Creation of the default "temp" directory in MockFileSystem should have a toggle

[rcdailey]

Creation of the default "temp" directory in MockFileSystem should have a toggle

[vbreuss]

Fixed with #1013

[vbreuss]

@rcdailey : Maybe you want to consider checking out Testably.Abstractions.Testing. I created an alternative mock file system that uses the same interface as System.IO.Abstractions, so it is compatible with your production code.
This issue is not present there, as the file system per default does not initialize anything, unless you explicitly tell it to.
Due to an extensive test suite that runs both against the mocked and against the real file system, it is much closer to the real file system also in edge cases.

[fgreinacher]

That's a good catch and something we did not anticipate in #372 and #590.

I would rather not change this behavior back because it seems to work for most users :)

I'd tend towards a new constructor with options like you suggested. Something like this:

public class MockFileSystemOptions
{
    string CurrentDirectory { get; init; } = ""
    bool CreateDefaultTempDir { get; init } = true
}


public MockFileSystem(IDictionary<string, MockFileData> files, MockFileSystemOptions options)

Happy to discuss further in a PR :)