if !ok {
			return nil, nil, fmt.Errorf("not a pod")
		}
		return labels.Set(pod.Labels), fields.Set{"spec.nodeName": pod.Spec.NodeName}, nil
	}
	const numEvents = 50
	store := cache.NewIndexer(storeElementKey, storeElementIndexers(nil))
	events := make(map[string]*watchCacheEvent)
	var rv uint64 = 1 // arbitrary number; rv till which the watch cache has progressed.

	for i := 0; i < numEvents; i++ {

// keeping structs (key, object, labels, fields).
type storeElement struct {
	Key    string
	Object runtime.Object
	Labels labels.Set
	Fields fields.Set
}

func storeElementKey(obj interface{}) (string, error) {
	elem, ok := obj.(*storeElement)
	if !ok {
		return "", fmt.Errorf("not a storeElement: %v", obj)
	}
	return elem.Key, nil
}

func TestResourceVersionAfterInitEvents(t *testing.T) {
	getAttrsFunc := func(obj runtime.Object) (labels.Set, fields.Set, error) {
		return nil, nil, nil
	}

	const numObjects = 10
	store := cache.NewIndexer(storeElementKey, storeElementIndexers(nil))

	for i := 0; i < numObjects; i++ {
		elem := makeTestStoreElement(makeTestPod(fmt.Sprintf("pod-%d", i), uint64(i)))
		store.Add(elem)
	}