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Fix resourcVersion=0 in cacher

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This commit is contained in:
Wojciech Tyczynski
2015-09-14 10:36:13 +02:00
parent c9570e34d0
commit 12eaf67acc
2 changed files with 59 additions and 12 deletions
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57
pkg/storage/cacher_test.go
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@@ -212,8 +212,8 @@ func TestWatch(t *testing.T) {
Action: "create",
Node: &etcd.Node{
Value: string(runtime.EncodeOrDie(testapi.Default.Codec(), podFoo)),
CreatedIndex: 1,
ModifiedIndex: 1,
CreatedIndex: 2,
ModifiedIndex: 2,
},
},
event: watch.Added,
@@ -225,8 +225,8 @@ func TestWatch(t *testing.T) {
Action: "create",
Node: &etcd.Node{
Value: string(runtime.EncodeOrDie(testapi.Default.Codec(), podBar)),
CreatedIndex: 2,
ModifiedIndex: 2,
CreatedIndex: 3,
ModifiedIndex: 3,
},
},
event: watch.Added,
@@ -238,13 +238,13 @@ func TestWatch(t *testing.T) {
Action: "set",
Node: &etcd.Node{
Value: string(runtime.EncodeOrDie(testapi.Default.Codec(), podFoo)),
CreatedIndex: 1,
ModifiedIndex: 3,
CreatedIndex: 2,
ModifiedIndex: 4,
},
PrevNode: &etcd.Node{
Value: string(runtime.EncodeOrDie(testapi.Default.Codec(), podFoo)),
CreatedIndex: 1,
ModifiedIndex: 1,
CreatedIndex: 2,
ModifiedIndex: 2,
},
},
event: watch.Modified,
@@ -253,7 +253,7 @@ func TestWatch(t *testing.T) {
}
// Set up Watch for object "podFoo".
watcher, err := cacher.Watch("pods/ns/foo", 1, storage.Everything)
watcher, err := cacher.Watch("pods/ns/foo", 2, storage.Everything)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
@@ -276,13 +276,13 @@ func TestWatch(t *testing.T) {
}
// Check whether we get too-old error.
_, err = cacher.Watch("pods/ns/foo", 0, storage.Everything)
_, err = cacher.Watch("pods/ns/foo", 1, storage.Everything)
if err == nil {
t.Errorf("expected 'error too old' error")
t.Errorf("exepcted 'error too old' error")
}
// Now test watch with initial state.
initialWatcher, err := cacher.Watch("pods/ns/foo", 1, storage.Everything)
initialWatcher, err := cacher.Watch("pods/ns/foo", 2, storage.Everything)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
@@ -302,6 +302,39 @@ func TestWatch(t *testing.T) {
}
}
// Now test watch from "now".
nowWatcher, err := cacher.Watch("pods/ns/foo", 0, storage.Everything)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
select {
case event := <-nowWatcher.ResultChan():
if obj := event.Object.(*api.Pod); event.Type != watch.Added || obj.ResourceVersion != "4" {
t.Errorf("unexpected event: %v", event)
}
case <-time.After(time.Millisecond * 100):
t.Errorf("timed out waiting for an event")
}
// Emit a new event and check if it is observed by the watcher.
fakeClient.WatchResponse <- &etcd.Response{
Action: "set",
Node: &etcd.Node{
Value: string(runtime.EncodeOrDie(testapi.Default.Codec(), podFoo)),
CreatedIndex: 2,
ModifiedIndex: 5,
},
PrevNode: &etcd.Node{
Value: string(runtime.EncodeOrDie(testapi.Default.Codec(), podFoo)),
CreatedIndex: 2,
ModifiedIndex: 4,
},
}
event := <-nowWatcher.ResultChan()
obj := event.Object.(*api.Pod)
if event.Type != watch.Modified || obj.ResourceVersion != "5" {
t.Errorf("unexpected event: %v", event)
}
close(fakeClient.WatchResponse)
}