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.core.remote.grpc;
  
  import com.alibaba.nacos.api.grpc.auto.BiRequestStreamGrpc;
  import com.alibaba.nacos.api.grpc.auto.Payload;
  import com.alibaba.nacos.api.remote.request.ConnectResetRequest;
  import com.alibaba.nacos.api.remote.request.ConnectionSetupRequest;
  import com.alibaba.nacos.api.remote.request.RequestMeta;
  import com.alibaba.nacos.api.remote.response.ConnectResetResponse;
  import com.alibaba.nacos.api.remote.response.Response;
  import com.alibaba.nacos.common.remote.PayloadRegistry;
  import com.alibaba.nacos.common.remote.client.grpc.GrpcUtils;
  import com.alibaba.nacos.core.remote.ConnectionManager;
  import com.asarkar.grpc.test.GrpcCleanupExtension;
  import com.asarkar.grpc.test.Resources;
  import io.grpc.Context;
  import io.grpc.Contexts;
  import io.grpc.ManagedChannel;
  import io.grpc.Metadata;
  import io.grpc.Server;
  import io.grpc.ServerCall;
  import io.grpc.ServerCallHandler;
  import io.grpc.ServerInterceptor;
  import io.grpc.inprocess.InProcessChannelBuilder;
  import io.grpc.inprocess.InProcessServerBuilder;
  import io.grpc.stub.StreamObserver;
  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.mockito.junit.jupiter.MockitoExtension;
  
  import java.io.IOException;
  import java.time.Duration;
  import java.util.UUID;
  
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.junit.jupiter.api.Assertions.fail;
  
  /**
   * {@link GrpcBiStreamRequestAcceptor} unit test.
   *
   * @author chenglu
   * @date 2021-06-30 17:11
   */
  @ExtendWith({MockitoExtension.class, GrpcCleanupExtension.class})
  public class GrpcBiStreamRequestAcceptorTest {
      
      public BiRequestStreamGrpc.BiRequestStreamStub streamStub;
      
      @Mock
      private ConnectionManager connectionManager;
      
      @InjectMocks
      private GrpcBiStreamRequestAcceptor acceptor;
      
      private StreamObserver<Payload> payloadStreamObserver;
      
      private String connectId = UUID.randomUUID().toString();
      
      private String requestId = UUID.randomUUID().toString();
      
      @BeforeEach
      void setUp(Resources resources) throws IOException {
          PayloadRegistry.init();
          String serverName = InProcessServerBuilder.generateName();
          String remoteIp = "127.0.0.1";
          Server mockServer = InProcessServerBuilder.forName(serverName).directExecutor().addService(acceptor)
                  .intercept(new ServerInterceptor() {
                      @Override
                      public <R, S> ServerCall.Listener<R> interceptCall(ServerCall<R, S> serverCall, Metadata metadata,
                              ServerCallHandler<R, S> serverCallHandler) {
                          Context ctx = Context.current().withValue(GrpcServerConstants.CONTEXT_KEY_CONN_ID, UUID.randomUUID().toString())
                                  .withValue(GrpcServerConstants.CONTEXT_KEY_CONN_LOCAL_PORT, 1234)
                                  .withValue(GrpcServerConstants.CONTEXT_KEY_CONN_REMOTE_PORT, 8948)
                                  .withValue(GrpcServerConstants.CONTEXT_KEY_CONN_REMOTE_IP, remoteIp);
                          return Contexts.interceptCall(ctx, serverCall, metadata, serverCallHandler);
                      }
                  }).build();
          resources.register(mockServer.start(), Duration.ofSeconds(20));
          ManagedChannel channel = InProcessChannelBuilder.forName(serverName).directExecutor().build();
          resources.register(channel, Duration.ofSeconds(20L));
          streamStub = BiRequestStreamGrpc.newStub(channel);
          Mockito.doReturn(true).when(connectionManager).traced(Mockito.any());
      }
      
      @Test
      void testConnectionSetupRequest() {
          StreamObserver<Payload> streamObserver = new StreamObserver<Payload>() {
              @Override
              public void onNext(Payload payload) {
                  System.out.println("Receive data from server, data: " + payload);
                  assertNotNull(payload);
                  ConnectResetRequest connectResetRequest = (ConnectResetRequest) GrpcUtils.parse(payload);
                  Response response = new ConnectResetResponse();
                  response.setRequestId(connectResetRequest.getRequestId());
                  Payload res = GrpcUtils.convert(response);
                  payloadStreamObserver.onNext(res);
                  payloadStreamObserver.onCompleted();
              }
              
              @Override
              public void onError(Throwable throwable) {
                  fail(throwable.getMessage());
              }
              
              @Override
              public void onCompleted() {
                  System.out.println("complete");
              }
          };
          payloadStreamObserver = streamStub.requestBiStream(streamObserver);
          RequestMeta metadata = new RequestMeta();
          metadata.setClientIp("127.0.0.1");
          metadata.setConnectionId(connectId);
          
          ConnectionSetupRequest connectionSetupRequest = new ConnectionSetupRequest();
          connectionSetupRequest.setRequestId(requestId);
          connectionSetupRequest.setClientVersion("2.0.3");
          Payload payload = GrpcUtils.convert(connectionSetupRequest, metadata);
          payloadStreamObserver.onNext(payload);
      }
  }
  