lib/std/fs.zig         |  13 +-
 lib/std/fs/test.zig    | 977 ++++++++++++++++++--------------
 lib/std/os.zig         |  27 +-
 lib/std/os/test.zig    |   4 +-
 lib/std/os/windows.zig | 166 +++++-
 5 files changed, 736 insertions(+), 451 deletions(-)