func TestCreatePods(t *testing.T) {
ns := api.NamespaceDefault
body := runtime.EncodeOrDie(testapi.Default.Codec(), &api.Pod{ObjectMeta: api.ObjectMeta{Name: "empty_pod"}})
fakeHandler := utiltesting.FakeHandler{
StatusCode: 200,
ResponseBody: string(body),
}
testServer := httptest.NewServer(&fakeHandler)
defer testServer.Close()
clientset := clientset.NewForConfigOrDie(&restclient.Config{Host: testServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
podControl := RealPodControl{
KubeClient: clientset,
Recorder: &record.FakeRecorder{},
}
controllerSpec := newReplicationController(1)
// Make sure createReplica sends a POST to the apiserver with a pod from the controllers pod template
podControl.CreatePods(ns, controllerSpec.Spec.Template, controllerSpec)
expectedPod := api.Pod{
ObjectMeta: api.ObjectMeta{
Labels: controllerSpec.Spec.Template.Labels,
GenerateName: fmt.Sprintf("%s-", controllerSpec.Name),
},
Spec: controllerSpec.Spec.Template.Spec,
}
fakeHandler.ValidateRequest(t, testapi.Default.ResourcePath("pods", api.NamespaceDefault, ""), "POST", nil)
actualPod, err := runtime.Decode(testapi.Default.Codec(), []byte(fakeHandler.RequestBody))
if err != nil {
t.Errorf("Unexpected error: %#v", err)
}
if !api.Semantic.DeepDerivative(&expectedPod, actualPod) {
t.Logf("Body: %s", fakeHandler.RequestBody)
t.Errorf("Unexpected mismatch. Expected\n %#v,\n Got:\n %#v", &expectedPod, actualPod)
}
}
func objBody(codec runtime.Codec, obj runtime.Object) io.ReadCloser {
return ioutil.NopCloser(bytes.NewReader([]byte(runtime.EncodeOrDie(codec, obj))))
}
func TestWatchInterpretations(t *testing.T) {
codec := testapi.Default.Codec()
// Declare some pods to make the test cases compact.
podFoo := &api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo"}}
podBar := &api.Pod{ObjectMeta: api.ObjectMeta{Name: "bar"}}
podBaz := &api.Pod{ObjectMeta: api.ObjectMeta{Name: "baz"}}
firstLetterIsB := func(obj runtime.Object) bool {
return obj.(*api.Pod).Name[0] == 'b'
}
// All of these test cases will be run with the firstLetterIsB FilterFunc.
table := map[string]struct {
actions []string // Run this test item for every action here.
prevNodeValue string
nodeValue string
expectEmit bool
expectType watch.EventType
expectObject runtime.Object
}{
"create": {
actions: []string{"create", "get"},
nodeValue: runtime.EncodeOrDie(codec, podBar),
expectEmit: true,
expectType: watch.Added,
expectObject: podBar,
},
"create but filter blocks": {
actions: []string{"create", "get"},
nodeValue: runtime.EncodeOrDie(codec, podFoo),
expectEmit: false,
},
"delete": {
actions: []string{"delete"},
prevNodeValue: runtime.EncodeOrDie(codec, podBar),
expectEmit: true,
expectType: watch.Deleted,
expectObject: podBar,
},
"delete but filter blocks": {
actions: []string{"delete"},
nodeValue: runtime.EncodeOrDie(codec, podFoo),
expectEmit: false,
},
"modify appears to create 1": {
actions: []string{"set", "compareAndSwap"},
nodeValue: runtime.EncodeOrDie(codec, podBar),
expectEmit: true,
expectType: watch.Added,
expectObject: podBar,
},
"modify appears to create 2": {
actions: []string{"set", "compareAndSwap"},
prevNodeValue: runtime.EncodeOrDie(codec, podFoo),
nodeValue: runtime.EncodeOrDie(codec, podBar),
expectEmit: true,
expectType: watch.Added,
expectObject: podBar,
},
"modify appears to delete": {
actions: []string{"set", "compareAndSwap"},
prevNodeValue: runtime.EncodeOrDie(codec, podBar),
nodeValue: runtime.EncodeOrDie(codec, podFoo),
expectEmit: true,
expectType: watch.Deleted,
expectObject: podBar, // Should return last state that passed the filter!
},
"modify modifies": {
actions: []string{"set", "compareAndSwap"},
prevNodeValue: runtime.EncodeOrDie(codec, podBar),
nodeValue: runtime.EncodeOrDie(codec, podBaz),
expectEmit: true,
expectType: watch.Modified,
expectObject: podBaz,
},
"modify ignores": {
actions: []string{"set", "compareAndSwap"},
nodeValue: runtime.EncodeOrDie(codec, podFoo),
expectEmit: false,
},
}
for name, item := range table {
for _, action := range item.actions {
w := newEtcdWatcher(true, false, nil, firstLetterIsB, codec, versioner, nil, &fakeEtcdCache{})
emitCalled := false
w.emit = func(event watch.Event) {
emitCalled = true
if !item.expectEmit {
return
}
if e, a := item.expectType, event.Type; e != a {
t.Errorf("'%v - %v': expected %v, got %v", name, action, e, a)
}
if e, a := item.expectObject, event.Object; !api.Semantic.DeepDerivative(e, a) {
t.Errorf("'%v - %v': expected %v, got %v", name, action, e, a)
}
}
var n, pn *etcd.Node
if item.nodeValue != "" {
n = &etcd.Node{Value: item.nodeValue}
}
if item.prevNodeValue != "" {
pn = &etcd.Node{Value: item.prevNodeValue}
}
w.sendResult(&etcd.Response{
Action: action,
Node: n,
PrevNode: pn,
})
if e, a := item.expectEmit, emitCalled; e != a {
t.Errorf("'%v - %v': expected %v, got %v", name, action, e, a)
}
w.Stop()
}
}
}
