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.core.service;
  
  import com.alibaba.nacos.api.exception.NacosException;
  import com.alibaba.nacos.api.model.response.ServerLoaderMetrics;
  import com.alibaba.nacos.api.remote.response.ServerLoaderInfoResponse;
  import com.alibaba.nacos.core.cluster.Member;
  import com.alibaba.nacos.core.cluster.ServerMemberManager;
  import com.alibaba.nacos.core.cluster.remote.ClusterRpcClientProxy;
  import com.alibaba.nacos.core.remote.Connection;
  import com.alibaba.nacos.core.remote.ConnectionManager;
  import com.alibaba.nacos.core.remote.core.ServerLoaderInfoRequestHandler;
  import com.alibaba.nacos.core.remote.core.ServerReloaderRequestHandler;
  import com.alibaba.nacos.sys.env.EnvUtil;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.extension.ExtendWith;
  import org.mockito.Mock;
  import org.mockito.Mockito;
  import org.mockito.junit.jupiter.MockitoExtension;
  import org.springframework.mock.env.MockEnvironment;
  
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.Map;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  import static org.mockito.Mockito.verify;
  
  @ExtendWith(MockitoExtension.class)
  class NacosServerLoaderServiceTest {
      
      @Mock
      private ConnectionManager connectionManager;
      
      @Mock
      private ServerMemberManager serverMemberManager;
      
      @Mock
      private ServerLoaderInfoRequestHandler serverLoaderInfoRequestHandler;
      
      @Mock
      private ClusterRpcClientProxy clusterRpcClientProxy;
      
      @Mock
      private ServerReloaderRequestHandler serverReloaderRequestHandler;
      
      private NacosServerLoaderService nacosServerLoaderService;
      
      @BeforeEach
      void setUp() {
          nacosServerLoaderService = new NacosServerLoaderService(connectionManager, serverMemberManager,
                  clusterRpcClientProxy, serverReloaderRequestHandler, serverLoaderInfoRequestHandler);
      }
      
      @Test
      void testCurrentClients() {
          Mockito.when(connectionManager.currentClients()).thenReturn(new HashMap<>());
          Map<String, Connection> result = nacosServerLoaderService.getAllClients();
          assertEquals(0, result.size());
      }
      
      @Test
      void testReloadCount() {
          nacosServerLoaderService.reloadCount(1, "1.1.1.1");
          verify(connectionManager).loadCount(1, "1.1.1.1");
      }
      
      @Test
      void testSmartReload() throws NacosException {
          EnvUtil.setEnvironment(new MockEnvironment());
          Member member = new Member();
          member.setIp("1.1.1.1");
          member.setPort(8848);
          Mockito.when(serverMemberManager.allMembersWithoutSelf()).thenReturn(Collections.singletonList(member));
          Map<String, String> metrics = new HashMap<>();
          metrics.put("conCount", "1");
          metrics.put("sdkConCount", "1");
          ServerLoaderInfoResponse serverLoaderInfoResponse = new ServerLoaderInfoResponse();
          serverLoaderInfoResponse.setLoaderMetrics(metrics);
          Mockito.when(serverLoaderInfoRequestHandler.handle(Mockito.any(), Mockito.any()))
                  .thenReturn(serverLoaderInfoResponse);
          Mockito.when(serverMemberManager.getSelf()).thenReturn(member);
          boolean result = nacosServerLoaderService.smartReload(1f);
          assertTrue(result);
      }
      
      @Test
      void testReloadSingle() {
          nacosServerLoaderService.reloadClient("111", "1.1.1.1");
          verify(connectionManager).loadSingle("111", "1.1.1.1");
      }
      
      @Test
      void testLoaderMetrics() throws NacosException {
          EnvUtil.setEnvironment(new MockEnvironment());
          Member member = new Member();
          member.setIp("1.1.1.1");
          member.setPort(8848);
          Mockito.when(serverMemberManager.allMembersWithoutSelf()).thenReturn(Collections.singletonList(member));
          
          Map<String, String> metrics = new HashMap<>();
          metrics.put("sdkConCount", "1");
          metrics.put("conCount", "2");
          metrics.put("load", "3");
          metrics.put("cpu", "4");
          ServerLoaderInfoResponse serverLoaderInfoResponse = new ServerLoaderInfoResponse();
          serverLoaderInfoResponse.setLoaderMetrics(metrics);
          Mockito.when(serverLoaderInfoRequestHandler.handle(Mockito.any(), Mockito.any()))
                  .thenReturn(serverLoaderInfoResponse);
          
          Mockito.when(serverMemberManager.getSelf()).thenReturn(member);
          
          ServerLoaderMetrics result = nacosServerLoaderService.getServerLoaderMetrics();
          
          assertEquals(1, result.getDetail().size());
          assertEquals(1, result.getDetail().get(0).getSdkConCount());
          assertEquals(2, result.getDetail().get(0).getConCount());
          assertEquals("3", result.getDetail().get(0).getLoad());
          assertEquals("4", result.getDetail().get(0).getCpu());
          assertEquals("1.1.1.1:8848", result.getDetail().get(0).getAddress());
      }
  }