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.config.server.controller;
  
  import com.alibaba.nacos.api.config.remote.response.ClientConfigMetricResponse;
  import com.alibaba.nacos.common.model.RestResult;
  import com.alibaba.nacos.config.server.constant.Constants;
  import com.alibaba.nacos.core.cluster.Member;
  import com.alibaba.nacos.core.cluster.ServerMemberManager;
  import com.alibaba.nacos.core.remote.Connection;
  import com.alibaba.nacos.core.remote.ConnectionManager;
  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.InjectMocks;
  import org.mockito.Mock;
  import org.mockito.Mockito;
  import org.springframework.core.env.StandardEnvironment;
  import org.springframework.mock.web.MockServletContext;
  import org.springframework.test.context.ContextConfiguration;
  import org.springframework.test.context.junit.jupiter.SpringExtension;
  import org.springframework.test.context.web.WebAppConfiguration;
  import org.springframework.test.util.ReflectionTestUtils;
  import org.springframework.test.web.servlet.MockMvc;
  import org.springframework.test.web.servlet.request.MockHttpServletRequestBuilder;
  import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
  import org.springframework.test.web.servlet.setup.MockMvcBuilders;
  
  import jakarta.servlet.ServletContext;
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  import java.util.concurrent.CountDownLatch;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.mockito.ArgumentMatchers.any;
  import static org.mockito.ArgumentMatchers.anyLong;
  import static org.mockito.ArgumentMatchers.eq;
  import static org.mockito.Mockito.when;
  
  @ExtendWith(SpringExtension.class)
  @ContextConfiguration(classes = MockServletContext.class)
  @WebAppConfiguration
  class ClientMetricsControllerTest {
      
      @InjectMocks
      ClientMetricsController clientMetricsController;
      
      private MockMvc mockMvc;
      
      @Mock
      private ServerMemberManager memberManager;
      
      @Mock
      private ConnectionManager connectionManager;
      
      @Mock
      private ServletContext servletContext;
      
      @BeforeEach
      void setUp() {
          EnvUtil.setEnvironment(new StandardEnvironment());
          when(servletContext.getContextPath()).thenReturn("/nacos");
          ReflectionTestUtils.setField(clientMetricsController, "serverMemberManager", memberManager);
          ReflectionTestUtils.setField(clientMetricsController, "connectionManager", connectionManager);
          mockMvc = MockMvcBuilders.standaloneSetup(clientMetricsController).build();
      }
      
      @Test
      void testGetClusterMetric() throws Exception {
          List<Member> members = new ArrayList<>();
          Member m1 = new Member();
          m1.setIp("127.0.0.1");
          m1.setPort(8848);
          members.add(m1);
          Member m2 = new Member();
          m2.setIp("127.0.0.1");
          m2.setPort(9848);
          members.add(m2);
          Member m3 = new Member();
          m3.setIp("127.0.0.1");
          m3.setPort(7848);
          members.add(m3);
          
          when(memberManager.allMembers()).thenReturn(members);
          
          MockHttpServletRequestBuilder builder = MockMvcRequestBuilders.get(Constants.METRICS_CONTROLLER_PATH + "/cluster")
                  .param("ip", "127.0.0.1").param("tenant", "test").param("dataId", "test").param("group", "test");
          int actualValue = mockMvc.perform(builder).andReturn().getResponse().getStatus();
          assertEquals(200, actualValue);
      }
      
      @Test
      void testClusterMetricsCallBack() {
          
          Member m1 = new Member();
          m1.setIp("127.0.0.1");
          m1.setPort(8848);
          
          //success result
          RestResult<Map> result1 = new RestResult<>();
          HashMap<String, Object> stringObjectHashMap = new HashMap<>();
          stringObjectHashMap.put("test", "md5..");
          result1.setData(stringObjectHashMap);
          result1.setCode(200);
          
          CountDownLatch latch = new CountDownLatch(5);
          String dataId = "d1";
          String group = "g1";
          String tenant = "t1";
          String ip = "192.168.0.1";
          Map<String, Object> responseMap = new HashMap<>();
          ClientMetricsController.ClusterMetricsCallBack clusterMetricsCallBack = new ClientMetricsController.ClusterMetricsCallBack(
                  responseMap, latch, dataId, group, tenant, ip, m1);
          clusterMetricsCallBack.onReceive(result1);
          //fail result
          RestResult<Map> result2 = new RestResult<>();
          HashMap<String, Object> stringObjectHashMap2 = new HashMap<>();
          stringObjectHashMap2.put("test2", "md5..");
          result2.setData(stringObjectHashMap2);
          result2.setCode(500);
          clusterMetricsCallBack.onReceive(result2);
          //error and cancel
          clusterMetricsCallBack.onError(new NullPointerException());
          clusterMetricsCallBack.onCancel();
          clusterMetricsCallBack.onCancel();
          assertEquals(stringObjectHashMap, responseMap);
          assertEquals(0, latch.getCount());
      }
      
      @Test
      void testGetCurrentMetric() throws Exception {
          
          ClientConfigMetricResponse response = new ClientConfigMetricResponse();
          response.putMetric("test", "test");
          Connection connection = Mockito.mock(Connection.class);
          when(connection.request(any(), anyLong())).thenReturn(response);
          List<Connection> connections = new ArrayList<>();
          connections.add(connection);
          when(connectionManager.getConnectionByIp(eq("127.0.0.1"))).thenReturn(connections);
          
          MockHttpServletRequestBuilder builder = MockMvcRequestBuilders.get(Constants.METRICS_CONTROLLER_PATH + "/current")
                  .param("ip", "127.0.0.1").param("tenant", "test").param("dataId", "test").param("group", "test");
          String actualValue = mockMvc.perform(builder).andReturn().getResponse().getContentAsString();
          assertEquals("{\"test\":\"test\"}", actualValue);
          
      }
      
  }
  