Fix typos in the test comments

Signed-off-by: mooncake <xcoder@tenxcloud.com>

test/e2e/framework/framework.go

@@ -356,7 +356,7 @@ func (f *Framework) AfterEach() {
 
 	// Print events if the test failed.
 	if CurrentGinkgoTestDescription().Failed && TestContext.DumpLogsOnFailure {
-		// Pass both unversioned client and and versioned clientset, till we have removed all uses of the unversioned client.
+		// Pass both unversioned client and versioned clientset, till we have removed all uses of the unversioned client.
 		if !f.SkipNamespaceCreation {
 			DumpAllNamespaceInfo(f.ClientSet, f.Namespace.Name)
 		}

test/e2e/framework/statefulset_utils.go

@@ -183,7 +183,7 @@ func (s *StatefulSetTester) DeleteStatefulPodAtIndex(index int, ss *apps.Statefu
 // VerifyStatefulPodFunc is a func that examines a StatefulSetPod.
 type VerifyStatefulPodFunc func(*v1.Pod)
 
-// VerifyPodAtIndex applies a visitor patter to the Pod at index in ss. verify is is applied to the Pod to "visit" it.
+// VerifyPodAtIndex applies a visitor patter to the Pod at index in ss. verify is applied to the Pod to "visit" it.
 func (s *StatefulSetTester) VerifyPodAtIndex(index int, ss *apps.StatefulSet, verify VerifyStatefulPodFunc) {
 	name := getStatefulSetPodNameAtIndex(index, ss)
 	pod, err := s.c.CoreV1().Pods(ss.Namespace).Get(name, metav1.GetOptions{})

test/e2e/framework/testfiles/testfiles.go

@@ -128,7 +128,7 @@ type RootFileSource struct {
 	Root string
 }
 
-// ReadTestFile looks looks for the file relative to the configured
+// ReadTestFile looks for the file relative to the configured
 // root directory.
 func (r RootFileSource) ReadTestFile(filePath string) ([]byte, error) {
 	fullPath := filepath.Join(r.Root, filePath)