@Override
    public List<String> getNameServerAddressList() {
        return this.defaultMQAdminExtImpl.getNameServerAddressList();
    }
@Test
    public void testGetNameServerAddressList() {
        List<String> result = new ArrayList<>();
        result.add("default-name-one");
        result.add("default-name-two");
        when(mqClientInstance.getMQClientAPIImpl().getNameServerAddressList()).thenReturn(result);
        List<String> nameList = defaultMQAdminExt.getNameServerAddressList();
        assertThat(nameList.get(0)).isEqualTo("default-name-one");
        assertThat(nameList.get(1)).isEqualTo("default-name-two");
    }