344 lines
12 KiB
Go
344 lines
12 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_test
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import (
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"reflect"
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"sort"
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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/util/wait"
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"k8s.io/kubernetes/pkg/api"
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. "k8s.io/kubernetes/pkg/proxy/config"
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)
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const TomcatPort int = 8080
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const TomcatName = "tomcat"
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var TomcatEndpoints = map[string]string{"c0": "1.1.1.1:18080", "c1": "2.2.2.2:18081"}
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const MysqlPort int = 3306
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const MysqlName = "mysql"
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var MysqlEndpoints = map[string]string{"c0": "1.1.1.1:13306", "c3": "2.2.2.2:13306"}
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type sortedServices []api.Service
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func (s sortedServices) Len() int {
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return len(s)
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}
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func (s sortedServices) Swap(i, j int) {
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s[i], s[j] = s[j], s[i]
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}
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func (s sortedServices) Less(i, j int) bool {
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return s[i].Name < s[j].Name
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}
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type ServiceHandlerMock struct {
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updated chan []api.Service
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waits int
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}
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func NewServiceHandlerMock() *ServiceHandlerMock {
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return &ServiceHandlerMock{updated: make(chan []api.Service, 5)}
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}
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func (h *ServiceHandlerMock) OnServiceUpdate(services []api.Service) {
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sort.Sort(sortedServices(services))
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h.updated <- services
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}
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func (h *ServiceHandlerMock) ValidateServices(t *testing.T, expectedServices []api.Service) {
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// We might get 1 or more updates for N service updates, because we
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// over write older snapshots of services from the producer go-routine
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// if the consumer falls behind.
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var services []api.Service
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for {
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select {
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case services = <-h.updated:
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if reflect.DeepEqual(services, expectedServices) {
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return
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}
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// Unittests will hard timeout in 5m with a stack trace, prevent that
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// and surface a clearer reason for failure.
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case <-time.After(wait.ForeverTestTimeout):
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t.Errorf("Timed out. Expected %#v, Got %#v", expectedServices, services)
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return
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}
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}
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}
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type sortedEndpoints []api.Endpoints
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func (s sortedEndpoints) Len() int {
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return len(s)
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}
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func (s sortedEndpoints) Swap(i, j int) {
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s[i], s[j] = s[j], s[i]
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}
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func (s sortedEndpoints) Less(i, j int) bool {
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return s[i].Name < s[j].Name
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}
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type EndpointsHandlerMock struct {
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updated chan []api.Endpoints
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waits int
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}
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func NewEndpointsHandlerMock() *EndpointsHandlerMock {
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return &EndpointsHandlerMock{updated: make(chan []api.Endpoints, 5)}
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}
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func (h *EndpointsHandlerMock) OnEndpointsUpdate(endpoints []api.Endpoints) {
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sort.Sort(sortedEndpoints(endpoints))
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h.updated <- endpoints
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}
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func (h *EndpointsHandlerMock) ValidateEndpoints(t *testing.T, expectedEndpoints []api.Endpoints) {
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// We might get 1 or more updates for N endpoint updates, because we
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// over write older snapshots of endpoints from the producer go-routine
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// if the consumer falls behind. Unittests will hard timeout in 5m.
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var endpoints []api.Endpoints
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for {
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select {
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case endpoints = <-h.updated:
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if reflect.DeepEqual(endpoints, expectedEndpoints) {
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return
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}
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// Unittests will hard timeout in 5m with a stack trace, prevent that
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// and surface a clearer reason for failure.
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case <-time.After(wait.ForeverTestTimeout):
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t.Errorf("Timed out. Expected %#v, Got %#v", expectedEndpoints, endpoints)
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return
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}
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}
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}
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func CreateServiceUpdate(op Operation, services ...api.Service) ServiceUpdate {
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ret := ServiceUpdate{Op: op}
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ret.Services = make([]api.Service, len(services))
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for i, value := range services {
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ret.Services[i] = value
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}
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return ret
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}
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func CreateEndpointsUpdate(op Operation, endpoints ...api.Endpoints) EndpointsUpdate {
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ret := EndpointsUpdate{Op: op}
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ret.Endpoints = make([]api.Endpoints, len(endpoints))
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for i, value := range endpoints {
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ret.Endpoints[i] = value
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}
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return ret
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}
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func TestNewServiceAddedAndNotified(t *testing.T) {
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config := NewServiceConfig()
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channel := config.Channel("one")
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handler := NewServiceHandlerMock()
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config.RegisterHandler(handler)
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serviceUpdate := CreateServiceUpdate(ADD, 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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channel <- serviceUpdate
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handler.ValidateServices(t, serviceUpdate.Services)
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}
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func TestServiceAddedRemovedSetAndNotified(t *testing.T) {
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config := NewServiceConfig()
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channel := config.Channel("one")
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handler := NewServiceHandlerMock()
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config.RegisterHandler(handler)
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serviceUpdate := CreateServiceUpdate(ADD, 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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channel <- serviceUpdate
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handler.ValidateServices(t, serviceUpdate.Services)
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serviceUpdate2 := CreateServiceUpdate(ADD, 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: 20}}},
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})
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channel <- serviceUpdate2
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services := []api.Service{serviceUpdate2.Services[0], serviceUpdate.Services[0]}
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handler.ValidateServices(t, services)
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serviceUpdate3 := CreateServiceUpdate(REMOVE, api.Service{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "foo"},
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})
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channel <- serviceUpdate3
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services = []api.Service{serviceUpdate2.Services[0]}
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handler.ValidateServices(t, services)
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serviceUpdate4 := CreateServiceUpdate(SET, api.Service{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "foobar"},
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Spec: api.ServiceSpec{Ports: []api.ServicePort{{Protocol: "TCP", Port: 99}}},
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})
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channel <- serviceUpdate4
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services = []api.Service{serviceUpdate4.Services[0]}
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handler.ValidateServices(t, services)
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}
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func TestNewMultipleSourcesServicesAddedAndNotified(t *testing.T) {
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config := NewServiceConfig()
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channelOne := config.Channel("one")
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channelTwo := config.Channel("two")
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if channelOne == channelTwo {
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t.Error("Same channel handed back for one and two")
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}
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handler := NewServiceHandlerMock()
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config.RegisterHandler(handler)
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serviceUpdate1 := CreateServiceUpdate(ADD, 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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serviceUpdate2 := CreateServiceUpdate(ADD, 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: 20}}},
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})
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channelOne <- serviceUpdate1
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channelTwo <- serviceUpdate2
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services := []api.Service{serviceUpdate2.Services[0], serviceUpdate1.Services[0]}
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handler.ValidateServices(t, services)
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}
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func TestNewMultipleSourcesServicesMultipleHandlersAddedAndNotified(t *testing.T) {
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config := NewServiceConfig()
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channelOne := config.Channel("one")
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channelTwo := config.Channel("two")
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handler := NewServiceHandlerMock()
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handler2 := NewServiceHandlerMock()
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config.RegisterHandler(handler)
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config.RegisterHandler(handler2)
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serviceUpdate1 := CreateServiceUpdate(ADD, 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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serviceUpdate2 := CreateServiceUpdate(ADD, 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: 20}}},
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})
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channelOne <- serviceUpdate1
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channelTwo <- serviceUpdate2
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services := []api.Service{serviceUpdate2.Services[0], serviceUpdate1.Services[0]}
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handler.ValidateServices(t, services)
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handler2.ValidateServices(t, services)
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}
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func TestNewMultipleSourcesEndpointsMultipleHandlersAddedAndNotified(t *testing.T) {
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config := NewEndpointsConfig()
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channelOne := config.Channel("one")
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channelTwo := config.Channel("two")
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handler := NewEndpointsHandlerMock()
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handler2 := NewEndpointsHandlerMock()
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config.RegisterHandler(handler)
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config.RegisterHandler(handler2)
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endpointsUpdate1 := CreateEndpointsUpdate(ADD, api.Endpoints{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "foo"},
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Subsets: []api.EndpointSubset{{
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Addresses: []api.EndpointAddress{{IP: "1.1.1.1"}, {IP: "2.2.2.2"}},
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Ports: []api.EndpointPort{{Port: 80}},
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}},
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})
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endpointsUpdate2 := CreateEndpointsUpdate(ADD, api.Endpoints{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "bar"},
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Subsets: []api.EndpointSubset{{
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Addresses: []api.EndpointAddress{{IP: "3.3.3.3"}, {IP: "4.4.4.4"}},
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Ports: []api.EndpointPort{{Port: 80}},
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}},
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})
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channelOne <- endpointsUpdate1
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channelTwo <- endpointsUpdate2
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endpoints := []api.Endpoints{endpointsUpdate2.Endpoints[0], endpointsUpdate1.Endpoints[0]}
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handler.ValidateEndpoints(t, endpoints)
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handler2.ValidateEndpoints(t, endpoints)
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}
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func TestNewMultipleSourcesEndpointsMultipleHandlersAddRemoveSetAndNotified(t *testing.T) {
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config := NewEndpointsConfig()
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channelOne := config.Channel("one")
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channelTwo := config.Channel("two")
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handler := NewEndpointsHandlerMock()
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handler2 := NewEndpointsHandlerMock()
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config.RegisterHandler(handler)
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config.RegisterHandler(handler2)
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endpointsUpdate1 := CreateEndpointsUpdate(ADD, api.Endpoints{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "foo"},
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Subsets: []api.EndpointSubset{{
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Addresses: []api.EndpointAddress{{IP: "1.1.1.1"}, {IP: "2.2.2.2"}},
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Ports: []api.EndpointPort{{Port: 80}},
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}},
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})
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endpointsUpdate2 := CreateEndpointsUpdate(ADD, api.Endpoints{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "bar"},
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Subsets: []api.EndpointSubset{{
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Addresses: []api.EndpointAddress{{IP: "3.3.3.3"}, {IP: "4.4.4.4"}},
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Ports: []api.EndpointPort{{Port: 80}},
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}},
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})
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channelOne <- endpointsUpdate1
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channelTwo <- endpointsUpdate2
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endpoints := []api.Endpoints{endpointsUpdate2.Endpoints[0], endpointsUpdate1.Endpoints[0]}
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handler.ValidateEndpoints(t, endpoints)
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handler2.ValidateEndpoints(t, endpoints)
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// Add one more
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endpointsUpdate3 := CreateEndpointsUpdate(ADD, api.Endpoints{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "foobar"},
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Subsets: []api.EndpointSubset{{
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Addresses: []api.EndpointAddress{{IP: "5.5.5.5"}, {IP: "6.6.6.6"}},
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Ports: []api.EndpointPort{{Port: 80}},
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}},
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})
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channelTwo <- endpointsUpdate3
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endpoints = []api.Endpoints{endpointsUpdate2.Endpoints[0], endpointsUpdate1.Endpoints[0], endpointsUpdate3.Endpoints[0]}
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handler.ValidateEndpoints(t, endpoints)
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handler2.ValidateEndpoints(t, endpoints)
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// Update the "foo" service with new endpoints
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endpointsUpdate1 = CreateEndpointsUpdate(ADD, api.Endpoints{
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ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "foo"},
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Subsets: []api.EndpointSubset{{
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Addresses: []api.EndpointAddress{{IP: "7.7.7.7"}},
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Ports: []api.EndpointPort{{Port: 80}},
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}},
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})
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channelOne <- endpointsUpdate1
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endpoints = []api.Endpoints{endpointsUpdate2.Endpoints[0], endpointsUpdate1.Endpoints[0], endpointsUpdate3.Endpoints[0]}
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handler.ValidateEndpoints(t, endpoints)
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handler2.ValidateEndpoints(t, endpoints)
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// Remove "bar" service
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endpointsUpdate2 = CreateEndpointsUpdate(REMOVE, api.Endpoints{ObjectMeta: metav1.ObjectMeta{Namespace: "testnamespace", Name: "bar"}})
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channelTwo <- endpointsUpdate2
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endpoints = []api.Endpoints{endpointsUpdate1.Endpoints[0], endpointsUpdate3.Endpoints[0]}
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handler.ValidateEndpoints(t, endpoints)
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handler2.ValidateEndpoints(t, endpoints)
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}
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// TODO: Add a unittest for interrupts getting processed in a timely manner.
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// Currently this module has a circular dependency with config, and so it's
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// named config_test, which means even test methods need to be public. This
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// is refactoring that we can avoid by resolving the dependency.
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