Lstat see syscall.Lstat.

Mock is used to switch out the filesystem for a mock.

Open see os.Open.

ReadDir see ioutil.ReadDir.

ReadDirCount is an optimized way to call len(ReadDirNames).

ReadDirNames see os.File.ReadDirNames.

ReadFile see ioutil.ReadFile.

Restore puts back the real filesystem.

Stat see syscall.Stat.

Interface is the filesystem interface type.