})
	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) {

var ErrNotImplemented = errors.New("not implemented")

// Program defines a method which programs iptables based on the parameters
// provided in Redirect.
func (ipt *iptables) Program(podName, netns string, rdrct *Redirect) error {
	return ErrNotImplemented

    cniConfFileName: ""
    # This directory must exist on the node, if it does not, consult your container runtime
    # documentation for the appropriate path.
    cniNetnsDir: # Defaults to '/var/run/netns', in minikube/docker/others can be '/var/run/docker/netns'.


    excludeNamespaces:
      - kube-system

    # Allows user to set custom affinity for the DaemonSet
    affinity: {}

    # Custom annotations on pod level, if you need them

}

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")

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

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

    - on pod add, determines whether pod should have netns setup to redirect to Istio proxy. See [cmdAdd](#cmdadd-workflow) for detailed logic.
        - it connects to K8S using the kubeconfig and JWT token copied from install-cni to get Pod and Namespace. Since this is a short-running command, each invocation creates a new connection.
        - If so, calls `istio-iptables` with params to setup pod netns
        - If ambient, sets up the ambient logic.

// 2. Matches where rules are actually defined in the netns we're operating in
// (legacy or nft, with a preference for the latter if both present)
//
// This is designed to handle situations where, for instance, the host has nft-defined rules, and our default container
// binary is `legacy`, or vice-versa - we must match the binaries we have in our $PATH to what rules are actually defined
// in our current netns context.
//

}

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) 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.
	//