok_or_none bool ok\" ... ok\n",
            "test \"explicit local result ok_or_none bool none\" ... ok\n",
            "test \"explicit local result helpers all\" ... ok\n",
            "26 test(s) passed\n",
        ),
        "std layout local result project test",
    );
}

fn assert_standard_result_source_helpers_alpha(project: &Path) {
    let result = read(&project.join("src/result.slo"));
    let main = read(&project.join("src/main.slo"));

    assert!(
        result.starts_with("(module result (export "),
        "local result fixture must stay an explicitly exported local module"
    );
    assert!(
        main.starts_with("(module main)\n\n(import result ("),
        "local result fixture must stay an explicit local import"
    );
    assert!(
        !main.contains("(import std") && !main.contains("(import slovo.std"),
        "standard result source helper fixture must not use automatic std imports"
    );
    assert!(
        !result.contains("std.result.unwrap_or")
            && !result.contains("std.result.map")
            && !result.contains("std.result.and_then")
            && !main.contains("std.result.unwrap_or")
            && !main.contains("std.result.map")
            && !main.contains("std.result.and_then"),
        "standard result source helper fixture must keep deferred result helpers out"
    );

    let mut non_result_std = result.clone();
    for allowed in [
        "std.result.is_ok",
        "std.result.is_err",
        "std.result.unwrap_ok",
        "std.result.unwrap_err",
    ] {
        non_result_std = non_result_std.replace(allowed, "");
    }
    assert!(
        !non_result_std.contains("std."),
        "standard result source helper definitions must use only existing std.result names"
    );
    assert!(
        !result.contains("std.option.")
            && !main.contains("std.option.")
            && !main.contains("(import option"),
        "standard result source helper fixture must bridge through raw concrete option forms, not compiler-known std.option names or a separate local option module"
    );

    for helper in STANDARD_RESULT_SOURCE_HELPERS_ALPHA {
        assert!(
            result.contains(&format!("(fn {} ", helper)),
            "local result fixture is missing helper `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "main fixture import/use is missing helper `{}`",
            helper
        );
    }
    for helper in STANDARD_RESULT_OPTION_BRIDGE_HELPERS_ALPHA {
        assert!(
            result.contains(&format!("(fn {} ", helper)),
            "local result fixture is missing bridge helper `{}`",
            helper
        );
        assert!(
            main.contains(helper),
            "main fixture import/use is missing bridge helper `{}`",
            helper
        );
    }
}

fn assert_success_stdout(output: Output, expected: &str, context: &str) {
    let stdout = String::from_utf8_lossy(&output.stdout);
    let stderr = String::from_utf8_lossy(&output.stderr);

    assert!(
        output.status.success(),
        "{} failed\nstdout:\n{}\nstderr:\n{}",
        context,
        stdout,
        stderr
    );
    assert_eq!(stdout, expected, "{} stdout drifted", context);
    assert!(stderr.is_empty(), "{} wrote stderr:\n{}", context, stderr);
}

fn assert_diagnostic_snapshots_are_promotable(repo: &Path) {
    assert_file_name_inventory(
        &repo.join("tests"),
        &["diag"],
        DIAGNOSTIC_SNAPSHOTS,
        "promotion gate expects every diagnostic snapshot to be explicitly inventoried",
    );

    for snapshot in DIAGNOSTIC_SNAPSHOTS {
        let path = repo.join("tests").join(snapshot);
        let content = read(&path);

        assert!(
            content.starts_with("(diagnostic\n"),
            "`{}` must use the Slovo v1 diagnostic root",
            path.display()
        );
        assert!(
            content.contains("  (schema slovo.diagnostic)\n"),
            "`{}` is missing Slovo diagnostic schema marker",
            path.display()
        );
        assert!(
            content.contains("  (version 1)\n"),
            "`{}` is missing Slovo diagnostic schema version",
            path.display()
        );
        assert!(
            content.contains("(severity error)"),
            "`{}` is missing machine severity",
            path.display()
        );
        assert!(
            content.contains("  (code "),
            "`{}` is missing a machine diagnostic code",
            path.display()
        );
        assert!(
            content.contains("  (file \"<fixture>\")"),
            "`{}` must normalize fixture paths",
            path.display()
        );
        assert!(
            content.contains("  (span\n") && content.contains("    (bytes "),
            "`{}` is missing byte span",
            path.display()
        );
        assert!(
            content.contains("    (range "),
            "`{}` is missing line/column range",
            path.display()
        );

        if *snapshot == "test-duplicate-name.diag" {
            assert!(
                content.contains("  (related\n")
                    && content.contains("      (message \"original test name\")")
                    && content.contains("      (bytes "),
                "`{}` is missing duplicate-name related span",
                path.display()
            );
        }
    }
}

fn assert_file_name_inventory(dir: &Path, extensions: &[&str], expected: &[&str], context: &str) {
    let mut actual = read_dir_file_names_with_extensions(dir, extensions);
    actual.sort();

    let mut expected = expected
        .iter()
        .map(|name| (*name).to_string())
        .collect::<Vec<_>>();
    expected.sort();

    assert_eq!(actual, expected, "{}", context);
}

fn required_llvm_shapes(expected: &str) -> Vec<&str> {
    expected
        .lines()
        .map(str::trim)
        .filter(|line| !line.is_empty())
        .filter(|line| !line.starts_with(';'))
        .collect()
}

fn strip_leading_comments_and_blank_lines(source: &str) -> String {
    source
        .lines()
        .skip_while(|line| line.trim().is_empty() || line.trim_start().starts_with(';'))
        .collect::<Vec<_>>()
        .join("\n")
        + "\n"
}

fn strip_comments(source: &str) -> String {
    source
        .lines()
        .map(|line| line.split_once(';').map_or(line, |(code, _)| code))
        .collect::<Vec<_>>()
        .join("\n")
}

fn contains_word(source: &str, word: &str) -> bool {
    source
        .split(|ch: char| !ch.is_ascii_alphanumeric() && ch != '_')
        .any(|token| token == word)
}

fn read(path: &Path) -> String {
    fs::read_to_string(path).unwrap_or_else(|err| panic!("read `{}`: {}", path.display(), err))
}

fn read_dir_files(path: &Path) -> Vec<PathBuf> {
    fs::read_dir(path)
        .unwrap_or_else(|err| panic!("read dir `{}`: {}", path.display(), err))
        .filter_map(|entry| {
            let entry = entry.unwrap_or_else(|err| panic!("read dir entry: {}", err));
            let path = entry.path();
            path.is_file().then_some(path)
        })
        .collect()
}

fn read_dir_file_names_with_extensions(path: &Path, extensions: &[&str]) -> Vec<String> {
    fs::read_dir(path)
        .unwrap_or_else(|err| panic!("read dir `{}`: {}", path.display(), err))
        .filter_map(|entry| {
            let entry = entry.unwrap_or_else(|err| panic!("read dir entry: {}", err));
            let path = entry.path();
            let extension = path.extension().and_then(OsStr::to_str)?;
            if path.is_file() && extensions.contains(&extension) {
                path.file_name().and_then(OsStr::to_str).map(str::to_string)
            } else {
                None
            }
        })
        .collect()
}

fn assert_std_only_contains(source: &str, allowed: &[&str], context: &str) {
    let mut remaining = source.to_string();
    for name in allowed {
        remaining = remaining.replace(name, "");
    }
    assert!(!remaining.contains("std."), "{}", context);
}

fn assert_deferred_json_surface_absent(source: &str, context: &str) {
    for deferred in [
        "parse_string",
        "parse_object",
        "parse_array",
        "parse_value",
        "tokenize",
        "tokenizer",
        "schema",
        "stream",
        "unicode",
        "map",
    ] {
        assert!(
            !source.contains(deferred),
            "{} must not claim deferred JSON `{}` policies",
            context,
            deferred
        );
    }
}

fn repo_root() -> PathBuf {
    Path::new(env!("CARGO_MANIFEST_DIR"))
        .parent()
        .expect("compiler crate has repo parent")
        .to_path_buf()
}

fn run_glagol<I, S>(args: I) -> Output
where
    I: IntoIterator<Item = S>,
    S: AsRef<std::ffi::OsStr>,
{
    Command::new(env!("CARGO_BIN_EXE_glagol"))
        .args(args)
        .output()
        .expect("run glagol")
}

fn run_glagol_in<I, S>(args: I, cwd: &Path) -> Output
where
    I: IntoIterator<Item = S>,
    S: AsRef<std::ffi::OsStr>,
{
    Command::new(env!("CARGO_BIN_EXE_glagol"))
        .args(args)
        .current_dir(cwd)
        .output()
        .expect("run glagol")
}

fn run_glagol_configured<I, S, F>(args: I, configure: F) -> Output
where
    I: IntoIterator<Item = S>,
    S: AsRef<std::ffi::OsStr>,
    F: FnOnce(&mut Command),
{
    let mut command = Command::new(env!("CARGO_BIN_EXE_glagol"));
    command.args(args);
    configure(&mut command);
    command.output().expect("run glagol")
}

fn configure_standard_local_env(command: &mut Command) {
    command
        .env_remove(STANDARD_ENV_MISSING_NAME)
        .env(STANDARD_ENV_PRESENT_NAME, STANDARD_ENV_PRESENT_VALUE)
        .env(
            STANDARD_ENV_PRESENT_I32_NAME,
            STANDARD_ENV_PRESENT_I32_VALUE,
        )
        .env(
            STANDARD_ENV_PRESENT_U32_NAME,
            STANDARD_ENV_PRESENT_U32_VALUE,
        )
        .env(
            STANDARD_ENV_PRESENT_I64_NAME,
            STANDARD_ENV_PRESENT_I64_VALUE,
        )
        .env(
            STANDARD_ENV_PRESENT_U64_NAME,
            STANDARD_ENV_PRESENT_U64_VALUE,
        )
        .env(
            STANDARD_ENV_PRESENT_F64_NAME,
            STANDARD_ENV_PRESENT_F64_VALUE,
        )
        .env(
            STANDARD_ENV_PRESENT_BOOL_NAME,
            STANDARD_ENV_PRESENT_BOOL_VALUE,
        )
        .env(STANDARD_ENV_INVALID_NAME, STANDARD_ENV_INVALID_VALUE);
}

fn configure_standard_import_env(command: &mut Command) {
    command
        .env_remove(STANDARD_IMPORT_ENV_MISSING_NAME)
        .env(
            STANDARD_IMPORT_ENV_PRESENT_NAME,
            STANDARD_IMPORT_ENV_PRESENT_VALUE,
        )
        .env(
            STANDARD_IMPORT_ENV_PRESENT_I32_NAME,
            STANDARD_IMPORT_ENV_PRESENT_I32_VALUE,
        )
        .env(
            STANDARD_IMPORT_ENV_PRESENT_U32_NAME,
            STANDARD_IMPORT_ENV_PRESENT_U32_VALUE,
        )
        .env(
            STANDARD_IMPORT_ENV_PRESENT_I64_NAME,
            STANDARD_IMPORT_ENV_PRESENT_I64_VALUE,
        )
        .env(
            STANDARD_IMPORT_ENV_PRESENT_U64_NAME,
            STANDARD_IMPORT_ENV_PRESENT_U64_VALUE,
        )
        .env(
            STANDARD_IMPORT_ENV_PRESENT_F64_NAME,
            STANDARD_IMPORT_ENV_PRESENT_F64_VALUE,
        )
        .env(
            STANDARD_IMPORT_ENV_PRESENT_BOOL_NAME,
            STANDARD_IMPORT_ENV_PRESENT_BOOL_VALUE,
        )
        .env(
            STANDARD_IMPORT_ENV_INVALID_NAME,
            STANDARD_IMPORT_ENV_INVALID_VALUE,
        );
}

fn temp_root(name: &str) -> PathBuf {
    let path =
        std::env::temp_dir().join(format!("glagol-promotion-{}-{}", name, std::process::id()));
    let _ = fs::remove_dir_all(&path);
    fs::create_dir_all(&path).unwrap_or_else(|err| panic!("create `{}`: {}", path.display(), err));
    path
}