// interval in queue so HPAs are processed every resync interval.
	a.queue.AddRateLimited(key)

	// Register HPA in the hpaSelectors map if it's not present yet. Attaching the Nothing selector
	// that does not select objects. The actual selector is going to be updated
	// when it's available during the autoscaler reconciliation.
	a.hpaSelectorsMux.Lock()
	defer a.hpaSelectorsMux.Unlock()

// Calls Run()
// Verifies there is one attach call and no detach calls.
// Deletes the node/volume/pod tuple from desiredStateOfWorld which succeeded in attaching
// Verifies there are two attach call and one detach call.
func Test_Run_OneVolumeAttachAndDetachMultipleNodesWithReadWriteOnce(t *testing.T) {
	// Arrange

				defer wg.Done()
				attachID, err := csiAttacher.Attach(spec, types.NodeName(nodename))
				if !fail && err != nil {
					t.Errorf("expecting no failure, but got err: %v", err)
				}
				if fail && err == nil {
					t.Errorf("expecting failure, but got no err")
				}
				if attachID != "" {
					t.Errorf("expecting empty attachID, got %v", attachID)
				}
			}(tc.spec, tc.nodeName, tc.shouldFail)

			}

			csiMounter := mounter.(*csiMountMgr)
			csiMounter.csiClient = setupClient(t, true)

			attachID := getAttachmentName(csiMounter.volumeID, string(csiMounter.driverName), string(plug.host.GetNodeName()))

			attachment := &storage.VolumeAttachment{
				ObjectMeta: meta.ObjectMeta{
					Name: attachID,
				},
				Spec: storage.VolumeAttachmentSpec{
					NodeName: "test-node",
					Attacher: CSIPluginName,

			// equal the input group name, but we assume it is canonical).
			dn = dnResult.NormDN
		}
		isGroup = true
	}

	// Backward compatibility in detaching non-normalized DNs.
	if !isAttach {
		var oldDN string
		if isGroup {
			oldDN = r.Group
		} else {
			oldDN = r.User
		}
		if oldDN != dn {