82bcdd3b3b
Allows us to define different watch versioning regimes in the future as well as to encode information with the resource version. This changes /watch/resources?resourceVersion=3 to start the watch at 4 instead of 3, which means clients can read a resource version and then send it back to the server. Clients should no longer do math on resource versions.
293 lines
8.7 KiB
Go
293 lines
8.7 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 service
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import (
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"fmt"
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"net/http"
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"net/http/httptest"
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"testing"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
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_ "github.com/GoogleCloudPlatform/kubernetes/pkg/api/latest"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api/testapi"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
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)
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func newPodList(count int) api.PodList {
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pods := []api.Pod{}
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for i := 0; i < count; i++ {
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pods = append(pods, api.Pod{
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TypeMeta: api.TypeMeta{
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ID: fmt.Sprintf("pod%d", i),
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APIVersion: testapi.Version(),
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},
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DesiredState: api.PodState{
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Manifest: api.ContainerManifest{
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Containers: []api.Container{
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{
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Ports: []api.Port{
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{
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ContainerPort: 8080,
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},
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},
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},
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},
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},
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},
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CurrentState: api.PodState{
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PodIP: "1.2.3.4",
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},
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})
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}
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return api.PodList{
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TypeMeta: api.TypeMeta{APIVersion: testapi.Version(), Kind: "PodList"},
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Items: pods,
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}
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}
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func TestFindPort(t *testing.T) {
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manifest := api.ContainerManifest{
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Containers: []api.Container{
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{
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Ports: []api.Port{
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{
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Name: "foo",
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ContainerPort: 8080,
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HostPort: 9090,
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},
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{
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Name: "bar",
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ContainerPort: 8000,
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HostPort: 9000,
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},
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},
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},
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},
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}
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port, err := findPort(&manifest, util.IntOrString{Kind: util.IntstrString, StrVal: "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 port != 8080 {
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t.Errorf("Expected 8080, Got %d", port)
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}
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port, err = findPort(&manifest, util.IntOrString{Kind: util.IntstrString, StrVal: "bar"})
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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 port != 8000 {
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t.Errorf("Expected 8000, Got %d", port)
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}
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port, err = findPort(&manifest, util.IntOrString{Kind: util.IntstrInt, IntVal: 8000})
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if port != 8000 {
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t.Errorf("Expected 8000, Got %d", port)
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}
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port, err = findPort(&manifest, util.IntOrString{Kind: util.IntstrInt, IntVal: 7000})
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if port != 7000 {
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t.Errorf("Expected 7000, Got %d", port)
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}
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port, err = findPort(&manifest, util.IntOrString{Kind: util.IntstrString, StrVal: "baz"})
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if err == nil {
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t.Error("unexpected non-error")
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}
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port, err = findPort(&manifest, util.IntOrString{Kind: util.IntstrString, StrVal: ""})
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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 port != 8080 {
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t.Errorf("Expected 8080, Got %d", port)
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}
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port, err = findPort(&manifest, util.IntOrString{})
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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 port != 8080 {
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t.Errorf("Expected 8080, Got %d", port)
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}
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}
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type serverResponse struct {
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statusCode int
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obj interface{}
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}
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func makeTestServer(t *testing.T, podResponse serverResponse, serviceResponse serverResponse, endpointsResponse serverResponse) (*httptest.Server, *util.FakeHandler) {
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fakePodHandler := util.FakeHandler{
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StatusCode: podResponse.statusCode,
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ResponseBody: util.EncodeJSON(podResponse.obj),
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}
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fakeServiceHandler := util.FakeHandler{
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StatusCode: serviceResponse.statusCode,
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ResponseBody: util.EncodeJSON(serviceResponse.obj),
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}
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fakeEndpointsHandler := util.FakeHandler{
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StatusCode: endpointsResponse.statusCode,
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ResponseBody: util.EncodeJSON(endpointsResponse.obj),
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}
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mux := http.NewServeMux()
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mux.Handle("/api/"+testapi.Version()+"/pods", &fakePodHandler)
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mux.Handle("/api/"+testapi.Version()+"/services", &fakeServiceHandler)
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mux.Handle("/api/"+testapi.Version()+"/endpoints", &fakeEndpointsHandler)
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mux.Handle("/api/"+testapi.Version()+"/endpoints/", &fakeEndpointsHandler)
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mux.HandleFunc("/", func(res http.ResponseWriter, req *http.Request) {
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t.Errorf("unexpected request: %v", req.RequestURI)
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res.WriteHeader(http.StatusNotFound)
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})
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return httptest.NewServer(mux), &fakeEndpointsHandler
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}
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func TestSyncEndpointsEmpty(t *testing.T) {
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testServer, _ := makeTestServer(t,
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serverResponse{http.StatusOK, newPodList(0)},
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serverResponse{http.StatusOK, api.ServiceList{}},
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serverResponse{http.StatusOK, api.Endpoints{}})
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client := client.NewOrDie(&client.Config{Host: testServer.URL, Version: testapi.Version()})
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endpoints := NewEndpointController(client)
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if err := endpoints.SyncServiceEndpoints(); err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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}
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func TestSyncEndpointsError(t *testing.T) {
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testServer, _ := makeTestServer(t,
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serverResponse{http.StatusOK, newPodList(0)},
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serverResponse{http.StatusInternalServerError, api.ServiceList{}},
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serverResponse{http.StatusOK, api.Endpoints{}})
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client := client.NewOrDie(&client.Config{Host: testServer.URL, Version: testapi.Version()})
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endpoints := NewEndpointController(client)
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if err := endpoints.SyncServiceEndpoints(); err == nil {
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t.Errorf("unexpected non-error")
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}
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}
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func TestSyncEndpointsItemsPreexisting(t *testing.T) {
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serviceList := api.ServiceList{
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Items: []api.Service{
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{
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TypeMeta: api.TypeMeta{ID: "foo"},
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Selector: map[string]string{
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"foo": "bar",
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},
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},
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},
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}
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testServer, endpointsHandler := makeTestServer(t,
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serverResponse{http.StatusOK, newPodList(1)},
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serverResponse{http.StatusOK, serviceList},
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serverResponse{http.StatusOK, api.Endpoints{
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TypeMeta: api.TypeMeta{
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ID: "foo",
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ResourceVersion: "1",
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},
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Endpoints: []string{"6.7.8.9:1000"},
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}})
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client := client.NewOrDie(&client.Config{Host: testServer.URL, Version: testapi.Version()})
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endpoints := NewEndpointController(client)
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if err := endpoints.SyncServiceEndpoints(); err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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data := runtime.EncodeOrDie(testapi.CodecForVersionOrDie(), &api.Endpoints{
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TypeMeta: api.TypeMeta{
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ID: "foo",
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ResourceVersion: "1",
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},
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Endpoints: []string{"1.2.3.4:8080"},
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})
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endpointsHandler.ValidateRequest(t, "/api/"+testapi.Version()+"/endpoints/foo", "PUT", &data)
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}
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func TestSyncEndpointsItemsPreexistingIdentical(t *testing.T) {
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serviceList := api.ServiceList{
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Items: []api.Service{
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{
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TypeMeta: api.TypeMeta{ID: "foo"},
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Selector: map[string]string{
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"foo": "bar",
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},
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},
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},
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}
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testServer, endpointsHandler := makeTestServer(t,
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serverResponse{http.StatusOK, newPodList(1)},
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serverResponse{http.StatusOK, serviceList},
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serverResponse{http.StatusOK, api.Endpoints{
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TypeMeta: api.TypeMeta{
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ResourceVersion: "1",
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},
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Endpoints: []string{"1.2.3.4:8080"},
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}})
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client := client.NewOrDie(&client.Config{Host: testServer.URL, Version: testapi.Version()})
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endpoints := NewEndpointController(client)
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if err := endpoints.SyncServiceEndpoints(); err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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endpointsHandler.ValidateRequest(t, "/api/"+testapi.Version()+"/endpoints/foo", "GET", nil)
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}
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func TestSyncEndpointsItems(t *testing.T) {
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serviceList := api.ServiceList{
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Items: []api.Service{
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{
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TypeMeta: api.TypeMeta{ID: "foo"},
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Selector: map[string]string{
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"foo": "bar",
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},
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},
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},
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}
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testServer, endpointsHandler := makeTestServer(t,
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serverResponse{http.StatusOK, newPodList(1)},
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serverResponse{http.StatusOK, serviceList},
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serverResponse{http.StatusOK, api.Endpoints{}})
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client := client.NewOrDie(&client.Config{Host: testServer.URL, Version: testapi.Version()})
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endpoints := NewEndpointController(client)
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if err := endpoints.SyncServiceEndpoints(); err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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data := runtime.EncodeOrDie(testapi.CodecForVersionOrDie(), &api.Endpoints{
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TypeMeta: api.TypeMeta{
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ResourceVersion: "",
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},
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Endpoints: []string{"1.2.3.4:8080"},
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})
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endpointsHandler.ValidateRequest(t, "/api/"+testapi.Version()+"/endpoints", "POST", &data)
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}
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func TestSyncEndpointsPodError(t *testing.T) {
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serviceList := api.ServiceList{
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Items: []api.Service{
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{
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Selector: map[string]string{
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"foo": "bar",
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},
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},
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},
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}
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testServer, _ := makeTestServer(t,
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serverResponse{http.StatusInternalServerError, api.PodList{}},
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serverResponse{http.StatusOK, serviceList},
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serverResponse{http.StatusOK, api.Endpoints{}})
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client := client.NewOrDie(&client.Config{Host: testServer.URL, Version: testapi.Version()})
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endpoints := NewEndpointController(client)
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if err := endpoints.SyncServiceEndpoints(); err == nil {
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t.Error("Unexpected non-error")
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}
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}
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