content: /*
   * Copyright 1999-2020 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.naming.core.v2.event.publisher;
  
  import com.alibaba.nacos.common.notify.EventPublisher;
  import com.alibaba.nacos.common.notify.NotifyCenter;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.springframework.util.ReflectionUtils;
  
  import java.lang.reflect.Field;
  import java.util.HashMap;
  import java.util.Map;
  
  import static org.hamcrest.CoreMatchers.is;
  import static org.hamcrest.MatcherAssert.assertThat;
  
  class NamingEventPublisherFactoryTest {
      
      private Map<String, EventPublisher> originalEventPublisherMap;
      
      @BeforeEach
      void setUp() throws Exception {
          originalEventPublisherMap = new HashMap<>(NotifyCenter.getPublisherMap());
          NotifyCenter.getPublisherMap().clear();
          // Protect other unit test publisher affect this case.
          Field field = ReflectionUtils.findField(NamingEventPublisherFactory.class, "publisher", Map.class);
          field.setAccessible(true);
          Map map = (Map) field.get(NamingEventPublisherFactory.getInstance());
          map.clear();
      }
      
      @AfterEach
      void tearDown() throws Exception {
          NotifyCenter.getPublisherMap().clear();
          NotifyCenter.getPublisherMap().putAll(originalEventPublisherMap);
          originalEventPublisherMap = null;
      }
      
      @Test
      void testApply() {
          NamingEventPublisherFactory.getInstance().apply(TestEvent.TestEvent1.class, Byte.SIZE);
          NamingEventPublisherFactory.getInstance().apply(TestEvent.TestEvent2.class, Byte.SIZE);
          NamingEventPublisherFactory.getInstance().apply(TestEvent.class, Byte.SIZE);
          String expectedStatus =
                  "Naming event publisher statues:\n" + "\tPublisher TestEvent                     : shutdown=false, queue=      0/8      \n";
          assertThat(NamingEventPublisherFactory.getInstance().getAllPublisherStatues(), is(expectedStatus));
      }
  }
  