Use correct namespace in unit tests that use fake clientset

Fake clientset no longer needs to be prepopulated with records: keeping
them in leads to the name conflict on creates. Also, since fake
clientset now respects namespaces, we need to correctly populate them.

pkg/controller/node/nodecontroller_test.go

@@ -1426,8 +1426,25 @@ func newNode(name string) *api.Node {
 }
 
 func newPod(name, host string) *api.Pod {
-	return &api.Pod{ObjectMeta: api.ObjectMeta{Name: name}, Spec: api.PodSpec{NodeName: host},
-		Status: api.PodStatus{Conditions: []api.PodCondition{{Type: api.PodReady, Status: api.ConditionTrue}}}}
+	pod := &api.Pod{
+		ObjectMeta: api.ObjectMeta{
+			Namespace: "default",
+			Name:      name,
+		},
+		Spec: api.PodSpec{
+			NodeName: host,
+		},
+		Status: api.PodStatus{
+			Conditions: []api.PodCondition{
+				{
+					Type:   api.PodReady,
+					Status: api.ConditionTrue,
+				},
+			},
+		},
+	}
+
+	return pod
 }
 
 func contains(node *api.Node, nodes []*api.Node) bool {