mirror of https://github.com/k3s-io/k3s
724 lines
21 KiB
Go
724 lines
21 KiB
Go
/*
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Copyright 2014 Google Inc. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package etcd
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import (
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"strconv"
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"testing"
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"time"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api/errors"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api/latest"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/fields"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/labels"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/registry/endpoint"
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endpointetcd "github.com/GoogleCloudPlatform/kubernetes/pkg/registry/endpoint/etcd"
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etcdgeneric "github.com/GoogleCloudPlatform/kubernetes/pkg/registry/generic/etcd"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/registry/pod"
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podetcd "github.com/GoogleCloudPlatform/kubernetes/pkg/registry/pod/etcd"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/tools"
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"github.com/coreos/go-etcd/etcd"
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)
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func NewTestEtcdRegistry(client tools.EtcdClient) *Registry {
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registry := NewRegistry(tools.NewEtcdHelper(client, latest.Codec), nil, nil)
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return registry
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}
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func NewTestEtcdRegistryWithPods(client tools.EtcdClient) *Registry {
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helper := tools.NewEtcdHelper(client, latest.Codec)
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podStorage, _, _ := podetcd.NewStorage(helper)
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endpointStorage := endpointetcd.NewStorage(helper)
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registry := NewRegistry(helper, pod.NewRegistry(podStorage), endpoint.NewRegistry(endpointStorage))
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return registry
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}
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func TestEtcdListControllersNotFound(t *testing.T) {
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fakeClient := tools.NewFakeEtcdClient(t)
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ctx := api.NewDefaultContext()
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key := makeControllerListKey(ctx)
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fakeClient.Data[key] = tools.EtcdResponseWithError{
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R: &etcd.Response{},
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E: tools.EtcdErrorNotFound,
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}
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registry := NewTestEtcdRegistry(fakeClient)
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controllers, err := registry.ListControllers(ctx)
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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if len(controllers.Items) != 0 {
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t.Errorf("Unexpected controller list: %#v", controllers)
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}
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}
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func TestEtcdListServicesNotFound(t *testing.T) {
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fakeClient := tools.NewFakeEtcdClient(t)
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ctx := api.NewDefaultContext()
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key := makeServiceListKey(ctx)
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fakeClient.Data[key] = tools.EtcdResponseWithError{
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R: &etcd.Response{},
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E: tools.EtcdErrorNotFound,
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}
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registry := NewTestEtcdRegistry(fakeClient)
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services, err := registry.ListServices(ctx)
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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if len(services.Items) != 0 {
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t.Errorf("Unexpected controller list: %#v", services)
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}
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}
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func TestEtcdListControllers(t *testing.T) {
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fakeClient := tools.NewFakeEtcdClient(t)
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ctx := api.NewDefaultContext()
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key := makeControllerListKey(ctx)
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fakeClient.Data[key] = tools.EtcdResponseWithError{
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R: &etcd.Response{
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Node: &etcd.Node{
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Nodes: []*etcd.Node{
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{
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Value: runtime.EncodeOrDie(latest.Codec, &api.ReplicationController{ObjectMeta: api.ObjectMeta{Name: "foo"}}),
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},
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{
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Value: runtime.EncodeOrDie(latest.Codec, &api.ReplicationController{ObjectMeta: api.ObjectMeta{Name: "bar"}}),
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},
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},
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},
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},
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E: nil,
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}
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registry := NewTestEtcdRegistry(fakeClient)
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controllers, err := registry.ListControllers(ctx)
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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if len(controllers.Items) != 2 || controllers.Items[0].Name != "foo" || controllers.Items[1].Name != "bar" {
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t.Errorf("Unexpected controller list: %#v", controllers)
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}
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}
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// TestEtcdGetControllerDifferentNamespace ensures same-name controllers in different namespaces do not clash
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func TestEtcdGetControllerDifferentNamespace(t *testing.T) {
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fakeClient := tools.NewFakeEtcdClient(t)
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ctx1 := api.NewDefaultContext()
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ctx2 := api.WithNamespace(api.NewContext(), "other")
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key1, _ := makeControllerKey(ctx1, "foo")
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key2, _ := makeControllerKey(ctx2, "foo")
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fakeClient.Set(key1, runtime.EncodeOrDie(latest.Codec, &api.ReplicationController{ObjectMeta: api.ObjectMeta{Namespace: "default", Name: "foo"}}), 0)
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fakeClient.Set(key2, runtime.EncodeOrDie(latest.Codec, &api.ReplicationController{ObjectMeta: api.ObjectMeta{Namespace: "other", Name: "foo"}}), 0)
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registry := NewTestEtcdRegistry(fakeClient)
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ctrl1, err := registry.GetController(ctx1, "foo")
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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if ctrl1.Name != "foo" {
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t.Errorf("Unexpected controller: %#v", ctrl1)
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}
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if ctrl1.Namespace != "default" {
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t.Errorf("Unexpected controller: %#v", ctrl1)
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}
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ctrl2, err := registry.GetController(ctx2, "foo")
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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if ctrl2.Name != "foo" {
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t.Errorf("Unexpected controller: %#v", ctrl2)
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}
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if ctrl2.Namespace != "other" {
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t.Errorf("Unexpected controller: %#v", ctrl2)
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}
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}
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func TestEtcdGetController(t *testing.T) {
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ctx := api.NewDefaultContext()
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fakeClient := tools.NewFakeEtcdClient(t)
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key, _ := makeControllerKey(ctx, "foo")
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fakeClient.Set(key, runtime.EncodeOrDie(latest.Codec, &api.ReplicationController{ObjectMeta: api.ObjectMeta{Name: "foo"}}), 0)
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registry := NewTestEtcdRegistry(fakeClient)
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ctrl, err := registry.GetController(ctx, "foo")
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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if ctrl.Name != "foo" {
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t.Errorf("Unexpected controller: %#v", ctrl)
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}
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}
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func TestEtcdGetControllerNotFound(t *testing.T) {
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ctx := api.NewDefaultContext()
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fakeClient := tools.NewFakeEtcdClient(t)
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key, _ := makeControllerKey(ctx, "foo")
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fakeClient.Data[key] = tools.EtcdResponseWithError{
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R: &etcd.Response{
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Node: nil,
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},
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E: tools.EtcdErrorNotFound,
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}
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registry := NewTestEtcdRegistry(fakeClient)
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ctrl, err := registry.GetController(ctx, "foo")
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if ctrl != nil {
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t.Errorf("Unexpected non-nil controller: %#v", ctrl)
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}
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if !errors.IsNotFound(err) {
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t.Errorf("Unexpected error returned: %#v", err)
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}
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}
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func TestEtcdDeleteController(t *testing.T) {
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ctx := api.NewDefaultContext()
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fakeClient := tools.NewFakeEtcdClient(t)
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registry := NewTestEtcdRegistry(fakeClient)
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key, _ := makeControllerKey(ctx, "foo")
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fakeClient.Set(key, runtime.EncodeOrDie(latest.Codec, &api.ReplicationController{ObjectMeta: api.ObjectMeta{Name: "foo"}}), 0)
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err := registry.DeleteController(ctx, "foo")
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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if len(fakeClient.DeletedKeys) != 1 {
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t.Errorf("Expected 1 delete, found %#v", fakeClient.DeletedKeys)
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}
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if fakeClient.DeletedKeys[0] != key {
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t.Errorf("Unexpected key: %s, expected %s", fakeClient.DeletedKeys[0], key)
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}
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}
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func TestEtcdCreateController(t *testing.T) {
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ctx := api.NewDefaultContext()
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fakeClient := tools.NewFakeEtcdClient(t)
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registry := NewTestEtcdRegistry(fakeClient)
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key, _ := makeControllerKey(ctx, "foo")
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_, err := registry.CreateController(ctx, &api.ReplicationController{
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ObjectMeta: api.ObjectMeta{
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Name: "foo",
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},
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})
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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resp, err := fakeClient.Get(key, false, false)
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if err != nil {
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t.Fatalf("Unexpected error %v", err)
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}
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var ctrl api.ReplicationController
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err = latest.Codec.DecodeInto([]byte(resp.Node.Value), &ctrl)
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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if ctrl.Name != "foo" {
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t.Errorf("Unexpected pod: %#v %s", ctrl, resp.Node.Value)
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}
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}
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func TestEtcdCreateControllerAlreadyExisting(t *testing.T) {
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ctx := api.NewDefaultContext()
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fakeClient := tools.NewFakeEtcdClient(t)
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key, _ := makeControllerKey(ctx, "foo")
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fakeClient.Set(key, runtime.EncodeOrDie(latest.Codec, &api.ReplicationController{ObjectMeta: api.ObjectMeta{Name: "foo"}}), 0)
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registry := NewTestEtcdRegistry(fakeClient)
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_, err := registry.CreateController(ctx, &api.ReplicationController{
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ObjectMeta: api.ObjectMeta{
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Name: "foo",
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},
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})
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if !errors.IsAlreadyExists(err) {
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t.Errorf("expected already exists err, got %#v", err)
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}
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}
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func TestEtcdUpdateController(t *testing.T) {
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ctx := api.NewDefaultContext()
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fakeClient := tools.NewFakeEtcdClient(t)
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fakeClient.TestIndex = true
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key, _ := makeControllerKey(ctx, "foo")
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resp, _ := fakeClient.Set(key, runtime.EncodeOrDie(latest.Codec, &api.ReplicationController{ObjectMeta: api.ObjectMeta{Name: "foo"}}), 0)
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registry := NewTestEtcdRegistry(fakeClient)
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_, err := registry.UpdateController(ctx, &api.ReplicationController{
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ObjectMeta: api.ObjectMeta{Name: "foo", ResourceVersion: strconv.FormatUint(resp.Node.ModifiedIndex, 10)},
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Spec: api.ReplicationControllerSpec{
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Replicas: 2,
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},
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})
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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ctrl, err := registry.GetController(ctx, "foo")
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if ctrl.Spec.Replicas != 2 {
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t.Errorf("Unexpected controller: %#v", ctrl)
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}
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}
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func TestEtcdWatchController(t *testing.T) {
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ctx := api.NewDefaultContext()
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fakeClient := tools.NewFakeEtcdClient(t)
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registry := NewTestEtcdRegistry(fakeClient)
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watching, err := registry.WatchControllers(ctx,
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labels.Everything(),
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fields.Everything(),
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"1",
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)
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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fakeClient.WaitForWatchCompletion()
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select {
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case _, ok := <-watching.ResultChan():
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if !ok {
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t.Errorf("watching channel should be open")
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}
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default:
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}
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fakeClient.WatchInjectError <- nil
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if _, ok := <-watching.ResultChan(); ok {
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t.Errorf("watching channel should be closed")
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}
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watching.Stop()
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}
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func TestEtcdWatchControllersMatch(t *testing.T) {
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ctx := api.NewDefaultContext()
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fakeClient := tools.NewFakeEtcdClient(t)
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fakeClient.ExpectNotFoundGet(etcdgeneric.NamespaceKeyRootFunc(ctx, "/registry/pods"))
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registry := NewTestEtcdRegistryWithPods(fakeClient)
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watching, err := registry.WatchControllers(ctx,
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labels.SelectorFromSet(labels.Set{"name": "foo"}),
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fields.Everything(),
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"1",
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)
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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fakeClient.WaitForWatchCompletion()
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controller := &api.ReplicationController{
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ObjectMeta: api.ObjectMeta{
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Name: "foo",
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Labels: map[string]string{
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"name": "foo",
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},
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},
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}
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controllerBytes, _ := latest.Codec.Encode(controller)
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fakeClient.WatchResponse <- &etcd.Response{
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Action: "create",
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Node: &etcd.Node{
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Value: string(controllerBytes),
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},
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}
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select {
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case _, ok := <-watching.ResultChan():
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if !ok {
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t.Errorf("watching channel should be open")
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}
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case <-time.After(time.Millisecond * 100):
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t.Error("unexpected timeout from result channel")
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}
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watching.Stop()
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}
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func TestEtcdWatchControllersNotMatch(t *testing.T) {
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ctx := api.NewDefaultContext()
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fakeClient := tools.NewFakeEtcdClient(t)
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fakeClient.ExpectNotFoundGet(etcdgeneric.NamespaceKeyRootFunc(ctx, "/registry/pods"))
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registry := NewTestEtcdRegistryWithPods(fakeClient)
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watching, err := registry.WatchControllers(ctx,
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labels.SelectorFromSet(labels.Set{"name": "foo"}),
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fields.Everything(),
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"1",
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)
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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fakeClient.WaitForWatchCompletion()
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controller := &api.ReplicationController{
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ObjectMeta: api.ObjectMeta{
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Name: "bar",
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Labels: map[string]string{
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"name": "bar",
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},
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},
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}
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controllerBytes, _ := latest.Codec.Encode(controller)
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fakeClient.WatchResponse <- &etcd.Response{
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Action: "create",
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Node: &etcd.Node{
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Value: string(controllerBytes),
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},
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}
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select {
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case <-watching.ResultChan():
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t.Error("unexpected result from result channel")
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case <-time.After(time.Millisecond * 100):
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// expected case
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}
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}
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func TestEtcdListServices(t *testing.T) {
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ctx := api.NewDefaultContext()
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fakeClient := tools.NewFakeEtcdClient(t)
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key := makeServiceListKey(ctx)
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fakeClient.Data[key] = tools.EtcdResponseWithError{
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R: &etcd.Response{
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Node: &etcd.Node{
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Nodes: []*etcd.Node{
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{
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Value: runtime.EncodeOrDie(latest.Codec, &api.Service{ObjectMeta: api.ObjectMeta{Name: "foo"}}),
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},
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{
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Value: runtime.EncodeOrDie(latest.Codec, &api.Service{ObjectMeta: api.ObjectMeta{Name: "bar"}}),
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},
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},
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},
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},
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E: nil,
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}
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registry := NewTestEtcdRegistry(fakeClient)
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services, err := registry.ListServices(ctx)
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
|
|
|
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if len(services.Items) != 2 || services.Items[0].Name != "foo" || services.Items[1].Name != "bar" {
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t.Errorf("Unexpected service list: %#v", services)
|
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}
|
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}
|
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|
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func TestEtcdCreateService(t *testing.T) {
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ctx := api.NewDefaultContext()
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fakeClient := tools.NewFakeEtcdClient(t)
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registry := NewTestEtcdRegistry(fakeClient)
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_, err := registry.CreateService(ctx, &api.Service{
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ObjectMeta: api.ObjectMeta{Name: "foo"},
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})
|
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if err != nil {
|
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t.Errorf("unexpected error: %v", err)
|
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}
|
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|
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key, _ := makeServiceKey(ctx, "foo")
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resp, err := fakeClient.Get(key, false, false)
|
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if err != nil {
|
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t.Errorf("unexpected error: %v", err)
|
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}
|
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|
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var service api.Service
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err = latest.Codec.DecodeInto([]byte(resp.Node.Value), &service)
|
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if err != nil {
|
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t.Errorf("unexpected error: %v", err)
|
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}
|
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|
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if service.Name != "foo" {
|
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t.Errorf("Unexpected service: %#v %s", service, resp.Node.Value)
|
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}
|
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}
|
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|
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func TestEtcdCreateServiceAlreadyExisting(t *testing.T) {
|
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ctx := api.NewDefaultContext()
|
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fakeClient := tools.NewFakeEtcdClient(t)
|
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key, _ := makeServiceKey(ctx, "foo")
|
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fakeClient.Set(key, runtime.EncodeOrDie(latest.Codec, &api.Service{ObjectMeta: api.ObjectMeta{Name: "foo"}}), 0)
|
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registry := NewTestEtcdRegistry(fakeClient)
|
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_, err := registry.CreateService(ctx, &api.Service{
|
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ObjectMeta: api.ObjectMeta{Name: "foo"},
|
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})
|
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if !errors.IsAlreadyExists(err) {
|
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t.Errorf("expected already exists err, got %#v", err)
|
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}
|
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}
|
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|
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// TestEtcdGetServiceDifferentNamespace ensures same-name services in different namespaces do not clash
|
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func TestEtcdGetServiceDifferentNamespace(t *testing.T) {
|
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fakeClient := tools.NewFakeEtcdClient(t)
|
|
|
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ctx1 := api.NewDefaultContext()
|
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ctx2 := api.WithNamespace(api.NewContext(), "other")
|
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|
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key1, _ := makeServiceKey(ctx1, "foo")
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key2, _ := makeServiceKey(ctx2, "foo")
|
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|
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fakeClient.Set(key1, runtime.EncodeOrDie(latest.Codec, &api.Service{ObjectMeta: api.ObjectMeta{Namespace: "default", Name: "foo"}}), 0)
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fakeClient.Set(key2, runtime.EncodeOrDie(latest.Codec, &api.Service{ObjectMeta: api.ObjectMeta{Namespace: "other", Name: "foo"}}), 0)
|
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|
|
registry := NewTestEtcdRegistry(fakeClient)
|
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|
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service1, err := registry.GetService(ctx1, "foo")
|
|
if err != nil {
|
|
t.Errorf("unexpected error: %v", err)
|
|
}
|
|
if service1.Name != "foo" {
|
|
t.Errorf("Unexpected service: %#v", service1)
|
|
}
|
|
if service1.Namespace != "default" {
|
|
t.Errorf("Unexpected service: %#v", service1)
|
|
}
|
|
|
|
service2, err := registry.GetService(ctx2, "foo")
|
|
if err != nil {
|
|
t.Errorf("unexpected error: %v", err)
|
|
}
|
|
if service2.Name != "foo" {
|
|
t.Errorf("Unexpected service: %#v", service2)
|
|
}
|
|
if service2.Namespace != "other" {
|
|
t.Errorf("Unexpected service: %#v", service2)
|
|
}
|
|
|
|
}
|
|
|
|
func TestEtcdGetService(t *testing.T) {
|
|
ctx := api.NewDefaultContext()
|
|
fakeClient := tools.NewFakeEtcdClient(t)
|
|
key, _ := makeServiceKey(ctx, "foo")
|
|
fakeClient.Set(key, runtime.EncodeOrDie(latest.Codec, &api.Service{ObjectMeta: api.ObjectMeta{Name: "foo"}}), 0)
|
|
registry := NewTestEtcdRegistry(fakeClient)
|
|
service, err := registry.GetService(ctx, "foo")
|
|
if err != nil {
|
|
t.Errorf("unexpected error: %v", err)
|
|
}
|
|
|
|
if service.Name != "foo" {
|
|
t.Errorf("Unexpected service: %#v", service)
|
|
}
|
|
}
|
|
|
|
func TestEtcdGetServiceNotFound(t *testing.T) {
|
|
ctx := api.NewDefaultContext()
|
|
fakeClient := tools.NewFakeEtcdClient(t)
|
|
key, _ := makeServiceKey(ctx, "foo")
|
|
fakeClient.Data[key] = tools.EtcdResponseWithError{
|
|
R: &etcd.Response{
|
|
Node: nil,
|
|
},
|
|
E: tools.EtcdErrorNotFound,
|
|
}
|
|
registry := NewTestEtcdRegistry(fakeClient)
|
|
_, err := registry.GetService(ctx, "foo")
|
|
if !errors.IsNotFound(err) {
|
|
t.Errorf("Unexpected error returned: %#v", err)
|
|
}
|
|
}
|
|
|
|
func TestEtcdDeleteService(t *testing.T) {
|
|
ctx := api.NewDefaultContext()
|
|
fakeClient := tools.NewFakeEtcdClient(t)
|
|
registry := NewTestEtcdRegistryWithPods(fakeClient)
|
|
key, _ := makeServiceKey(ctx, "foo")
|
|
fakeClient.Set(key, runtime.EncodeOrDie(latest.Codec, &api.Service{ObjectMeta: api.ObjectMeta{Name: "foo"}}), 0)
|
|
endpointsKey, _ := etcdgeneric.NamespaceKeyFunc(ctx, "/registry/services/endpoints", "foo")
|
|
fakeClient.Set(endpointsKey, runtime.EncodeOrDie(latest.Codec, &api.Endpoints{ObjectMeta: api.ObjectMeta{Name: "foo"}}), 0)
|
|
|
|
err := registry.DeleteService(ctx, "foo")
|
|
if err != nil {
|
|
t.Errorf("unexpected error: %v", err)
|
|
}
|
|
|
|
if len(fakeClient.DeletedKeys) != 2 {
|
|
t.Errorf("Expected 2 delete, found %#v", fakeClient.DeletedKeys)
|
|
}
|
|
if fakeClient.DeletedKeys[0] != key {
|
|
t.Errorf("Unexpected key: %s, expected %s", fakeClient.DeletedKeys[0], key)
|
|
}
|
|
if fakeClient.DeletedKeys[1] != endpointsKey {
|
|
t.Errorf("Unexpected key: %s, expected %s", fakeClient.DeletedKeys[1], endpointsKey)
|
|
}
|
|
}
|
|
|
|
func TestEtcdUpdateService(t *testing.T) {
|
|
ctx := api.NewDefaultContext()
|
|
fakeClient := tools.NewFakeEtcdClient(t)
|
|
fakeClient.TestIndex = true
|
|
key, _ := makeServiceKey(ctx, "uniquefoo")
|
|
resp, _ := fakeClient.Set(key, runtime.EncodeOrDie(latest.Codec, &api.Service{ObjectMeta: api.ObjectMeta{Name: "uniquefoo"}}), 0)
|
|
registry := NewTestEtcdRegistry(fakeClient)
|
|
testService := api.Service{
|
|
ObjectMeta: api.ObjectMeta{
|
|
Name: "uniquefoo",
|
|
ResourceVersion: strconv.FormatUint(resp.Node.ModifiedIndex, 10),
|
|
Labels: map[string]string{
|
|
"baz": "bar",
|
|
},
|
|
},
|
|
Spec: api.ServiceSpec{
|
|
Selector: map[string]string{
|
|
"baz": "bar",
|
|
},
|
|
SessionAffinity: "None",
|
|
},
|
|
}
|
|
_, err := registry.UpdateService(ctx, &testService)
|
|
if err != nil {
|
|
t.Errorf("unexpected error: %v", err)
|
|
}
|
|
svc, err := registry.GetService(ctx, "uniquefoo")
|
|
if err != nil {
|
|
t.Errorf("unexpected error: %v", err)
|
|
}
|
|
|
|
// Clear modified indices before the equality test.
|
|
svc.ResourceVersion = ""
|
|
testService.ResourceVersion = ""
|
|
if !api.Semantic.DeepEqual(*svc, testService) {
|
|
t.Errorf("Unexpected service: got\n %#v\n, wanted\n %#v", svc, testService)
|
|
}
|
|
}
|
|
|
|
func TestEtcdWatchServices(t *testing.T) {
|
|
ctx := api.NewDefaultContext()
|
|
fakeClient := tools.NewFakeEtcdClient(t)
|
|
registry := NewTestEtcdRegistry(fakeClient)
|
|
watching, err := registry.WatchServices(ctx,
|
|
labels.Everything(),
|
|
fields.SelectorFromSet(fields.Set{"name": "foo"}),
|
|
"1",
|
|
)
|
|
if err != nil {
|
|
t.Fatalf("unexpected error: %v", err)
|
|
}
|
|
fakeClient.WaitForWatchCompletion()
|
|
|
|
select {
|
|
case _, ok := <-watching.ResultChan():
|
|
if !ok {
|
|
t.Errorf("watching channel should be open")
|
|
}
|
|
default:
|
|
}
|
|
fakeClient.WatchInjectError <- nil
|
|
if _, ok := <-watching.ResultChan(); ok {
|
|
t.Errorf("watching channel should be closed")
|
|
}
|
|
watching.Stop()
|
|
}
|
|
|
|
func TestEtcdWatchServicesBadSelector(t *testing.T) {
|
|
ctx := api.NewDefaultContext()
|
|
fakeClient := tools.NewFakeEtcdClient(t)
|
|
registry := NewTestEtcdRegistry(fakeClient)
|
|
_, err := registry.WatchServices(
|
|
ctx,
|
|
labels.Everything(),
|
|
fields.SelectorFromSet(fields.Set{"Field.Selector": "foo"}),
|
|
"",
|
|
)
|
|
if err == nil {
|
|
t.Errorf("unexpected non-error: %v", err)
|
|
}
|
|
|
|
_, err = registry.WatchServices(
|
|
ctx,
|
|
labels.SelectorFromSet(labels.Set{"Label.Selector": "foo"}),
|
|
fields.Everything(),
|
|
"",
|
|
)
|
|
if err == nil {
|
|
t.Errorf("unexpected non-error: %v", err)
|
|
}
|
|
}
|
|
|
|
func TestEtcdWatchEndpoints(t *testing.T) {
|
|
ctx := api.NewDefaultContext()
|
|
fakeClient := tools.NewFakeEtcdClient(t)
|
|
registry := NewTestEtcdRegistryWithPods(fakeClient)
|
|
watching, err := registry.endpoints.WatchEndpoints(
|
|
ctx,
|
|
labels.Everything(),
|
|
fields.SelectorFromSet(fields.Set{"name": "foo"}),
|
|
"1",
|
|
)
|
|
if err != nil {
|
|
t.Fatalf("unexpected error: %v", err)
|
|
}
|
|
fakeClient.WaitForWatchCompletion()
|
|
|
|
select {
|
|
case _, ok := <-watching.ResultChan():
|
|
if !ok {
|
|
t.Errorf("watching channel should be open")
|
|
}
|
|
default:
|
|
}
|
|
fakeClient.WatchInjectError <- nil
|
|
if _, ok := <-watching.ResultChan(); ok {
|
|
t.Errorf("watching channel should be closed")
|
|
}
|
|
watching.Stop()
|
|
}
|
|
|
|
func TestEtcdWatchEndpointsAcrossNamespaces(t *testing.T) {
|
|
ctx := api.NewContext()
|
|
fakeClient := tools.NewFakeEtcdClient(t)
|
|
registry := NewTestEtcdRegistryWithPods(fakeClient)
|
|
watching, err := registry.endpoints.WatchEndpoints(
|
|
ctx,
|
|
labels.Everything(),
|
|
fields.Everything(),
|
|
"1",
|
|
)
|
|
if err != nil {
|
|
t.Fatalf("unexpected error: %v", err)
|
|
}
|
|
fakeClient.WaitForWatchCompletion()
|
|
|
|
select {
|
|
case _, ok := <-watching.ResultChan():
|
|
if !ok {
|
|
t.Errorf("watching channel should be open")
|
|
}
|
|
default:
|
|
}
|
|
fakeClient.WatchInjectError <- nil
|
|
if _, ok := <-watching.ResultChan(); ok {
|
|
t.Errorf("watching channel should be closed")
|
|
}
|
|
watching.Stop()
|
|
}
|
|
|
|
// TODO We need a test for the compare and swap behavior. This basically requires two things:
|
|
// 1) Add a per-operation synchronization channel to the fake etcd client, such that any operation waits on that
|
|
// channel, this will enable us to orchestrate the flow of etcd requests in the test.
|
|
// 2) We need to make the map from key to (response, error) actually be a [](response, error) and pop
|
|
// our way through the responses. That will enable us to hand back multiple different responses for
|
|
// the same key.
|
|
// Once that infrastructure is in place, the test looks something like:
|
|
// Routine #1 Routine #2
|
|
// Read
|
|
// Wait for sync on update Read
|
|
// Update
|
|
// Update
|
|
// In the buggy case, this will result in lost data. In the correct case, the second update should fail
|
|
// and be retried.
|