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fix: make MockFile.Exists handle empty string #811

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Merged
fgreinacher merged 4 commits into from
Feb 17, 2022
Merged

fix: make MockFile.Exists handle empty string #811

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207202e
fix: make MockFile.Exists handle empty string
mas-dude Feb 10, 2022
9d2ec6f
Added try catch block to exists to be inline with dotnet runtime
mas-dude Feb 15, 2022
e88a38c
Added NotSupportedException to catch block
mas-dude Feb 16, 2022
6e1a281
Added comments for unhandled exception
mas-dude Feb 16, 2022
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5 changes: 5 additions & 0 deletions src/System.IO.Abstractions.TestingHelpers/MockFile.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -203,6 +203,11 @@ public override bool Exists(string path)
return false;
}

if (path.Length == 0)
{
return false;
}

var file = mockFileDataAccessor.GetFile(path);
return file != null && !file.IsDirectory;
}
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13 changes: 13 additions & 0 deletions tests/System.IO.Abstractions.TestingHelpers.Tests/MockFileExistsTests.cs
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Expand Up @@ -88,6 +88,19 @@ public void MockFile_Exists_ShouldReturnFalseForNullPath()
Assert.IsFalse(result);
}

[Test]
public void MockFile_Exists_ShouldReturnFalseForEmptyStringPath()
{
// Arrange
var fileSystem = new MockFileSystem();

// Act
var result = fileSystem.File.Exists(string.Empty);

// Assert
Assert.IsFalse(result);
}

[Test]
public void MockFile_Exists_ShouldReturnFalseForDirectories()
{
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