content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 org.apache.bookkeeper.clients.impl.kv;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertSame;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.when;
  
  import io.grpc.inprocess.InProcessChannelBuilder;
  import io.grpc.stub.StreamObserver;
  import java.util.Optional;
  import java.util.concurrent.CompletableFuture;
  import java.util.concurrent.Executors;
  import java.util.concurrent.ScheduledExecutorService;
  import java.util.concurrent.atomic.AtomicReference;
  import lombok.Cleanup;
  import org.apache.bookkeeper.clients.grpc.GrpcClientTestBase;
  import org.apache.bookkeeper.clients.impl.channel.StorageServerChannel;
  import org.apache.bookkeeper.clients.impl.container.StorageContainerChannel;
  import org.apache.bookkeeper.clients.utils.ClientConstants;
  import org.apache.bookkeeper.common.concurrent.FutureUtils;
  import org.apache.bookkeeper.stream.proto.kv.rpc.DeleteRangeRequest;
  import org.apache.bookkeeper.stream.proto.kv.rpc.DeleteRangeResponse;
  import org.apache.bookkeeper.stream.proto.kv.rpc.ResponseHeader;
  import org.apache.bookkeeper.stream.proto.kv.rpc.TableServiceGrpc.TableServiceImplBase;
  import org.apache.bookkeeper.stream.proto.storage.StatusCode;
  import org.junit.Test;
  
  /**
   * Unit test of {@link DeleteRequestProcessor}.
   */
  public class DeleteRequestProcessorTest extends GrpcClientTestBase {
  
      @Override
      protected void doSetup() throws Exception {
      }
  
      @Override
      protected void doTeardown() throws Exception {
      }
  
      protected DeleteRangeResponse newSuccessResponse() {
          return DeleteRangeResponse.newBuilder()
              .setHeader(ResponseHeader.newBuilder()
                  .setCode(StatusCode.SUCCESS)
                  .build())
              .build();
      }
  
      protected DeleteRangeRequest newRequest() {
          return DeleteRangeRequest.newBuilder()
              .build();
      }
  
      @Test
      public void testProcess() throws Exception {
          @Cleanup("shutdown") ScheduledExecutorService scheduler = Executors.newSingleThreadScheduledExecutor();
  
          StorageContainerChannel scChannel = mock(StorageContainerChannel.class);
  
          CompletableFuture<StorageServerChannel> serverChannelFuture = FutureUtils.createFuture();
          when(scChannel.getStorageContainerChannelFuture()).thenReturn(serverChannelFuture);
  
          DeleteRangeResponse response = newSuccessResponse();
  
          AtomicReference<Object> receivedRequest = new AtomicReference<>(null);
          TableServiceImplBase tableService = new TableServiceImplBase() {
  
              @Override
              public void delete(DeleteRangeRequest request,
                                 StreamObserver<DeleteRangeResponse> responseObserver) {
                  receivedRequest.set(request);
                  complete(responseObserver);
              }
  
              private void complete(StreamObserver<DeleteRangeResponse> responseStreamObserver) {
                  responseStreamObserver.onNext(response);
                  responseStreamObserver.onCompleted();
              }
          };
          serviceRegistry.addService(tableService.bindService());
          StorageServerChannel ssChannel = new StorageServerChannel(
              InProcessChannelBuilder.forName(serverName).directExecutor().build(),
              Optional.empty());
          serverChannelFuture.complete(ssChannel);
  
          DeleteRangeRequest request = newRequest();
  
          DeleteRequestProcessor<String> processor = DeleteRequestProcessor.of(
              request,
              resp -> "test",
              scChannel,
              scheduler,
              ClientConstants.DEFAULT_INFINIT_BACKOFF_POLICY);
          assertEquals("test", FutureUtils.result(processor.process()));
          assertSame(request, receivedRequest.get());
      }
  
  }
  