table := map[string]struct{ newPath, removedDir string }{
		"a/b/c": {"a/c", "b"},
	}
	for slashInput, expect := range table {
		input := filepath.FromSlash(slashInput)

		gotPath, gotRemoved := removeLastDir(input)
		if e, a := filepath.FromSlash(expect.newPath), gotPath; e != a {
			t.Errorf("%v: wanted %v, got %v", input, e, a)
		}
		if e, a := filepath.FromSlash(expect.removedDir), gotRemoved; e != a {