Merge pull request #19440 from Random-Liu/add-update-count-in-density-test

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test/e2e/density.go

@@ -211,6 +211,8 @@ var _ = Describe("Density [Skipped]", func() {
 			}
 
 			// Create a listener for events.
+			// eLock is a lock protects the events
+			var eLock sync.Mutex
 			events := make([](*api.Event), 0)
 			_, controller := controllerframework.NewInformer(
 				&cache.ListWatch{
@@ -225,6 +227,8 @@ var _ = Describe("Density [Skipped]", func() {
 				0,
 				controllerframework.ResourceEventHandlerFuncs{
 					AddFunc: func(obj interface{}) {
+						eLock.Lock()
+						defer eLock.Unlock()
 						events = append(events, obj.(*api.Event))
 					},
 				},
@@ -232,6 +236,34 @@ var _ = Describe("Density [Skipped]", func() {
 			stop := make(chan struct{})
 			go controller.Run(stop)
 
+			// Create a listener for api updates
+			// uLock is a lock protects the updateCount
+			var uLock sync.Mutex
+			updateCount := 0
+			label := labels.SelectorFromSet(labels.Set(map[string]string{"name": RCName}))
+			_, updateController := controllerframework.NewInformer(
+				&cache.ListWatch{
+					ListFunc: func(options api.ListOptions) (runtime.Object, error) {
+						options.LabelSelector = label
+						return c.Pods(ns).List(options)
+					},
+					WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
+						options.LabelSelector = label
+						return c.Pods(ns).Watch(options)
+					},
+				},
+				&api.Pod{},
+				0,
+				controllerframework.ResourceEventHandlerFuncs{
+					UpdateFunc: func(_, _ interface{}) {
+						uLock.Lock()
+						defer uLock.Unlock()
+						updateCount++
+					},
+				},
+			)
+			go updateController.Run(stop)
+
 			// Start the replication controller.
 			startTime := time.Now()
 			expectNoError(RunRC(config))
@@ -241,10 +273,22 @@ var _ = Describe("Density [Skipped]", func() {
 			By("Waiting for all events to be recorded")
 			last := -1
 			current := len(events)
+			lastCount := -1
+			currentCount := updateCount
 			timeout := 10 * time.Minute
-			for start := time.Now(); last < current && time.Since(start) < timeout; time.Sleep(10 * time.Second) {
+			for start := time.Now(); (last < current || lastCount < currentCount) && time.Since(start) < timeout; time.Sleep(10 * time.Second) {
+				func() {
+					eLock.Lock()
+					defer eLock.Unlock()
 					last = current
 					current = len(events)
+				}()
+				func() {
+					uLock.Lock()
+					defer uLock.Unlock()
+					lastCount = currentCount
+					currentCount = updateCount
+				}()
 			}
 			close(stop)
 
@@ -252,6 +296,10 @@ var _ = Describe("Density [Skipped]", func() {
 				Logf("Warning: Not all events were recorded after waiting %.2f minutes", timeout.Minutes())
 			}
 			Logf("Found %d events", current)
+			if currentCount != lastCount {
+				Logf("Warning: Not all updates were recorded after waiting %.2f minutes", timeout.Minutes())
+			}
+			Logf("Found %d updates", currentCount)
 
 			// Tune the threshold for allowed failures.
 			badEvents := BadEvents(events)