@Test
 public void testGetClusterName() {
   BroadcastResultMergeService broadcastResultMergeService =
       (BroadcastResultMergeService) consumerContext.getBean("broadcastResultMergeService");
   List<String> list = broadcastResultMergeService.getClusterName();
   System.out.println(list);
 }
  @Before
  public void init() {
    providerContext = new ClassPathXmlApplicationContext(providerConfigLocation);
    providerContext.start();
    BroadcastResultMergeService bean =
        (BroadcastResultMergeService) providerContext.getBean("broadcastResultMergeService");
    bean.setClusterName("dubbo-cluster-1");

    providerContext2 = new ClassPathXmlApplicationContext(providerConfigLocation);
    providerContext2.start();
    bean = (BroadcastResultMergeService) providerContext2.getBean("broadcastResultMergeService");
    bean.setClusterName("dubbo-cluster-2");

    consumerContext = new ClassPathXmlApplicationContext(consumerConfigLocation);
    consumerContext.start();
  }