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.remote;
  
  import com.alibaba.nacos.api.config.remote.request.ConfigChangeNotifyRequest;
  import com.alibaba.nacos.config.server.model.ConfigListenState;
  import com.alibaba.nacos.config.server.model.event.LocalDataChangeEvent;
  import com.alibaba.nacos.config.server.utils.ConfigExecutor;
  import com.alibaba.nacos.config.server.utils.GroupKey2;
  import com.alibaba.nacos.core.remote.ConnectionManager;
  import com.alibaba.nacos.core.remote.ConnectionMeta;
  import com.alibaba.nacos.core.remote.RpcPushService;
  import com.alibaba.nacos.core.remote.grpc.GrpcConnection;
  import com.alibaba.nacos.plugin.control.ControlManagerCenter;
  import com.alibaba.nacos.plugin.control.tps.TpsControlManager;
  import com.alibaba.nacos.plugin.control.tps.request.TpsCheckRequest;
  import com.alibaba.nacos.plugin.control.tps.response.TpsCheckResponse;
  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.Mock;
  import org.mockito.MockedStatic;
  import org.mockito.Mockito;
  import org.mockito.junit.jupiter.MockitoExtension;
  import org.springframework.test.util.ReflectionTestUtils;
  
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.List;
  import java.util.Set;
  import java.util.concurrent.Executor;
  import java.util.concurrent.TimeUnit;
  
  import static org.mockito.ArgumentMatchers.any;
  import static org.mockito.ArgumentMatchers.anyInt;
  import static org.mockito.ArgumentMatchers.anyString;
  import static org.mockito.ArgumentMatchers.eq;
  import static org.mockito.Mockito.times;
  
  @ExtendWith(MockitoExtension.class)
  class RpcConfigChangeNotifierTest {
      
      static final String POINT_CONFIG_PUSH = "CONFIG_PUSH_COUNT";
      
      static final String POINT_CONFIG_PUSH_SUCCESS = "CONFIG_PUSH_SUCCESS";
      
      static final String POINT_CONFIG_PUSH_FAIL = "CONFIG_PUSH_FAIL";
      
      @Mock
      ControlManagerCenter controlManagerCenter;
      
      @Mock
      TpsControlManager tpsControlManager;
      
      MockedStatic<ControlManagerCenter> controlManagerCenterMockedStatic;
      
      MockedStatic<EnvUtil> envUtilMockedStatic;
      
      private RpcConfigChangeNotifier rpcConfigChangeNotifier;
      
      @Mock
      private ConfigChangeListenContext configChangeListenContext;
      
      @Mock
      private RpcPushService rpcPushService;
      
      @Mock
      private ConnectionManager connectionManager;
      
      @BeforeEach
      void setUp() {
          
          envUtilMockedStatic = Mockito.mockStatic(EnvUtil.class);
          envUtilMockedStatic.when(() -> EnvUtil.getProperty(eq("nacos.config.push.maxRetryTime"), eq(Integer.class), anyInt()))
                  .thenReturn(3);
          controlManagerCenterMockedStatic = Mockito.mockStatic(ControlManagerCenter.class);
          Mockito.when(ControlManagerCenter.getInstance()).thenReturn(controlManagerCenter);
          Mockito.when(ControlManagerCenter.getInstance().getTpsControlManager()).thenReturn(tpsControlManager);
          rpcConfigChangeNotifier = new RpcConfigChangeNotifier();
          ReflectionTestUtils.setField(rpcConfigChangeNotifier, "configChangeListenContext", configChangeListenContext);
          ReflectionTestUtils.setField(rpcConfigChangeNotifier, "rpcPushService", rpcPushService);
          ReflectionTestUtils.setField(rpcConfigChangeNotifier, "connectionManager", connectionManager);
          
      }
      
      @AfterEach
      void after() {
          envUtilMockedStatic.close();
          controlManagerCenterMockedStatic.close();
      }
      
      @Test
      void testOnDataEvent() throws InterruptedException {
          
          final String groupKey = GroupKey2.getKey("nacos.internal.tps.control_rule_1", "nacos", "tenant");
          
          List<String> betaIps = new ArrayList<>();
          
          betaIps.add("1.1.1.1");
          Set<String> mockConnectionIds = new HashSet<>();
          mockConnectionIds.add("con1");
          mockConnectionIds.add("con2");
          mockConnectionIds.add("con3");
          GrpcConnection mockConn1 = Mockito.mock(GrpcConnection.class);
          GrpcConnection mockConn3 = Mockito.mock(GrpcConnection.class);
          //mock con1 push normal
          Mockito.when(connectionManager.getConnection(eq("con1"))).thenReturn(mockConn1);
          Mockito.when(mockConn1.getMetaInfo())
                  .thenReturn(new ConnectionMeta("con1", "192.168.0.1", "192.168.0.2", 34567, 9848, "GRPC", "2.2.0", null, new HashMap<>()));
          //mock con1 noy exist
          Mockito.when(connectionManager.getConnection(eq("con2"))).thenReturn(null);
          Mockito.when(connectionManager.getConnection(eq("con3"))).thenReturn(mockConn3);
          Mockito.when(mockConn3.getMetaInfo())
                  .thenReturn(new ConnectionMeta("con3", "192.168.0.1", "192.168.0.2", 34567, 9848, "GRPC", "2.2.0", null, new HashMap<>()));
          Mockito.when(configChangeListenContext.getListeners(eq(groupKey))).thenReturn(mockConnectionIds);
          Mockito.when(configChangeListenContext.getConfigListenState(anyString(), anyString())).thenReturn(new ConfigListenState("111"));
          //mock push tps passed
          Mockito.when(tpsControlManager.check(any(TpsCheckRequest.class))).thenReturn(new TpsCheckResponse(true, 200, "success"));
          
          rpcConfigChangeNotifier.onEvent(new LocalDataChangeEvent(groupKey));
          //wait rpc push executed.
          Thread.sleep(50L);
          //expect rpc push task run.
          Mockito.verify(rpcPushService, times(1))
                  .pushWithCallback(eq("con1"), any(ConfigChangeNotifyRequest.class), any(RpcConfigChangeNotifier.RpcPushCallback.class),
                          any(Executor.class));
          Mockito.verify(rpcPushService, times(1))
                  .pushWithCallback(eq("con3"), any(ConfigChangeNotifyRequest.class), any(RpcConfigChangeNotifier.RpcPushCallback.class),
                          any(Executor.class));
          
      }
      
      @Test
      void testRpcCallBack() {
          MockedStatic<ConfigExecutor> configExecutorMockedStatic = Mockito.mockStatic(ConfigExecutor.class);
          try {
              RpcConfigChangeNotifier.RpcPushTask task = Mockito.mock(RpcConfigChangeNotifier.RpcPushTask.class);
              
              Mockito.when(task.getConnectionId()).thenReturn("testconn1");
              Mockito.when(connectionManager.getConnection(eq("testconn1"))).thenReturn(Mockito.mock(GrpcConnection.class));
              ConfigChangeNotifyRequest notifyRequest = new ConfigChangeNotifyRequest();
              notifyRequest.setDataId("d1");
              notifyRequest.setGroup("g1");
              Mockito.when(task.getNotifyRequest()).thenReturn(notifyRequest);
              //mock task not overtimes and receive exception on callback
              Mockito.when(task.isOverTimes()).thenReturn(false);
              Mockito.when(task.getTryTimes()).thenReturn(2);
              RpcConfigChangeNotifier.RpcPushCallback rpcPushCallback = new RpcConfigChangeNotifier.RpcPushCallback(task, tpsControlManager,
                      connectionManager);
              rpcPushCallback.onFail(new RuntimeException());
              
              //expect config push fail be recorded.
              Mockito.verify(tpsControlManager, times(1)).check(any(TpsCheckRequest.class));
              //expect schedule this task next retry times
              configExecutorMockedStatic.verify(
                      () -> ConfigExecutor.scheduleClientConfigNotifier(any(RpcConfigChangeNotifier.RpcPushTask.class), eq(2 * 2L),
                              eq(TimeUnit.SECONDS)));
              //mock
              rpcPushCallback.onSuccess();
              //expect config push success be recorded.
              Mockito.verify(tpsControlManager, times(2)).check(any(TpsCheckRequest.class));
              
              //mock task is over times
              Mockito.when(task.isOverTimes()).thenReturn(true);
              rpcPushCallback.onFail(new NullPointerException());
              Mockito.verify(connectionManager, times(1)).unregister(eq("testconn1"));
              
          } finally {
              configExecutorMockedStatic.close();
          }
          
      }
      
      @Test
      void testRegisterTpsPoint() {
          
          rpcConfigChangeNotifier.registerTpsPoint();
          Mockito.verify(tpsControlManager, Mockito.times(1)).registerTpsPoint(eq(POINT_CONFIG_PUSH));
          Mockito.verify(tpsControlManager, Mockito.times(1)).registerTpsPoint(eq(POINT_CONFIG_PUSH_SUCCESS));
          Mockito.verify(tpsControlManager, Mockito.times(1)).registerTpsPoint(eq(POINT_CONFIG_PUSH_FAIL));
          
      }
      
  }
  