Bug 1765294: Test timing of SA pull secret creation

Ensure service account pull secrets are created in 2 seconds or less.

test/extended/controller_manager/pull_secret.go

@@ -195,4 +195,20 @@ var _ = g.Describe("[sig-devex][Feature:OpenShiftControllerManager]", func() {
 			t.Fatalf("error waiting for pull secret deletion: %v", err)
 		}
 	})
+
+	g.It("create service account pull secrets timing", func() {
+		clusterAdminKubeClient := oc.AdminKubeClient()
+		saNamespace := oc.Namespace()
+
+		g.By("creating test service account")
+		sa := &corev1.ServiceAccount{
+			ObjectMeta: metav1.ObjectMeta{Name: "new-sa", Namespace: saNamespace},
+		}
+
+		sa, err := clusterAdminKubeClient.CoreV1().ServiceAccounts(sa.Namespace).Create(sa)
+		o.Expect(err).NotTo(o.HaveOccurred())
+		g.By("waiting up to 2 seconds for the service account's pull secret to be created")
+		_, _, err = waitForServiceAccountPullSecret(clusterAdminKubeClient, sa.Namespace, sa.Name, 20, 100*time.Millisecond)
+		o.Expect(err).NotTo(o.HaveOccurred())
+	})
 })