Add checking error for disruption e2e test

Author: k-toyoda-pi

test/e2e/apps/disruption.go

@@ -607,6 +607,7 @@ func waitForPdbToObserveHealthyPods(cs kubernetes.Interface, ns string, healthyC
 func getPDBStatusOrDie(dc dynamic.Interface, ns string, name string) *policyv1beta1.PodDisruptionBudget {
 	pdbStatusResource := policyv1beta1.SchemeGroupVersion.WithResource("poddisruptionbudgets")
 	unstruct, err := dc.Resource(pdbStatusResource).Namespace(ns).Get(context.TODO(), name, metav1.GetOptions{}, "status")
+	framework.ExpectNoError(err)
 	pdb, err := unstructuredToPDB(unstruct)
 	framework.ExpectNoError(err, "Getting the status of the pdb %s in namespace %s", name, ns)
 	return pdb