},
	}

	podIPs := GetPodIPsIfPresent(pod)
	assert.Equal(t, len(podIPs), 2)
}

func TestGetPodIPsIfNoPodIPPresent(t *testing.T) {
	pod := &corev1.Pod{
		ObjectMeta: metav1.ObjectMeta{
			Name:      "test",
			Namespace: "test",
		},
		Spec: corev1.PodSpec{
			NodeName: "derp",
		},
		Status: corev1.PodStatus{},
	}

	podIPs := GetPodIPsIfPresent(pod)
	assert.Equal(t, len(podIPs), 0)
}

	// We are expecting at most 1 calls to the mock, wait for them
	wg, waitForMockCalls := NewWaitForNCalls(t, 1)
	fs := &fakeServer{testWG: wg}

	fs.On("AddPodToMesh",
		ctx,
		mock.IsType(pod),
		util.GetPodIPsIfPresent(pod),
		"",
	).Return(nil)

	server := getFakeDP(fs, client.Kube())

	handlers := setupHandlers(ctx, client, server, "istio-system")
	client.RunAndWait(ctx.Done())
	go handlers.Start()

//
// Note that very early in the pod's lifecycle (before all the node CNI plugin invocations finish)
// K8S may not have received the pod IPs yet, and may not report the pod as having any.
func GetPodIPsIfPresent(pod *corev1.Pod) []netip.Addr {
	var podIPs []netip.Addr
	if len(pod.Status.PodIPs) != 0 {
		for _, pip := range pod.Status.PodIPs {
			ip := netip.MustParseAddr(pip.IP)
			podIPs = append(podIPs, ip)
		}

	// We are expecting at most 1 calls to the mock, wait for them
	wg, waitForMockCalls := NewWaitForNCalls(t, 1)
	fs := &fakeServer{testWG: wg}

	fs.On("AddPodToMesh",
		ctx,
		mock.IsType(pod),
		util.GetPodIPsIfPresent(pod),
		valid.Netns,
	).Return(nil)

	dpServer := getFakeDP(fs, client.Kube())

	handlers := setupHandlers(ctx, client, dpServer, "istio-system")

func (s *meshDataplane) syncHostIPSets(ambientPods []*corev1.Pod) error {
	var addedIPSnapshot []netip.Addr

	for _, pod := range ambientPods {
		podIPs := util.GetPodIPsIfPresent(pod)
		if len(podIPs) == 0 {
			log.Warnf("pod %s does not appear to have any assigned IPs, not syncing with ipset", pod.Name)
		} else {
			addedIps, err := s.addPodToHostNSIpset(pod, podIPs)
			if err != nil {

			//
			// If we get to this point and have a pod that really and truly has no IP in either of those,
			// it's not routable at this point and something is wrong/we should discard this event.
			podIPs := util.GetPodIPsIfPresent(pod)
			if len(podIPs) == 0 {
				log.Debugf("pod update event skipped: no IP assigned yet")
				return nil
			}

			log.Debugf("pod is now enrolled, adding to mesh")