actualCaller, err := authenticator.Authenticate(security.AuthContext{GrpcContext: ctx})
			if len(tc.expectedErrMsg) > 0 {
				if err == nil {
					t.Errorf("Case %s: Succeeded. Error expected: %v", id, err)
				} else if err.Error() != tc.expectedErrMsg {
					t.Errorf("Case %s: Incorrect error message: \n%s\nVS\n%s",
						id, err.Error(), tc.expectedErrMsg)
				}
				return

		if err != nil {
			err = fmt.Errorf("container registry deployment failed: %v", err)
			scopes.Framework.Infof("=== FAILED: Deploy registry redirector server ===")
			_ = c.Close()
		} else {
			scopes.Framework.Info("=== SUCCEEDED: Deploy registry redirector server ===")
		}
	}()

	c.ns, err = namespace.New(ctx, namespace.Config{
		Prefix: ns,
	})
	if err != nil {

	defer func() {
		delta := time.Since(t0)
		i.ctx.RecordTraceEvent("istio-cleanup", delta.Seconds())
		scopes.Framework.Infof("=== SUCCEEDED: Cleanup Istio in %v [Suite=%s] ===", delta, i.ctx.Settings().TestID)
	}()

	if i.cfg.DumpKubernetesManifests {
		i.installer.Dump(i.ctx)
	}

	if i.cfg.DeployIstio {
		errG := multierror.Group{}

    func_op.walk([&output_file_idx, &ctx, &func_name, &aggregator_ops_to_ignore,
                  this](Operation* op) {
      for (Region& region : op->getRegions()) {
        if (succeeded(InsertCalibrationStatisticsSaverOp(
                region, ctx,
                GetOutputFilePath(calibration_data_dir_, func_name,
                                  output_file_idx),

		base.SetExitStatus(2) // failed at 'go help cmd'
		base.Exit()
	}

	if len(cmd.Commands) > 0 {
		PrintUsage(os.Stdout, cmd)
	} else {
		tmpl(os.Stdout, helpTemplate, cmd)
	}
	// not exit 2: succeeded at 'go help cmd'.
	return
}

var usageTemplate = `{{.Long | trim}}

Usage:

	{{.UsageLine}} <command> [arguments]

The commands are:
{{range .Commands}}{{if or (.Runnable) .Commands}}

        tryBuildDistribution(checkoutDir)
        copyToFinalDestination(checkoutDir)

        println("Building the commit distribution in $checkoutDir succeeded, now the baseline is ${commitBaseline.get()}")
    }

    /**
     * Sometimes, the nightly might be cleaned up before GA comes out. If this happens, we fall back to latest RC version or nightly version.
     */

	defer func() {
		if err != nil {
			scopes.Framework.Errorf("=== FAILED: Create namespace %s ===", cfg.Prefix)
			scopes.Framework.Error(err)
		} else {
			scopes.Framework.Infof("=== SUCCEEDED: Create namespace %s in %v ===", cfg.Prefix, time.Since(start))
		}
	}()

	if ctx.Settings().StableNamespaces {
		return Claim(ctx, cfg)
	}
	cfg.overwriteRevisionIfEmpty(ctx.Settings().Revisions.Default())

const (
	// Indicates that the migration is running.
	MigrationRunning MigrationConditionType = "Running"
	// Indicates that the migration has completed successfully.
	MigrationSucceeded MigrationConditionType = "Succeeded"
	// Indicates that the migration has failed.
	MigrationFailed MigrationConditionType = "Failed"
)

// Describes the state of a migration at a certain point.
type MigrationCondition struct {

                            break;
                        case CORRUPTED:
                            delegate.transferCorrupted(transferEvent);
                            break;
                        case SUCCEEDED:
                            delegate.transferSucceeded(transferEvent);
                            break;
                        case FAILED:
                            delegate.transferFailed(transferEvent);

	buf := make([]byte, 1<<20)
	buffers := make(Buffers, 1<<10)
	for i := range buffers {
		buffers[i] = buf
	}
	if _, err := buffers.WriteTo(c1); err == nil {
		t.Fatal("Buffers.WriteTo(closed conn) succeeded, want error")
	}