tester.request.setParameter("controlKey", KeyFactory.keyToString(controlKey));
String run = tester.start("/tasks/restoreEnd");
assertNull(run);
LocalTaskQueue ltq = LocalTaskQueueTestConfig.getLocalTaskQueue();
String defaultQueueName = QueueFactory.getDefaultQueue().getQueueName();
QueueStateInfo qsi = ltq.getQueueStateInfo().get(defaultQueueName);
List<TaskStateInfo> taskInfo = qsi.getTaskInfo();
// finish task chain
assertThat(taskInfo.size(), is(0));