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protein-translation: Add tests for invalid sequences #1107

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protein-translation: Add tests for invalid sequences #1107

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16 changes: 16 additions & 0 deletions exercises/practice/protein-translation/test/Tests.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -116,6 +116,22 @@ cases = [ Case { description = "Methionine RNA sequence"
, input = "UGGUGUUAUUAAUGGUUU"
, expected = Just ["Tryptophan","Cysteine","Tyrosine"]
}
, Case { description = "Translation fails on unknown codon"
, input = "ABC"
, expected = Nothing
}
, Case { description = "Translation stops if STOP codon before invalid codon"
, input = "UAGABC"
, expected = Just []
}
, Case { description = "Translation fails if codon is too short"
, input = "AUGA"
, expected = Nothing
}
, Case { description = "Translation stops if STOP codon before too short codon"
, input = "UAGA"
, expected = Just []
}
]

-- baf663fecc756872af85e8ae6ed24f3f7cbb9388