})
	if err != nil {
		panic(err)
	}
	defer podUIDNetns.Close()

	if len(podUIDNetns) == 0 {
		t.Fatal("expected to find pod netns")
	}

	expectedUID := "863b91d4-4b68-4efa-917f-4b560e3e86aa"
	if podUIDNetns[expectedUID] == (WorkloadInfo{}) {
		t.Fatal("expected to find pod netns under pod uid")
	}
}

// copied and modified from spire

func TestGetContainerIDFromCGroups(t *testing.T) {

}

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 {
	return errors.New("not implemented")

}

func (f *fakeZtunnel) PodDeleted(ctx context.Context, uid string) error {
	f.deletedPods.Add(1)
	return f.delError
}

func (f *fakeZtunnel) PodAdded(ctx context.Context, pod *corev1.Pod, netns Netns) error {
	f.addedPods.Add(1)
	return f.addError
}

func (f *fakeZtunnel) Close() error {
	return nil
}

// fakeNs is a mock struct for testing
type fakeNs struct {
	closed *atomic.Bool

package nodeagent

import "testing"

func TestOpenNetns(t *testing.T) {
	ns, err := OpenNetns("/proc/self/ns/net")
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	// the inode for netns is proc dynamic, so it needs to be higher than
	// #define PROC_DYNAMIC_FIRST 0xF0000000U

	if ns.Inode() < 0xF0000000 {
		t.Fatalf("unexpected inode: %v", ns.Inode())
	}
	defer ns.Close()

}

func (f *fakeServer) AddPodToMesh(ctx context.Context, pod *corev1.Pod, podIPs []netip.Addr, netNs string) error {
	if f.testWG != nil {
		defer f.testWG.Done()
	}
	args := f.Called(ctx, pod, podIPs, netNs)
	return args.Error(0)
}

func (f *fakeServer) RemovePodFromMesh(ctx context.Context, pod *corev1.Pod, isDelete bool) error {
	if f.testWG != nil {

)

const (
	// to reliably identify kubelet healthprobes from inside the pod (versus standard kube-proxy traffic,
	// since the IP is normally the same), we SNAT identified host probes in the host netns to a fixed
	// APIPA/"link-local" IP.
	//
	// It doesn't matter what this IP is, so long as it's not routable and doesn't collide with anything else.
	//

	"testing"

	// Create a new mount namespace.
	"github.com/howardjohn/unshare-go/mountns"
	// Create a new network namespace. This will have the 'lo' interface ready but nothing else.
	_ "github.com/howardjohn/unshare-go/netns"
	"github.com/howardjohn/unshare-go/userns"

	"istio.io/istio/cni/pkg/scopes"
	"istio.io/istio/pkg/test/util/assert"
	dep "istio.io/istio/tools/istio-iptables/pkg/dependencies"
)

	defer cancel()

	pods := &fakePodCache{}

	pod, f := podAndNetns()
	f.Close()
	pods.pods = map[string]WorkloadInfo{
		string(pod.UID): {}, // simulate unknown netns
	}

	fixture := connectWithPods(ctx, pods)
	ztunClient := fixture.ztunClient
	// read initial pod add
	keep, fds := readRequest(t, ztunClient)
	assert.Equal(t, len(fds), 0)

		log.Debugf("Namespace %s added", ns.Name)
		s.enqueueNamespace(ns)

	case controllers.EventUpdate:
		newNs := event.New.(*corev1.Namespace)
		oldNs := event.Old.(*corev1.Namespace)

		if getModeLabel(oldNs.Labels) != getModeLabel(newNs.Labels) {
			log.Debugf("Namespace %s updated", newNs.Name)
			s.enqueueNamespace(newNs)
		}
	}
	return nil
}

func getModeLabel(m map[string]string) string {
	if m == nil {

			Name:      testNSName,
			Namespace: "",
			Labels:    map[string]string{},
		},
	}

	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