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

	fErr := rootCmd.Execute()
	if fErr != nil {
		t.Fatalf("options failed with %v and %q\n", fErr, out.String())
	}
	if !regexp.MustCompile(expectedOutput).Match(out.Bytes()) {
		t.Fatalf("'istioctl options' expected output\n%s\n  got\n%s",
			expectedOutput, out.String())
	}

		return err
	}

	if expectedKC.Full == string(existingKC) {
		installLog.Debugf("preexisting kubeconfig %s is an exact match for expected, no need to update", kubeconfigFilepath)
		return nil
	}

	return fmt.Errorf("kubeconfig on disk differs from expected, assuming we need to rewrite it")

	}

	if c.expectedString != "" && !strings.Contains(output, c.expectedString) {
		t.Fatalf("Output didn't match for '%s %s'\n got %v\nwant: %v", cmd.Name(), strings.Join(c.args, " "), output, c.expectedString)
	}

	if c.wantException {
		if fErr == nil {

)

type revisionCount struct {
	// pods in a revision
	pods int
	// pods that are disabled from injection
	disabled int
	// pods that are enabled for injection, but whose revision doesn't match their namespace's revision
	needsRestart int
}

func Cmd(cliContext cli.Context) *cobra.Command {
	cmd := &cobra.Command{
		Use:     "injector",
		Short:   "List sidecar injector and sidecar versions",

		cmd *cobra.Command, args []string, toComplete string,
	) ([]string, cobra.ShellCompDirective) {
		return completion.ValidNamespaceArgs(cmd, ctx, args, toComplete)
	})

	// Attach the Istio logging options to the command.
	root.LoggingOptions.AttachCobraFlags(rootCmd)
	hiddenFlags := []string{
		"log_as_json", "log_rotate", "log_rotate_max_age", "log_rotate_max_backups",