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Create e2e test for ReplicationController scale endpoints

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e2e test validates the following 2 endpoints
- readCoreV1NamespacedReplicationControllerScale
- replaceCoreV1NamespacedReplicationControllerScale
This commit is contained in:
Stephen Heywood 2022-09-19 12:37:32 +12:00
parent 127f33f63d
commit 925fa2785e
1 changed files with 48 additions and 0 deletions
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48
test/e2e/apps/rc.go
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@ -30,6 +30,7 @@ import (
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/types"
utilrand "k8s.io/apimachinery/pkg/util/rand"
"k8s.io/apimachinery/pkg/util/uuid"
"k8s.io/apimachinery/pkg/util/wait"
watch "k8s.io/apimachinery/pkg/watch"
@ -390,6 +391,36 @@ var _ = SIGDescribe("ReplicationController", func() {
return err
})
})
ginkgo.It("should get and update a ReplicationController scale", func() {
rcClient := f.ClientSet.CoreV1().ReplicationControllers(ns)
rcName := "e2e-rc-" + utilrand.String(5)
initialRCReplicaCount := int32(1)
expectedRCReplicaCount := int32(2)
ginkgo.By(fmt.Sprintf("Creating ReplicationController %q", rcName))
rc := newRC(rcName, initialRCReplicaCount, map[string]string{"name": rcName}, WebserverImageName, WebserverImage, nil)
_, err := rcClient.Create(context.TODO(), rc, metav1.CreateOptions{})
framework.ExpectNoError(err, "Failed to create ReplicationController: %v", err)
err = wait.PollImmediate(1*time.Second, 1*time.Minute, checkReplicationControllerStatusReplicaCount(f, rcName, initialRCReplicaCount))
framework.ExpectNoError(err, "failed to confirm the quantity of ReplicationController replicas")
ginkgo.By(fmt.Sprintf("Getting scale subresource for ReplicationController %q", rcName))
scale, err := rcClient.GetScale(context.TODO(), rcName, metav1.GetOptions{})
framework.ExpectNoError(err, "Failed to get scale subresource: %v", err)
framework.ExpectEqual(scale.Status.Replicas, initialRCReplicaCount, "Failed to get the current replica count")
ginkgo.By("Updating a scale subresource")
scale.ResourceVersion = "" // indicate the scale update should be unconditional
scale.Spec.Replicas = expectedRCReplicaCount
_, err = rcClient.UpdateScale(context.TODO(), rcName, scale, metav1.UpdateOptions{})
framework.ExpectNoError(err, "Failed to update scale subresource: %v", err)
ginkgo.By(fmt.Sprintf("Verifying replicas where modified for replication controller %q", rcName))
err = wait.PollImmediate(1*time.Second, 1*time.Minute, checkReplicationControllerStatusReplicaCount(f, rcName, expectedRCReplicaCount))
framework.ExpectNoError(err, "failed to confirm the quantity of ReplicationController replicas")
})
})
func newRC(rsName string, replicas int32, rcPodLabels map[string]string, imageName string, image string, args []string) *v1.ReplicationController {
@ -730,3 +761,20 @@ func watchUntilWithoutRetry(ctx context.Context, watcher watch.Interface, condit
}
return lastEvent, nil
}
func checkReplicationControllerStatusReplicaCount(f *framework.Framework, rcName string, quantity int32) func() (bool, error) {
return func() (bool, error) {
framework.Logf("Get Replication Controller %q to confirm replicas", rcName)
rc, err := f.ClientSet.CoreV1().ReplicationControllers(f.Namespace.Name).Get(context.TODO(), rcName, metav1.GetOptions{})
if err != nil {
return false, err
}
if rc.Status.Replicas != quantity {
return false, nil
}
framework.Logf("Found %d replicas for %q replication controller", quantity, rc.Name)
return true, nil
}
}