},
	}

	return fakePod, fakeNS
}

func (mrdir *mockInterceptRuleMgr) Program(podName, netns string, redirect *Redirect) error {
	mrdir.lastRedirect = append(mrdir.lastRedirect, redirect)
	return nil
}

// returns the test server URL and a dispose func for the test server
func setupCNIEventClientWithMockServer(serverErr bool) (string, func() bool) {
	cniAddServerCalled := false

	"strings"
	"testing"

	testutil "istio.io/istio/pilot/test/util"
	dep "istio.io/istio/tools/istio-iptables/pkg/dependencies"
)

func TestIptables(t *testing.T) {
	cases := []struct {
		name   string
		config func(cfg *Config)
	}{
		{
			"default",
			func(cfg *Config) {
				cfg.RedirectDNS = true
			},
		},
	}
	probeSNATipv4 := netip.MustParseAddr("169.254.7.127")

  }
}
`
)

func getEnv(key, fallback string) string {
	if value, ok := os.LookupEnv(key); ok {
		return value
	}
	return fallback
}

func setEnv(key, value string, t *testing.T) {
	t.Helper()
	err := os.Setenv(key, value)
	if err != nil {
		t.Fatalf("Couldn't set environment variable, err: %v", err)
	}
}

func mktemp(dir, prefix string, t *testing.T) string {
	t.Helper()

type MockedIpsetDeps struct {
	mock.Mock
}

func FakeNLDeps() *MockedIpsetDeps {
	return &MockedIpsetDeps{}
}

func (m *MockedIpsetDeps) ipsetIPHashCreate(name string, v6 bool) error {
	args := m.Called(name, v6)
	return args.Error(0)
}

func (m *MockedIpsetDeps) destroySet(name string) error {
	args := m.Called(name)
	return args.Error(0)
}

		listener: l,
		conns: &connMgr{
			connectionSet: map[*ZtunnelConnection]struct{}{},
		},
		pods: pods,
	}, nil
}

func (z *ztunnelServer) Close() error {
	return z.listener.Close()
}

func (z *ztunnelServer) Run(ctx context.Context) {
	context.AfterFunc(ctx, func() { _ = z.Close() })

	for {
		log.Debug("accepting conn")
		conn, err := z.accept()
		if err != nil {

		if toComplete == "" || strings.HasPrefix(pod.Name, toComplete) {
			podsName = append(podsName, pod.Name)
		}
	}

	return podsName, nil
}

func ValidPodsNameArgs(ctx cli.Context) func(_ *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
	return func(_ *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
		if len(args) != 0 {
			return nil, cobra.ShellCompDirectiveNoFileComp

	}

	return fmt.Errorf("failure running port forward process: %v", err)
}

func ClosePortForwarderOnInterrupt(fw kube.PortForwarder) {
	go func() {
		signals := make(chan os.Signal, 1)
		signal.Notify(signals, os.Interrupt)
		defer signal.Stop(signals)
		<-signals
		fw.Close()
	}()
}

func openBrowser(url string, writer io.Writer, browser bool) {
	var err error

)

// TODO move to multicluster package; requires exposing some private funcs/vars in this package
func ClustersCommand(ctx cli.Context) *cobra.Command {
	var opts clioptions.ControlPlaneOptions
	cmd := &cobra.Command{
		Use:   "remote-clusters",
		Short: "Lists the remote clusters each istiod instance is connected to.",
		RunE: func(cmd *cobra.Command, args []string) error {

	set := ipset.IPSet{V4Name: "foo-v4", Prefix: "foo", Deps: fakeIPSetDeps}
	netServer := newNetServer(ztunnelServer, podNsMap, iptablesConfigurator, NewPodNetnsProcFinder(fakeFs()), set)

	netServer.netnsRunner = func(fdable NetnsFd, toRun func() error) error {
		return toRun()
	}
	netServer.Start(ctx)
	return netTestFixture{
		netServer:            netServer,
		podNsMap:             podNsMap,
		ztunnelServer:        ztunnelServer,

package nodeagent

import "errors"

func inodeForFd(n NetnsFd) (uint64, error) {
	return 0, errors.New("not implemented")
}

func NetnsSet(n NetnsFd) error {
	return errors.New("not implemented")
}

func OpenNetns(nspath string) (NetnsCloser, error) {
	return nil, errors.New("not implemented")
}

// inspired by netns.Do() but with an existing fd.
func NetnsDo(fdable NetnsFd, toRun func() error) error {