content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.alibaba.nacos.consistency;
  
  import com.alibaba.nacos.common.utils.JacksonUtils;
  import org.junit.jupiter.api.Test;
  
  import java.util.Date;
  import java.util.HashMap;
  import java.util.Map;
  import java.util.concurrent.CountDownLatch;
  import java.util.concurrent.TimeUnit;
  import java.util.concurrent.atomic.AtomicInteger;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  class ProtocolMetaDataTest {
      
      @Test
      void testProtocolMetaData() throws Exception {
          Map<String, Map<String, Object>> map = new HashMap<>();
          Map<String, Object> data = new HashMap<>();
          data.put("test-1", new Date());
          data.put("test_2", new Date());
          map.put("global", data);
          
          ProtocolMetaData metaData = new ProtocolMetaData();
          
          metaData.load(map);
          
          String json = JacksonUtils.toJson(metaData);
          AtomicInteger count = new AtomicInteger(0);
          
          CountDownLatch latch = new CountDownLatch(2);
          
          metaData.subscribe("global", "test-1", o -> {
              ProtocolMetaData.ValueItem item = (ProtocolMetaData.ValueItem) o;
              System.out.println(item.getData());
              count.incrementAndGet();
              latch.countDown();
          });
          
          map = new HashMap<>();
          data = new HashMap<>();
          data.put("test-1", new Date());
          data.put("test_2", new Date());
          map.put("global", data);
          
          metaData.load(map);
          
          latch.await(10_000L, TimeUnit.MILLISECONDS);
          
          assertEquals(2, count.get());
          
      }
      
  }
  