@Override
        public UserData peekData() {

            UserData data = new DefaultUserData();
            ((DefaultUserData) data).setLocalZone("zone");
            Map<String, List<String>> map = new HashMap<String, List<String>>();
            map.put("zone", providerInfos);
            ((DefaultUserData) data).setZoneData(map);
            return data;
        }
build config data
@param num
@return
registry/registry-sofa/src/test/java/com/alipay/sofa/rpc/registry/sofa/SofaRegistrySubscribeCallbackTest.java