Golang runtime.EncodeOrDie函數代碼示例

func TestResourceNames(t *testing.T) {
	pods, svc := testData()
	b := NewBuilder(testapi.Default.RESTMapper(), api.Scheme, fakeClientWith("", t, map[string]string{
		"/namespaces/test/pods/foo":     runtime.EncodeOrDie(testapi.Default.Codec(), &pods.Items[0]),
		"/namespaces/test/services/baz": runtime.EncodeOrDie(testapi.Default.Codec(), &svc.Items[0]),
	})).
		NamespaceParam("test")

	test := &testVisitor{}

	if b.Do().Err() == nil {
		t.Errorf("unexpected non-error")
	}

	b.ResourceNames("pods", "foo", "services/baz")

	err := b.Do().Visit(test.Handle)
	if err != nil || len(test.Infos) != 2 {
		t.Fatalf("unexpected response: %v %#v", err, test.Infos)
	}
	if !reflect.DeepEqual(&pods.Items[0], test.Objects()[0]) {
		t.Errorf("unexpected object: \n%#v, expected: \n%#v", test.Objects()[0], &pods.Items[0])
	}
	if !reflect.DeepEqual(&svc.Items[0], test.Objects()[1]) {
		t.Errorf("unexpected object: \n%#v, expected: \n%#v", test.Objects()[1], &svc.Items[0])
	}
}

func TestMultipleResourceByTheSameName(t *testing.T) {
	pods, svcs := testData()
	b := NewBuilder(testapi.Default.RESTMapper(), api.Scheme, fakeClientWith("", t, map[string]string{
		"/namespaces/test/pods/foo":     runtime.EncodeOrDie(testapi.Default.Codec(), &pods.Items[0]),
		"/namespaces/test/pods/baz":     runtime.EncodeOrDie(testapi.Default.Codec(), &pods.Items[1]),
		"/namespaces/test/services/foo": runtime.EncodeOrDie(testapi.Default.Codec(), &svcs.Items[0]),
		"/namespaces/test/services/baz": runtime.EncodeOrDie(testapi.Default.Codec(), &svcs.Items[0]),
	})).
		NamespaceParam("test")

	test := &testVisitor{}
	singular := false

	if b.Do().Err() == nil {
		t.Errorf("unexpected non-error")
	}

	b.ResourceTypeOrNameArgs(true, "pods,services", "foo", "baz")

	err := b.Do().IntoSingular(&singular).Visit(test.Handle)
	if err != nil || singular || len(test.Infos) != 4 {
		t.Fatalf("unexpected response: %v %t %#v", err, singular, test.Infos)
	}
	if !api.Semantic.DeepDerivative([]runtime.Object{&pods.Items[0], &pods.Items[1], &svcs.Items[0], &svcs.Items[0]}, test.Objects()) {
		t.Errorf("unexpected visited objects: %#v", test.Objects())
	}

	if _, err := b.Do().ResourceMapping(); err == nil {
		t.Errorf("unexpected non-error")
	}
}

func TestSelector(t *testing.T) {
	pods, svc := testData()
	labelKey := unversioned.LabelSelectorQueryParam(testapi.Default.Version())
	b := NewBuilder(testapi.Default.RESTMapper(), api.Scheme, fakeClientWith("", t, map[string]string{
		"/namespaces/test/pods?" + labelKey + "=a%3Db":     runtime.EncodeOrDie(testapi.Default.Codec(), pods),
		"/namespaces/test/services?" + labelKey + "=a%3Db": runtime.EncodeOrDie(testapi.Default.Codec(), svc),
	})).
		SelectorParam("a=b").
		NamespaceParam("test").
		Flatten()

	test := &testVisitor{}
	singular := false

	if b.Do().Err() == nil {
		t.Errorf("unexpected non-error")
	}

	b.ResourceTypeOrNameArgs(true, "pods,service")

	err := b.Do().IntoSingular(&singular).Visit(test.Handle)
	if err != nil || singular || len(test.Infos) != 3 {
		t.Fatalf("unexpected response: %v %t %#v", err, singular, test.Infos)
	}
	if !api.Semantic.DeepDerivative([]runtime.Object{&pods.Items[0], &pods.Items[1], &svc.Items[0]}, test.Objects()) {
		t.Errorf("unexpected visited objects: %#v", test.Objects())
	}

	if _, err := b.Do().ResourceMapping(); err == nil {
		t.Errorf("unexpected non-error")
	}
}

func TestListObjectWithDifferentVersions(t *testing.T) {
	pods, svc := testData()
	labelKey := unversioned.LabelSelectorQueryParam(testapi.Default.Version())
	obj, err := NewBuilder(testapi.Default.RESTMapper(), api.Scheme, fakeClientWith("", t, map[string]string{
		"/namespaces/test/pods?" + labelKey + "=a%3Db":     runtime.EncodeOrDie(testapi.Default.Codec(), pods),
		"/namespaces/test/services?" + labelKey + "=a%3Db": runtime.EncodeOrDie(testapi.Default.Codec(), svc),
	})).
		SelectorParam("a=b").
		NamespaceParam("test").
		ResourceTypeOrNameArgs(true, "pods,services").
		Flatten().
		Do().Object()

	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	list, ok := obj.(*api.List)
	if !ok {
		t.Fatalf("unexpected object: %#v", obj)
	}
	// resource version differs between type lists, so it's not possible to get a single version.
	if list.ResourceVersion != "" || len(list.Items) != 3 {
		t.Errorf("unexpected list: %#v", list)
	}
}

func TestLatest(t *testing.T) {
	r, _, _ := streamTestData()
	newPod := &api.Pod{
		ObjectMeta: api.ObjectMeta{Name: "foo", Namespace: "test", ResourceVersion: "13"},
	}
	newPod2 := &api.Pod{
		ObjectMeta: api.ObjectMeta{Name: "bar", Namespace: "test", ResourceVersion: "14"},
	}
	newSvc := &api.Service{
		ObjectMeta: api.ObjectMeta{Name: "baz", Namespace: "test", ResourceVersion: "15"},
	}

	b := NewBuilder(testapi.Default.RESTMapper(), api.Scheme, fakeClientWith("", t, map[string]string{
		"/namespaces/test/pods/foo":     runtime.EncodeOrDie(testapi.Default.Codec(), newPod),
		"/namespaces/test/pods/bar":     runtime.EncodeOrDie(testapi.Default.Codec(), newPod2),
		"/namespaces/test/services/baz": runtime.EncodeOrDie(testapi.Default.Codec(), newSvc),
	})).
		NamespaceParam("other").Stream(r, "STDIN").Flatten().Latest()

	test := &testVisitor{}
	singular := false

	err := b.Do().IntoSingular(&singular).Visit(test.Handle)
	if err != nil || singular || len(test.Infos) != 3 {
		t.Fatalf("unexpected response: %v %t %#v", err, singular, test.Infos)
	}
	if !api.Semantic.DeepDerivative([]runtime.Object{newPod, newPod2, newSvc}, test.Objects()) {
		t.Errorf("unexpected visited objects: %#v", test.Objects())
	}
}

func streamTestData() (io.Reader, *api.PodList, *api.ServiceList) {
	pods, svc := testData()
	r, w := io.Pipe()
	go func() {
		defer w.Close()
		w.Write([]byte(runtime.EncodeOrDie(testapi.Default.Codec(), pods)))
		w.Write([]byte(runtime.EncodeOrDie(testapi.Default.Codec(), svc)))
	}()
	return r, pods, svc
}

func TestStore(t *testing.T) {
	fakeClient, storage, backing := newStorage(t)
	if _, err := fakeClient.Set(key(), runtime.EncodeOrDie(testapi.Default.Codec(), validNewRangeAllocation()), 0); err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	if err := storage.Allocate(net.ParseIP("192.168.1.2")); err != nil {
		t.Fatal(err)
	}
	ok, err := backing.Allocate(1)
	if err != nil {
		t.Fatal(err)
	}
	if ok {
		t.Fatal("Expected allocation to fail")
	}
	if err := storage.Allocate(net.ParseIP("192.168.1.2")); err != ipallocator.ErrAllocated {
		t.Fatal(err)
	}

	obj := fakeClient.Data[key()]
	if obj.R == nil || obj.R.Node == nil {
		t.Fatalf("%s is empty: %#v", key(), obj)
	}
	t.Logf("data: %#v", obj.R.Node)
}

func TestUpdate(t *testing.T) {
	storage, fakeClient := newStorage(t)

	ctx := api.WithNamespace(api.NewContext(), "test")
	key := etcdtest.AddPrefix("/controllers/test/foo")
	if _, err := fakeClient.Set(key, runtime.EncodeOrDie(testapi.Default.Codec(), &validController), 0); err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	replicas := 12
	update := extensions.Scale{
		ObjectMeta: api.ObjectMeta{Name: "foo", Namespace: "test"},
		Spec: extensions.ScaleSpec{
			Replicas: replicas,
		},
	}

	if _, _, err := storage.Update(ctx, &update); err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	response, err := fakeClient.Get(key, false, false)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	var controller api.ReplicationController
	testapi.Extensions.Codec().DecodeInto([]byte(response.Node.Value), &controller)
	if controller.Spec.Replicas != replicas {
		t.Errorf("wrong replicas count expected: %d got: %d", replicas, controller.Spec.Replicas)
	}
}

func TestNamespaceOverride(t *testing.T) {
	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
		w.WriteHeader(http.StatusOK)
		w.Write([]byte(runtime.EncodeOrDie(testapi.Default.Codec(), &api.Pod{ObjectMeta: api.ObjectMeta{Namespace: "foo", Name: "test"}})))
	}))
	defer s.Close()

	b := NewBuilder(testapi.Default.RESTMapper(), api.Scheme, fakeClient()).
		FilenameParam(false, s.URL).
		NamespaceParam("test")

	test := &testVisitor{}

	err := b.Do().Visit(test.Handle)
	if err != nil || len(test.Infos) != 1 && test.Infos[0].Namespace != "foo" {
		t.Fatalf("unexpected response: %v %#v", err, test.Infos)
	}

	b = NewBuilder(testapi.Default.RESTMapper(), api.Scheme, fakeClient()).
		FilenameParam(true, s.URL).
		NamespaceParam("test")

	test = &testVisitor{}

	err = b.Do().Visit(test.Handle)
	if err == nil {
		t.Fatalf("expected namespace error. got: %#v", test.Infos)
	}
}

func TestStorageError(t *testing.T) {
	fakeClient := tools.NewFakeEtcdClient(t)
	prefixedKey := etcdtest.AddPrefix("pods")
	fakeClient.ExpectNotFoundGet(prefixedKey)
	cacher := newTestCacher(fakeClient)
	fakeClient.WaitForWatchCompletion()

	podFoo := makeTestPod("foo")

	// Set up Watch for object "podFoo".
	watcher, err := cacher.Watch(context.TODO(), "pods/ns/foo", 1, storage.Everything)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	fakeClient.WatchResponse <- &etcd.Response{
		Action: "create",
		Node: &etcd.Node{
			Value:         string(runtime.EncodeOrDie(testapi.Default.Codec(), podFoo)),
			CreatedIndex:  1,
			ModifiedIndex: 1,
		},
	}
	_ = <-watcher.ResultChan()

	// Injecting error is simulating error from etcd.
	// This is almost the same what would happen e.g. in case of
	// "error too old" when reconnecting to etcd watch.
	fakeClient.WatchInjectError <- fmt.Errorf("fake error")

	_, ok := <-watcher.ResultChan()
	if ok {
		t.Errorf("unexpected event")
	}
}

func TestNodeBuilder(t *testing.T) {
	node := &api.Node{
		ObjectMeta: api.ObjectMeta{Name: "node1", Namespace: "should-not-have", ResourceVersion: "10"},
		Spec:       api.NodeSpec{},
		Status: api.NodeStatus{
			Capacity: api.ResourceList{
				api.ResourceCPU:    resource.MustParse("1000m"),
				api.ResourceMemory: resource.MustParse("1Mi"),
			},
		},
	}
	r, w := io.Pipe()
	go func() {
		defer w.Close()
		w.Write([]byte(runtime.EncodeOrDie(testapi.Default.Codec(), node)))
	}()

	b := NewBuilder(testapi.Default.RESTMapper(), api.Scheme, fakeClient()).
		NamespaceParam("test").Stream(r, "STDIN")

	test := &testVisitor{}

	err := b.Do().Visit(test.Handle)
	if err != nil || len(test.Infos) != 1 {
		t.Fatalf("unexpected response: %v %#v", err, test.Infos)
	}
	info := test.Infos[0]
	if info.Name != "node1" || info.Namespace != "" || info.Object == nil {
		t.Errorf("unexpected info: %#v", info)
	}
}

func TestScaleUpdate(t *testing.T) {
	storage, fakeClient := newStorage(t)

	ctx := api.WithNamespace(api.NewContext(), namespace)
	key := etcdtest.AddPrefix("/deployments/" + namespace + "/" + name)
	if _, err := fakeClient.Set(key, runtime.EncodeOrDie(testapi.Extensions.Codec(), &validDeployment), 0); err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	replicas := 12
	update := extensions.Scale{
		ObjectMeta: api.ObjectMeta{Name: name, Namespace: namespace},
		Spec: extensions.ScaleSpec{
			Replicas: replicas,
		},
	}

	if _, _, err := storage.Scale.Update(ctx, &update); err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	response, err := fakeClient.Get(key, false, false)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	var deployment extensions.Deployment
	testapi.Extensions.Codec().DecodeInto([]byte(response.Node.Value), &deployment)
	if deployment.Spec.Replicas != replicas {
		t.Errorf("wrong replicas count expected: %d got: %d", replicas, deployment.Spec.Replicas)
	}
}

func TestListObject(t *testing.T) {
	pods, _ := testData()
	labelKey := unversioned.LabelSelectorQueryParam(testapi.Default.Version())
	b := NewBuilder(testapi.Default.RESTMapper(), api.Scheme, fakeClientWith("", t, map[string]string{
		"/namespaces/test/pods?" + labelKey + "=a%3Db": runtime.EncodeOrDie(testapi.Default.Codec(), pods),
	})).
		SelectorParam("a=b").
		NamespaceParam("test").
		ResourceTypeOrNameArgs(true, "pods").
		Flatten()

	obj, err := b.Do().Object()
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	list, ok := obj.(*api.List)
	if !ok {
		t.Fatalf("unexpected object: %#v", obj)
	}
	if list.ResourceVersion != pods.ResourceVersion || len(list.Items) != 2 {
		t.Errorf("unexpected list: %#v", list)
	}

	mapping, err := b.Do().ResourceMapping()
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if mapping.Resource != "pods" {
		t.Errorf("unexpected resource mapping: %#v", mapping)
	}
}

func TestEtcdDelete(t *testing.T) {
	podA := &api.Pod{
		ObjectMeta: api.ObjectMeta{Name: "foo", ResourceVersion: "1"},
		Spec:       api.PodSpec{NodeName: "machine"},
	}

	nodeWithPodA := tools.EtcdResponseWithError{
		R: &etcd.Response{
			Node: &etcd.Node{
				Value:         runtime.EncodeOrDie(testapi.Default.Codec(), podA),
				ModifiedIndex: 1,
				CreatedIndex:  1,
			},
		},
		E: nil,
	}

	emptyNode := tools.EtcdResponseWithError{
		R: &etcd.Response{},
		E: tools.EtcdErrorNotFound,
	}

	testContext := api.WithNamespace(api.NewContext(), "test")

	key := "foo"

	table := map[string]struct {
		existing tools.EtcdResponseWithError
		expect   tools.EtcdResponseWithError
		errOK    func(error) bool
	}{
		"normal": {
			existing: nodeWithPodA,
			expect:   emptyNode,
			errOK:    func(err error) bool { return err == nil },
		},
		"notExisting": {
			existing: emptyNode,
			expect:   emptyNode,
			errOK:    func(err error) bool { return errors.IsNotFound(err) },
		},
	}

	for name, item := range table {
		fakeClient, registry := NewTestGenericEtcdRegistry(t)
		path := etcdtest.AddPrefix("pods/foo")
		fakeClient.Data[path] = item.existing
		obj, err := registry.Delete(testContext, key, nil)
		if !item.errOK(err) {
			t.Errorf("%v: unexpected error: %v (%#v)", name, err, obj)
		}

		if item.expect.E != nil {
			item.expect.E.(*etcd.EtcdError).Index = fakeClient.ChangeIndex
		}
		if e, a := item.expect, fakeClient.Data[path]; !api.Semantic.DeepDerivative(e, a) {
			t.Errorf("%v:\n%s", name, util.ObjectDiff(e, a))
		}
	}
}

func (t *Tester) setObjectsForList(objects []runtime.Object) []runtime.Object {
	result := make([]runtime.Object, len(objects))
	key := etcdtest.AddPrefix(t.storage.KeyRootFunc(t.tester.TestContext()))

	if len(objects) > 0 {
		nodes := make([]*etcd.Node, len(objects))
		for i, obj := range objects {
			codec, _ := getCodec(obj)
			encoded := runtime.EncodeOrDie(codec, obj)
			decoded, _ := codec.Decode([]byte(encoded))
			nodes[i] = &etcd.Node{Value: encoded}
			result[i] = decoded
		}
		t.fakeClient.Data[key] = tools.EtcdResponseWithError{
			R: &etcd.Response{
				Node: &etcd.Node{
					Nodes: nodes,
				},
			},
			E: nil,
		}
	} else {
		t.fakeClient.Data[key] = tools.EtcdResponseWithError{
			R: &etcd.Response{},
			E: t.fakeClient.NewError(tools.EtcdErrorCodeNotFound),
		}
	}
	return result
}