github/kubernetes
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add occasional polling to reflector

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This commit is contained in:
Daniel Smith
2015-02-26 16:58:00 -08:00
parent 156c505946
commit 554b1c847c
7 changed files with 110 additions and 47 deletions
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38
pkg/client/cache/reflector_test.go vendored
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@@ -20,6 +20,7 @@ import (
"fmt"
"strconv"
"testing"
"time"
"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
@@ -36,15 +37,27 @@ func (t *testLW) Watch(resourceVersion string) (watch.Interface, error) {
return t.WatchFunc(resourceVersion)
}
func TestReflector_resyncChan(t *testing.T) {
s := NewStore(MetaNamespaceKeyFunc)
g := NewReflector(&testLW{}, &api.Pod{}, s, time.Millisecond)
a, b := g.resyncChan(), time.After(100*time.Millisecond)
select {
case <-a:
t.Logf("got timeout as expected")
case <-b:
t.Errorf("resyncChan() is at least 99 milliseconds late??")
}
}
func TestReflector_watchHandlerError(t *testing.T) {
s := NewStore(MetaNamespaceKeyFunc)
g := NewReflector(&testLW{}, &api.Pod{}, s)
g := NewReflector(&testLW{}, &api.Pod{}, s, 0)
fw := watch.NewFake()
go func() {
fw.Stop()
}()
var resumeRV string
err := g.watchHandler(fw, &resumeRV)
err := g.watchHandler(fw, &resumeRV, neverExitWatch)
if err == nil {
t.Errorf("unexpected non-error")
}
@@ -52,7 +65,7 @@ func TestReflector_watchHandlerError(t *testing.T) {
func TestReflector_watchHandler(t *testing.T) {
s := NewStore(MetaNamespaceKeyFunc)
g := NewReflector(&testLW{}, &api.Pod{}, s)
g := NewReflector(&testLW{}, &api.Pod{}, s, 0)
fw := watch.NewFake()
s.Add(&api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo"}})
s.Add(&api.Pod{ObjectMeta: api.ObjectMeta{Name: "bar"}})
@@ -64,7 +77,7 @@ func TestReflector_watchHandler(t *testing.T) {
fw.Stop()
}()
var resumeRV string
err := g.watchHandler(fw, &resumeRV)
err := g.watchHandler(fw, &resumeRV, neverExitWatch)
if err != nil {
t.Errorf("unexpected error %v", err)
}
@@ -101,6 +114,19 @@ func TestReflector_watchHandler(t *testing.T) {
}
}
func TestReflector_watchHandlerTimeout(t *testing.T) {
s := NewStore(MetaNamespaceKeyFunc)
g := NewReflector(&testLW{}, &api.Pod{}, s, 0)
fw := watch.NewFake()
var resumeRV string
exit := make(chan time.Time, 1)
exit <- time.Now()
err := g.watchHandler(fw, &resumeRV, exit)
if err != errorResyncRequested {
t.Errorf("expected timeout error, but got %q", err)
}
}
func TestReflector_listAndWatch(t *testing.T) {
createdFakes := make(chan *watch.FakeWatcher)
@@ -125,7 +151,7 @@ func TestReflector_listAndWatch(t *testing.T) {
},
}
s := NewFIFO(MetaNamespaceKeyFunc)
r := NewReflector(lw, &api.Pod{}, s)
r := NewReflector(lw, &api.Pod{}, s, 0)
go r.listAndWatch()
ids := []string{"foo", "bar", "baz", "qux", "zoo"}
@@ -242,7 +268,7 @@ func TestReflector_listAndWatchWithErrors(t *testing.T) {
return item.list, item.listErr
},
}
r := NewReflector(lw, &api.Pod{}, s)
r := NewReflector(lw, &api.Pod{}, s, 0)
r.listAndWatch()
}
}