mirror of
https://github.com/k3s-io/kubernetes.git
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229 lines
7.9 KiB
Go
229 lines
7.9 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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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 namespace
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import (
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"fmt"
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"strings"
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"testing"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/api/errors"
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"k8s.io/kubernetes/pkg/api/unversioned"
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clientset "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
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"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/fake"
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"k8s.io/kubernetes/pkg/client/testing/core"
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"k8s.io/kubernetes/pkg/util/sets"
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)
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func TestFinalized(t *testing.T) {
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testNamespace := &api.Namespace{
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Spec: api.NamespaceSpec{
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Finalizers: []api.FinalizerName{"a", "b"},
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},
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}
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if finalized(testNamespace) {
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t.Errorf("Unexpected result, namespace is not finalized")
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}
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testNamespace.Spec.Finalizers = []api.FinalizerName{}
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if !finalized(testNamespace) {
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t.Errorf("Expected object to be finalized")
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}
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}
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func TestFinalizeNamespaceFunc(t *testing.T) {
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mockClient := &fake.Clientset{}
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testNamespace := &api.Namespace{
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ObjectMeta: api.ObjectMeta{
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Name: "test",
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ResourceVersion: "1",
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},
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Spec: api.NamespaceSpec{
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Finalizers: []api.FinalizerName{"kubernetes", "other"},
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},
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}
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finalizeNamespaceFunc(mockClient, testNamespace)
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actions := mockClient.Actions()
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if len(actions) != 1 {
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t.Errorf("Expected 1 mock client action, but got %v", len(actions))
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}
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if !actions[0].Matches("create", "namespaces") || actions[0].GetSubresource() != "finalize" {
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t.Errorf("Expected finalize-namespace action %v", actions[0])
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}
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finalizers := actions[0].(core.CreateAction).GetObject().(*api.Namespace).Spec.Finalizers
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if len(finalizers) != 1 {
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t.Errorf("There should be a single finalizer remaining")
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}
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if "other" != string(finalizers[0]) {
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t.Errorf("Unexpected finalizer value, %v", finalizers[0])
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}
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}
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func testSyncNamespaceThatIsTerminating(t *testing.T, versions *unversioned.APIVersions) {
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now := unversioned.Now()
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testNamespacePendingFinalize := &api.Namespace{
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ObjectMeta: api.ObjectMeta{
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Name: "test",
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ResourceVersion: "1",
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DeletionTimestamp: &now,
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},
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Spec: api.NamespaceSpec{
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Finalizers: []api.FinalizerName{"kubernetes"},
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},
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Status: api.NamespaceStatus{
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Phase: api.NamespaceTerminating,
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},
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}
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testNamespaceFinalizeComplete := &api.Namespace{
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ObjectMeta: api.ObjectMeta{
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Name: "test",
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ResourceVersion: "1",
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DeletionTimestamp: &now,
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},
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Spec: api.NamespaceSpec{},
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Status: api.NamespaceStatus{
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Phase: api.NamespaceTerminating,
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},
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}
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// TODO: Reuse the constants for all these strings from testclient
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pendingActionSet := sets.NewString(
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strings.Join([]string{"get", "namespaces", ""}, "-"),
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strings.Join([]string{"delete-collection", "replicationcontrollers", ""}, "-"),
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strings.Join([]string{"list", "services", ""}, "-"),
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strings.Join([]string{"list", "pods", ""}, "-"),
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strings.Join([]string{"delete-collection", "resourcequotas", ""}, "-"),
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strings.Join([]string{"delete-collection", "secrets", ""}, "-"),
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strings.Join([]string{"delete-collection", "configmaps", ""}, "-"),
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strings.Join([]string{"delete-collection", "limitranges", ""}, "-"),
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strings.Join([]string{"delete-collection", "events", ""}, "-"),
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strings.Join([]string{"delete-collection", "serviceaccounts", ""}, "-"),
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strings.Join([]string{"delete-collection", "persistentvolumeclaims", ""}, "-"),
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strings.Join([]string{"create", "namespaces", "finalize"}, "-"),
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)
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if containsVersion(versions, "extensions/v1beta1") {
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pendingActionSet.Insert(
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strings.Join([]string{"delete-collection", "daemonsets", ""}, "-"),
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strings.Join([]string{"delete-collection", "deployments", ""}, "-"),
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strings.Join([]string{"delete-collection", "replicasets", ""}, "-"),
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strings.Join([]string{"delete-collection", "jobs", ""}, "-"),
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strings.Join([]string{"delete-collection", "horizontalpodautoscalers", ""}, "-"),
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strings.Join([]string{"delete-collection", "ingresses", ""}, "-"),
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strings.Join([]string{"get", "resource", ""}, "-"),
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)
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}
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scenarios := map[string]struct {
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testNamespace *api.Namespace
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expectedActionSet sets.String
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}{
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"pending-finalize": {
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testNamespace: testNamespacePendingFinalize,
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expectedActionSet: pendingActionSet,
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},
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"complete-finalize": {
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testNamespace: testNamespaceFinalizeComplete,
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expectedActionSet: sets.NewString(
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strings.Join([]string{"get", "namespaces", ""}, "-"),
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strings.Join([]string{"delete", "namespaces", ""}, "-"),
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),
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},
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}
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for scenario, testInput := range scenarios {
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mockClient := fake.NewSimpleClientset(testInput.testNamespace)
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if containsVersion(versions, "extensions/v1beta1") {
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resources := []unversioned.APIResource{}
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for _, resource := range []string{"daemonsets", "deployments", "replicasets", "jobs", "horizontalpodautoscalers", "ingresses"} {
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resources = append(resources, unversioned.APIResource{Name: resource})
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}
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mockClient.Resources = map[string]*unversioned.APIResourceList{
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"extensions/v1beta1": {
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GroupVersion: "extensions/v1beta1",
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APIResources: resources,
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},
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}
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}
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err := syncNamespace(mockClient, versions, testInput.testNamespace)
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if err != nil {
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t.Errorf("scenario %s - Unexpected error when synching namespace %v", scenario, err)
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}
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actionSet := sets.NewString()
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for _, action := range mockClient.Actions() {
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actionSet.Insert(strings.Join([]string{action.GetVerb(), action.GetResource(), action.GetSubresource()}, "-"))
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}
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if !actionSet.HasAll(testInput.expectedActionSet.List()...) {
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t.Errorf("scenario %s - Expected actions:\n%v\n but got:\n%v\nDifference:\n%v", scenario, testInput.expectedActionSet, actionSet, testInput.expectedActionSet.Difference(actionSet))
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}
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if !testInput.expectedActionSet.HasAll(actionSet.List()...) {
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t.Errorf("scenario %s - Expected actions:\n%v\n but got:\n%v\nDifference:\n%v", scenario, testInput.expectedActionSet, actionSet, actionSet.Difference(testInput.expectedActionSet))
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}
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}
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}
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func TestRetryOnConflictError(t *testing.T) {
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mockClient := &fake.Clientset{}
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numTries := 0
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retryOnce := func(kubeClient clientset.Interface, namespace *api.Namespace) (*api.Namespace, error) {
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numTries++
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if numTries <= 1 {
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return namespace, errors.NewConflict(api.Resource("namespaces"), namespace.Name, fmt.Errorf("ERROR!"))
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}
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return namespace, nil
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}
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namespace := &api.Namespace{}
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_, err := retryOnConflictError(mockClient, namespace, retryOnce)
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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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if numTries != 2 {
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t.Errorf("Expected %v, but got %v", 2, numTries)
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}
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}
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func TestSyncNamespaceThatIsTerminatingNonExperimental(t *testing.T) {
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testSyncNamespaceThatIsTerminating(t, &unversioned.APIVersions{})
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}
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func TestSyncNamespaceThatIsTerminatingV1Beta1(t *testing.T) {
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testSyncNamespaceThatIsTerminating(t, &unversioned.APIVersions{Versions: []string{"extensions/v1beta1"}})
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}
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func TestSyncNamespaceThatIsActive(t *testing.T) {
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mockClient := &fake.Clientset{}
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testNamespace := &api.Namespace{
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ObjectMeta: api.ObjectMeta{
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Name: "test",
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ResourceVersion: "1",
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},
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Spec: api.NamespaceSpec{
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Finalizers: []api.FinalizerName{"kubernetes"},
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},
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Status: api.NamespaceStatus{
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Phase: api.NamespaceActive,
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},
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}
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err := syncNamespace(mockClient, &unversioned.APIVersions{}, testNamespace)
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if err != nil {
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t.Errorf("Unexpected error when synching namespace %v", err)
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}
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if len(mockClient.Actions()) != 0 {
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t.Errorf("Expected no action from controller, but got: %v", mockClient.Actions())
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}
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}
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