}

	data, err = os.ReadFile(golden)
	if err != nil {
		t.Error(err)
	}
	if bytes.Contains(data, []byte("\r")) {
		t.Errorf("%s contains CR's", golden)
	}
}

func TestBackupFile(t *testing.T) {
	dir, err := os.MkdirTemp("", "gofmt_test")
	if err != nil {
		t.Fatal(err)
	}
	defer os.RemoveAll(dir)
	name, err := backupFile(filepath.Join(dir, "foo.go"), []byte("  package main"), 0644)