Bug: iterate over all drives and iterate over all files throws error if no file is create in C?

[klace92]

On Net framework create a default "MockFileSystem" seems to default create a C drive but no root directory. So if the unit test creates files on other drives then C. Then fs.DriveInfo.GetDrives().SelectMany(drive => drive.RootDirectory.EnumerateFiles("*", SearchOption.AllDirectories)).ToList() throws error ->

System.IO.DirectoryNotFoundException: Could not find a part of the path 'C:'

Here some sample code

        [TestMethod]
        public void Test()
        {
            var fs = new MockFileSystem();
            //fs.Directory.CreateDirectory(fs.Directory.GetCurrentDirectory()); // If force creating folder it works
            var files = fs.DriveInfo.GetDrives()
                .SelectMany(drive => drive.RootDirectory.EnumerateFiles("*", SearchOption.AllDirectories)).ToList();
            Console.WriteLine(files.Count);
        }

Is this really correct behavior? fells like root folder should exist for the drive?

[vbreuss]

Thanks for reporting, @klace92. I found the issue and will release a fix shortly.

[github-actions]

This is addressed in release v4.3.3.