content: /*
   * Copyright 1999-2025 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.console.cluster;
  
  import com.alibaba.nacos.common.notify.NotifyCenter;
  import com.alibaba.nacos.core.cluster.Member;
  import com.alibaba.nacos.core.cluster.MemberLookup;
  import com.alibaba.nacos.core.cluster.MembersChangeEvent;
  import com.alibaba.nacos.plugin.auth.constant.Constants;
  import com.alibaba.nacos.sys.env.EnvUtil;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.extension.ExtendWith;
  import org.mockito.ArgumentCaptor;
  import org.mockito.Mock;
  import org.mockito.MockedStatic;
  import org.mockito.Mockito;
  import org.mockito.junit.jupiter.MockitoExtension;
  import org.springframework.core.env.ConfigurableEnvironment;
  import org.springframework.mock.env.MockEnvironment;
  import org.springframework.test.util.ReflectionTestUtils;
  
  import java.util.Collection;
  import java.util.Collections;
  import java.util.List;
  import java.util.Set;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  @ExtendWith(MockitoExtension.class)
  class RemoteServerMemberManagerTest {
      
      private ConfigurableEnvironment cachedEnvironment;
      
      private RemoteServerMemberManager memberManager;
      
      @Mock
      private MemberLookup mockLookup;
      
      @BeforeEach
      void setUp() throws Exception {
          cachedEnvironment = EnvUtil.getEnvironment();
          MockEnvironment environment = new MockEnvironment();
          environment.setProperty(Constants.Auth.NACOS_CORE_AUTH_ADMIN_ENABLED, "false");
          EnvUtil.setEnvironment(environment);
          memberManager = new RemoteServerMemberManager();
      }
      
      @AfterEach
      void tearDown() {
          EnvUtil.setEnvironment(cachedEnvironment);
      }
      
      @Test
      void testInitAndStartLookup() throws Exception {
          memberManager.init();
          MemberLookup lookup = (MemberLookup) ReflectionTestUtils.getField(memberManager, "lookup");
          assertNotNull(lookup);
      }
      
      @Test
      void testMemberChange() {
          // 准备测试数据
          Member member = Member.builder().ip("127.0.0.1").port(8848).build();
          Set<Member> members = Collections.singleton(member);
          
          // 执行方法
          boolean result = memberManager.memberChange(members);
          
          // 验证结果
          assertTrue(result);
          assertEquals(1, memberManager.allMembers().size());
          assertEquals(member, memberManager.allMembers().iterator().next());
      }
      
      @Test
      void testAllMembersReturnsCopy() {
          // 准备测试数据
          Member member = Member.builder().ip("127.0.0.1").port(8848).build();
          memberManager.memberChange(Collections.singleton(member));
          
          // 修改返回的集合
          Collection<Member> members = memberManager.allMembers();
          members.clear();
          
          // 验证原始数据未被修改
          assertEquals(1, memberManager.allMembers().size());
      }
      
      @Test
      void testEventPublishingOnMemberChange() {
          try (MockedStatic<NotifyCenter> notifyCenter = Mockito.mockStatic(NotifyCenter.class)) {
              // 准备测试数据
              Member member = Member.builder().ip("127.0.0.1").port(8848).build();
              
              // 执行方法
              memberManager.memberChange(Collections.singleton(member));
              
              // 验证事件发布
              ArgumentCaptor<MembersChangeEvent> eventCaptor = ArgumentCaptor.forClass(MembersChangeEvent.class);
              notifyCenter.verify(() -> NotifyCenter.publishEvent(eventCaptor.capture()));
              
              MembersChangeEvent event = eventCaptor.getValue();
              assertEquals(1, event.getMembers().size());
              assertEquals(member, event.getMembers().iterator().next());
          }
      }
      
      @Test
      void shouldHandleEmptyMemberList() {
          boolean result = memberManager.memberChange(Collections.emptySet());
          assertTrue(result);
          assertEquals(0, memberManager.allMembers().size());
      }
      
      @Test
      void shouldHandleDuplicateMembers() {
          Member member1 = Member.builder().ip("127.0.0.1").port(8848).build();
          Member member2 = Member.builder().ip("127.0.0.1").port(8848).build();
          
          memberManager.memberChange(List.of(member1, member2));
          
          assertEquals(1, memberManager.allMembers().size());
      }
  }