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f543e7434a
Consistently verify creates/updates based on the fake client's action tracking, not based on the return values of the reconciler functions. (This will also let us check that both Endpoints and EndpointSlices were created/updated correctly.)
269 lines
12 KiB
Go
269 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 reconcilers
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import (
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"testing"
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corev1 "k8s.io/api/core/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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func TestMasterCountEndpointReconciler(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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additionalMasters int
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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 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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additionalMasters: 3,
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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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additionalMasters: 3,
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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 satisfy and endpoint addresses length less than master count",
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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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additionalMasters: 3,
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initialState: makeEndpointsArray("foo", []string{"4.3.2.1", "4.3.2.2"}, []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 current IP missing and address length less than master count",
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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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additionalMasters: 3,
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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 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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testName: "no existing sctp endpoints",
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serviceName: "boo",
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ip: "1.2.3.4",
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endpointPorts: []corev1.EndpointPort{{Name: "boo", Port: 7777, Protocol: "SCTP"}},
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initialState: nil,
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expectCreate: makeEndpointsArray("boo", []string{"1.2.3.4"}, []corev1.EndpointPort{{Name: "boo", Port: 7777, Protocol: "SCTP"}}),
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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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fakeClient := fake.NewSimpleClientset(test.initialState...)
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epAdapter := NewEndpointsAdapter(fakeClient.CoreV1(), nil)
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reconciler := NewMasterCountEndpointReconciler(test.additionalMasters+1, epAdapter)
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err := reconciler.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(fakeClient, 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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})
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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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additionalMasters int
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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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fakeClient := fake.NewSimpleClientset(test.initialState...)
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epAdapter := NewEndpointsAdapter(fakeClient.CoreV1(), nil)
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reconciler := NewMasterCountEndpointReconciler(test.additionalMasters+1, epAdapter)
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err := reconciler.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(fakeClient, 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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})
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}
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}
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func TestEmptySubsets(t *testing.T) {
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endpoints := makeEndpoints("foo", nil, nil)
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fakeClient := fake.NewSimpleClientset(endpoints)
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epAdapter := NewEndpointsAdapter(fakeClient.CoreV1(), nil)
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reconciler := NewMasterCountEndpointReconciler(1, epAdapter)
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endpointPorts := []corev1.EndpointPort{
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{Name: "foo", Port: 8080, Protocol: "TCP"},
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}
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err := reconciler.RemoveEndpoints("foo", netutils.ParseIPSloppy("1.2.3.4"), endpointPorts)
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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}
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