MkdirTest.CanCreateWritableDir
MkdirTest.DirAlreadyExists
MkdirTest.FailsOnDirWithoutWritePerms
MkdirTest.HonorsUmask
MkdirTest.HonorsUmask2
MkdirTest.MkdirAtEmptyPath
MkdirTest.TrailingSlash
