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RNA-Transcription: Add invalid input #305

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RNA-Transcription: Add invalid input #305

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15 changes: 14 additions & 1 deletion exercises/rna-transcription/uTestRnaTranscription.pas
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Original file line number Diff line number Diff line change
Expand Up @@ -34,10 +34,13 @@ RnaTranscriptionTest = class(TObject)
[Test]
[Ignore]
procedure Rna_complement;
[Test]
[Ignore]
procedure Rna_complement_with_invalid_input;
end;

implementation
uses uRnaTranscription;
uses uRnaTranscription, SysUtils;

procedure RnaTranscriptionTest.Rna_complement_of_cytosine_is_guanine;
begin
Expand Down Expand Up @@ -69,6 +72,16 @@ procedure RnaTranscriptionTest.Rna_complement;
Assert.AreEqual('UGCACCAGAAUU', complement.OfDna('ACGTGGTCTTAA'));
end;

procedure RnaTranscriptionTest.Rna_complement_with_invalid_input;
var MyProc: TTestLocalMethod;
begin
MyProc := procedure
begin
complement.OfDna('ACGTXXXCTTAA');
end;
Assert.WillRaiseWithMessage(MyProc, Exception, 'Invalid DNA character');
end;

initialization
TDUnitX.RegisterTestFixture(RnaTranscriptionTest);
end.