}
	errStatus := framework.NewStatus(framework.Unschedulable, ErrReasonDiskConflict)
	tests := []struct {
		pod                 *v1.Pod
		nodeInfo            *framework.NodeInfo
		name                string
		preFilterWantStatus *framework.Status
		wantStatus          *framework.Status
	}{
		{
			pod:                 &v1.Pod{},
			nodeInfo:            framework.NewNodeInfo(),
			name:                "nothing",

		// See: https://github.com/kubernetes/kubernetes/issues/110175
		{Event: framework.ClusterEvent{Resource: framework.Node, ActionType: framework.Add | framework.UpdateNodeLabel | framework.UpdateNodeTaint}},
		// We rely on CSI node to translate in-tree PV to CSI.
		{Event: framework.ClusterEvent{Resource: framework.CSINode, ActionType: framework.Add | framework.Update}},
		// When CSIStorageCapacity is enabled, pods may become schedulable

			nodesStatuses: framework.NodeToStatusMap{
				"node1": framework.NewStatus(framework.UnschedulableAndUnresolvable, interpodaffinity.ErrReasonAffinityRulesNotMatch),
				"node2": framework.NewStatus(framework.Unschedulable, interpodaffinity.ErrReasonAntiAffinityRulesNotMatch),
				"node3": framework.NewStatus(framework.Unschedulable, "Unschedulable"),
				"node4": framework.NewStatus(framework.Unschedulable, "Unschedulable"),
			},

		// A new Node may make a pod schedulable.
		{Event: framework.ClusterEvent{Resource: framework.Node, ActionType: framework.Add}},
		// Pods may fail to schedule because the PVC it uses has not yet been created.
		// This PVC is required to exist to check its access modes.
		{Event: framework.ClusterEvent{Resource: framework.PersistentVolumeClaim, ActionType: framework.Add | framework.Update}},
	}
}

		{Event: framework.ClusterEvent{Resource: framework.Node, ActionType: framework.Add | framework.UpdateNodeLabel | framework.UpdateNodeTaint}},
		// A new pvc may make a pod schedulable.
		// Due to fields are immutable except `spec.resources`, pvc update events are ignored.
		{Event: framework.ClusterEvent{Resource: framework.PersistentVolumeClaim, ActionType: framework.Add}},

		// We can remove UpdateNodeTaint when we remove the preCheck feature.
		// See: https://github.com/kubernetes/kubernetes/issues/110175
		{Event: framework.ClusterEvent{Resource: framework.Node, ActionType: framework.Add | framework.Delete | framework.UpdateNodeLabel | framework.UpdateNodeTaint}, QueueingHintFn: pl.isSchedulableAfterNodeChange},
	}
}

func involvedInTopologySpreading(incomingPod, podWithSpreading *v1.Pod) bool {

					},
				},
			},
			wantFilterStatus: framework.NewStatus(framework.UnschedulableAndUnresolvable, ErrReasonConflict),
		},
	}

	for _, test := range tests {
		t.Run(test.name, func(t *testing.T) {
			_, ctx := ktesting.NewTestContext(t)
			ctx, cancel := context.WithCancel(ctx)
			defer cancel()

			state := framework.NewCycleState()
			node := &framework.NodeInfo{}
			node.SetNode(test.Node)

func (pl *InterPodAffinity) PreFilter(ctx context.Context, cycleState *framework.CycleState, pod *v1.Pod) (*framework.PreFilterResult, *framework.Status) {
	var allNodes []*framework.NodeInfo
	var nodesWithRequiredAntiAffinityPods []*framework.NodeInfo
	var err error
	if allNodes, err = pl.sharedLister.NodeInfos().List(); err != nil {
		return nil, framework.AsStatus(fmt.Errorf("failed to list NodeInfos: %w", err))
	}

// Filters the nodes to find the ones that fit the pod based on the framework
// filter plugins and filter extenders.
func (sched *Scheduler) findNodesThatFitPod(ctx context.Context, fwk framework.Framework, state *framework.CycleState, pod *v1.Pod) ([]*framework.NodeInfo, framework.Diagnosis, error) {
	logger := klog.FromContext(ctx)
	diagnosis := framework.Diagnosis{
		NodeToStatusMap: make(framework.NodeToStatusMap),
	}

func (pl *InterPodAffinity) PreScore(
	pCtx context.Context,
	cycleState *framework.CycleState,
	pod *v1.Pod,
	nodes []*framework.NodeInfo,
) *framework.Status {
	if len(nodes) == 0 {
		// No nodes to score.
		return framework.NewStatus(framework.Skip)
	}

	if pl.sharedLister == nil {
		return framework.NewStatus(framework.Error, "empty shared lister in InterPodAffinity PreScore")
	}