299 lines
9.1 KiB
Go
299 lines
9.1 KiB
Go
/*
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Copyright 2016 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 storage
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import (
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"testing"
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apiequality "k8s.io/apimachinery/pkg/api/equality"
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"k8s.io/apimachinery/pkg/api/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/fields"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/apimachinery/pkg/util/diff"
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genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
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"k8s.io/apiserver/pkg/registry/generic"
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"k8s.io/apiserver/pkg/registry/rest"
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etcdtesting "k8s.io/apiserver/pkg/storage/etcd/testing"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/apis/apps"
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"k8s.io/kubernetes/pkg/apis/extensions"
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"k8s.io/kubernetes/pkg/registry/registrytest"
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)
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// TODO: allow for global factory override
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func newStorage(t *testing.T) (StatefulSetStorage, *etcdtesting.EtcdTestServer) {
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etcdStorage, server := registrytest.NewEtcdStorage(t, apps.GroupName)
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restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1, ResourcePrefix: "statefulsets"}
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storage := NewStorage(restOptions)
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return storage, server
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}
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// createStatefulSet is a helper function that returns a StatefulSet with the updated resource version.
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func createStatefulSet(storage *REST, ps apps.StatefulSet, t *testing.T) (apps.StatefulSet, error) {
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ctx := genericapirequest.WithNamespace(genericapirequest.NewContext(), ps.Namespace)
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obj, err := storage.Create(ctx, &ps, false)
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if err != nil {
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t.Errorf("Failed to create StatefulSet, %v", err)
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}
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newPS := obj.(*apps.StatefulSet)
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return *newPS, nil
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}
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func validNewStatefulSet() *apps.StatefulSet {
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return &apps.StatefulSet{
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ObjectMeta: metav1.ObjectMeta{
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Name: "foo",
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Namespace: metav1.NamespaceDefault,
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Labels: map[string]string{"a": "b"},
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},
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Spec: apps.StatefulSetSpec{
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PodManagementPolicy: apps.OrderedReadyPodManagement,
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Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"a": "b"}},
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Template: api.PodTemplateSpec{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{"a": "b"},
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},
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Spec: api.PodSpec{
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Containers: []api.Container{
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{
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Name: "test",
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Image: "test_image",
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ImagePullPolicy: api.PullIfNotPresent,
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},
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},
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RestartPolicy: api.RestartPolicyAlways,
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DNSPolicy: api.DNSClusterFirst,
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},
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},
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Replicas: 7,
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UpdateStrategy: apps.StatefulSetUpdateStrategy{Type: apps.RollingUpdateStatefulSetStrategyType},
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},
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Status: apps.StatefulSetStatus{},
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}
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}
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var validStatefulSet = *validNewStatefulSet()
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func TestCreate(t *testing.T) {
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storage, server := newStorage(t)
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defer server.Terminate(t)
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defer storage.StatefulSet.Store.DestroyFunc()
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test := registrytest.New(t, storage.StatefulSet.Store)
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ps := validNewStatefulSet()
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ps.ObjectMeta = metav1.ObjectMeta{}
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test.TestCreate(
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// valid
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ps,
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// TODO: Add an invalid case when we have validation.
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)
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}
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// TODO: Test updates to spec when we allow them.
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func TestStatusUpdate(t *testing.T) {
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storage, server := newStorage(t)
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defer server.Terminate(t)
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defer storage.StatefulSet.Store.DestroyFunc()
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ctx := genericapirequest.WithNamespace(genericapirequest.NewContext(), metav1.NamespaceDefault)
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key := "/statefulsets/" + metav1.NamespaceDefault + "/foo"
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validStatefulSet := validNewStatefulSet()
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if err := storage.StatefulSet.Storage.Create(ctx, key, validStatefulSet, nil, 0); err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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update := apps.StatefulSet{
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ObjectMeta: validStatefulSet.ObjectMeta,
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Spec: apps.StatefulSetSpec{
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Replicas: 7,
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},
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Status: apps.StatefulSetStatus{
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Replicas: 7,
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},
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}
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if _, _, err := storage.Status.Update(ctx, update.Name, rest.DefaultUpdatedObjectInfo(&update)); err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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obj, err := storage.StatefulSet.Get(ctx, "foo", &metav1.GetOptions{})
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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ps := obj.(*apps.StatefulSet)
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if ps.Spec.Replicas != 7 {
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t.Errorf("we expected .spec.replicas to not be updated but it was updated to %v", ps.Spec.Replicas)
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}
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if ps.Status.Replicas != 7 {
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t.Errorf("we expected .status.replicas to be updated to %d but it was %v", 7, ps.Status.Replicas)
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}
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}
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func TestGet(t *testing.T) {
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storage, server := newStorage(t)
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defer server.Terminate(t)
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defer storage.StatefulSet.Store.DestroyFunc()
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test := registrytest.New(t, storage.StatefulSet.Store)
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test.TestGet(validNewStatefulSet())
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}
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func TestList(t *testing.T) {
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storage, server := newStorage(t)
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defer server.Terminate(t)
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defer storage.StatefulSet.Store.DestroyFunc()
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test := registrytest.New(t, storage.StatefulSet.Store)
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test.TestList(validNewStatefulSet())
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}
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func TestDelete(t *testing.T) {
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storage, server := newStorage(t)
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defer server.Terminate(t)
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defer storage.StatefulSet.Store.DestroyFunc()
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test := registrytest.New(t, storage.StatefulSet.Store)
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test.TestDelete(validNewStatefulSet())
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}
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func TestWatch(t *testing.T) {
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storage, server := newStorage(t)
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defer server.Terminate(t)
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defer storage.StatefulSet.Store.DestroyFunc()
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test := registrytest.New(t, storage.StatefulSet.Store)
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test.TestWatch(
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validNewStatefulSet(),
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// matching labels
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[]labels.Set{
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{"a": "b"},
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},
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// not matching labels
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[]labels.Set{
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{"a": "c"},
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{"foo": "bar"},
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},
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// matching fields
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[]fields.Set{
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{"metadata.name": "foo"},
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},
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// not matching fields
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[]fields.Set{
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{"metadata.name": "bar"},
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},
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)
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}
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func TestCategories(t *testing.T) {
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storage, server := newStorage(t)
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defer server.Terminate(t)
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defer storage.StatefulSet.Store.DestroyFunc()
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expected := []string{"all"}
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registrytest.AssertCategories(t, storage.StatefulSet, expected)
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}
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func TestShortNames(t *testing.T) {
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storage, server := newStorage(t)
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defer server.Terminate(t)
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defer storage.StatefulSet.Store.DestroyFunc()
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expected := []string{"sts"}
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registrytest.AssertShortNames(t, storage.StatefulSet, expected)
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}
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func TestScaleGet(t *testing.T) {
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storage, server := newStorage(t)
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defer server.Terminate(t)
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defer storage.StatefulSet.Store.DestroyFunc()
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name := "foo"
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var sts apps.StatefulSet
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ctx := genericapirequest.WithNamespace(genericapirequest.NewContext(), metav1.NamespaceDefault)
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key := "/statefulsets/" + metav1.NamespaceDefault + "/" + name
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if err := storage.StatefulSet.Storage.Create(ctx, key, &validStatefulSet, &sts, 0); err != nil {
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t.Fatalf("error setting new statefulset (key: %s) %v: %v", key, validStatefulSet, err)
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}
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want := &extensions.Scale{
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ObjectMeta: metav1.ObjectMeta{
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Name: name,
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Namespace: metav1.NamespaceDefault,
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UID: sts.UID,
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ResourceVersion: sts.ResourceVersion,
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CreationTimestamp: sts.CreationTimestamp,
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},
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Spec: extensions.ScaleSpec{
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Replicas: validStatefulSet.Spec.Replicas,
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},
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Status: extensions.ScaleStatus{
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Replicas: validStatefulSet.Status.Replicas,
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Selector: validStatefulSet.Spec.Selector,
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},
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}
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obj, err := storage.Scale.Get(ctx, name, &metav1.GetOptions{})
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got := obj.(*extensions.Scale)
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if err != nil {
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t.Fatalf("error fetching scale for %s: %v", name, err)
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}
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if !apiequality.Semantic.DeepEqual(got, want) {
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t.Errorf("unexpected scale: %s", diff.ObjectDiff(got, want))
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}
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}
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func TestScaleUpdate(t *testing.T) {
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storage, server := newStorage(t)
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defer server.Terminate(t)
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defer storage.StatefulSet.Store.DestroyFunc()
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name := "foo"
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var sts apps.StatefulSet
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ctx := genericapirequest.WithNamespace(genericapirequest.NewContext(), metav1.NamespaceDefault)
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key := "/statefulsets/" + metav1.NamespaceDefault + "/" + name
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if err := storage.StatefulSet.Storage.Create(ctx, key, &validStatefulSet, &sts, 0); err != nil {
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t.Fatalf("error setting new statefulset (key: %s) %v: %v", key, validStatefulSet, err)
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}
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replicas := 12
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update := extensions.Scale{
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ObjectMeta: metav1.ObjectMeta{
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Name: name,
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Namespace: metav1.NamespaceDefault,
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},
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Spec: extensions.ScaleSpec{
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Replicas: int32(replicas),
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},
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}
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if _, _, err := storage.Scale.Update(ctx, update.Name, rest.DefaultUpdatedObjectInfo(&update)); err != nil {
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t.Fatalf("error updating scale %v: %v", update, err)
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}
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obj, err := storage.Scale.Get(ctx, name, &metav1.GetOptions{})
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if err != nil {
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t.Fatalf("error fetching scale for %s: %v", name, err)
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}
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scale := obj.(*extensions.Scale)
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if scale.Spec.Replicas != int32(replicas) {
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t.Errorf("wrong replicas count expected: %d got: %d", replicas, scale.Spec.Replicas)
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}
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update.ResourceVersion = sts.ResourceVersion
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update.Spec.Replicas = 15
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if _, _, err = storage.Scale.Update(ctx, update.Name, rest.DefaultUpdatedObjectInfo(&update)); err != nil && !errors.IsConflict(err) {
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t.Fatalf("unexpected error, expecting an update conflict but got %v", err)
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}
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}
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// TODO: Test generation number.
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