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🧪 Add reference equality edge case tests for StringExtensions.Repeat #92

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Merged
johnstrand merged 1 commit into from
Jul 20, 2026
Merged

🧪 Add reference equality edge case tests for StringExtensions.Repeat #92

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22 changes: 22 additions & 0 deletions tests/GameUtils.Tests/Extensions/StringExtensionsTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -53,4 +53,26 @@ public void Repeat_NegativeCount_ThrowsArgumentOutOfRangeException()
string str = "test";
Assert.ThrowsExactly<ArgumentOutOfRangeException>(() => str.Repeat(-1));
}

[TestMethod]
public void Repeat_CountZero_ReturnsStringEmpty()
{
var result = "test".Repeat(0);
Assert.AreSame(string.Empty, result);
}

[TestMethod]
public void Repeat_EmptyString_ReturnsStringEmpty()
{
var result = string.Empty.Repeat(5);
Assert.AreSame(string.Empty, result);
}

[TestMethod]
public void Repeat_CountOne_ReturnsOriginalString()
{
string str = "test";
var result = str.Repeat(1);
Assert.AreSame(str, result);
}
}
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