refactor e2e_node conformance test

Signed-off-by: liang chenye <liangchenye@huawei.com>

test/e2e_node/container_manager_test.go

@@ -21,6 +21,7 @@ import (
 	"time"
 
 	"k8s.io/kubernetes/pkg/api"
+	apierrs "k8s.io/kubernetes/pkg/api/errors"
 	"k8s.io/kubernetes/pkg/client/restclient"
 	client "k8s.io/kubernetes/pkg/client/unversioned"
 
@@ -38,7 +39,8 @@ var _ = Describe("Kubelet Container Manager", func() {
 		namespace := "oom-adj"
 		Context("when scheduling a busybox command that always fails in a pod", func() {
 			podName := "bin-false"
-			It("it should return succes", func() {
+
+			BeforeEach(func() {
 				pod := &api.Pod{
 					ObjectMeta: api.ObjectMeta{
 						Name:      podName,
@@ -58,6 +60,7 @@ var _ = Describe("Kubelet Container Manager", func() {
 						},
 					},
 				}
+
 				_, err := cl.Pods(namespace).Create(pod)
 				Expect(err).To(BeNil(), fmt.Sprintf("Error creating Pod %v", err))
 			})
@@ -86,6 +89,18 @@ var _ = Describe("Kubelet Container Manager", func() {
 				err := cl.Pods(namespace).Delete(podName, &api.DeleteOptions{})
 				Expect(err).To(BeNil(), fmt.Sprintf("Error deleting Pod %v", err))
 			})
+
+			AfterEach(func() {
+				cl.Pods(namespace).Delete(podName, &api.DeleteOptions{})
+				Eventually(func() bool {
+					_, err := cl.Pods(namespace).Get(podName)
+					if err != nil && apierrs.IsNotFound(err) {
+						return true
+					}
+					return false
+				}, time.Minute, time.Second*4).Should(BeTrue())
+			})
+
 		})
 	})