Controller codebase refactoring
This commit is contained in:
gmarek
529
pkg/controller/endpoint/endpoints_controller_test.go
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529
pkg/controller/endpoint/endpoints_controller_test.go
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@@ -0,0 +1,529 @@
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/*
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Copyright 2014 The Kubernetes Authors 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 endpointcontroller
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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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endptspkg "github.com/GoogleCloudPlatform/kubernetes/pkg/api/endpoints"
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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/client/cache"
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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 addPods(store cache.Store, namespace string, nPods int, nPorts int) {
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for i := 0; i < nPods; i++ {
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p := &api.Pod{
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TypeMeta: api.TypeMeta{APIVersion: testapi.Version()},
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ObjectMeta: api.ObjectMeta{
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Namespace: namespace,
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Name: fmt.Sprintf("pod%d", i),
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Labels: map[string]string{"foo": "bar"},
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},
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Spec: api.PodSpec{
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Containers: []api.Container{{Ports: []api.ContainerPort{}}},
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},
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Status: api.PodStatus{
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PodIP: fmt.Sprintf("1.2.3.%d", 4+i),
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Conditions: []api.PodCondition{
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{
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Type: api.PodReady,
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Status: api.ConditionTrue,
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},
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},
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},
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}
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for j := 0; j < nPorts; j++ {
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p.Spec.Containers[0].Ports = append(p.Spec.Containers[0].Ports,
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api.ContainerPort{Name: fmt.Sprintf("port%d", i), ContainerPort: 8080 + j})
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}
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store.Add(p)
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}
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}
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func TestFindPort(t *testing.T) {
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testCases := []struct {
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name string
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containers []api.Container
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port util.IntOrString
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expected int
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pass bool
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}{{
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name: "valid int, no ports",
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containers: []api.Container{{}},
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port: util.NewIntOrStringFromInt(93),
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expected: 93,
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pass: true,
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}, {
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name: "valid int, with ports",
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containers: []api.Container{{Ports: []api.ContainerPort{{
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Name: "",
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ContainerPort: 11,
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Protocol: "TCP",
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}, {
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Name: "p",
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ContainerPort: 22,
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Protocol: "TCP",
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}}}},
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port: util.NewIntOrStringFromInt(93),
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expected: 93,
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pass: true,
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}, {
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name: "valid str, no ports",
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containers: []api.Container{{}},
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port: util.NewIntOrStringFromString("p"),
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expected: 0,
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pass: false,
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}, {
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name: "valid str, one ctr with ports",
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containers: []api.Container{{Ports: []api.ContainerPort{{
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Name: "",
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ContainerPort: 11,
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Protocol: "UDP",
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}, {
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Name: "p",
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ContainerPort: 22,
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Protocol: "TCP",
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}, {
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Name: "q",
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ContainerPort: 33,
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Protocol: "TCP",
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}}}},
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port: util.NewIntOrStringFromString("q"),
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expected: 33,
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pass: true,
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}, {
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name: "valid str, two ctr with ports",
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containers: []api.Container{{}, {Ports: []api.ContainerPort{{
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Name: "",
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ContainerPort: 11,
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Protocol: "UDP",
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}, {
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Name: "p",
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ContainerPort: 22,
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Protocol: "TCP",
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}, {
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Name: "q",
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ContainerPort: 33,
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Protocol: "TCP",
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}}}},
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port: util.NewIntOrStringFromString("q"),
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expected: 33,
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pass: true,
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}}
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for _, tc := range testCases {
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port, err := findPort(&api.Pod{Spec: api.PodSpec{Containers: tc.containers}},
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&api.ServicePort{Protocol: "TCP", TargetPort: tc.port})
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if err != nil && tc.pass {
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t.Errorf("unexpected error for %s: %v", tc.name, err)
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}
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if err == nil && !tc.pass {
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t.Errorf("unexpected non-error for %s: %d", tc.name, port)
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}
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if port != tc.expected {
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t.Errorf("wrong result for %s: expected %d, got %d", tc.name, tc.expected, port)
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}
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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, namespace string, endpointsResponse serverResponse) (*httptest.Server, *util.FakeHandler) {
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fakeEndpointsHandler := util.FakeHandler{
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StatusCode: endpointsResponse.statusCode,
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ResponseBody: runtime.EncodeOrDie(testapi.Codec(), endpointsResponse.obj.(runtime.Object)),
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}
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mux := http.NewServeMux()
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mux.Handle(testapi.ResourcePath("endpoints", namespace, ""), &fakeEndpointsHandler)
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mux.Handle(testapi.ResourcePath("endpoints/", namespace, ""), &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 TestSyncEndpointsItemsPreserveNoSelector(t *testing.T) {
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ns := api.NamespaceDefault
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testServer, endpointsHandler := makeTestServer(t, ns,
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serverResponse{http.StatusOK, &api.Endpoints{
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ObjectMeta: api.ObjectMeta{
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Name: "foo",
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Namespace: ns,
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ResourceVersion: "1",
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},
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Subsets: []api.EndpointSubset{{
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Addresses: []api.EndpointAddress{{IP: "6.7.8.9"}},
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Ports: []api.EndpointPort{{Port: 1000}},
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}},
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}})
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defer testServer.Close()
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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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endpoints.serviceStore.Store.Add(&api.Service{
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ObjectMeta: api.ObjectMeta{Name: "foo", Namespace: ns},
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Spec: api.ServiceSpec{Ports: []api.ServicePort{{Port: 80}}},
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})
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endpoints.syncService(ns + "/foo")
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endpointsHandler.ValidateRequestCount(t, 0)
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}
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func TestCheckLeftoverEndpoints(t *testing.T) {
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ns := api.NamespaceDefault
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// Note that this requests *all* endpoints, therefore the NamespaceAll
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// below.
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testServer, _ := makeTestServer(t, api.NamespaceAll,
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serverResponse{http.StatusOK, &api.EndpointsList{
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ListMeta: api.ListMeta{
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ResourceVersion: "1",
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},
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Items: []api.Endpoints{{
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ObjectMeta: api.ObjectMeta{
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Name: "foo",
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Namespace: ns,
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ResourceVersion: "1",
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},
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Subsets: []api.EndpointSubset{{
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Addresses: []api.EndpointAddress{{IP: "6.7.8.9"}},
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Ports: []api.EndpointPort{{Port: 1000}},
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}},
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}},
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}})
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defer testServer.Close()
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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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endpoints.checkLeftoverEndpoints()
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if e, a := 1, endpoints.queue.Len(); e != a {
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t.Fatalf("Expected %v, got %v", e, a)
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}
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got, _ := endpoints.queue.Get()
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if e, a := ns+"/foo", got; e != a {
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t.Errorf("Expected %v, got %v", e, a)
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}
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}
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func TestSyncEndpointsProtocolTCP(t *testing.T) {
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ns := "other"
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testServer, endpointsHandler := makeTestServer(t, ns,
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serverResponse{http.StatusOK, &api.Endpoints{
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ObjectMeta: api.ObjectMeta{
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Name: "foo",
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Namespace: ns,
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ResourceVersion: "1",
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},
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Subsets: []api.EndpointSubset{{
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Addresses: []api.EndpointAddress{{IP: "6.7.8.9"}},
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Ports: []api.EndpointPort{{Port: 1000, Protocol: "TCP"}},
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}},
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}})
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defer testServer.Close()
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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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endpoints.serviceStore.Store.Add(&api.Service{
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ObjectMeta: api.ObjectMeta{Name: "foo", Namespace: ns},
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Spec: api.ServiceSpec{
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Selector: map[string]string{},
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Ports: []api.ServicePort{{Port: 80}},
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},
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})
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endpoints.syncService(ns + "/foo")
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endpointsHandler.ValidateRequestCount(t, 0)
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}
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func TestSyncEndpointsProtocolUDP(t *testing.T) {
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ns := "other"
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testServer, endpointsHandler := makeTestServer(t, ns,
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serverResponse{http.StatusOK, &api.Endpoints{
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ObjectMeta: api.ObjectMeta{
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Name: "foo",
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Namespace: ns,
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ResourceVersion: "1",
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},
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Subsets: []api.EndpointSubset{{
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Addresses: []api.EndpointAddress{{IP: "6.7.8.9"}},
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Ports: []api.EndpointPort{{Port: 1000, Protocol: "UDP"}},
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}},
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}})
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defer testServer.Close()
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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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endpoints.serviceStore.Store.Add(&api.Service{
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ObjectMeta: api.ObjectMeta{Name: "foo", Namespace: ns},
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Spec: api.ServiceSpec{
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Selector: map[string]string{},
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Ports: []api.ServicePort{{Port: 80}},
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},
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})
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endpoints.syncService(ns + "/foo")
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endpointsHandler.ValidateRequestCount(t, 0)
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}
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func TestSyncEndpointsItemsEmptySelectorSelectsAll(t *testing.T) {
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ns := "other"
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testServer, endpointsHandler := makeTestServer(t, ns,
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serverResponse{http.StatusOK, &api.Endpoints{
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ObjectMeta: api.ObjectMeta{
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Name: "foo",
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Namespace: ns,
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ResourceVersion: "1",
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},
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Subsets: []api.EndpointSubset{},
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}})
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defer testServer.Close()
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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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addPods(endpoints.podStore.Store, ns, 1, 1)
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endpoints.serviceStore.Store.Add(&api.Service{
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ObjectMeta: api.ObjectMeta{Name: "foo", Namespace: ns},
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Spec: api.ServiceSpec{
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Selector: map[string]string{},
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Ports: []api.ServicePort{{Port: 80, Protocol: "TCP", TargetPort: util.NewIntOrStringFromInt(8080)}},
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},
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})
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endpoints.syncService(ns + "/foo")
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data := runtime.EncodeOrDie(testapi.Codec(), &api.Endpoints{
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ObjectMeta: api.ObjectMeta{
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Name: "foo",
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Namespace: ns,
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ResourceVersion: "1",
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},
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Subsets: []api.EndpointSubset{{
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Addresses: []api.EndpointAddress{{IP: "1.2.3.4", TargetRef: &api.ObjectReference{Kind: "Pod", Name: "pod0", Namespace: ns}}},
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Ports: []api.EndpointPort{{Port: 8080, Protocol: "TCP"}},
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}},
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})
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endpointsHandler.ValidateRequest(t, testapi.ResourcePath("endpoints", ns, "foo"), "PUT", &data)
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}
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func TestSyncEndpointsItemsPreexisting(t *testing.T) {
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ns := "bar"
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testServer, endpointsHandler := makeTestServer(t, ns,
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serverResponse{http.StatusOK, &api.Endpoints{
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ObjectMeta: api.ObjectMeta{
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Name: "foo",
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Namespace: ns,
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ResourceVersion: "1",
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},
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Subsets: []api.EndpointSubset{{
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Addresses: []api.EndpointAddress{{IP: "6.7.8.9"}},
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Ports: []api.EndpointPort{{Port: 1000}},
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}},
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}})
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defer testServer.Close()
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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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addPods(endpoints.podStore.Store, ns, 1, 1)
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endpoints.serviceStore.Store.Add(&api.Service{
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ObjectMeta: api.ObjectMeta{Name: "foo", Namespace: ns},
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Spec: api.ServiceSpec{
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Selector: map[string]string{"foo": "bar"},
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Ports: []api.ServicePort{{Port: 80, Protocol: "TCP", TargetPort: util.NewIntOrStringFromInt(8080)}},
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},
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})
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endpoints.syncService(ns + "/foo")
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data := runtime.EncodeOrDie(testapi.Codec(), &api.Endpoints{
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ObjectMeta: api.ObjectMeta{
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Name: "foo",
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Namespace: ns,
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ResourceVersion: "1",
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},
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Subsets: []api.EndpointSubset{{
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Addresses: []api.EndpointAddress{{IP: "1.2.3.4", TargetRef: &api.ObjectReference{Kind: "Pod", Name: "pod0", Namespace: ns}}},
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Ports: []api.EndpointPort{{Port: 8080, Protocol: "TCP"}},
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}},
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})
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endpointsHandler.ValidateRequest(t, testapi.ResourcePath("endpoints", ns, "foo"), "PUT", &data)
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}
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func TestSyncEndpointsItemsPreexistingIdentical(t *testing.T) {
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ns := api.NamespaceDefault
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testServer, endpointsHandler := makeTestServer(t, api.NamespaceDefault,
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serverResponse{http.StatusOK, &api.Endpoints{
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ObjectMeta: api.ObjectMeta{
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ResourceVersion: "1",
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Name: "foo",
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Namespace: ns,
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},
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Subsets: []api.EndpointSubset{{
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Addresses: []api.EndpointAddress{{IP: "1.2.3.4", TargetRef: &api.ObjectReference{Kind: "Pod", Name: "pod0", Namespace: ns}}},
|
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Ports: []api.EndpointPort{{Port: 8080, Protocol: "TCP"}},
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}},
|
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}})
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defer testServer.Close()
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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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addPods(endpoints.podStore.Store, api.NamespaceDefault, 1, 1)
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endpoints.serviceStore.Store.Add(&api.Service{
|
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ObjectMeta: api.ObjectMeta{Name: "foo", Namespace: api.NamespaceDefault},
|
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Spec: api.ServiceSpec{
|
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Selector: map[string]string{"foo": "bar"},
|
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Ports: []api.ServicePort{{Port: 80, Protocol: "TCP", TargetPort: util.NewIntOrStringFromInt(8080)}},
|
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},
|
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})
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endpoints.syncService(ns + "/foo")
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endpointsHandler.ValidateRequest(t, testapi.ResourcePath("endpoints", api.NamespaceDefault, "foo"), "GET", nil)
|
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}
|
||||
|
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func TestSyncEndpointsItems(t *testing.T) {
|
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ns := "other"
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testServer, endpointsHandler := makeTestServer(t, ns,
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serverResponse{http.StatusOK, &api.Endpoints{}})
|
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defer testServer.Close()
|
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client := client.NewOrDie(&client.Config{Host: testServer.URL, Version: testapi.Version()})
|
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endpoints := NewEndpointController(client)
|
||||
addPods(endpoints.podStore.Store, ns, 3, 2)
|
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addPods(endpoints.podStore.Store, "blah", 5, 2) // make sure these aren't found!
|
||||
endpoints.serviceStore.Store.Add(&api.Service{
|
||||
ObjectMeta: api.ObjectMeta{Name: "foo", Namespace: ns},
|
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Spec: api.ServiceSpec{
|
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Selector: map[string]string{"foo": "bar"},
|
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Ports: []api.ServicePort{
|
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{Name: "port0", Port: 80, Protocol: "TCP", TargetPort: util.NewIntOrStringFromInt(8080)},
|
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{Name: "port1", Port: 88, Protocol: "TCP", TargetPort: util.NewIntOrStringFromInt(8088)},
|
||||
},
|
||||
},
|
||||
})
|
||||
endpoints.syncService("other/foo")
|
||||
expectedSubsets := []api.EndpointSubset{{
|
||||
Addresses: []api.EndpointAddress{
|
||||
{IP: "1.2.3.4", TargetRef: &api.ObjectReference{Kind: "Pod", Name: "pod0", Namespace: ns}},
|
||||
{IP: "1.2.3.5", TargetRef: &api.ObjectReference{Kind: "Pod", Name: "pod1", Namespace: ns}},
|
||||
{IP: "1.2.3.6", TargetRef: &api.ObjectReference{Kind: "Pod", Name: "pod2", Namespace: ns}},
|
||||
},
|
||||
Ports: []api.EndpointPort{
|
||||
{Name: "port0", Port: 8080, Protocol: "TCP"},
|
||||
{Name: "port1", Port: 8088, Protocol: "TCP"},
|
||||
},
|
||||
}}
|
||||
data := runtime.EncodeOrDie(testapi.Codec(), &api.Endpoints{
|
||||
ObjectMeta: api.ObjectMeta{
|
||||
ResourceVersion: "",
|
||||
},
|
||||
Subsets: endptspkg.SortSubsets(expectedSubsets),
|
||||
})
|
||||
// endpointsHandler should get 2 requests - one for "GET" and the next for "POST".
|
||||
endpointsHandler.ValidateRequestCount(t, 2)
|
||||
endpointsHandler.ValidateRequest(t, testapi.ResourcePath("endpoints", ns, ""), "POST", &data)
|
||||
}
|
||||
|
||||
func TestSyncEndpointsItemsWithLabels(t *testing.T) {
|
||||
ns := "other"
|
||||
testServer, endpointsHandler := makeTestServer(t, ns,
|
||||
serverResponse{http.StatusOK, &api.Endpoints{}})
|
||||
defer testServer.Close()
|
||||
client := client.NewOrDie(&client.Config{Host: testServer.URL, Version: testapi.Version()})
|
||||
endpoints := NewEndpointController(client)
|
||||
addPods(endpoints.podStore.Store, ns, 3, 2)
|
||||
serviceLabels := map[string]string{"foo": "bar"}
|
||||
endpoints.serviceStore.Store.Add(&api.Service{
|
||||
ObjectMeta: api.ObjectMeta{
|
||||
Name: "foo",
|
||||
Namespace: ns,
|
||||
Labels: serviceLabels,
|
||||
},
|
||||
Spec: api.ServiceSpec{
|
||||
Selector: map[string]string{"foo": "bar"},
|
||||
Ports: []api.ServicePort{
|
||||
{Name: "port0", Port: 80, Protocol: "TCP", TargetPort: util.NewIntOrStringFromInt(8080)},
|
||||
{Name: "port1", Port: 88, Protocol: "TCP", TargetPort: util.NewIntOrStringFromInt(8088)},
|
||||
},
|
||||
},
|
||||
})
|
||||
endpoints.syncService(ns + "/foo")
|
||||
expectedSubsets := []api.EndpointSubset{{
|
||||
Addresses: []api.EndpointAddress{
|
||||
{IP: "1.2.3.4", TargetRef: &api.ObjectReference{Kind: "Pod", Name: "pod0", Namespace: ns}},
|
||||
{IP: "1.2.3.5", TargetRef: &api.ObjectReference{Kind: "Pod", Name: "pod1", Namespace: ns}},
|
||||
{IP: "1.2.3.6", TargetRef: &api.ObjectReference{Kind: "Pod", Name: "pod2", Namespace: ns}},
|
||||
},
|
||||
Ports: []api.EndpointPort{
|
||||
{Name: "port0", Port: 8080, Protocol: "TCP"},
|
||||
{Name: "port1", Port: 8088, Protocol: "TCP"},
|
||||
},
|
||||
}}
|
||||
data := runtime.EncodeOrDie(testapi.Codec(), &api.Endpoints{
|
||||
ObjectMeta: api.ObjectMeta{
|
||||
ResourceVersion: "",
|
||||
Labels: serviceLabels,
|
||||
},
|
||||
Subsets: endptspkg.SortSubsets(expectedSubsets),
|
||||
})
|
||||
// endpointsHandler should get 2 requests - one for "GET" and the next for "POST".
|
||||
endpointsHandler.ValidateRequestCount(t, 2)
|
||||
endpointsHandler.ValidateRequest(t, testapi.ResourcePath("endpoints", ns, ""), "POST", &data)
|
||||
}
|
||||
|
||||
func TestSyncEndpointsItemsPreexistingLabelsChange(t *testing.T) {
|
||||
ns := "bar"
|
||||
testServer, endpointsHandler := makeTestServer(t, ns,
|
||||
serverResponse{http.StatusOK, &api.Endpoints{
|
||||
ObjectMeta: api.ObjectMeta{
|
||||
Name: "foo",
|
||||
Namespace: ns,
|
||||
ResourceVersion: "1",
|
||||
Labels: map[string]string{
|
||||
"foo": "bar",
|
||||
},
|
||||
},
|
||||
Subsets: []api.EndpointSubset{{
|
||||
Addresses: []api.EndpointAddress{{IP: "6.7.8.9"}},
|
||||
Ports: []api.EndpointPort{{Port: 1000}},
|
||||
}},
|
||||
}})
|
||||
defer testServer.Close()
|
||||
client := client.NewOrDie(&client.Config{Host: testServer.URL, Version: testapi.Version()})
|
||||
endpoints := NewEndpointController(client)
|
||||
addPods(endpoints.podStore.Store, ns, 1, 1)
|
||||
serviceLabels := map[string]string{"baz": "blah"}
|
||||
endpoints.serviceStore.Store.Add(&api.Service{
|
||||
ObjectMeta: api.ObjectMeta{
|
||||
Name: "foo",
|
||||
Namespace: ns,
|
||||
Labels: serviceLabels,
|
||||
},
|
||||
Spec: api.ServiceSpec{
|
||||
Selector: map[string]string{"foo": "bar"},
|
||||
Ports: []api.ServicePort{{Port: 80, Protocol: "TCP", TargetPort: util.NewIntOrStringFromInt(8080)}},
|
||||
},
|
||||
})
|
||||
endpoints.syncService(ns + "/foo")
|
||||
data := runtime.EncodeOrDie(testapi.Codec(), &api.Endpoints{
|
||||
ObjectMeta: api.ObjectMeta{
|
||||
Name: "foo",
|
||||
Namespace: ns,
|
||||
ResourceVersion: "1",
|
||||
Labels: serviceLabels,
|
||||
},
|
||||
Subsets: []api.EndpointSubset{{
|
||||
Addresses: []api.EndpointAddress{{IP: "1.2.3.4", TargetRef: &api.ObjectReference{Kind: "Pod", Name: "pod0", Namespace: ns}}},
|
||||
Ports: []api.EndpointPort{{Port: 8080, Protocol: "TCP"}},
|
||||
}},
|
||||
})
|
||||
endpointsHandler.ValidateRequest(t, testapi.ResourcePath("endpoints", ns, "foo"), "PUT", &data)
|
||||
}
|
||||
Reference in New Issue
Block a user