MockFileSystem.File.Create(string) returns a stream with CanRead false

[pianomanjh]

MockFileStream, when returned as a result of a MockFileSystem.File.Create(string path) call, incorrectly has CanRead set to false.
This is different than System.IO.File.Create(string path), which correctly sets CanRead to true.

CanRead being false, can result in problems when used with code that expects true, for example, new BinaryReader(Stream stream), which checks the CanRead property in it's ctor, and throws when not true.

[pianomanjh]

this was regressed by #714

[pianomanjh]

workaround until fix is merged is to use File.Open, i.e.:
_fileSystem.File.Open(filePath, FileMode.Create, FileAccess.ReadWrite)

[github-actions]

This is addressed in release v16.1.8.