added ut for for event handler
Signed-off-by: GautamBytes <manchandanigautam@gmail.com>
This commit is contained in:
GautamBytes
parent
deaa5f38b5
commit
742921a592
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@ -0,0 +1,204 @@
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package deployment
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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admissionregistrationv1 "k8s.io/api/admissionregistration/v1"
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appsv1 "k8s.io/api/apps/v1"
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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/client-go/util/workqueue"
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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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"sigs.k8s.io/controller-runtime/pkg/event"
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"sigs.k8s.io/controller-runtime/pkg/reconcile"
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"github.com/openkruise/rollouts/api/v1alpha1"
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"github.com/openkruise/rollouts/pkg/webhook/util/configuration"
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)
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func newScheme() *runtime.Scheme {
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scheme := runtime.NewScheme()
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_ = appsv1.AddToScheme(scheme)
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_ = admissionregistrationv1.AddToScheme(scheme)
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return scheme
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}
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func newDeployment(namespace, name string, withLabel, withRollingUpdate bool) *appsv1.Deployment {
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dep := &appsv1.Deployment{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: namespace,
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Name: name,
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Labels: make(map[string]string),
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},
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Spec: appsv1.DeploymentSpec{
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Strategy: appsv1.DeploymentStrategy{
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Type: appsv1.RecreateDeploymentStrategyType,
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},
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},
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}
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if withLabel {
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dep.Labels[v1alpha1.AdvancedDeploymentControlLabel] = "true"
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}
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if withRollingUpdate {
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dep.Spec.Strategy.Type = appsv1.RollingUpdateDeploymentStrategyType
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}
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return dep
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}
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func newWebhook(name string, withTimestamp bool) *admissionregistrationv1.MutatingWebhookConfiguration {
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wh := &admissionregistrationv1.MutatingWebhookConfiguration{
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ObjectMeta: metav1.ObjectMeta{
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Name: name,
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},
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}
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if withTimestamp {
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now := metav1.Now()
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wh.DeletionTimestamp = &now
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}
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return wh
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}
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func TestMutatingWebhookEventHandler(t *testing.T) {
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matchingDep := newDeployment("ns", "matching-dep", true, false)
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fakeClient := fake.NewClientBuilder().WithScheme(newScheme()).WithObjects(matchingDep).Build()
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handler := MutatingWebhookEventHandler{Reader: fakeClient}
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testCases := []struct {
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name string
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event interface{}
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expectEnqueue bool
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handlerFunc func(e interface{}, q workqueue.RateLimitingInterface)
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}{
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{
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name: "Create: Correct webhook should NOT enqueue (timestamp is zero)",
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event: event.CreateEvent{Object: newWebhook(configuration.MutatingWebhookConfigurationName, false)},
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expectEnqueue: false,
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handlerFunc: func(e interface{}, q workqueue.RateLimitingInterface) {
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handler.Create(e.(event.CreateEvent), q)
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},
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},
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{
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name: "Create: Correct webhook with deletion timestamp SHOULD enqueue",
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event: event.CreateEvent{Object: newWebhook(configuration.MutatingWebhookConfigurationName, true)},
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expectEnqueue: true,
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handlerFunc: func(e interface{}, q workqueue.RateLimitingInterface) {
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handler.Create(e.(event.CreateEvent), q)
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},
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},
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{
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name: "Create: Wrong webhook name should NOT enqueue",
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event: event.CreateEvent{Object: newWebhook("wrong-name", false)},
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expectEnqueue: false,
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handlerFunc: func(e interface{}, q workqueue.RateLimitingInterface) {
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handler.Create(e.(event.CreateEvent), q)
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},
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},
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{
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name: "Create: Wrong object type should NOT enqueue",
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event: event.CreateEvent{Object: matchingDep},
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expectEnqueue: false,
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handlerFunc: func(e interface{}, q workqueue.RateLimitingInterface) {
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handler.Create(e.(event.CreateEvent), q)
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},
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},
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{
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name: "Update: Correct webhook should NOT enqueue (timestamp is zero)",
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event: event.UpdateEvent{ObjectNew: newWebhook(configuration.MutatingWebhookConfigurationName, false)},
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expectEnqueue: false,
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handlerFunc: func(e interface{}, q workqueue.RateLimitingInterface) {
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handler.Update(e.(event.UpdateEvent), q)
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},
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},
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{
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name: "Update: Correct webhook with deletion timestamp SHOULD enqueue",
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event: event.UpdateEvent{ObjectNew: newWebhook(configuration.MutatingWebhookConfigurationName, true)},
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expectEnqueue: true,
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handlerFunc: func(e interface{}, q workqueue.RateLimitingInterface) {
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handler.Update(e.(event.UpdateEvent), q)
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},
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},
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{
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name: "Delete: Correct webhook should enqueue",
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event: event.DeleteEvent{Object: newWebhook(configuration.MutatingWebhookConfigurationName, false)},
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expectEnqueue: true,
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handlerFunc: func(e interface{}, q workqueue.RateLimitingInterface) {
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handler.Delete(e.(event.DeleteEvent), q)
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},
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},
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{
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name: "Generic: Correct webhook should NOT enqueue (timestamp is zero)",
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event: event.GenericEvent{Object: newWebhook(configuration.MutatingWebhookConfigurationName, false)},
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expectEnqueue: false,
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handlerFunc: func(e interface{}, q workqueue.RateLimitingInterface) {
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handler.Generic(e.(event.GenericEvent), q)
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},
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},
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{
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name: "Generic: Correct webhook with deletion timestamp SHOULD enqueue",
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event: event.GenericEvent{Object: newWebhook(configuration.MutatingWebhookConfigurationName, true)},
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expectEnqueue: true,
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handlerFunc: func(e interface{}, q workqueue.RateLimitingInterface) {
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handler.Generic(e.(event.GenericEvent), q)
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},
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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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q := workqueue.NewRateLimitingQueue(workqueue.DefaultControllerRateLimiter())
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tc.handlerFunc(tc.event, q)
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if tc.expectEnqueue {
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assert.Equal(t, 1, q.Len(), "Expected item to be enqueued")
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// Verify enqueued item matches our deployment
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item, _ := q.Get()
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req := item.(reconcile.Request)
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assert.Equal(t, "matching-dep", req.Name)
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assert.Equal(t, "ns", req.Namespace)
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} else {
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assert.Equal(t, 0, q.Len(), "Expected queue to be empty")
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}
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})
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}
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}
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func TestEnqueue(t *testing.T) {
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depMatch := newDeployment("ns1", "dep-match", true, false)
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depWrongStrategy := newDeployment("ns1", "dep-wrong-strategy", true, true)
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depNoLabel := newDeployment("ns2", "dep-no-label", false, false)
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depMatch2 := newDeployment("ns3", "dep-match-2", true, false)
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fakeClient := fake.NewClientBuilder().WithScheme(newScheme()).WithObjects(
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depMatch, depWrongStrategy, depNoLabel, depMatch2,
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).Build()
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handler := MutatingWebhookEventHandler{Reader: fakeClient}
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t.Run("Enqueues multiple matching deployments", func(t *testing.T) {
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q := workqueue.NewRateLimitingQueue(workqueue.DefaultControllerRateLimiter())
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handler.enqueue(q)
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assert.Equal(t, 2, q.Len())
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// Verify both deployments are enqueued
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items := []reconcile.Request{}
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for q.Len() > 0 {
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item, _ := q.Get()
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req := item.(reconcile.Request)
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items = append(items, req)
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q.Done(item)
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}
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assert.ElementsMatch(t, []reconcile.Request{
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{NamespacedName: client.ObjectKey{Namespace: "ns1", Name: "dep-match"}},
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{NamespacedName: client.ObjectKey{Namespace: "ns3", Name: "dep-match-2"}},
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}, items)
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})
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t.Run("Does not enqueue when no deployments match", func(t *testing.T) {
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clientNoMatch := fake.NewClientBuilder().WithScheme(newScheme()).WithObjects(depWrongStrategy, depNoLabel).Build()
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handlerNoMatch := MutatingWebhookEventHandler{Reader: clientNoMatch}
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q := workqueue.NewRateLimitingQueue(workqueue.DefaultControllerRateLimiter())
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handlerNoMatch.enqueue(q)
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assert.Equal(t, 0, q.Len())
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})
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}
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