def test_change_permissions_file(tmpdir):
with umask(0o022):
tf(tmpdir, "chmod +x '{f}'", "change permissions of {f} to rwxr-xr-x",
"change_permissions", lambda f: not access(str(f), X_OK))
def test_delete_file(tmpdir):
tf(tmpdir, "rm '{f}'", "delete {f}", "delete", lambda f: f.check())
