@Test
public void listItemCityRelations() {

    CityItemListRelationRequest request = new CityItemListRelationRequest();
    request.setItemIds(Lists.newArrayList(1L,2L,3L,4L));
    ICResponse<Map<Long, List<CityItemInfo>>> mapICResponse = cityItemReadService.listItemCityRelations(request);
    printJson(mapICResponse);
    assertNotNull(mapICResponse);
    assertTrue(mapICResponse.isSuccess());
}