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Code Issues

Update string.With*Alternative tests

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Oliver Booth 2022-03-06 17:36:58 +00:00
parent 4f99763a0a
commit 5509305c5a
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1 changed files with 21 additions and 6 deletions
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27
X10D.Tests/src/Core/StringTests.cs
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@ -65,16 +65,31 @@ namespace X10D.Tests.Core
}
/// <summary>
/// Tests for <see cref="StringExtensions.WithAlternative" />.
/// Tests <see cref="StringExtensions.WithEmptyAlternative" /> and
/// <see cref="StringExtensions.WithWhiteSpaceAlternative"/>.
/// </summary>
[TestMethod]
public void WithAlternative()
{
Assert.AreEqual("Hello", "Hello".WithAlternative("Discarded"));
Assert.AreEqual("Alternative", string.Empty.WithAlternative("Alternative"));
Assert.AreEqual(" ", " ".WithAlternative("Discarded"));
Assert.AreEqual("Alternative", " ".WithAlternative("Alternative", true));
Assert.AreEqual("Alternative", ((string)null).WithAlternative("Alternative"));
const string inputA = "Hello World";
const string inputB = " ";
const string inputC = "";
const string? inputD = null;
const string alternative = "ALTERNATIVE";
string resultA = inputA.WithEmptyAlternative(alternative);
string resultB = inputB.WithEmptyAlternative(alternative);
string resultBWithWhitespace = inputB.WithWhiteSpaceAlternative(alternative);
string resultC = inputC.WithEmptyAlternative(alternative);
string resultD = inputD.WithEmptyAlternative(alternative);
Assert.ThrowsException<ArgumentNullException>(() => ((string?)null).WithEmptyAlternative(null!));
Assert.AreEqual(resultA, inputA);
Assert.AreEqual(resultB, inputB);
Assert.AreEqual(resultBWithWhitespace, alternative);
Assert.AreEqual(resultC, alternative);
Assert.AreEqual(resultD, alternative);
}
}
}