}
			generatedRules := getRules(generated)

			refreshGoldens(t, tt.golden, generatedRules)

			// Compare generated iptables rule with golden files.
			golden, err := os.ReadFile(tt.golden)
			if err != nil {
				log.Fatalf("Cannot read golden rule file: %v", err)
			}
			goldenRules := getRules(golden)

			if len(generatedRules) == 0 {
				t.Error("Got empty generated rules")
			}

	for _, c := range contexts {
		c.Compiler = build.Default.Compiler
	}
	build.Default.GOROOT = testenv.GOROOT(nil)

	os.Exit(m.Run())
}

var (
	updateGolden = flag.Bool("updategolden", false, "update golden files")
)

func TestGolden(t *testing.T) {
	if *flagCheck {
		// slow, not worth repeating in -check
		t.Skip("skipping with -check set")
	}

	testenv.MustHaveGoBuild(t)

		{
			name:              "preempted config",
			expectedFailure:   true,
			cniConfigFilename: "list.conflist",
			chainedCNIPlugin:  true,
			existingConfFiles: map[string]string{"bridge.conf": "bridge.conf", "list.conflist.golden": "list.conflist"},
		},
		{
			name:              "intentional preempted config invalid",
			expectedFailure:   true,
			cniConfigFilename: "invalid-arr.conflist",
			cniConfName:       "invalid-arr.conflist",

	op := []string{"stderr"}
	opt2 := *opt
	opt2.OutputPaths = op
	opt2.ErrorOutputPaths = op

	return log.Configure(&opt2)
}

func refreshGoldenFiles() bool {
	ev := os.Getenv("REFRESH_GOLDEN")
	return ev == "true" || ev == "1"
}

func kubeBuilderInstalled() bool {
	ev := os.Getenv("KUBEBUILDER")
	return ev == "true" || ev == "1"
}

// Confirm waits for a user to confirm with the supplied message.

	Args []string

	// Typically use one of the three
	ExpectedOutput string         // Expected constant output
	ExpectedRegexp *regexp.Regexp // Expected regexp output
	GoldenFilename string         // Expected output stored in golden file

	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)

	cmdController cmdType = "operator controller"
)

// Golden output files add a lot of noise to pull requests. Use a unique suffix so
// we can hide them by default. This should match one of the `linuguist-generated=true`
// lines in istio.io/istio/.gitattributes.
const (
	goldenFileSuffixHideChangesInReview = ".golden.yaml"
	goldenFileSuffixShowChangesInReview = ".golden-show-in-gh-pull-request.yaml"
)

var (

	"mesh.yaml":     true,
	"root-cert.pem": true,
	"cluster.env":   true,
}

const goldenSuffix = ".golden"

// TestWorkloadEntryConfigure enumerates test cases based on subdirectories of testdata/vmconfig.
// Each subdirectory contains two input files: workloadgroup.yaml and meshconfig.yaml that are used
// to generate golden outputs from the VM command.
func TestWorkloadEntryConfigure(t *testing.T) {

	cmd += " --manifests=" + string(snapshotCharts)

	gotYAML, err := runCommand(cmd)
	if err != nil {
		t.Fatal(err)
	}

	if refreshGoldenFiles() {
		t.Logf("Refreshing golden file for %s", goldenFilepath)
		if err := os.WriteFile(goldenFilepath, []byte(gotYAML), 0o644); err != nil {
			t.Error(err)
		}
	}

	wantYAML, err := readFile(goldenFilepath)
	if err != nil {
		t.Fatal(err)

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{
		RestoreFormat: false,
	}

		t.Fatal(err)
	}

	if err = file.AtomicWrite(cniConfigFilepath, cniConfig, os.FileMode(0o644)); err != nil {
		t.Fatal(err)
	}
}

// populateTempDirs populates temporary test directories with golden files and
// other related configuration.
func populateTempDirs(wd string, cniDirOrderedFiles []string, tempCNIConfDir, tempK8sSvcAcctDir string, t *testing.T) {
	t.Helper()
	t.Logf("Pre-populating working dirs")