142 lines
4.6 KiB
Go
142 lines
4.6 KiB
Go
/*
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Copyright 2024 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 leaderelection
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import (
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"context"
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"testing"
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"time"
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v1 "k8s.io/api/coordination/v1"
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v1alpha1 "k8s.io/api/coordination/v1alpha1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/util/wait"
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"k8s.io/client-go/informers"
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"k8s.io/client-go/kubernetes/fake"
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"k8s.io/utils/ptr"
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)
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func TestLeaseCandidateGCController(t *testing.T) {
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tests := []struct {
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name string
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leaseCandidates []*v1alpha1.LeaseCandidate
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expectedDeletedCount int
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}{
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{
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name: "delete expired lease candidates",
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leaseCandidates: []*v1alpha1.LeaseCandidate{
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{
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ObjectMeta: metav1.ObjectMeta{
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Name: "candidate1",
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Namespace: "default",
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CreationTimestamp: metav1.Time{Time: time.Now().Add(-1 * leaseCandidateValidDuration)},
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},
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Spec: v1alpha1.LeaseCandidateSpec{
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LeaseName: "component-A",
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EmulationVersion: "1.19.0",
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BinaryVersion: "1.19.0",
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RenewTime: ptr.To(metav1.NewMicroTime(time.Now().Add(-1 * leaseCandidateValidDuration))),
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PreferredStrategies: []v1.CoordinatedLeaseStrategy{v1.OldestEmulationVersion},
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},
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},
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{
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ObjectMeta: metav1.ObjectMeta{
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Name: "candidate2",
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Namespace: "default",
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CreationTimestamp: metav1.Time{Time: time.Now().Add(-1 * leaseCandidateValidDuration)},
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},
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Spec: v1alpha1.LeaseCandidateSpec{
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LeaseName: "component-B",
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EmulationVersion: "1.19.0",
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BinaryVersion: "1.19.0",
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RenewTime: ptr.To(metav1.NewMicroTime(time.Now().Add(-1 * leaseCandidateValidDuration))),
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PreferredStrategies: []v1.CoordinatedLeaseStrategy{v1.OldestEmulationVersion},
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},
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},
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{
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ObjectMeta: metav1.ObjectMeta{
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Name: "candidate3",
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Namespace: "default",
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CreationTimestamp: metav1.Time{Time: time.Now()},
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},
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Spec: v1alpha1.LeaseCandidateSpec{
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LeaseName: "component-C",
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EmulationVersion: "1.19.0",
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BinaryVersion: "1.19.0",
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RenewTime: ptr.To(metav1.NewMicroTime(time.Now())),
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PreferredStrategies: []v1.CoordinatedLeaseStrategy{v1.OldestEmulationVersion},
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},
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},
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},
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expectedDeletedCount: 2,
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},
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{
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name: "no expired lease candidates",
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leaseCandidates: []*v1alpha1.LeaseCandidate{
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{
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ObjectMeta: metav1.ObjectMeta{
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Name: "candidate1",
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Namespace: "default",
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CreationTimestamp: metav1.Time{Time: time.Now()},
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},
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Spec: v1alpha1.LeaseCandidateSpec{
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LeaseName: "component-A",
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EmulationVersion: "1.19.0",
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BinaryVersion: "1.19.0",
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RenewTime: ptr.To(metav1.NewMicroTime(time.Now())),
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PreferredStrategies: []v1.CoordinatedLeaseStrategy{v1.OldestEmulationVersion},
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},
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},
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},
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expectedDeletedCount: 0,
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},
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}
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for _, tc := range tests {
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t.Run(tc.name, func(t *testing.T) {
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ctx := context.Background()
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client := fake.NewSimpleClientset()
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informerFactory := informers.NewSharedInformerFactory(client, 0)
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leaseCandidateInformer := informerFactory.Coordination().V1alpha1().LeaseCandidates()
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controller := NewLeaseCandidateGC(client, 10*time.Millisecond, leaseCandidateInformer)
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// Create lease candidates
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for _, lc := range tc.leaseCandidates {
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_, err := client.CoordinationV1alpha1().LeaseCandidates(lc.Namespace).Create(ctx, lc, metav1.CreateOptions{})
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if err != nil {
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t.Fatal(err)
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}
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}
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informerFactory.Start(ctx.Done())
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informerFactory.WaitForCacheSync(ctx.Done())
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go controller.Run(ctx)
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err := wait.PollUntilContextTimeout(ctx, 100*time.Millisecond, 600*time.Second, true, func(ctx context.Context) (done bool, err error) {
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lcs, err := client.CoordinationV1alpha1().LeaseCandidates("default").List(ctx, metav1.ListOptions{})
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if err != nil {
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return true, err
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}
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return len(lcs.Items) == len(tc.leaseCandidates)-tc.expectedDeletedCount, nil
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})
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if err != nil {
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t.Fatal(err)
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}
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})
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}
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}
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