State: *state,
		}
	}
	sandboxes, err := m.runtimeService.ListPodSandbox(ctx, filter)
	if err != nil {
		klog.ErrorS(err, "Failed to list sandboxes for pod", "podUID", podUID)
		return nil, err
	}

	if len(sandboxes) == 0 {
		return nil, nil
	}

	// Sort with newest first.
	sandboxIDs := make([]string, len(sandboxes))
	sort.Sort(podSandboxByCreated(sandboxes))
	for i, s := range sandboxes {

// removeOldestNSandboxes removes the oldest inactive toRemove sandboxes and
// returns the resulting slice.
func (cgc *containerGC) removeOldestNSandboxes(ctx context.Context, sandboxes []sandboxGCInfo, toRemove int) {
	numToKeep := len(sandboxes) - toRemove
	if numToKeep > 0 {
		sort.Sort(sandboxByCreated(sandboxes))
	}
	// Remove from oldest to newest (last to first).
	for i := len(sandboxes) - 1; i >= numToKeep; i-- {
		if !sandboxes[i].active {

	// 3. should create all app containers because init container finished.
	// Stop init container instance 0.
	sandboxIDs, err := m.getSandboxIDByPodUID(ctx, pod.UID, nil)
	require.NoError(t, err)
	sandboxID := sandboxIDs[0]
	initID0, err := fakeRuntime.GetContainerID(sandboxID, initContainers[0].Name, 0)
	require.NoError(t, err)
	fakeRuntime.StopContainer(ctx, initID0, 0)

		description          string              // description of the test case
		sandboxes            []sandboxTemplate   // templates of sandboxes
		containers           []containerTemplate // templates of containers
		remain               []int               // template indexes of remaining sandboxes
		evictTerminatingPods bool
	}{
		{
			description: "notready sandboxes without containers for deleted pods should be garbage collected.",

			containers = append(containers, c)
		}
	}

	for _, p := range pods {
		if p == nil {
			continue
		}
		fillCidSet(p.Containers)
		// Update sandboxes as containers
		// TODO: keep track of sandboxes explicitly.
		fillCidSet(p.Sandboxes)
	}
	return containers
}

func computeEvents(oldPod, newPod *kubecontainer.Pod, cid *kubecontainer.ContainerID) []*PodLifecycleEvent {
	var pid types.UID

		{Pod: &kubecontainer.Pod{
			ID: "1234",
			Sandboxes: []*kubecontainer.Container{
				createTestContainer("c1", kubecontainer.ContainerStateExited),
				createTestContainer("c2", kubecontainer.ContainerStateRunning),
				createTestContainer("c3", kubecontainer.ContainerStateUnknown),
			},
		}},
		{Pod: &kubecontainer.Pod{
			ID: "4567",
			Sandboxes: []*kubecontainer.Container{

	ctx, cancel := defaultContext()
	defer cancel()

	sandboxes, err := runtime.impl.ListPodSandbox(ctx, runtime.runtimeService, nil)
	if err != nil {
		return nil, errors.Wrap(err, "failed to list pod sandboxes")
	}

	pods := []string{}
	for _, sandbox := range sandboxes {
		pods = append(pods, sandbox.GetId())
	}
	return pods, nil
}

	assert.NoError(t, err)
	assert.Contains(t, fakeRuntime.Called, "RunPodSandbox")
	sandboxes, err := fakeRuntime.ListPodSandbox(ctx, &runtimeapi.PodSandboxFilter{Id: id})
	assert.NoError(t, err)
	assert.Equal(t, len(sandboxes), 1)
	assert.Equal(t, sandboxes[0].Id, fmt.Sprintf("%s_%s_%s_1", pod.Name, pod.Namespace, pod.UID))
	assert.Equal(t, sandboxes[0].State, runtimeapi.PodSandboxState_SANDBOX_READY)
}

			State:               containerStatus.State,
		}
		runningPod.Containers = append(runningPod.Containers, container)
	}

	// Populate sandboxes in kubecontainer.Pod
	for _, sandbox := range podStatus.SandboxStatuses {
		runningPod.Sandboxes = append(runningPod.Sandboxes, &Container{
			ID:    ContainerID{Type: runtimeName, ID: sandbox.Id},
			State: SandboxToContainerState(sandbox.State),
		})
	}
	return runningPod

		}
	}

	// Needs to create a new sandbox when readySandboxCount > 1 or the ready sandbox is not the latest one.
	sandboxStatus := podStatus.SandboxStatuses[0]
	if readySandboxCount > 1 {
		klog.V(2).InfoS("Multiple sandboxes are ready for Pod. Need to reconcile them", "pod", klog.KObj(pod))
		return true, sandboxStatus.Metadata.Attempt + 1, sandboxStatus.Id
	}
	if sandboxStatus.State != runtimeapi.PodSandboxState_SANDBOX_READY {