func TestRemoveAllLarge(t *testing.T) {
	if testing.Short() {
		t.Skip("skipping in short mode")
	}
	t.Parallel()

	tmpDir := t.TempDir()
	path := filepath.Join(tmpDir, "_TestRemoveAllLarge_")

	// Make directory with 1000 files and remove.
	if err := MkdirAll(path, 0777); err != nil {
		t.Fatalf("MkdirAll %q: %s", path, err)
	}
	for i := 0; i < 1000; i++ {