252 lines
8.0 KiB
Go
252 lines
8.0 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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"testing"
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"time"
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v1 "k8s.io/api/core/v1"
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discoveryv1 "k8s.io/api/discovery/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/apimachinery/pkg/util/wait"
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"k8s.io/apimachinery/pkg/watch"
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"k8s.io/client-go/informers"
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"k8s.io/client-go/kubernetes/fake"
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ktesting "k8s.io/client-go/testing"
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utilpointer "k8s.io/utils/pointer"
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)
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func TestNewServicesSourceApi_UpdatesAndMultipleServices(t *testing.T) {
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service1v1 := &v1.Service{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "s1"},
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Spec: v1.ServiceSpec{Ports: []v1.ServicePort{{Protocol: "TCP", Port: 10}}}}
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service1v2 := &v1.Service{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "s1"},
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Spec: v1.ServiceSpec{Ports: []v1.ServicePort{{Protocol: "TCP", Port: 20}}}}
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service2 := &v1.Service{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "s2"},
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Spec: v1.ServiceSpec{Ports: []v1.ServicePort{{Protocol: "TCP", Port: 30}}}}
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// Setup fake api client.
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client := fake.NewSimpleClientset()
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fakeWatch := watch.NewFake()
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client.PrependWatchReactor("services", ktesting.DefaultWatchReactor(fakeWatch, nil))
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stopCh := make(chan struct{})
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defer close(stopCh)
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handler := NewServiceHandlerMock()
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sharedInformers := informers.NewSharedInformerFactory(client, time.Minute)
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serviceConfig := NewServiceConfig(sharedInformers.Core().V1().Services(), time.Minute)
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serviceConfig.RegisterEventHandler(handler)
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go sharedInformers.Start(stopCh)
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go serviceConfig.Run(stopCh)
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// Add the first service
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fakeWatch.Add(service1v1)
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handler.ValidateServices(t, []*v1.Service{service1v1})
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// Add another service
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fakeWatch.Add(service2)
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handler.ValidateServices(t, []*v1.Service{service1v1, service2})
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// Modify service1
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fakeWatch.Modify(service1v2)
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handler.ValidateServices(t, []*v1.Service{service1v2, service2})
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// Delete service1
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fakeWatch.Delete(service1v2)
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handler.ValidateServices(t, []*v1.Service{service2})
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// Delete service2
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fakeWatch.Delete(service2)
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handler.ValidateServices(t, []*v1.Service{})
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}
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func TestNewEndpointsSourceApi_UpdatesAndMultipleEndpoints(t *testing.T) {
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tcp := v1.ProtocolTCP
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endpoints1v1 := &discoveryv1.EndpointSlice{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "e1"},
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AddressType: discoveryv1.AddressTypeIPv4,
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Endpoints: []discoveryv1.Endpoint{{
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Addresses: []string{
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"1.2.3.4",
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},
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}},
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Ports: []discoveryv1.EndpointPort{{
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Port: utilpointer.Int32(8080),
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Protocol: &tcp,
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}},
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}
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endpoints1v2 := &discoveryv1.EndpointSlice{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "e1"},
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AddressType: discoveryv1.AddressTypeIPv4,
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Endpoints: []discoveryv1.Endpoint{{
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Addresses: []string{
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"1.2.3.4",
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"4.3.2.1",
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},
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}},
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Ports: []discoveryv1.EndpointPort{{
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Port: utilpointer.Int32(8080),
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Protocol: &tcp,
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}},
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}
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endpoints2 := &discoveryv1.EndpointSlice{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "e2"},
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AddressType: discoveryv1.AddressTypeIPv4,
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Endpoints: []discoveryv1.Endpoint{{
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Addresses: []string{
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"5.6.7.8",
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},
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}},
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Ports: []discoveryv1.EndpointPort{{
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Port: utilpointer.Int32(8080),
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Protocol: &tcp,
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}},
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}
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// Setup fake api client.
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client := fake.NewSimpleClientset()
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fakeWatch := watch.NewFake()
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client.PrependWatchReactor("endpointslices", ktesting.DefaultWatchReactor(fakeWatch, nil))
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stopCh := make(chan struct{})
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defer close(stopCh)
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handler := NewEndpointSliceHandlerMock()
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sharedInformers := informers.NewSharedInformerFactory(client, time.Minute)
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endpointsliceConfig := NewEndpointSliceConfig(sharedInformers.Discovery().V1().EndpointSlices(), time.Minute)
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endpointsliceConfig.RegisterEventHandler(handler)
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go sharedInformers.Start(stopCh)
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go endpointsliceConfig.Run(stopCh)
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// Add the first endpoints
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fakeWatch.Add(endpoints1v1)
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handler.ValidateEndpointSlices(t, []*discoveryv1.EndpointSlice{endpoints1v1})
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// Add another endpoints
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fakeWatch.Add(endpoints2)
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handler.ValidateEndpointSlices(t, []*discoveryv1.EndpointSlice{endpoints1v1, endpoints2})
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// Modify endpoints1
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fakeWatch.Modify(endpoints1v2)
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handler.ValidateEndpointSlices(t, []*discoveryv1.EndpointSlice{endpoints1v2, endpoints2})
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// Delete endpoints1
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fakeWatch.Delete(endpoints1v2)
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handler.ValidateEndpointSlices(t, []*discoveryv1.EndpointSlice{endpoints2})
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// Delete endpoints2
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fakeWatch.Delete(endpoints2)
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handler.ValidateEndpointSlices(t, []*discoveryv1.EndpointSlice{})
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}
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func TestInitialSync(t *testing.T) {
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svc1 := &v1.Service{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "foo"},
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Spec: v1.ServiceSpec{Ports: []v1.ServicePort{{Protocol: "TCP", Port: 10}}},
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}
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svc2 := &v1.Service{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "bar"},
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Spec: v1.ServiceSpec{Ports: []v1.ServicePort{{Protocol: "TCP", Port: 10}}},
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}
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eps1 := &discoveryv1.EndpointSlice{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "foo"},
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}
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eps2 := &discoveryv1.EndpointSlice{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "bar"},
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}
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expectedSvcState := map[types.NamespacedName]*v1.Service{
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{Name: svc1.Name, Namespace: svc1.Namespace}: svc1,
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{Name: svc2.Name, Namespace: svc2.Namespace}: svc2,
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}
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expectedEpsState := map[types.NamespacedName]*discoveryv1.EndpointSlice{
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{Name: eps1.Name, Namespace: eps1.Namespace}: eps1,
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{Name: eps2.Name, Namespace: eps2.Namespace}: eps2,
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}
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// Setup fake api client.
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client := fake.NewSimpleClientset(svc1, svc2, eps2, eps1)
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sharedInformers := informers.NewSharedInformerFactory(client, 0)
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svcConfig := NewServiceConfig(sharedInformers.Core().V1().Services(), 0)
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svcHandler := NewServiceHandlerMock()
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svcConfig.RegisterEventHandler(svcHandler)
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epsConfig := NewEndpointSliceConfig(sharedInformers.Discovery().V1().EndpointSlices(), 0)
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epsHandler := NewEndpointSliceHandlerMock()
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epsConfig.RegisterEventHandler(epsHandler)
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stopCh := make(chan struct{})
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defer close(stopCh)
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sharedInformers.Start(stopCh)
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err := wait.PollImmediate(time.Millisecond*10, wait.ForeverTestTimeout, func() (bool, error) {
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svcHandler.lock.Lock()
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defer svcHandler.lock.Unlock()
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if reflect.DeepEqual(svcHandler.state, expectedSvcState) {
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return true, nil
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}
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return false, nil
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})
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if err != nil {
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t.Fatal("Timed out waiting for the completion of handler `OnServiceAdd`")
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}
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err = wait.PollImmediate(time.Millisecond*10, wait.ForeverTestTimeout, func() (bool, error) {
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epsHandler.lock.Lock()
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defer epsHandler.lock.Unlock()
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if reflect.DeepEqual(epsHandler.state, expectedEpsState) {
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return true, nil
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}
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return false, nil
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})
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if err != nil {
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t.Fatal("Timed out waiting for the completion of handler `OnEndpointsAdd`")
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}
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svcConfig.Run(stopCh)
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epsConfig.Run(stopCh)
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gotSvc := <-svcHandler.updated
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gotSvcState := make(map[types.NamespacedName]*v1.Service, len(gotSvc))
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for _, svc := range gotSvc {
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gotSvcState[types.NamespacedName{Namespace: svc.Namespace, Name: svc.Name}] = svc
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}
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if !reflect.DeepEqual(gotSvcState, expectedSvcState) {
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t.Fatalf("Expected service state: %v\nGot: %v\n", expectedSvcState, gotSvcState)
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}
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gotEps := <-epsHandler.updated
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gotEpsState := make(map[types.NamespacedName]*discoveryv1.EndpointSlice, len(gotEps))
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for _, eps := range gotEps {
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gotEpsState[types.NamespacedName{Namespace: eps.Namespace, Name: eps.Name}] = eps
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}
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if !reflect.DeepEqual(gotEpsState, expectedEpsState) {
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t.Fatalf("Expected endpoints state: %v\nGot: %v\n", expectedEpsState, gotEpsState)
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}
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}
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