Update
)

func (a ACTION) String() string {
	switch a {
	case Add:
		return "Add"
	case Update:
		return "Update"
	}
	return "Unknown"
}

// Run starts the cluster's informers and waits for caches to sync. Once caches are synced, we mark the cluster synced.
// This should be called after each of the handlers have registered informers, and should be run in a goroutine.

	config.KV{
		Key:   ReplicationWorkersWait,
		Value: "0ms", // No wait by default between each replication attempts.
	},
	config.KV{
		Key:   KeyRotationWorkersWait,
		Value: "0ms", // No wait by default between each key rotation attempts.
	},
	config.KV{
		Key:   ExpirationWorkersWait,
		Value: "0ms", // No wait by default between each expiration attempts.
	},
}

      }
      barrier.await(); // release the threads!
      barrier.await(); // wait for them all to complete
      assertEquals(1, task.get().intValue());
      assertEquals(1, counter.get());
    }
    executor.shutdown();
  }

  @J2ktIncompatible
  @GwtIncompatible // blocking wait
  public void testToString() throws Exception {
    final CountDownLatch enterLatch = new CountDownLatch(1);

func drainMaps(t *testing.T) {
	t.Helper()

	wait := make(chan struct{}, 1)

	// Set up a one-time notification for the next time the cleanup runs.
	// Note: this will only run if there's no other active cleanup, so
	// we can be sure that the next time cleanup runs, it'll see the new
	// notification.
	cleanupMu.Lock()
	cleanupNotify = append(cleanupNotify, func() {
		select {
		case wait <- struct{}{}:
		default:
		}
	})

	`)))
)

// NewWaitControlPlanePhase is a hidden phase that runs after the control-plane and etcd phases
func NewWaitControlPlanePhase() workflow.Phase {
	phase := workflow.Phase{
		Name:  "wait-control-plane",
		Short: "Wait for the control plane to start",
		// TODO: unhide this phase once WaitForAllControlPlaneComponents goes GA:
		// https://github.com/kubernetes/kubeadm/issues/2907
		Hidden: true,

	for ns, y := range c.yamlText {
		ns, y := ns, y
		g.Go(func() error {
			return c.applyYAML(options.Cleanup, ns, y...)
		})
	}

	// Wait for all each apply to complete.
	if err := g.Wait(); err != nil {
		return err
	}

	if options.Wait {
		// TODO: wait for each namespace concurrently once WaitForConfig supports concurrency.
		for ns, y := range c.yamlText {

			}

			// There are some counters that we can't expect to see any non-zero values, like the
			// networking-related counters.
			if tc.skipCheck {
				return
			}

			// Wait until we get a non-zero perf counter data.
			if pollErr := wait.Poll(100*time.Millisecond, 5*perfCounterUpdatePeriod, func() (bool, error) {
				data, err := counter.getData()
				if err != nil {
					return false, err
				}

				if data != 0 {

				}
			}

			now := time.Now()
			if now.Sub(u.queued) < time.Second {
				// let recently failed networks to reconnect
				// making MRF wait for 1s before retrying,
				// i.e 4 reconnect attempts.
				time.Sleep(time.Second)
			}

			// wait on timer per heal
			wait := healSleeper.Timer(context.Background())

			scan := madmin.HealNormalScan
			if u.scanMode != 0 {
				scan = u.scanMode
			}

	// Update CRD and ensure that all watches are gracefully terminated.
	updateCRD()

	drained := make(chan struct{})
	go func() {
		defer close(drained)
		wg.Wait()
	}()

	select {
	case <-drained:
	case <-time.After(wait.ForeverTestTimeout):
		t.Fatal("timed out waiting for watchers to be terminated")
	}

	stopChan := make(chan struct{})

	// Set up loop to modify CRD in the background

func (t *Tracker[T]) Empty() {
	t.t.Helper()
	t.mu.Lock()
	defer t.mu.Unlock()
	if len(t.events) != 0 {
		t.t.Fatalf("unexpected events: %v", t.events)
	}
}

// WaitOrdered waits for an event to happen, in order
func (t *Tracker[T]) WaitOrdered(events ...T) {
	t.t.Helper()
	for i, event := range events {
		var err error
		retry.UntilSuccessOrFail(t.t, func() error {
			t.mu.Lock()