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StringSegment behavior #55501

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Merged
eerhardt merged 6 commits into from
Jul 15, 2021
Merged

StringSegment behavior #55501

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78b34dd
Add tests for old issue
hrrrrustic Jul 12, 2021
0cb330e
Add test for new issue
hrrrrustic Jul 12, 2021
78f7f5b
fix behavior for old issue
hrrrrustic Jul 12, 2021
0f43edb
fix behavior for new issue
hrrrrustic Jul 12, 2021
1fd3d1b
Update IndexOf checks for consistency
hrrrrustic Jul 12, 2021
b96959f
Apply suggestions from code review
hrrrrustic Jul 12, 2021
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Add tests for old issue
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@hrrrrustic
hrrrrustic committed Jul 12, 2021
commit 78b34ddefd9cd25dfdbb8857ee63db6297237699
39 changes: 39 additions & 0 deletions src/libraries/Microsoft.Extensions.Primitives/tests/StringSegmentTest.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -1134,6 +1134,19 @@ public void IndexOf_ReturnsMinusOne_IfElementNotInSegment()
Assert.Equal(-1, result);
}

[Fact]
public void IndexOf_ReturnsMinusOne_OnDefaultStringSegment()
{
// Arrange
StringSegment segment = default;

// Act
int result = segment.IndexOf(',');

// Assert
Assert.Equal(-1, result);
}

[Fact]
public void IndexOf_SkipsANumberOfCaracters_IfStartIsProvided()
{
Expand Down Expand Up @@ -1211,6 +1224,19 @@ public void IndexOfAny_ReturnsMinusOne_IfElementNotInSegment()
Assert.Equal(-1, result);
}

[Fact]
public void IndexOfAny_ReturnsMinusOne_OnDefaultStringSegment()
{
// Arrange
StringSegment segment = default;

// Act
int result = segment.IndexOfAny(new[] { ',' });

// Assert
Assert.Equal(-1, result);
}

[Fact]
public void IndexOfAny_SkipsANumberOfCaracters_IfStartIsProvided()
{
Expand Down Expand Up @@ -1265,6 +1291,19 @@ public void LastIndexOf_ReturnsMinusOne_IfElementNotInSegment()
Assert.Equal(-1, result);
}

[Fact]
public void LastIndexOf_ReturnsMinusOne_OnDefaultStringSegment()
{
// Arrange
StringSegment segment = default;

// Act
int result = segment.LastIndexOf(',');

// Assert
Assert.Equal(-1, result);
}

[Fact]
public void Value_DoesNotAllocateANewString_IfTheSegmentContainsTheWholeBuffer()
{
Expand Down