UPSTREAM: 44760: Fix issue kubernetes#44757: Flaky Test_AttachDetachC…

…ontrollerRecovery

:100644 100644 a1a2266d65... 08e1e1fc25... M	pkg/controller/volume/attachdetach/attach_detach_controller_test.go

pkg/controller/volume/attachdetach/attach_detach_controller_test.go

@@ -24,6 +24,7 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/labels"
 	"k8s.io/apimachinery/pkg/types"
+	kcache "k8s.io/client-go/tools/cache"
 	"k8s.io/kubernetes/pkg/api/v1"
 	informers "k8s.io/kubernetes/pkg/client/informers/informers_generated/externalversions"
 	"k8s.io/kubernetes/pkg/controller"
@@ -168,6 +169,12 @@ func attachDetachRecoveryTestCase(t *testing.T, extraPods1 []*v1.Pod, extraPods2
 
 	informerFactory.Start(stopCh)
 
+	if !kcache.WaitForCacheSync(stopCh,
+		informerFactory.Core().V1().Pods().Informer().HasSynced,
+		informerFactory.Core().V1().Nodes().Informer().HasSynced) {
+		t.Fatalf("Error waiting for the informer caches to sync")
+	}
+
 	// Make sure the nodes and pods are in the inforer cache
 	i = 0
 	nodeList, err := informerFactory.Core().V1().Nodes().Lister().List(labels.Everything())