// Create existing config file if specified in test case
			cniConfigFilePath := filepath.Join(cniNetDir, c.configFilename)
			if err := file.AtomicCopy(filepath.Join("testdata", c.existingConfigFilename), cniNetDir, c.configFilename); err != nil {
				t.Fatal(err)
			}

			// Create existing binary files
			if err := os.WriteFile(filepath.Join(cniBinDir, "istio-cni"), []byte{1, 2, 3}, 0o755); err != nil {
				t.Fatal(err)
			}

		t.Fatalf("Unexpected output for 'istioctl %s'\n got: %q\nwant: %q", strings.Join(c.args, " "), output, c.expectedOutput)
	}

	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 {

			"ingressIP":  "fd00:10:96::2",
		},
	}
	for _, dir := range files {
		if !dir.IsDir() {
			continue
		}
		testdir := path.Join("testdata/vmconfig", dir.Name())
		t.Cleanup(func() {
			for k := range generated {
				os.Remove(path.Join(testdir, k))
			}
		})
		t.Run(dir.Name(), func(t *testing.T) {
			createClientFunc := func(client kube.CLIClient) {

				if includeConfigType {
					name := fmt.Sprintf("listener/%s", l.Name)
					fmt.Fprintf(w, "%v\t%v\t%v\t%v\t%v\n", name, strings.Join(addresses, ","), port, match.match, match.destination)
				} else {
					fmt.Fprintf(w, "%v\t%v\t%v\t%v\n", strings.Join(addresses, ","), port, match.match, match.destination)
				}
			}
		} else {
			listenerType := retrieveListenerType(l)
			if includeConfigType {

		out[cmd] = objs
	}

	return out, nil
}

// fakeApplyManifest runs istioctl install.
func fakeApplyManifest(inFile, flags string, chartSource chartSourceType) (*ObjectSet, error) {
	inPath := filepath.Join(testDataDir, "input", inFile+".yaml")
	manifest, err := runManifestCommand("install", []string{inPath}, flags, chartSource, nil)
	if err != nil {
		return nil, fmt.Errorf("error %s: %s", err, manifest)
	}

	k8sServicePort = "443"
	kubeCAFilepath = "testdata/kube-ca.crt"
	saToken        = "service_account_token_string"
)

func TestCreateValidKubeconfigFile(t *testing.T) {
	tmp := t.TempDir()
	os.WriteFile(filepath.Join(tmp, "token"), []byte(saToken), 0o644)
	constants.ServiceAccountPath = tmp
	cases := []struct {
		name               string
		expectedFailure    bool
		k8sServiceProtocol string
		k8sServiceHost     string

import (
	"context"
	"net"
	"path/filepath"
	"testing"

	"google.golang.org/grpc"
	"google.golang.org/grpc/credentials/insecure"
)

func TestCNIListener(t *testing.T) {
	f := filepath.Join(t.TempDir(), "test")
	l, err := NewListener(f)
	if err != nil {
		t.Fatalf("unexpected error %v", err)
	}
	defer l.Close()
	conn, err := connect(f)
	if err != nil {
		t.Fatalf("failed to connect %v", err)
	}

		t.Fatalf("Unexpected output for 'istioctl %s'\n got: %q\nwant: %q", strings.Join(c.args, " "), output, c.expectedOutput)
	}

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

	if c.wantException {
		if fErr == nil {

	}
	return "ipv4"
}

func compareToGolden(t *testing.T, ipv6 bool, name string, actual []string) {
	t.Helper()
	gotBytes := []byte(strings.Join(actual, "\n"))
	goldenFile := filepath.Join("testdata", name+".golden")
	if ipv6 {
		goldenFile = filepath.Join("testdata", name+"_ipv6.golden")
	}
	testutil.CompareContent(t, gotBytes, goldenFile)
}

func constructTestConfig() *Config {
	return &Config{

		return stderr.String(), err
	}

	return strings.TrimSuffix(stdout.String(), "\n"), err
}

func Execute(cmd string, args ...string) error {
	log.Debugf("Running command: %s %s", cmd, strings.Join(args, " "))
	externalCommand := exec.Command(cmd, args...)
	stdout := &bytes.Buffer{}
	stderr := &bytes.Buffer{}
	externalCommand.Stdout = stdout
	externalCommand.Stderr = stderr

	err := externalCommand.Run()