content: /*
   * Copyright 1999-2023 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.client.naming.selector;
  
  import com.alibaba.nacos.api.naming.listener.AbstractEventListener;
  import com.alibaba.nacos.api.naming.listener.EventListener;
  import com.alibaba.nacos.api.naming.listener.NamingEvent;
  import com.alibaba.nacos.client.naming.event.InstancesDiff;
  import com.alibaba.nacos.client.naming.listener.AbstractNamingChangeListener;
  import com.alibaba.nacos.client.naming.listener.NamingChangeEvent;
  import org.junit.jupiter.api.Test;
  
  import java.util.Collections;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertNotEquals;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.spy;
  import static org.mockito.Mockito.verify;
  
  public class NamingListenerInvokerTest {
      
      @Test
      public void testEventListener() {
          EventListener listener = mock(EventListener.class);
          NamingListenerInvoker listenerInvoker = new NamingListenerInvoker(listener);
          NamingEvent event = new NamingEvent("serviceName", Collections.emptyList());
          assertFalse(listenerInvoker.isInvoked());
          listenerInvoker.invoke(event);
          verify(listener).onEvent(event);
          assertTrue(listenerInvoker.isInvoked());
      }
      
      @Test
      public void testAbstractEventListener() {
          AbstractEventListener listener = mock(AbstractEventListener.class);
          NamingListenerInvoker listenerInvoker = new NamingListenerInvoker(listener);
          NamingEvent event = new NamingEvent("serviceName", Collections.emptyList());
          assertFalse(listenerInvoker.isInvoked());
          listenerInvoker.invoke(event);
          verify(listener).getExecutor();
          assertTrue(listenerInvoker.isInvoked());
      }
      
      @Test
      public void testAbstractNamingChaneEventListener() {
          AbstractNamingChangeListener listener = spy(AbstractNamingChangeListener.class);
          NamingListenerInvoker listenerInvoker = new NamingListenerInvoker(listener);
          NamingChangeEvent event = new NamingChangeEvent("serviceName", Collections.emptyList(), new InstancesDiff());
          assertFalse(listenerInvoker.isInvoked());
          listenerInvoker.invoke(event);
          verify(listener).onChange(event);
          assertTrue(listenerInvoker.isInvoked());
      }
      
      @Test
      public void testEquals() {
          EventListener listener1 = mock(EventListener.class);
          EventListener listener2 = mock(EventListener.class);
          NamingListenerInvoker invoker1 = new NamingListenerInvoker(listener1);
          NamingListenerInvoker invoker2 = new NamingListenerInvoker(listener1);
          NamingListenerInvoker invoker3 = new NamingListenerInvoker(listener2);
          assertEquals(invoker1.hashCode(), invoker2.hashCode());
          assertEquals(invoker1, invoker2);
          assertNotEquals(invoker1.hashCode(), invoker3.hashCode());
          assertNotEquals(invoker1, invoker3);
          assertNotEquals(null, invoker1);
          assertEquals(invoker1, invoker1);
      }
  }
  