bddef32193
In order to support graceful deletion, the resource object will need access to the TTL value in etcd. Also, in the future we may want to get the creation index (distinct from modifiedindex) and expose it to clients. Change EtcdResourceVersioner to be more type specific (objects vs lists) and provide a default implementation that relies on the internal API convention. Also, rename etcd_tools.go to etcd_helper.go and split a few things up.
682 lines
17 KiB
Go
682 lines
17 KiB
Go
/*
|
|
Copyright 2014 Google Inc. All rights reserved.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package etcd
|
|
|
|
import (
|
|
"fmt"
|
|
"path"
|
|
"testing"
|
|
|
|
"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
|
|
"github.com/GoogleCloudPlatform/kubernetes/pkg/api/errors"
|
|
"github.com/GoogleCloudPlatform/kubernetes/pkg/api/testapi"
|
|
"github.com/GoogleCloudPlatform/kubernetes/pkg/registry/generic"
|
|
"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
|
|
"github.com/GoogleCloudPlatform/kubernetes/pkg/tools"
|
|
"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
|
|
|
|
"github.com/coreos/go-etcd/etcd"
|
|
)
|
|
|
|
type testRESTStrategy struct {
|
|
runtime.ObjectTyper
|
|
api.NameGenerator
|
|
namespaceScoped bool
|
|
allowCreateOnUpdate bool
|
|
}
|
|
|
|
func (t *testRESTStrategy) NamespaceScoped() bool { return t.namespaceScoped }
|
|
func (t *testRESTStrategy) AllowCreateOnUpdate() bool { return t.allowCreateOnUpdate }
|
|
|
|
func (t *testRESTStrategy) ResetBeforeCreate(obj runtime.Object) {}
|
|
func (t *testRESTStrategy) Validate(obj runtime.Object) errors.ValidationErrorList {
|
|
return nil
|
|
}
|
|
func (t *testRESTStrategy) ValidateUpdate(obj, old runtime.Object) errors.ValidationErrorList {
|
|
return nil
|
|
}
|
|
|
|
func hasCreated(t *testing.T, pod *api.Pod) func(runtime.Object) bool {
|
|
return func(obj runtime.Object) bool {
|
|
actualPod := obj.(*api.Pod)
|
|
if !api.Semantic.DeepDerivative(pod.Status, actualPod.Status) {
|
|
t.Errorf("not a deep derivative %#v", actualPod)
|
|
return false
|
|
}
|
|
return api.HasObjectMetaSystemFieldValues(&actualPod.ObjectMeta)
|
|
}
|
|
}
|
|
|
|
func NewTestGenericEtcdRegistry(t *testing.T) (*tools.FakeEtcdClient, *Etcd) {
|
|
f := tools.NewFakeEtcdClient(t)
|
|
f.TestIndex = true
|
|
h := tools.NewEtcdHelper(f, testapi.Codec())
|
|
strategy := &testRESTStrategy{api.Scheme, api.SimpleNameGenerator, true, false}
|
|
return f, &Etcd{
|
|
NewFunc: func() runtime.Object { return &api.Pod{} },
|
|
NewListFunc: func() runtime.Object { return &api.PodList{} },
|
|
EndpointName: "pods",
|
|
CreateStrategy: strategy,
|
|
UpdateStrategy: strategy,
|
|
KeyRootFunc: func(ctx api.Context) string { return "/registry/pods" },
|
|
KeyFunc: func(ctx api.Context, id string) (string, error) {
|
|
return path.Join("/registry/pods", id), nil
|
|
},
|
|
ObjectNameFunc: func(obj runtime.Object) (string, error) { return obj.(*api.Pod).Name, nil },
|
|
Helper: h,
|
|
}
|
|
}
|
|
|
|
// SetMatcher is a matcher that matches any pod with id in the set.
|
|
// Makes testing simpler.
|
|
type SetMatcher struct {
|
|
util.StringSet
|
|
}
|
|
|
|
func (sm SetMatcher) Matches(obj runtime.Object) (bool, error) {
|
|
pod, ok := obj.(*api.Pod)
|
|
if !ok {
|
|
return false, fmt.Errorf("wrong object")
|
|
}
|
|
return sm.Has(pod.Name), nil
|
|
}
|
|
|
|
// EverythingMatcher matches everything
|
|
type EverythingMatcher struct{}
|
|
|
|
func (EverythingMatcher) Matches(obj runtime.Object) (bool, error) {
|
|
return true, nil
|
|
}
|
|
|
|
func TestEtcdList(t *testing.T) {
|
|
podA := &api.Pod{
|
|
ObjectMeta: api.ObjectMeta{Name: "foo"},
|
|
Status: api.PodStatus{Host: "machine"},
|
|
}
|
|
podB := &api.Pod{
|
|
ObjectMeta: api.ObjectMeta{Name: "bar"},
|
|
Status: api.PodStatus{Host: "machine"},
|
|
}
|
|
|
|
normalListResp := &etcd.Response{
|
|
Node: &etcd.Node{
|
|
Nodes: []*etcd.Node{
|
|
{Value: runtime.EncodeOrDie(testapi.Codec(), podA)},
|
|
{Value: runtime.EncodeOrDie(testapi.Codec(), podB)},
|
|
},
|
|
},
|
|
}
|
|
|
|
table := map[string]struct {
|
|
in tools.EtcdResponseWithError
|
|
m generic.Matcher
|
|
out runtime.Object
|
|
succeed bool
|
|
}{
|
|
"empty": {
|
|
in: tools.EtcdResponseWithError{
|
|
R: &etcd.Response{
|
|
Node: &etcd.Node{
|
|
Nodes: []*etcd.Node{},
|
|
},
|
|
},
|
|
E: nil,
|
|
},
|
|
m: EverythingMatcher{},
|
|
out: &api.PodList{Items: []api.Pod{}},
|
|
succeed: true,
|
|
},
|
|
"notFound": {
|
|
in: tools.EtcdResponseWithError{
|
|
R: &etcd.Response{},
|
|
E: tools.EtcdErrorNotFound,
|
|
},
|
|
m: EverythingMatcher{},
|
|
out: &api.PodList{Items: []api.Pod{}},
|
|
succeed: true,
|
|
},
|
|
"normal": {
|
|
in: tools.EtcdResponseWithError{
|
|
R: normalListResp,
|
|
E: nil,
|
|
},
|
|
m: EverythingMatcher{},
|
|
out: &api.PodList{Items: []api.Pod{*podA, *podB}},
|
|
succeed: true,
|
|
},
|
|
"normalFiltered": {
|
|
in: tools.EtcdResponseWithError{
|
|
R: normalListResp,
|
|
E: nil,
|
|
},
|
|
m: SetMatcher{util.NewStringSet("foo")},
|
|
out: &api.PodList{Items: []api.Pod{*podA}},
|
|
succeed: true,
|
|
},
|
|
}
|
|
|
|
for name, item := range table {
|
|
fakeClient, registry := NewTestGenericEtcdRegistry(t)
|
|
fakeClient.Data[registry.KeyRootFunc(api.NewContext())] = item.in
|
|
list, err := registry.ListPredicate(api.NewContext(), item.m)
|
|
if e, a := item.succeed, err == nil; e != a {
|
|
t.Errorf("%v: expected %v, got %v", name, e, a)
|
|
continue
|
|
}
|
|
|
|
if e, a := item.out, list; !api.Semantic.DeepDerivative(e, a) {
|
|
t.Errorf("%v: Expected %#v, got %#v", name, e, a)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestEtcdCreate(t *testing.T) {
|
|
podA := &api.Pod{
|
|
ObjectMeta: api.ObjectMeta{Name: "foo", Namespace: api.NamespaceDefault},
|
|
Status: api.PodStatus{Host: "machine"},
|
|
}
|
|
podB := &api.Pod{
|
|
ObjectMeta: api.ObjectMeta{Name: "foo", Namespace: api.NamespaceDefault},
|
|
Status: api.PodStatus{Host: "machine2"},
|
|
}
|
|
|
|
nodeWithPodA := tools.EtcdResponseWithError{
|
|
R: &etcd.Response{
|
|
Node: &etcd.Node{
|
|
Value: runtime.EncodeOrDie(testapi.Codec(), podA),
|
|
ModifiedIndex: 1,
|
|
CreatedIndex: 1,
|
|
},
|
|
},
|
|
E: nil,
|
|
}
|
|
|
|
emptyNode := tools.EtcdResponseWithError{
|
|
R: &etcd.Response{},
|
|
E: tools.EtcdErrorNotFound,
|
|
}
|
|
|
|
path := "/registry/pods/foo"
|
|
|
|
table := map[string]struct {
|
|
existing tools.EtcdResponseWithError
|
|
expect tools.EtcdResponseWithError
|
|
toCreate runtime.Object
|
|
objOK func(obj runtime.Object) bool
|
|
errOK func(error) bool
|
|
}{
|
|
"normal": {
|
|
existing: emptyNode,
|
|
toCreate: podA,
|
|
objOK: hasCreated(t, podA),
|
|
errOK: func(err error) bool { return err == nil },
|
|
},
|
|
"preExisting": {
|
|
existing: nodeWithPodA,
|
|
expect: nodeWithPodA,
|
|
toCreate: podB,
|
|
errOK: errors.IsAlreadyExists,
|
|
},
|
|
}
|
|
|
|
for name, item := range table {
|
|
fakeClient, registry := NewTestGenericEtcdRegistry(t)
|
|
fakeClient.Data[path] = item.existing
|
|
obj, err := registry.Create(api.NewDefaultContext(), item.toCreate)
|
|
if !item.errOK(err) {
|
|
t.Errorf("%v: unexpected error: %v", name, err)
|
|
}
|
|
|
|
actual := fakeClient.Data[path]
|
|
if item.objOK != nil {
|
|
if !item.objOK(obj) {
|
|
t.Errorf("%v: unexpected returned: %v", name, obj)
|
|
}
|
|
actualObj, err := api.Scheme.Decode([]byte(actual.R.Node.Value))
|
|
if err != nil {
|
|
t.Errorf("unable to decode stored value for %#v", actual)
|
|
continue
|
|
}
|
|
if !item.objOK(actualObj) {
|
|
t.Errorf("%v: unexpected response: %v", name, actual)
|
|
}
|
|
} else {
|
|
if e, a := item.expect, actual; !api.Semantic.DeepDerivative(e, a) {
|
|
t.Errorf("%v:\n%s", name, util.ObjectDiff(e, a))
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// DEPRECATED
|
|
func TestEtcdCreateWithName(t *testing.T) {
|
|
podA := &api.Pod{
|
|
ObjectMeta: api.ObjectMeta{Name: "foo", Namespace: api.NamespaceDefault},
|
|
Status: api.PodStatus{Host: "machine"},
|
|
}
|
|
podB := &api.Pod{
|
|
ObjectMeta: api.ObjectMeta{Name: "foo", Namespace: api.NamespaceDefault},
|
|
Status: api.PodStatus{Host: "machine2"},
|
|
}
|
|
|
|
nodeWithPodA := tools.EtcdResponseWithError{
|
|
R: &etcd.Response{
|
|
Node: &etcd.Node{
|
|
Value: runtime.EncodeOrDie(testapi.Codec(), podA),
|
|
ModifiedIndex: 1,
|
|
CreatedIndex: 1,
|
|
},
|
|
},
|
|
E: nil,
|
|
}
|
|
|
|
emptyNode := tools.EtcdResponseWithError{
|
|
R: &etcd.Response{},
|
|
E: tools.EtcdErrorNotFound,
|
|
}
|
|
|
|
path := "/registry/pods/foo"
|
|
key := "foo"
|
|
|
|
table := map[string]struct {
|
|
existing tools.EtcdResponseWithError
|
|
expect tools.EtcdResponseWithError
|
|
toCreate runtime.Object
|
|
objOK func(obj runtime.Object) bool
|
|
errOK func(error) bool
|
|
}{
|
|
"normal": {
|
|
existing: emptyNode,
|
|
toCreate: podA,
|
|
objOK: hasCreated(t, podA),
|
|
errOK: func(err error) bool { return err == nil },
|
|
},
|
|
"preExisting": {
|
|
existing: nodeWithPodA,
|
|
expect: nodeWithPodA,
|
|
toCreate: podB,
|
|
errOK: errors.IsAlreadyExists,
|
|
},
|
|
}
|
|
|
|
for name, item := range table {
|
|
fakeClient, registry := NewTestGenericEtcdRegistry(t)
|
|
fakeClient.Data[path] = item.existing
|
|
err := registry.CreateWithName(api.NewDefaultContext(), key, item.toCreate)
|
|
if !item.errOK(err) {
|
|
t.Errorf("%v: unexpected error: %v", name, err)
|
|
}
|
|
|
|
actual := fakeClient.Data[path]
|
|
if item.objOK != nil {
|
|
obj, err := api.Scheme.Decode([]byte(actual.R.Node.Value))
|
|
if err != nil {
|
|
t.Errorf("unable to decode stored value for %#v", actual)
|
|
continue
|
|
}
|
|
if !item.objOK(obj) {
|
|
t.Errorf("%v: unexpected response: %v", name, actual)
|
|
}
|
|
} else {
|
|
if e, a := item.expect, actual; !api.Semantic.DeepDerivative(e, a) {
|
|
t.Errorf("%v:\n%s", name, util.ObjectDiff(e, a))
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestEtcdUpdate(t *testing.T) {
|
|
podA := &api.Pod{
|
|
ObjectMeta: api.ObjectMeta{Name: "foo", Namespace: api.NamespaceDefault},
|
|
Status: api.PodStatus{Host: "machine"},
|
|
}
|
|
podB := &api.Pod{
|
|
ObjectMeta: api.ObjectMeta{Name: "foo", Namespace: api.NamespaceDefault, ResourceVersion: "1"},
|
|
Status: api.PodStatus{Host: "machine2"},
|
|
}
|
|
|
|
nodeWithPodA := tools.EtcdResponseWithError{
|
|
R: &etcd.Response{
|
|
Node: &etcd.Node{
|
|
Value: runtime.EncodeOrDie(testapi.Codec(), podA),
|
|
ModifiedIndex: 1,
|
|
CreatedIndex: 1,
|
|
},
|
|
},
|
|
E: nil,
|
|
}
|
|
|
|
newerNodeWithPodA := tools.EtcdResponseWithError{
|
|
R: &etcd.Response{
|
|
Node: &etcd.Node{
|
|
Value: runtime.EncodeOrDie(testapi.Codec(), podA),
|
|
ModifiedIndex: 2,
|
|
CreatedIndex: 1,
|
|
},
|
|
},
|
|
E: nil,
|
|
}
|
|
|
|
nodeWithPodB := tools.EtcdResponseWithError{
|
|
R: &etcd.Response{
|
|
Node: &etcd.Node{
|
|
Value: runtime.EncodeOrDie(testapi.Codec(), podB),
|
|
ModifiedIndex: 1,
|
|
CreatedIndex: 1,
|
|
},
|
|
},
|
|
E: nil,
|
|
}
|
|
|
|
emptyNode := tools.EtcdResponseWithError{
|
|
R: &etcd.Response{},
|
|
E: tools.EtcdErrorNotFound,
|
|
}
|
|
|
|
path := "/registry/pods/foo"
|
|
|
|
table := map[string]struct {
|
|
existing tools.EtcdResponseWithError
|
|
expect tools.EtcdResponseWithError
|
|
toUpdate runtime.Object
|
|
allowCreate bool
|
|
objOK func(obj runtime.Object) bool
|
|
errOK func(error) bool
|
|
}{
|
|
"normal": {
|
|
existing: nodeWithPodA,
|
|
expect: nodeWithPodB,
|
|
toUpdate: podB,
|
|
errOK: func(err error) bool { return err == nil },
|
|
},
|
|
"notExisting": {
|
|
existing: emptyNode,
|
|
expect: emptyNode,
|
|
toUpdate: podA,
|
|
errOK: func(err error) bool { return errors.IsNotFound(err) },
|
|
},
|
|
"createIfNotFound": {
|
|
existing: emptyNode,
|
|
toUpdate: podA,
|
|
allowCreate: true,
|
|
objOK: hasCreated(t, podA),
|
|
errOK: func(err error) bool { return err == nil },
|
|
},
|
|
"outOfDate": {
|
|
existing: newerNodeWithPodA,
|
|
expect: newerNodeWithPodA,
|
|
toUpdate: podB,
|
|
errOK: func(err error) bool { return errors.IsConflict(err) },
|
|
},
|
|
}
|
|
|
|
for name, item := range table {
|
|
fakeClient, registry := NewTestGenericEtcdRegistry(t)
|
|
registry.UpdateStrategy.(*testRESTStrategy).allowCreateOnUpdate = item.allowCreate
|
|
fakeClient.Data[path] = item.existing
|
|
obj, _, err := registry.Update(api.NewDefaultContext(), item.toUpdate)
|
|
if !item.errOK(err) {
|
|
t.Errorf("%v: unexpected error: %v", name, err)
|
|
}
|
|
|
|
actual := fakeClient.Data[path]
|
|
if item.objOK != nil {
|
|
if !item.objOK(obj) {
|
|
t.Errorf("%v: unexpected returned: %#v", name, obj)
|
|
}
|
|
actualObj, err := api.Scheme.Decode([]byte(actual.R.Node.Value))
|
|
if err != nil {
|
|
t.Errorf("unable to decode stored value for %#v", actual)
|
|
continue
|
|
}
|
|
if !item.objOK(actualObj) {
|
|
t.Errorf("%v: unexpected response: %#v", name, actual)
|
|
}
|
|
} else {
|
|
if e, a := item.expect, actual; !api.Semantic.DeepDerivative(e, a) {
|
|
t.Errorf("%v:\n%s", name, util.ObjectDiff(e, a))
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// DEPRECATED
|
|
func TestEtcdUpdateWithName(t *testing.T) {
|
|
podA := &api.Pod{
|
|
ObjectMeta: api.ObjectMeta{Name: "foo"},
|
|
Status: api.PodStatus{Host: "machine"},
|
|
}
|
|
podB := &api.Pod{
|
|
ObjectMeta: api.ObjectMeta{Name: "foo", ResourceVersion: "1"},
|
|
Status: api.PodStatus{Host: "machine2"},
|
|
}
|
|
|
|
nodeWithPodA := tools.EtcdResponseWithError{
|
|
R: &etcd.Response{
|
|
Node: &etcd.Node{
|
|
Value: runtime.EncodeOrDie(testapi.Codec(), podA),
|
|
ModifiedIndex: 1,
|
|
CreatedIndex: 1,
|
|
},
|
|
},
|
|
E: nil,
|
|
}
|
|
|
|
nodeWithPodB := tools.EtcdResponseWithError{
|
|
R: &etcd.Response{
|
|
Node: &etcd.Node{
|
|
Value: runtime.EncodeOrDie(testapi.Codec(), podB),
|
|
ModifiedIndex: 1,
|
|
CreatedIndex: 1,
|
|
},
|
|
},
|
|
E: nil,
|
|
}
|
|
|
|
emptyNode := tools.EtcdResponseWithError{
|
|
R: &etcd.Response{},
|
|
E: tools.EtcdErrorNotFound,
|
|
}
|
|
|
|
path := "/registry/pods/foo"
|
|
key := "foo"
|
|
|
|
table := map[string]struct {
|
|
existing tools.EtcdResponseWithError
|
|
expect tools.EtcdResponseWithError
|
|
toUpdate runtime.Object
|
|
errOK func(error) bool
|
|
}{
|
|
"normal": {
|
|
existing: nodeWithPodA,
|
|
expect: nodeWithPodB,
|
|
toUpdate: podB,
|
|
errOK: func(err error) bool { return err == nil },
|
|
},
|
|
"notExisting": {
|
|
existing: emptyNode,
|
|
expect: nodeWithPodA,
|
|
toUpdate: podA,
|
|
// TODO: Should updating a non-existing thing fail?
|
|
errOK: func(err error) bool { return err == nil },
|
|
},
|
|
}
|
|
|
|
for name, item := range table {
|
|
fakeClient, registry := NewTestGenericEtcdRegistry(t)
|
|
fakeClient.Data[path] = item.existing
|
|
err := registry.UpdateWithName(api.NewContext(), key, item.toUpdate)
|
|
if !item.errOK(err) {
|
|
t.Errorf("%v: unexpected error: %v", name, err)
|
|
}
|
|
|
|
if e, a := item.expect, fakeClient.Data[path]; !api.Semantic.DeepDerivative(e, a) {
|
|
t.Errorf("%v:\n%s", name, util.ObjectDiff(e, a))
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestEtcdGet(t *testing.T) {
|
|
podA := &api.Pod{
|
|
ObjectMeta: api.ObjectMeta{Name: "foo", ResourceVersion: "1"},
|
|
Status: api.PodStatus{Host: "machine"},
|
|
}
|
|
|
|
nodeWithPodA := tools.EtcdResponseWithError{
|
|
R: &etcd.Response{
|
|
Node: &etcd.Node{
|
|
Value: runtime.EncodeOrDie(testapi.Codec(), podA),
|
|
ModifiedIndex: 1,
|
|
CreatedIndex: 1,
|
|
},
|
|
},
|
|
E: nil,
|
|
}
|
|
|
|
emptyNode := tools.EtcdResponseWithError{
|
|
R: &etcd.Response{},
|
|
E: tools.EtcdErrorNotFound,
|
|
}
|
|
|
|
path := "/registry/pods/foo"
|
|
key := "foo"
|
|
|
|
table := map[string]struct {
|
|
existing tools.EtcdResponseWithError
|
|
expect runtime.Object
|
|
errOK func(error) bool
|
|
}{
|
|
"normal": {
|
|
existing: nodeWithPodA,
|
|
expect: podA,
|
|
errOK: func(err error) bool { return err == nil },
|
|
},
|
|
"notExisting": {
|
|
existing: emptyNode,
|
|
expect: nil,
|
|
errOK: errors.IsNotFound,
|
|
},
|
|
}
|
|
|
|
for name, item := range table {
|
|
fakeClient, registry := NewTestGenericEtcdRegistry(t)
|
|
fakeClient.Data[path] = item.existing
|
|
got, err := registry.Get(api.NewContext(), key)
|
|
if !item.errOK(err) {
|
|
t.Errorf("%v: unexpected error: %v", name, err)
|
|
}
|
|
|
|
if e, a := item.expect, got; !api.Semantic.DeepDerivative(e, a) {
|
|
t.Errorf("%v:\n%s", name, util.ObjectDiff(e, a))
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestEtcdDelete(t *testing.T) {
|
|
podA := &api.Pod{
|
|
ObjectMeta: api.ObjectMeta{Name: "foo", ResourceVersion: "1"},
|
|
Status: api.PodStatus{Host: "machine"},
|
|
}
|
|
|
|
nodeWithPodA := tools.EtcdResponseWithError{
|
|
R: &etcd.Response{
|
|
Node: &etcd.Node{
|
|
Value: runtime.EncodeOrDie(testapi.Codec(), podA),
|
|
ModifiedIndex: 1,
|
|
CreatedIndex: 1,
|
|
},
|
|
},
|
|
E: nil,
|
|
}
|
|
|
|
emptyNode := tools.EtcdResponseWithError{
|
|
R: &etcd.Response{},
|
|
E: tools.EtcdErrorNotFound,
|
|
}
|
|
|
|
path := "/registry/pods/foo"
|
|
key := "foo"
|
|
|
|
table := map[string]struct {
|
|
existing tools.EtcdResponseWithError
|
|
expect tools.EtcdResponseWithError
|
|
errOK func(error) bool
|
|
}{
|
|
"normal": {
|
|
existing: nodeWithPodA,
|
|
expect: emptyNode,
|
|
errOK: func(err error) bool { return err == nil },
|
|
},
|
|
"notExisting": {
|
|
existing: emptyNode,
|
|
expect: emptyNode,
|
|
errOK: func(err error) bool { return errors.IsNotFound(err) },
|
|
},
|
|
}
|
|
|
|
for name, item := range table {
|
|
fakeClient, registry := NewTestGenericEtcdRegistry(t)
|
|
fakeClient.Data[path] = item.existing
|
|
obj, err := registry.Delete(api.NewContext(), key)
|
|
if !item.errOK(err) {
|
|
t.Errorf("%v: unexpected error: %v (%#v)", name, err, obj)
|
|
}
|
|
|
|
if item.expect.E != nil {
|
|
item.expect.E.(*etcd.EtcdError).Index = fakeClient.ChangeIndex
|
|
}
|
|
if e, a := item.expect, fakeClient.Data[path]; !api.Semantic.DeepDerivative(e, a) {
|
|
t.Errorf("%v:\n%s", name, util.ObjectDiff(e, a))
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestEtcdWatch(t *testing.T) {
|
|
podA := &api.Pod{
|
|
ObjectMeta: api.ObjectMeta{Name: "foo", ResourceVersion: "1"},
|
|
Status: api.PodStatus{Host: "machine"},
|
|
}
|
|
respWithPodA := &etcd.Response{
|
|
Node: &etcd.Node{
|
|
Value: runtime.EncodeOrDie(testapi.Codec(), podA),
|
|
ModifiedIndex: 1,
|
|
CreatedIndex: 1,
|
|
},
|
|
Action: "create",
|
|
}
|
|
|
|
fakeClient, registry := NewTestGenericEtcdRegistry(t)
|
|
wi, err := registry.WatchPredicate(api.NewContext(), EverythingMatcher{}, "1")
|
|
if err != nil {
|
|
t.Fatalf("unexpected error: %v", err)
|
|
}
|
|
fakeClient.WaitForWatchCompletion()
|
|
|
|
go func() {
|
|
fakeClient.WatchResponse <- respWithPodA
|
|
}()
|
|
|
|
got, open := <-wi.ResultChan()
|
|
if !open {
|
|
t.Fatalf("unexpected channel close")
|
|
}
|
|
|
|
if e, a := podA, got.Object; !api.Semantic.DeepDerivative(e, a) {
|
|
t.Errorf("difference: %s", util.ObjectDiff(e, a))
|
|
}
|
|
}
|