content: /*
   *  Copyright 1999-2021 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.naming.remote.rpc.handler;
  
  import com.alibaba.nacos.api.exception.NacosException;
  import com.alibaba.nacos.api.remote.request.RequestMeta;
  import com.alibaba.nacos.api.remote.response.ResponseCode;
  import com.alibaba.nacos.core.distributed.distro.DistroProtocol;
  import com.alibaba.nacos.core.distributed.distro.entity.DistroData;
  import com.alibaba.nacos.naming.cluster.remote.request.DistroDataRequest;
  import com.alibaba.nacos.naming.cluster.remote.response.DistroDataResponse;
  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.mockito.junit.jupiter.MockitoExtension;
  
  import static com.alibaba.nacos.consistency.DataOperation.ADD;
  import static com.alibaba.nacos.consistency.DataOperation.DELETE;
  import static com.alibaba.nacos.consistency.DataOperation.QUERY;
  import static com.alibaba.nacos.consistency.DataOperation.SNAPSHOT;
  import static com.alibaba.nacos.consistency.DataOperation.VERIFY;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNull;
  
  /**
   * {@link DistroDataRequestHandler} unit tests.
   *
   * @author chenglu
   * @date 2021-09-17 20:50
   */
  @ExtendWith(MockitoExtension.class)
  class DistroDataRequestHandlerTest {
      
      @InjectMocks
      private DistroDataRequestHandler distroDataRequestHandler;
      
      @Mock
      private DistroProtocol distroProtocol;
      
      @Test
      void testHandle() throws NacosException {
          Mockito.when(distroProtocol.onVerify(Mockito.any(), Mockito.anyString())).thenReturn(false);
          DistroDataRequest distroDataRequest = new DistroDataRequest();
          distroDataRequest.setDataOperation(VERIFY);
          RequestMeta requestMeta = new RequestMeta();
          DistroDataResponse response = distroDataRequestHandler.handle(distroDataRequest, requestMeta);
          assertEquals(response.getErrorCode(), ResponseCode.FAIL.getCode());
          
          DistroData distroData = new DistroData();
          Mockito.when(distroProtocol.onSnapshot(Mockito.any())).thenReturn(distroData);
          distroDataRequest.setDataOperation(SNAPSHOT);
          DistroDataResponse response1 = distroDataRequestHandler.handle(distroDataRequest, requestMeta);
          assertEquals(response1.getDistroData(), distroData);
          
          distroDataRequest.setDataOperation(DELETE);
          Mockito.when(distroProtocol.onReceive(Mockito.any())).thenReturn(false);
          DistroDataResponse response2 = distroDataRequestHandler.handle(distroDataRequest, requestMeta);
          assertEquals(response2.getErrorCode(), ResponseCode.FAIL.getCode());
          
          distroDataRequest.setDataOperation(QUERY);
          Mockito.when(distroProtocol.onQuery(Mockito.any())).thenReturn(distroData);
          distroDataRequest.setDistroData(new DistroData());
          DistroDataResponse response3 = distroDataRequestHandler.handle(distroDataRequest, requestMeta);
          assertEquals(response3.getDistroData(), distroData);
          
          distroDataRequest.setDataOperation(ADD);
          DistroDataResponse response4 = distroDataRequestHandler.handle(distroDataRequest, requestMeta);
          assertNull(response4.getDistroData());
      }
  }
  