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Task/Assertions/EchoLisp/assertions.l
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Task/Assertions/EchoLisp/assertions.l
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(assert (integer? 42)) → #t ;; success returns true
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;; error and return to top level if not true;
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(assert (integer? 'quarante-deux))
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⛔ error: assert : assertion failed : (#integer? 'quarante-deux)
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;; assertion with message (optional)
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(assert (integer? 'quarante-deux) "☝️ expression must evaluate to the integer 42")
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💥 error: ☝️ expression must evaluate to the integer 42 : assertion failed : (#integer? 'quarante-deux)
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