lib/std/fs.zig         |  67 +++++++++++++++++++--
 lib/std/fs/test.zig    |  44 ++++++++++++++
 lib/std/os.zig         |  31 ++--------
 lib/std/os/test.zig    | 101 +++++++++++---------------------
 lib/std/os/windows.zig |   4 +-
 5 files changed, 148 insertions(+), 99 deletions(-)