271 lines
7.5 KiB
Go
271 lines
7.5 KiB
Go
/*
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Copyright 2024 The Karmada 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 gracefuleviction
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import (
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"context"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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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/apimachinery/pkg/types"
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"k8s.io/client-go/tools/record"
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controllerruntime "sigs.k8s.io/controller-runtime"
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"sigs.k8s.io/controller-runtime/pkg/client"
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"sigs.k8s.io/controller-runtime/pkg/client/fake"
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workv1alpha2 "github.com/karmada-io/karmada/pkg/apis/work/v1alpha2"
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"github.com/karmada-io/karmada/pkg/sharedcli/ratelimiterflag"
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)
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func TestRBGracefulEvictionController_Reconcile(t *testing.T) {
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scheme := runtime.NewScheme()
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err := workv1alpha2.Install(scheme)
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require.NoError(t, err, "Failed to add workv1alpha2 to scheme")
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now := metav1.Now()
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testCases := []struct {
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name string
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binding *workv1alpha2.ResourceBinding
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expectedResult controllerruntime.Result
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expectedError bool
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expectedRequeue bool
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notFound bool
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}{
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{
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name: "binding with no graceful eviction tasks",
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binding: &workv1alpha2.ResourceBinding{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test-binding",
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Namespace: "default",
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},
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Spec: workv1alpha2.ResourceBindingSpec{
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GracefulEvictionTasks: []workv1alpha2.GracefulEvictionTask{},
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},
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},
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expectedResult: controllerruntime.Result{},
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expectedError: false,
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expectedRequeue: false,
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},
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{
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name: "binding with active graceful eviction tasks",
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binding: &workv1alpha2.ResourceBinding{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test-binding",
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Namespace: "default",
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},
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Spec: workv1alpha2.ResourceBindingSpec{
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GracefulEvictionTasks: []workv1alpha2.GracefulEvictionTask{
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{
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FromCluster: "cluster1",
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CreationTimestamp: &now,
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},
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},
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},
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Status: workv1alpha2.ResourceBindingStatus{
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SchedulerObservedGeneration: 1,
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},
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},
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expectedResult: controllerruntime.Result{},
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expectedError: false,
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expectedRequeue: false,
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},
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{
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name: "binding marked for deletion",
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binding: &workv1alpha2.ResourceBinding{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test-binding",
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Namespace: "default",
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DeletionTimestamp: &now,
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Finalizers: []string{"test-finalizer"},
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},
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},
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expectedResult: controllerruntime.Result{},
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expectedError: false,
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expectedRequeue: false,
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},
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{
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name: "binding not found",
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binding: &workv1alpha2.ResourceBinding{
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ObjectMeta: metav1.ObjectMeta{
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Name: "non-existent-binding",
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Namespace: "default",
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},
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},
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expectedResult: controllerruntime.Result{},
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expectedError: false,
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expectedRequeue: false,
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notFound: true,
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},
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}
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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// Create a fake client with or without the binding object
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var client client.Client
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if tc.notFound {
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client = fake.NewClientBuilder().WithScheme(scheme).Build()
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} else {
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client = fake.NewClientBuilder().WithScheme(scheme).WithObjects(tc.binding).Build()
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}
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c := &RBGracefulEvictionController{
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Client: client,
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EventRecorder: record.NewFakeRecorder(10),
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RateLimiterOptions: ratelimiterflag.Options{},
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GracefulEvictionTimeout: 5 * time.Minute,
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}
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result, err := c.Reconcile(context.TODO(), controllerruntime.Request{
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NamespacedName: types.NamespacedName{
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Namespace: tc.binding.Namespace,
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Name: tc.binding.Name,
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},
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})
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if tc.expectedError {
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assert.Error(t, err)
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} else {
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assert.NoError(t, err)
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}
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assert.Equal(t, tc.expectedResult, result)
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if tc.expectedRequeue {
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assert.True(t, result.RequeueAfter > 0, "Expected requeue, but got no requeue")
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} else {
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assert.Zero(t, result.RequeueAfter, "Expected no requeue, but got requeue")
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}
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// Verify the binding was updated, unless it's the "not found" case
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if !tc.notFound {
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updatedBinding := &workv1alpha2.ResourceBinding{}
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err = client.Get(context.TODO(), types.NamespacedName{Namespace: tc.binding.Namespace, Name: tc.binding.Name}, updatedBinding)
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assert.NoError(t, err)
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}
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})
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}
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}
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func TestRBGracefulEvictionController_syncBinding(t *testing.T) {
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scheme := runtime.NewScheme()
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err := workv1alpha2.Install(scheme)
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if err != nil {
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t.Fatalf("Failed to add workv1alpha2 to scheme: %v", err)
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}
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now := metav1.Now()
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testCases := []struct {
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name string
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binding *workv1alpha2.ResourceBinding
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expectedRetryAfter time.Duration
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expectedEvictionLen int
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expectedError bool
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}{
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{
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name: "no eviction tasks",
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binding: &workv1alpha2.ResourceBinding{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test-binding",
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Namespace: "default",
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},
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Spec: workv1alpha2.ResourceBindingSpec{
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GracefulEvictionTasks: []workv1alpha2.GracefulEvictionTask{},
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},
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},
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expectedRetryAfter: 0,
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expectedEvictionLen: 0,
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expectedError: false,
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},
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{
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name: "active eviction task",
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binding: &workv1alpha2.ResourceBinding{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test-binding",
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Namespace: "default",
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},
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Spec: workv1alpha2.ResourceBindingSpec{
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GracefulEvictionTasks: []workv1alpha2.GracefulEvictionTask{
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{
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FromCluster: "cluster1",
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CreationTimestamp: &now,
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},
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},
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},
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},
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expectedRetryAfter: 0,
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expectedEvictionLen: 0,
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expectedError: false,
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},
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{
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name: "expired eviction task",
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binding: &workv1alpha2.ResourceBinding{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test-binding",
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Namespace: "default",
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},
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Spec: workv1alpha2.ResourceBindingSpec{
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GracefulEvictionTasks: []workv1alpha2.GracefulEvictionTask{
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{
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FromCluster: "cluster1",
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CreationTimestamp: &metav1.Time{Time: now.Add(-10 * time.Minute)},
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},
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},
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},
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},
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expectedRetryAfter: 0,
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expectedEvictionLen: 0,
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expectedError: false,
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},
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}
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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// Create a fake client with the binding object
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client := fake.NewClientBuilder().WithScheme(scheme).WithObjects(tc.binding).Build()
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c := &RBGracefulEvictionController{
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Client: client,
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EventRecorder: &record.FakeRecorder{},
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RateLimiterOptions: ratelimiterflag.Options{},
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GracefulEvictionTimeout: 5 * time.Minute,
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}
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retryAfter, err := c.syncBinding(context.TODO(), tc.binding)
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if tc.expectedError {
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assert.Error(t, err)
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} else {
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assert.NoError(t, err)
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}
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assert.Equal(t, tc.expectedRetryAfter, retryAfter)
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// Check the updated binding
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updatedBinding := &workv1alpha2.ResourceBinding{}
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err = client.Get(context.TODO(), types.NamespacedName{Namespace: tc.binding.Namespace, Name: tc.binding.Name}, updatedBinding)
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assert.NoError(t, err)
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assert.Equal(t, tc.expectedEvictionLen, len(updatedBinding.Spec.GracefulEvictionTasks))
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})
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}
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}
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