46 lines
1.2 KiB
Plaintext
46 lines
1.2 KiB
Plaintext
(module main)
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(fn parse_i64 ((text string)) -> (result i64 i32)
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(std.string.parse_i64_result text))
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(fn parsed_text ((text string)) -> string
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(std.num.i64_to_string (std.result.unwrap_ok (parse_i64 text))))
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(test "parse i64 zero ok"
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(= (parsed_text "0") "0"))
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(test "parse i64 negative ok"
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(= (parsed_text "-7") "-7"))
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(test "parse i64 low ok"
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(= (parsed_text "-9223372036854775808") "-9223372036854775808"))
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(test "parse i64 high ok"
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(= (parsed_text "9223372036854775807") "9223372036854775807"))
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(test "parse i64 empty err"
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(let value (result i64 i32) (parse_i64 ""))
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(if (std.result.is_err value)
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(= (std.result.unwrap_err value) 1)
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false))
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(test "parse i64 plus err"
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(let value (result i64 i32) (parse_i64 "+1"))
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(if (std.result.is_err value)
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(= (std.result.unwrap_err value) 1)
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false))
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(test "parse i64 above range err"
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(let value (result i64 i32) (parse_i64 "9223372036854775808"))
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(if (std.result.is_err value)
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(= (std.result.unwrap_err value) 1)
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false))
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(fn main () -> i32
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(let value (result i64 i32) (parse_i64 "-7"))
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(if (std.result.is_ok value)
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(if (= (std.num.i64_to_string (std.result.unwrap_ok value)) "-7")
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0
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1)
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(std.result.unwrap_err value)))
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