var out bytes.Buffer

			client := kube.NewFakeClient(tc.webhooksBefore.DeepCopyObject(), tc.namespaces.DeepCopyObject())
			skipConfirmation = true
			err := setTag(context.Background(), client, tc.tag, tc.revision, "istio-system", false, &out, nil)
			if tc.error == "" && err != nil {
				t.Fatalf("expected no error, got %v", err)
			}
			if tc.error != "" {
				if err == nil {

  "cniVersion": "0.3.1",
  "type": "istio-cni",
  "log_level": "info",
  "kubernetes": {
      "kubeconfig": "__KUBECONFIG_FILEPATH__",
      "cni_bin_dir": "/opt/cni/bin",
      "exclude_namespaces": [ "istio-system" ]
  }
}
`
)

func getEnv(key, fallback string) string {
	if value, ok := os.LookupEnv(key); ok {
		return value
	}
	return fallback
}

func setEnv(key, value string, t *testing.T) {

	}{
		{
			name:           "webhook-pointing-to-service",
			istioNamespace: "istio-system",
			webhook:        revisionCanonicalWebhook,
			whURL:          "",
			whSVC:          "istiod-revision",
			whCA:           "ca",
		},
		{
			name:           "webhook-custom-istio-namespace",
			istioNamespace: "istio-system-blue",
			webhook:        revisionCanonicalWebhook,
			whURL:          "",

				IstioNamespace: "istio-system",
			})
			if !c.noIstiod {
				client, err := ctx.CLIClientWithRevision(c.revision)
				assert.NoError(t, err)
				_, err = client.Kube().CoreV1().Pods("istio-system").Create(context.TODO(), &corev1.Pod{
					ObjectMeta: metav1.ObjectMeta{
						Name:      "istiod-test",
						Namespace: "istio-system",
						Labels: map[string]string{

  # Capture cluster configuration for later use with kube-inject
  kubectl -n istio-system get cm istio-sidecar-injector  -o jsonpath="{.data.config}" > /tmp/inj-template.tmpl
  kubectl -n istio-system get cm istio -o jsonpath="{.data.mesh}" > /tmp/mesh.yaml
  kubectl -n istio-system get cm istio-sidecar-injector -o jsonpath="{.data.values}" > /tmp/values.json

  # Use kube-inject based on captured configuration

func mcpDialOptions(ctx context.Context, gcpProject string, k8sCreds credentials.PerRPCCredentials) ([]grpc.DialOption, error) {
	systemRoots, err := x509.SystemCertPool()
	if err != nil {
		return nil, fmt.Errorf("failed to get system cert pool: %w", err)
	}
	gcpCreds, err := oauth.NewApplicationDefault(ctx)
	if err != nil {
		return nil, fmt.Errorf("failed to get application default credentials: %w", err)
	}

	return []grpc.DialOption{

  istioctl proxy-config endpoint <pod-name[.namespace]> --address 172.17.0.2 -o json

  # Retrieve full endpoint with a cluster name (outbound|9411||zipkin.istio-system.svc.cluster.local).
  istioctl proxy-config endpoint <pod-name[.namespace]> --cluster "outbound|9411||zipkin.istio-system.svc.cluster.local" -o json
  # Retrieve full endpoint with the status (healthy).
  istioctl proxy-config endpoint <pod-name[.namespace]> --status healthy -ojson

			ExpectedRegexp: regexp.MustCompile("http://localhost:3456"),
			WantException:  false,
		},
	}

	dbCmd := Dashboard(cli.NewFakeContext(&cli.NewFakeContextOption{
		Namespace: "istio-system",
	}))
	for i, c := range cases {
		t.Run(fmt.Sprintf("case %d %s", i, strings.Join(c.Args, " ")), func(t *testing.T) {
			testutil.VerifyOutput(t, dbCmd, c)
			cleanupTestCase()
		})
	}
}

	if err != nil {
		return fmt.Errorf("failed to get profile, namespace or enabled components: %v", err)
	}

	// Ignore the err because we don't want to show
	// "no running Istio pods in istio-system" for the first time
	_ = detectIstioVersionDiff(p, tag, ns, kubeClient, iop)
	exists := revtag.PreviousInstallExists(context.Background(), kubeClient.Kube())
	err = detectDefaultWebhookChange(p, kubeClient, iop, exists)

      consecutiveErrors: 7
`
	invalidYAML = `
(...!)`
	validKubernetesYAML = `
apiVersion: v1
kind: Namespace
metadata:
  name: istio-system
`
	validKubernetesJSON = `{
"apiVersion": "v1",
"kind": "Namespace",
"metadata": {
	"name": "istio-system"
}
}`
	invalidUnsupportedKey = `
apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: productpage