func TestWatch(t *testing.T) {
client := framework.NewEtcdClient()
helper := tools.NewEtcdHelper(client, testapi.Codec(), etcdtest.PathPrefix())
framework.WithEtcdKey(func(key string) {
key = etcdtest.AddPrefix(key)
resp, err := client.Set(key, runtime.EncodeOrDie(testapi.Codec(), &api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo"}}), 0)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
expectedVersion := resp.Node.ModifiedIndex
// watch should load the object at the current index
w, err := helper.Watch(key, 0, tools.Everything)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
event := <-w.ResultChan()
if event.Type != watch.Added || event.Object == nil {
t.Fatalf("expected first value to be set to ADDED, got %#v", event)
}
// version should match what we set
pod := event.Object.(*api.Pod)
if pod.ResourceVersion != strconv.FormatUint(expectedVersion, 10) {
t.Errorf("expected version %d, got %#v", expectedVersion, pod)
}
// should be no events in the stream
select {
case event, ok := <-w.ResultChan():
if !ok {
t.Fatalf("channel closed unexpectedly")
}
t.Fatalf("unexpected object in channel: %#v", event)
default:
}
// should return the previously deleted item in the watch, but with the latest index
resp, err = client.Delete(key, false)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
expectedVersion = resp.Node.ModifiedIndex
event = <-w.ResultChan()
if event.Type != watch.Deleted {
t.Errorf("expected deleted event %#v", event)
}
pod = event.Object.(*api.Pod)
if pod.ResourceVersion != strconv.FormatUint(expectedVersion, 10) {
t.Errorf("expected version %d, got %#v", expectedVersion, pod)
}
})
}
func TestExtractObj(t *testing.T) {
client := framework.NewEtcdClient()
helper := tools.EtcdHelper{Client: client, Codec: stringCodec{}}
framework.WithEtcdKey(func(key string) {
_, err := client.Set(key, "object", 0)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
s := fakeAPIObject("")
if err := helper.ExtractObj(key, &s, false); err != nil {
t.Fatalf("unexpected error: %v", err)
}
if s != "object" {
t.Errorf("unexpected response: %#v", s)
}
})
}
func TestSetObj(t *testing.T) {
client := framework.NewEtcdClient()
helper := tools.EtcdHelper{Client: client, Codec: stringCodec{}}
framework.WithEtcdKey(func(key string) {
fakeObject := fakeAPIObject("object")
if err := helper.SetObj(key, &fakeObject, nil, 0); err != nil {
t.Fatalf("unexpected error: %v", err)
}
resp, err := client.Get(key, false, false)
if err != nil || resp.Node == nil {
t.Fatalf("unexpected error: %v %v", err, resp)
}
if resp.Node.Value != "object" {
t.Errorf("unexpected response: %#v", resp.Node)
}
})
}