Пример #1
0
func TestStartingResourceVersion(t *testing.T) {
	server, etcdStorage := newEtcdTestStorage(t, testapi.Default.Codec(), etcdtest.PathPrefix())
	defer server.Terminate(t)
	cacher := newTestCacher(etcdStorage)
	defer cacher.Stop()

	// add 1 object
	podFoo := makeTestPod("foo")
	fooCreated := updatePod(t, etcdStorage, podFoo, nil)

	// Set up Watch starting at fooCreated.ResourceVersion + 10
	rv, err := storage.ParseWatchResourceVersion(fooCreated.ResourceVersion)
	if err != nil {
		t.Fatalf("Unexpected error: %v", err)
	}
	rv += 10
	startVersion := strconv.Itoa(int(rv))

	watcher, err := cacher.Watch(context.TODO(), "pods/ns/foo", startVersion, storage.Everything)
	if err != nil {
		t.Fatalf("Unexpected error: %v", err)
	}
	defer watcher.Stop()

	lastFoo := fooCreated
	for i := 0; i < 11; i++ {
		podFooForUpdate := makeTestPod("foo")
		podFooForUpdate.Labels = map[string]string{"foo": strconv.Itoa(i)}
		lastFoo = updatePod(t, etcdStorage, podFooForUpdate, lastFoo)
	}

	select {
	case e := <-watcher.ResultChan():
		pod := e.Object.(*api.Pod)
		podRV, err := storage.ParseWatchResourceVersion(pod.ResourceVersion)
		if err != nil {
			t.Fatalf("unexpected error: %v", err)
		}

		// event should have at least rv + 1, since we're starting the watch at rv
		if podRV <= rv {
			t.Errorf("expected event with resourceVersion of at least %d, got %d", rv+1, podRV)
		}
	case <-time.After(wait.ForeverTestTimeout):
		t.Errorf("timed out waiting for event")
	}
}
Пример #2
0
func (s *store) watch(ctx context.Context, key string, rv string, filter storage.FilterFunc, recursive bool) (watch.Interface, error) {
	rev, err := storage.ParseWatchResourceVersion(rv)
	if err != nil {
		return nil, err
	}
	key = keyWithPrefix(s.pathPrefix, key)
	return s.watcher.Watch(ctx, key, int64(rev), recursive, filter)
}