}
}

func TestExtractHostPort(t *testing.T) {
	testCases := []struct {
		addr        string
		host        string
		port        string
		expectedErr error
	}{
		{"", "", "", errors.New("unable to process empty address")},
		{"localhost:9000", "localhost", "9000", nil},
		{"http://:9000/", "", "9000", nil},
		{"http://8.8.8.8:9000/", "8.8.8.8", "9000", nil},
		{"https://facebook.com:9000/", "facebook.com", "9000", nil},

	if err != nil {
		return fmt.Errorf("could not build port forwarder for prometheus: %v", err)
	}

	if err = fw.Start(); err != nil {
		return fmt.Errorf("failure running port forward process: %v", err)
	}

	// Close the forwarder either when we exit or when an this processes is interrupted.
	defer fw.Close()
	dashboard.ClosePortForwarderOnInterrupt(fw)

	} else {
		installLog.Infof("valid Istio config present in node-level CNI file %s, not modifying", in.cniConfigFilepath)
	}

	return copiedFiles, nil
}

// Run starts the installation process, verifies the configuration, then sleeps.
// If the configuration is invalid, a full redeployal of config, binaries, and svcAcct credentials to the
// shared node CNI dir will be attempted.
//

		idx      = strings.Index(str, ",")
		settings = ParseTagSetting(str, ",")
	)

	// optimize match english letters and midline
	// The following code is basically called in for.
	// In order to avoid the performance problems caused by repeated compilation of regular expressions,
	// it only needs to be done once outside, so optimization is done here.
	if idx != -1 && regEnLetterAndMidline.MatchString(str[0:idx]) {
		name = str[0:idx]
	} else {

				// adding unexpected entries into the config.
				//
				// With newer config disallowing changing / turning off
				// notification targets without removing ARN in notification
				// configuration we won't see this problem anymore.
				if reflect.DeepEqual(queue.ARN, arnErr.ARN) && i < len(config.QueueList) {
					config.QueueList = append(config.QueueList[:i],
						config.QueueList[i+1:]...)
				}

	componentName name.ComponentName, opts *applyOptions, iop *v1alpha1.IstioOperator, l clog.Logger,
) error {
	// Needed in case we are running a test through this path that doesn't start a new process.
	cache.FlushObjectCaches()
	reconciler, err := helmreconciler.NewHelmReconciler(client, kubeClient, iop, &helmreconciler.Options{DryRun: opts.DryRun, Log: l})
	if err != nil {
		l.LogAndError(err)
		return err
	}

	// Officially, the name and comment fields are supposed to be encoded
	// in CP-437 (which is mostly compatible with ASCII), unless the UTF-8
	// flag bit is set. However, there are several problems:
	//
	//	* Many ZIP readers still do not support UTF-8.
	//	* If the UTF-8 flag is cleared, several readers simply interpret the
	//	name and comment fields as whatever the local system encoding is.
	//

	systemMemoryCollectorPath           collectorPath = "/system/memory"
	systemCPUCollectorPath              collectorPath = "/system/cpu"
	systemProcessCollectorPath          collectorPath = "/system/process"
	systemGoCollectorPath               collectorPath = "/system/go"

	clusterHealthCollectorPath       collectorPath = "/cluster/health"
	clusterUsageObjectsCollectorPath collectorPath = "/cluster/usage/objects"

		required = append(required, fileFeatures(file, true)...)
	}
	exception := fileFeatures(filepath.Join(testenv.GOROOT(t), "api/except.txt"), false)

	if exitCode == 1 {
		t.Errorf("API database problems found")
	}
	if !compareAPI(bw, features, required, exception) {
		t.Errorf("API differences found")
	}
}

// export emits the exported package features.
func (w *Walker) export(pkg *apiPackage) {

	// can easily eat into the internode bandwidth. This function would be mostly
	// TX saturating, however there are situations where a RX might also saturate.
	// To avoid these problems we must split the work at scale. With 1000 node
	// setup becoming a reality we must try to shard the work properly such as
	// pick 10 nodes that precisely can send those 100 requests the first node