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Fix dswp flake - from pod not showing in dswp

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Sometimes a pod may not appear in desired state
of world immediately, we poll before failing.

It only adds additional 30s to tests in worst case.
This commit is contained in:
Hemant Kumar 2017-03-14 14:31:37 -04:00
parent 5913c5a453
commit 1a6c36da53
1 changed files with 16 additions and 6 deletions
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22
test/integration/volume/attach_detach_test.go
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@ -33,6 +33,7 @@ import (
informers "k8s.io/kubernetes/pkg/client/informers/informers_generated/externalversions"
fakecloud "k8s.io/kubernetes/pkg/cloudprovider/providers/fake"
"k8s.io/kubernetes/pkg/controller/volume/attachdetach"
volumecache "k8s.io/kubernetes/pkg/controller/volume/attachdetach/cache"
"k8s.io/kubernetes/pkg/volume"
volumetest "k8s.io/kubernetes/pkg/volume/testing"
"k8s.io/kubernetes/pkg/volume/util/volumehelper"
@ -128,11 +129,7 @@ func TestPodDeletionWithDswp(t *testing.T) {
t.Fatalf("Pod not found in Pod Informer cache : %v", err)
}
podsToAdd := ctrl.GetDesiredStateOfWorld().GetPodToAdd()
if len(podsToAdd) == 0 {
t.Fatalf("Pod not added to desired state of world")
}
waitForPodsInDSWP(t, ctrl.GetDesiredStateOfWorld())
// let's stop pod events from getting triggered
close(podStopCh)
@ -144,7 +141,7 @@ func TestPodDeletionWithDswp(t *testing.T) {
waitToObservePods(t, podInformer, 0)
// the populator loop turns every 1 minute
time.Sleep(80 * time.Second)
podsToAdd = ctrl.GetDesiredStateOfWorld().GetPodToAdd()
podsToAdd := ctrl.GetDesiredStateOfWorld().GetPodToAdd()
if len(podsToAdd) != 0 {
t.Fatalf("All pods should have been removed")
}
@ -168,6 +165,19 @@ func waitToObservePods(t *testing.T, podInformer cache.SharedIndexInformer, podN
}
}
// wait for pods to be observed in desired state of world
func waitForPodsInDSWP(t *testing.T, dswp volumecache.DesiredStateOfWorld) {
if err := wait.Poll(time.Millisecond*500, wait.ForeverTestTimeout, func() (bool, error) {
pods := dswp.GetPodToAdd()
if len(pods) > 0 {
return true, nil
}
return false, nil
}); err != nil {
t.Fatalf("Pod not added to desired state of world : %v", err)
}
}
func createAdClients(ns *v1.Namespace, t *testing.T, server *httptest.Server, syncPeriod time.Duration) (*clientset.Clientset, attachdetach.AttachDetachController, informers.SharedInformerFactory) {
config := restclient.Config{
Host: server.URL,