MockFileSystem with currentDirectory should return only one currentDirectory

[LosManos]

var fileSystem = new MockFileSystem(new Dictionary<string, MockFileData>
{
    { @"myfile.txt", new MockFileData("A") },
}, @"current");

makes
fileSystem.AllFiles.Single()
return
"current\current\current\myfile.txt"
which is two too many.
I also believe there should be a prepending \.

---

A remedy is to prepend "current" with a slash like so"

var fileSystem = new MockFileSystem(new Dictionary<string, MockFileData>
{
    { @"myfile.txt", new MockFileData("A") },
}, @"\current");

to give the result
"\current\myfile.txt"

---

Although I present a work around it might be considered a but as it is imho an unexpected behaviour.

[fgreinacher]

Thanks for reporting! I’m wondering whether we should force currentDirectory to be an absolute path.

[LosManos]

Forcing currentDirectory to be rooted sounds ok to me.

FWIW: Retrieving Environment.CurrentDirectory alway returns a rooted path. (with drive letter in Windows and /mnt in WSL. (I have not tried WSL2))
Setting it does not have to be rooted but can be relative to current directory.