450 lines
18 KiB
Go
450 lines
18 KiB
Go
/*
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Copyright 2017 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 reconcilers
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/*
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Original Source:
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https://github.com/openshift/origin/blob/bb340c5dd5ff72718be86fb194dedc0faed7f4c7/pkg/cmd/server/election/lease_endpoint_reconciler_test.go
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*/
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import (
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"testing"
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corev1 "k8s.io/api/core/v1"
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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/client-go/kubernetes/fake"
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netutils "k8s.io/utils/net"
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)
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type fakeLeases struct {
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keys map[string]bool
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}
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var _ Leases = &fakeLeases{}
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func newFakeLeases() *fakeLeases {
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return &fakeLeases{make(map[string]bool)}
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}
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func (f *fakeLeases) ListLeases() ([]string, error) {
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res := make([]string, 0, len(f.keys))
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for ip := range f.keys {
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res = append(res, ip)
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}
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return res, nil
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}
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func (f *fakeLeases) UpdateLease(ip string) error {
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f.keys[ip] = true
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return nil
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}
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func (f *fakeLeases) RemoveLease(ip string) error {
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delete(f.keys, ip)
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return nil
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}
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func (f *fakeLeases) SetKeys(keys []string) {
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for _, ip := range keys {
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f.keys[ip] = false
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}
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}
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func (f *fakeLeases) GetUpdatedKeys() []string {
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res := []string{}
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for ip, updated := range f.keys {
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if updated {
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res = append(res, ip)
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}
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}
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return res
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}
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func (f *fakeLeases) Destroy() {
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}
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func TestLeaseEndpointReconciler(t *testing.T) {
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reconcileTests := []struct {
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testName string
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serviceName string
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ip string
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endpointPorts []corev1.EndpointPort
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endpointKeys []string
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initialState []runtime.Object
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expectUpdate []runtime.Object
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expectCreate []runtime.Object
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}{
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{
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testName: "no existing endpoints",
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serviceName: "foo",
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ip: "1.2.3.4",
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endpointPorts: []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}},
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initialState: nil,
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expectCreate: makeEndpointsArray("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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},
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{
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testName: "existing endpoints satisfy",
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serviceName: "foo",
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ip: "1.2.3.4",
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endpointPorts: []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}},
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initialState: makeEndpointsArray("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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},
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{
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testName: "existing endpoints satisfy, no endpointslice",
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serviceName: "foo",
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ip: "1.2.3.4",
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endpointPorts: []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}},
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initialState: []runtime.Object{
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makeEndpoints("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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},
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expectCreate: []runtime.Object{
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makeEndpointSlice("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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},
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},
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{
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testName: "existing endpointslice satisfies, no endpoints",
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serviceName: "foo",
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ip: "1.2.3.4",
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endpointPorts: []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}},
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initialState: []runtime.Object{
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makeEndpointSlice("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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},
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expectCreate: []runtime.Object{
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makeEndpoints("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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},
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},
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{
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testName: "existing endpoints satisfy, endpointslice is wrong",
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serviceName: "foo",
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ip: "1.2.3.4",
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endpointPorts: []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}},
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initialState: []runtime.Object{
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makeEndpoints("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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makeEndpointSlice("foo", []string{"4.3.2.1"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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},
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expectUpdate: []runtime.Object{
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makeEndpointSlice("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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},
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},
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{
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testName: "existing endpointslice satisfies, endpoints is wrong",
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serviceName: "foo",
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ip: "1.2.3.4",
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endpointPorts: []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}},
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initialState: []runtime.Object{
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makeEndpoints("foo", []string{"4.3.2.1"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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makeEndpointSlice("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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},
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expectUpdate: []runtime.Object{
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makeEndpoints("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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},
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},
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{
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testName: "existing endpoints satisfy + refresh existing key",
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serviceName: "foo",
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ip: "1.2.3.4",
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endpointPorts: []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}},
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endpointKeys: []string{"1.2.3.4"},
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initialState: makeEndpointsArray("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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},
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{
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testName: "existing endpoints satisfy but too many",
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serviceName: "foo",
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ip: "1.2.3.4",
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endpointPorts: []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}},
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initialState: makeEndpointsArray("foo", []string{"1.2.3.4", "4.3.2.1"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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expectUpdate: makeEndpointsArray("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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},
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{
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testName: "existing endpoints satisfy but too many + extra masters",
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serviceName: "foo",
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ip: "1.2.3.4",
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endpointPorts: []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}},
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endpointKeys: []string{"1.2.3.4", "4.3.2.2", "4.3.2.3", "4.3.2.4"},
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initialState: makeEndpointsArray("foo", []string{"1.2.3.4", "4.3.2.1", "4.3.2.2", "4.3.2.3", "4.3.2.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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expectUpdate: makeEndpointsArray("foo", []string{"1.2.3.4", "4.3.2.2", "4.3.2.3", "4.3.2.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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},
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{
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testName: "existing endpoints satisfy but too many + extra masters + delete first",
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serviceName: "foo",
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ip: "4.3.2.4",
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endpointPorts: []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}},
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endpointKeys: []string{"4.3.2.1", "4.3.2.2", "4.3.2.3", "4.3.2.4"},
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initialState: makeEndpointsArray("foo", []string{"1.2.3.4", "4.3.2.1", "4.3.2.2", "4.3.2.3", "4.3.2.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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expectUpdate: makeEndpointsArray("foo", []string{"4.3.2.1", "4.3.2.2", "4.3.2.3", "4.3.2.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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},
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{
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testName: "existing endpoints current IP missing",
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serviceName: "foo",
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ip: "4.3.2.2",
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endpointPorts: []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}},
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endpointKeys: []string{"4.3.2.1"},
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initialState: makeEndpointsArray("foo", []string{"4.3.2.1"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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expectUpdate: makeEndpointsArray("foo", []string{"4.3.2.1", "4.3.2.2"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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},
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{
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testName: "existing endpoints wrong name",
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serviceName: "foo",
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ip: "1.2.3.4",
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endpointPorts: []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}},
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initialState: makeEndpointsArray("bar", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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expectCreate: makeEndpointsArray("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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},
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{
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testName: "existing endpoints wrong IP",
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serviceName: "foo",
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ip: "1.2.3.4",
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endpointPorts: []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}},
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initialState: makeEndpointsArray("foo", []string{"4.3.2.1"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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expectUpdate: makeEndpointsArray("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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},
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{
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testName: "existing endpoints wrong port",
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serviceName: "foo",
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ip: "1.2.3.4",
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endpointPorts: []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}},
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initialState: makeEndpointsArray("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 9090, Protocol: "TCP"}}),
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expectUpdate: makeEndpointsArray("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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},
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{
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testName: "existing endpoints wrong protocol",
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serviceName: "foo",
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ip: "1.2.3.4",
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endpointPorts: []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}},
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initialState: makeEndpointsArray("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "UDP"}}),
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expectUpdate: makeEndpointsArray("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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},
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{
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testName: "existing endpoints wrong port name",
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serviceName: "foo",
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ip: "1.2.3.4",
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endpointPorts: []corev1.EndpointPort{{Name: "baz", Port: 8080, Protocol: "TCP"}},
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initialState: makeEndpointsArray("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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expectUpdate: makeEndpointsArray("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "baz", Port: 8080, Protocol: "TCP"}}),
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},
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{
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testName: "existing endpoints without skip mirror label",
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serviceName: "foo",
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ip: "1.2.3.4",
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endpointPorts: []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}},
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initialState: []runtime.Object{
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// can't use makeEndpointsArray() here because we don't want the
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// skip-mirror label
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&corev1.Endpoints{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: metav1.NamespaceDefault,
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Name: "foo",
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},
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Subsets: []corev1.EndpointSubset{{
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Addresses: []corev1.EndpointAddress{{IP: "1.2.3.4"}},
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Ports: []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}},
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}},
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},
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makeEndpointSlice("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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},
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expectUpdate: []runtime.Object{
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makeEndpoints("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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// EndpointSlice does not get updated because it was already correct
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},
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},
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{
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testName: "existing endpoints extra service ports satisfy",
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serviceName: "foo",
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ip: "1.2.3.4",
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endpointPorts: []corev1.EndpointPort{
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{Name: "foo", Port: 8080, Protocol: "TCP"},
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{Name: "bar", Port: 1000, Protocol: "TCP"},
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{Name: "baz", Port: 1010, Protocol: "TCP"},
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},
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initialState: makeEndpointsArray("foo", []string{"1.2.3.4"},
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[]corev1.EndpointPort{
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{Name: "foo", Port: 8080, Protocol: "TCP"},
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{Name: "bar", Port: 1000, Protocol: "TCP"},
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{Name: "baz", Port: 1010, Protocol: "TCP"},
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},
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),
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},
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{
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testName: "existing endpoints extra service ports missing port",
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serviceName: "foo",
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ip: "1.2.3.4",
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endpointPorts: []corev1.EndpointPort{
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{Name: "foo", Port: 8080, Protocol: "TCP"},
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{Name: "bar", Port: 1000, Protocol: "TCP"},
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},
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initialState: makeEndpointsArray("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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expectUpdate: makeEndpointsArray("foo", []string{"1.2.3.4"},
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[]corev1.EndpointPort{
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{Name: "foo", Port: 8080, Protocol: "TCP"},
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{Name: "bar", Port: 1000, Protocol: "TCP"},
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},
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),
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},
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}
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for _, test := range reconcileTests {
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t.Run(test.testName, func(t *testing.T) {
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fakeLeases := newFakeLeases()
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fakeLeases.SetKeys(test.endpointKeys)
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clientset := fake.NewSimpleClientset(test.initialState...)
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epAdapter := NewEndpointsAdapter(clientset.CoreV1(), clientset.DiscoveryV1())
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r := NewLeaseEndpointReconciler(epAdapter, fakeLeases)
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err := r.ReconcileEndpoints(test.serviceName, netutils.ParseIPSloppy(test.ip), test.endpointPorts, true)
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if err != nil {
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t.Errorf("unexpected error reconciling: %v", err)
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}
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err = verifyCreatesAndUpdates(clientset, test.expectCreate, test.expectUpdate)
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if err != nil {
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t.Errorf("unexpected error in side effects: %v", err)
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}
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if updatedKeys := fakeLeases.GetUpdatedKeys(); len(updatedKeys) != 1 || updatedKeys[0] != test.ip {
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t.Errorf("expected the master's IP to be refreshed, but the following IPs were refreshed instead: %v", updatedKeys)
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}
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})
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}
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nonReconcileTests := []struct {
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testName string
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serviceName string
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ip string
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endpointPorts []corev1.EndpointPort
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endpointKeys []string
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initialState []runtime.Object
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expectUpdate []runtime.Object
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expectCreate []runtime.Object
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}{
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{
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testName: "existing endpoints extra service ports missing port no update",
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serviceName: "foo",
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ip: "1.2.3.4",
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endpointPorts: []corev1.EndpointPort{
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{Name: "foo", Port: 8080, Protocol: "TCP"},
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{Name: "bar", Port: 1000, Protocol: "TCP"},
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},
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initialState: makeEndpointsArray("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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expectUpdate: nil,
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},
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{
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testName: "existing endpoints extra service ports, wrong ports, wrong IP",
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serviceName: "foo",
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ip: "1.2.3.4",
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endpointPorts: []corev1.EndpointPort{
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{Name: "foo", Port: 8080, Protocol: "TCP"},
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{Name: "bar", Port: 1000, Protocol: "TCP"},
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},
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initialState: makeEndpointsArray("foo", []string{"4.3.2.1"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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expectUpdate: makeEndpointsArray("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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},
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{
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testName: "no existing endpoints",
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serviceName: "foo",
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ip: "1.2.3.4",
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endpointPorts: []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}},
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initialState: nil,
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expectCreate: makeEndpointsArray("foo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
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},
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}
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for _, test := range nonReconcileTests {
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t.Run(test.testName, func(t *testing.T) {
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fakeLeases := newFakeLeases()
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fakeLeases.SetKeys(test.endpointKeys)
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clientset := fake.NewSimpleClientset(test.initialState...)
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epAdapter := NewEndpointsAdapter(clientset.CoreV1(), clientset.DiscoveryV1())
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r := NewLeaseEndpointReconciler(epAdapter, fakeLeases)
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err := r.ReconcileEndpoints(test.serviceName, netutils.ParseIPSloppy(test.ip), test.endpointPorts, false)
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if err != nil {
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t.Errorf("unexpected error reconciling: %v", err)
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}
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err = verifyCreatesAndUpdates(clientset, test.expectCreate, test.expectUpdate)
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if err != nil {
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t.Errorf("unexpected error in side effects: %v", err)
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}
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if updatedKeys := fakeLeases.GetUpdatedKeys(); len(updatedKeys) != 1 || updatedKeys[0] != test.ip {
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t.Errorf("expected the master's IP to be refreshed, but the following IPs were refreshed instead: %v", updatedKeys)
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}
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})
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}
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}
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|
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func TestLeaseRemoveEndpoints(t *testing.T) {
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stopTests := []struct {
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testName string
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serviceName string
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ip string
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endpointPorts []corev1.EndpointPort
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endpointKeys []string
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initialState []runtime.Object
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expectUpdate []runtime.Object
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}{
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{
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testName: "successful stop reconciling",
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serviceName: "foo",
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ip: "1.2.3.4",
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endpointPorts: []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}},
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endpointKeys: []string{"1.2.3.4", "4.3.2.2", "4.3.2.3", "4.3.2.4"},
|
|
initialState: makeEndpointsArray("foo", []string{"1.2.3.4", "4.3.2.2", "4.3.2.3", "4.3.2.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
|
|
expectUpdate: makeEndpointsArray("foo", []string{"4.3.2.2", "4.3.2.3", "4.3.2.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
|
|
},
|
|
{
|
|
testName: "stop reconciling with ip not in endpoint ip list",
|
|
serviceName: "foo",
|
|
ip: "5.6.7.8",
|
|
endpointPorts: []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}},
|
|
endpointKeys: []string{"1.2.3.4", "4.3.2.2", "4.3.2.3", "4.3.2.4"},
|
|
initialState: makeEndpointsArray("foo", []string{"1.2.3.4", "4.3.2.2", "4.3.2.3", "4.3.2.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
|
|
},
|
|
{
|
|
testName: "endpoint with no subset",
|
|
serviceName: "foo",
|
|
ip: "5.6.7.8",
|
|
endpointPorts: []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}},
|
|
endpointKeys: []string{"1.2.3.4", "4.3.2.2", "4.3.2.3", "4.3.2.4"},
|
|
initialState: makeEndpointsArray("foo", nil, nil),
|
|
expectUpdate: makeEndpointsArray("foo", []string{"1.2.3.4", "4.3.2.2", "4.3.2.3", "4.3.2.4"}, []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}}),
|
|
},
|
|
}
|
|
for _, test := range stopTests {
|
|
t.Run(test.testName, func(t *testing.T) {
|
|
fakeLeases := newFakeLeases()
|
|
fakeLeases.SetKeys(test.endpointKeys)
|
|
clientset := fake.NewSimpleClientset(test.initialState...)
|
|
epAdapter := NewEndpointsAdapter(clientset.CoreV1(), clientset.DiscoveryV1())
|
|
r := NewLeaseEndpointReconciler(epAdapter, fakeLeases)
|
|
err := r.RemoveEndpoints(test.serviceName, netutils.ParseIPSloppy(test.ip), test.endpointPorts)
|
|
if err != nil {
|
|
t.Errorf("unexpected error reconciling: %v", err)
|
|
}
|
|
|
|
err = verifyCreatesAndUpdates(clientset, nil, test.expectUpdate)
|
|
if err != nil {
|
|
t.Errorf("unexpected error in side effects: %v", err)
|
|
}
|
|
|
|
for _, key := range fakeLeases.GetUpdatedKeys() {
|
|
if key == test.ip {
|
|
t.Errorf("Found ip %s in leases but shouldn't be there", key)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
}
|