Add comformance test for event Update

Author: chelseychen

test/conformance/testdata/conformance.yaml

@@ -1515,7 +1515,8 @@
   codename: '[sig-instrumentation] Events API should ensure that an event can be fetched,
     patched, deleted, and listed [Conformance]'
   description: Create an event, the event MUST exist. The event is patched with a
-    new note, the check MUST have the update note. The event is deleted and MUST NOT
+    new note, the check MUST have the update note. The event is updated with a new
+    series, the check MUST have the update series. The event is deleted and MUST NOT
     show up when listing all events.
   release: v1.19
   file: test/e2e/instrumentation/events.go

test/e2e/instrumentation/events.go

@@ -89,6 +89,7 @@ var _ = common.SIGDescribe("Events API", func() {
 		Testname: New Event resource lifecycle, testing a single event
 		Description: Create an event, the event MUST exist.
 		The event is patched with a new note, the check MUST have the update note.
+		The event is updated with a new series, the check MUST have the update series.
 		The event is deleted and MUST NOT show up when listing all events.
 	*/
 	framework.ConformanceIt("should ensure that an event can be fetched, patched, deleted, and listed", func() {
@@ -147,6 +148,24 @@ var _ = common.SIGDescribe("Events API", func() {
 			framework.Failf("test event wasn't properly patched: %v", diff.ObjectReflectDiff(testEvent, event))
 		}
 
+		ginkgo.By("updating the test event")
+		testEvent.Series = &eventsv1.EventSeries{
+			Count:            100,
+			LastObservedTime: metav1.MicroTime{Time: time.Unix(1505828956, 0)},
+		}
+		_, err = client.Update(context.TODO(), testEvent, metav1.UpdateOptions{})
+		framework.ExpectNoError(err, "failed to update the test event")
+
+		ginkgo.By("getting the test event")
+		event, err = client.Get(context.TODO(), eventName, metav1.GetOptions{})
+		framework.ExpectNoError(err, "failed to get test event")
+		// clear ResourceVersion and ManagedFields which are set by control-plane
+		event.ObjectMeta.ResourceVersion = ""
+		event.ObjectMeta.ManagedFields = nil
+		if !apiequality.Semantic.DeepEqual(testEvent, event) {
+			framework.Failf("test event wasn't properly updated: %v", diff.ObjectReflectDiff(testEvent, event))
+		}
+
 		ginkgo.By("deleting the test event")
 		err = client.Delete(context.TODO(), eventName, metav1.DeleteOptions{})
 		framework.ExpectNoError(err, "failed to delete the test event")