key, err := cache.MetaNamespaceKeyFunc(new)
	if err == nil {
		c.queue.Add(key)
	}
}

func (c *MetaAllocator) deleteServiceCIDR(obj interface{}) {
	key, err := cache.DeletionHandlingMetaNamespaceKeyFunc(obj)
	if err == nil {
		c.queue.Add(key)
	}
}

func (c *MetaAllocator) run() {
	defer runtime.HandleCrash()
	defer c.queue.ShutDown()

	c.queue.AddRateLimited(key)

	return true
}

func (c *CRDFinalizer) enqueue(obj *apiextensionsv1.CustomResourceDefinition) {
	key, err := cache.DeletionHandlingMetaNamespaceKeyFunc(obj)
	if err != nil {
		utilruntime.HandleError(fmt.Errorf("couldn't get key for object %#v: %v", obj, err))
		return
	}

	c.queue.Add(key)
}

	c.queue.AddRateLimited(key)

	return true
}

func (c *NamingConditionController) enqueue(obj *apiextensionsv1.CustomResourceDefinition) {
	key, err := cache.DeletionHandlingMetaNamespaceKeyFunc(obj)
	if err != nil {
		utilruntime.HandleError(fmt.Errorf("couldn't get key for object %#v: %v", obj, err))
		return
	}

	c.queue.Add(key)
}

func (c *AssumeCache) update(oldObj interface{}, newObj interface{}) {
	c.add(newObj)
}

func (c *AssumeCache) delete(obj interface{}) {
	if obj == nil {
		return
	}

	name, err := cache.DeletionHandlingMetaNamespaceKeyFunc(obj)
	if err != nil {
		c.logger.Error(&ObjectNameError{err}, "Failed to delete")
		return
	}

	c.rwMutex.Lock()
	defer c.rwMutex.Unlock()

	objInfo := &objInfo{name: name}

	// calm down or it can starve other useful work) cases.
	c.queue.AddRateLimited(key)

	return true
}

func keyFn() string {
	// this format matches DeletionHandlingMetaNamespaceKeyFunc for our single key
	return configMapNamespace + "/" + configMapName
}

func encodeCertificates(certs ...*x509.Certificate) ([]byte, error) {
	b := bytes.Buffer{}
	for _, cert := range certs {

	api "k8s.io/kubernetes/pkg/apis/core"
	"k8s.io/utils/clock"
	testingclock "k8s.io/utils/clock/testing"

	jsonpatch "gopkg.in/evanphx/json-patch.v4"
)

var (
	keyFunc = cache.DeletionHandlingMetaNamespaceKeyFunc
)

// FakeNodeHandler is a fake implementation of NodesInterface and NodeInterface. It
// allows test cases to have fine-grained control over mock behaviors. We also need

func (expc *expandController) enqueuePVC(obj interface{}) {
	pvc, ok := obj.(*v1.PersistentVolumeClaim)
	if !ok {
		return
	}

	if pvc.Status.Phase == v1.ClaimBound {
		key, err := cache.DeletionHandlingMetaNamespaceKeyFunc(pvc)
		if err != nil {
			runtime.HandleError(fmt.Errorf("couldn't get key for object %#v: %v", pvc, err))
			return
		}
		expc.queue.Add(key)
	}
}

		}
	}
}

// TestControllerCache tests func storeObjectUpdate()
func TestControllerCache(t *testing.T) {
	// Cache under test
	c := cache.NewStore(cache.DeletionHandlingMetaNamespaceKeyFunc)

	// Store new PV
	storeVersion(t, "Step1", c, "1", true)
	// Store the same PV
	storeVersion(t, "Step2", c, "1", true)
	// Store newer PV
	storeVersion(t, "Step3", c, "2", true)

	key, err := cache.MetaNamespaceKeyFunc(obj)
	if err == nil {
		c.queue.Add(key)
	}
}

// deleteServiceCIDR
func (c *Controller) deleteServiceCIDR(obj interface{}) {
	key, err := cache.DeletionHandlingMetaNamespaceKeyFunc(obj)
	if err == nil {
		c.queue.Add(key)
	}
}

// addIPAddress may block a ServiceCIDR deletion
func (c *Controller) addIPAddress(obj interface{}) {

			}
			// IndexerInformer uses a delta nodeQueue, therefore for deletes we have to use this
			// key function.
			key, err := cache.DeletionHandlingMetaNamespaceKeyFunc(obj)
			if err == nil {
				ra.queue.Add(key)
			}
		},
	})

	return ra, nil
}

func (r *rangeAllocator) Run(ctx context.Context) {
	defer utilruntime.HandleCrash()