func TestEnsureAdminClusterRoleBinding(t *testing.T) {
	dir := testutil.SetupTempDir(t)
	defer os.RemoveAll(dir)

	cfg := testutil.GetDefaultInternalConfig(t)
	cfg.CertificatesDir = dir

	ca := certsphase.KubeadmCertRootCA()
	_, _, err := ca.CreateAsCA(cfg)
	if err != nil {
		t.Fatal(err)
	}

	tests := []struct {
		name                  string
		expectedRBACError     bool
		expectedError         bool