mirror of https://github.com/k3s-io/k3s
256 lines
6.9 KiB
Go
256 lines
6.9 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors.
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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 config
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import (
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"reflect"
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"sort"
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"sync"
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"testing"
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"time"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/watch"
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"k8s.io/client-go/tools/cache"
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"k8s.io/kubernetes/pkg/api"
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)
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type fakeLW struct {
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listResp runtime.Object
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watchResp watch.Interface
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}
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func (lw fakeLW) List(options metav1.ListOptions) (runtime.Object, error) {
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return lw.listResp, nil
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}
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func (lw fakeLW) Watch(options metav1.ListOptions) (watch.Interface, error) {
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return lw.watchResp, nil
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}
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var _ cache.ListerWatcher = fakeLW{}
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func TestNewServicesSourceApi_UpdatesAndMultipleServices(t *testing.T) {
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service1v1 := &api.Service{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "s1"},
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Spec: api.ServiceSpec{Ports: []api.ServicePort{{Protocol: "TCP", Port: 10}}}}
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service1v2 := &api.Service{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "s1"},
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Spec: api.ServiceSpec{Ports: []api.ServicePort{{Protocol: "TCP", Port: 20}}}}
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service2 := &api.Service{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "s2"},
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Spec: api.ServiceSpec{Ports: []api.ServicePort{{Protocol: "TCP", Port: 30}}}}
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// Setup fake api client.
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fakeWatch := watch.NewFake()
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lw := fakeLW{
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listResp: &api.ServiceList{Items: []api.Service{}},
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watchResp: fakeWatch,
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}
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stopCh := make(chan struct{})
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defer close(stopCh)
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ch := make(chan struct{})
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handler := newSvcHandler(t, nil, func() { ch <- struct{}{} })
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serviceConfig := newServiceConfig(lw, time.Minute)
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serviceConfig.RegisterHandler(handler)
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go serviceConfig.Run(stopCh)
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// Add the first service
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handler.expected = []*api.Service{service1v1}
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fakeWatch.Add(service1v1)
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<-ch
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// Add another service
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handler.expected = []*api.Service{service1v1, service2}
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fakeWatch.Add(service2)
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<-ch
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// Modify service1
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handler.expected = []*api.Service{service1v2, service2}
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fakeWatch.Modify(service1v2)
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<-ch
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// Delete service1
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handler.expected = []*api.Service{service2}
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fakeWatch.Delete(service1v2)
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<-ch
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// Delete service2
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handler.expected = []*api.Service{}
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fakeWatch.Delete(service2)
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<-ch
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}
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func TestNewEndpointsSourceApi_UpdatesAndMultipleEndpoints(t *testing.T) {
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endpoints1v1 := &api.Endpoints{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "e1"},
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Subsets: []api.EndpointSubset{{
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Addresses: []api.EndpointAddress{
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{IP: "1.2.3.4"},
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},
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Ports: []api.EndpointPort{{Port: 8080, Protocol: "TCP"}},
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}},
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}
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endpoints1v2 := &api.Endpoints{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "e1"},
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Subsets: []api.EndpointSubset{{
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Addresses: []api.EndpointAddress{
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{IP: "1.2.3.4"},
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{IP: "4.3.2.1"},
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},
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Ports: []api.EndpointPort{{Port: 8080, Protocol: "TCP"}},
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}},
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}
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endpoints2 := &api.Endpoints{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "e2"},
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Subsets: []api.EndpointSubset{{
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Addresses: []api.EndpointAddress{
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{IP: "5.6.7.8"},
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},
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Ports: []api.EndpointPort{{Port: 80, Protocol: "TCP"}},
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}},
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}
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// Setup fake api client.
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fakeWatch := watch.NewFake()
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lw := fakeLW{
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listResp: &api.EndpointsList{Items: []api.Endpoints{}},
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watchResp: fakeWatch,
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}
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stopCh := make(chan struct{})
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defer close(stopCh)
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ch := make(chan struct{})
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handler := newEpsHandler(t, nil, func() { ch <- struct{}{} })
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endpointsConfig := newEndpointsConfig(lw, time.Minute)
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endpointsConfig.RegisterHandler(handler)
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go endpointsConfig.Run(stopCh)
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// Add the first endpoints
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handler.expected = []*api.Endpoints{endpoints1v1}
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fakeWatch.Add(endpoints1v1)
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<-ch
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// Add another endpoints
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handler.expected = []*api.Endpoints{endpoints1v1, endpoints2}
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fakeWatch.Add(endpoints2)
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<-ch
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// Modify endpoints1
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handler.expected = []*api.Endpoints{endpoints1v2, endpoints2}
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fakeWatch.Modify(endpoints1v2)
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<-ch
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// Delete endpoints1
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handler.expected = []*api.Endpoints{endpoints2}
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fakeWatch.Delete(endpoints1v2)
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<-ch
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// Delete endpoints2
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handler.expected = []*api.Endpoints{}
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fakeWatch.Delete(endpoints2)
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<-ch
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}
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type svcHandler struct {
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t *testing.T
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expected []*api.Service
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done func()
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}
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func newSvcHandler(t *testing.T, svcs []*api.Service, done func()) *svcHandler {
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return &svcHandler{t: t, expected: svcs, done: done}
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}
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func (s *svcHandler) OnServiceUpdate(services []*api.Service) {
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defer s.done()
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sort.Sort(sortedServices(services))
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if !reflect.DeepEqual(s.expected, services) {
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s.t.Errorf("Unexpected services: %#v, expected: %#v", services, s.expected)
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}
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}
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type epsHandler struct {
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t *testing.T
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expected []*api.Endpoints
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done func()
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}
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func newEpsHandler(t *testing.T, eps []*api.Endpoints, done func()) *epsHandler {
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return &epsHandler{t: t, expected: eps, done: done}
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}
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func (e *epsHandler) OnEndpointsUpdate(endpoints []*api.Endpoints) {
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defer e.done()
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sort.Sort(sortedEndpoints(endpoints))
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if !reflect.DeepEqual(e.expected, endpoints) {
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e.t.Errorf("Unexpected endpoints: %#v, expected: %#v", endpoints, e.expected)
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}
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}
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func TestInitialSync(t *testing.T) {
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svc1 := &api.Service{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "foo"},
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Spec: api.ServiceSpec{Ports: []api.ServicePort{{Protocol: "TCP", Port: 10}}},
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}
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svc2 := &api.Service{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "bar"},
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Spec: api.ServiceSpec{Ports: []api.ServicePort{{Protocol: "TCP", Port: 10}}},
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}
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eps1 := &api.Endpoints{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "foo"},
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}
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eps2 := &api.Endpoints{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "bar"},
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}
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var wg sync.WaitGroup
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// Wait for both services and endpoints handler.
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wg.Add(2)
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// Setup fake api client.
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fakeSvcWatch := watch.NewFake()
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svcLW := fakeLW{
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listResp: &api.ServiceList{Items: []api.Service{*svc1, *svc2}},
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watchResp: fakeSvcWatch,
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}
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fakeEpsWatch := watch.NewFake()
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epsLW := fakeLW{
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listResp: &api.EndpointsList{Items: []api.Endpoints{*eps2, *eps1}},
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watchResp: fakeEpsWatch,
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}
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svcConfig := newServiceConfig(svcLW, time.Minute)
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epsConfig := newEndpointsConfig(epsLW, time.Minute)
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svcHandler := newSvcHandler(t, []*api.Service{svc2, svc1}, wg.Done)
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svcConfig.RegisterHandler(svcHandler)
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epsHandler := newEpsHandler(t, []*api.Endpoints{eps2, eps1}, wg.Done)
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epsConfig.RegisterHandler(epsHandler)
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stopCh := make(chan struct{})
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defer close(stopCh)
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go svcConfig.Run(stopCh)
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go epsConfig.Run(stopCh)
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wg.Wait()
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}
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