func (pSlice MessageSlice) MarshalJSON() ([]byte, error) {
	buffer := bytes.NewBufferString("[")
	sliceLength := len(pSlice)
	for index, msg := range pSlice {
		b, err := protomarshal.Marshal(msg)
		if err != nil {
			return nil, err
		}
		buffer.Write(b)
		if index < sliceLength-1 {
			buffer.WriteString(",")
		}
	}
	buffer.WriteString("]")
	return buffer.Bytes(), nil

		},
		{
			name:    "errors if config dump is not primed",
			wantErr: true,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			gotOut := &bytes.Buffer{}
			cw := &ConfigWriter{Stdout: gotOut}
			cd, _ := os.ReadFile("testdata/configdump.json")
			if tt.callPrime {
				cw.Prime(cd)
			}
			err := cw.PrintBootstrapDump("json")
			if tt.wantOutputFile != "" {

	WantException bool
}

func VerifyOutput(t *testing.T, cmd *cobra.Command, c TestCase) {
	t.Helper()

	cmd.SetArgs(c.Args)

	var out bytes.Buffer
	cmd.SetOut(&out)
	cmd.SetErr(&out)
	cmd.SilenceUsage = true

	fErr := cmd.Execute()
	output := out.String()

	if c.ExpectedOutput != "" && c.ExpectedOutput != output {

			}
			verifyExecTestOutput(t, XdsStatusCommand(ctx), c)
		})
	}
}

func verifyExecTestOutput(t *testing.T, cmd *cobra.Command, c execTestCase) {
	t.Helper()

	var out bytes.Buffer
	cmd.SetArgs(c.args)
	cmd.SilenceUsage = true
	cmd.SetOut(&out)
	cmd.SetErr(&out)

	fErr := cmd.Execute()
	output := out.String()

	if c.expectedOutput != "" && c.expectedOutput != output {

    #- global
    #- "{{ valueOrDefault .DeploymentMeta.Namespace \"default\" }}.global"

    # Kubernetes >=v1.11.0 will create two PriorityClass, including system-cluster-critical and
    # system-node-critical, it is better to configure this in order to make sure your Istio pods
    # will not be killed because of low priority class.
    # Refer to https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/#priorityclass

                  }
                ],
                "transport_socket": {
                  "name": "raw_buffer",
                  "typed_config": {
                    "@type": "type.googleapis.com/envoy.extensions.transport_sockets.raw_buffer.v3.RawBuffer"
                  }
                }
              }
            },
            "metadata": {
              "filter_metadata": {

                  }
                ],
                "transport_socket": {
                  "name": "raw_buffer",
                  "typed_config": {
                    "@type": "type.googleapis.com/envoy.extensions.transport_sockets.raw_buffer.v3.RawBuffer"
                  }
                }
              }
            },
            "metadata": {
              "filter_metadata": {

			client.Kube().CoreV1().Pods(t.Namespace).Create(context.TODO(), t, metav1.CreateOptions{})
		}
	}

	if c.configDumps == nil {
		c.configDumps = map[string][]byte{}
	}

	var out bytes.Buffer
	rootCmd := Cmd(ctx)
	rootCmd.SetArgs(c.args)

	rootCmd.SetOut(&out)
	rootCmd.SetErr(&out)

	if c.namespace != "" {
		describeNamespace = c.namespace
	}

	tests := []struct {
		name    string
		input   map[string]*discovery.DiscoveryResponse
		want    string
		wantErr bool
	}{
		{
			name: "prints multiple istiod inputs to buffer in alphabetical order by pod name",
			input: map[string]*discovery.DiscoveryResponse{
				"istiod1": xdsResponseInput("istiod1", []clientConfigInput{
					{
						proxyID:        "proxy1",
						clusterID:      "cluster1",

	return &ExecList{
		Cmd:  cmd,
		Args: args,
	}
}

func ExecuteOutput(cmd string, args ...string) (string, error) {
	externalCommand := exec.Command(cmd, args...)
	stdout := &bytes.Buffer{}
	stderr := &bytes.Buffer{}
	externalCommand.Stdout = stdout
	externalCommand.Stderr = stderr

	err := externalCommand.Run()

	if err != nil || len(stderr.Bytes()) != 0 {
		return stderr.String(), err
	}