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.spark.network.server;
  
  import java.util.ArrayList;
  import java.util.List;
  
  import io.netty.channel.Channel;
  import org.junit.Test;
  import org.mockito.Mockito;
  
  import org.apache.spark.network.TestManagedBuffer;
  import org.apache.spark.network.buffer.ManagedBuffer;
  
  public class OneForOneStreamManagerSuite {
  
    @Test
    public void managedBuffersAreFeedWhenConnectionIsClosed() throws Exception {
      OneForOneStreamManager manager = new OneForOneStreamManager();
      List<ManagedBuffer> buffers = new ArrayList<>();
      TestManagedBuffer buffer1 = Mockito.spy(new TestManagedBuffer(10));
      TestManagedBuffer buffer2 = Mockito.spy(new TestManagedBuffer(20));
      buffers.add(buffer1);
      buffers.add(buffer2);
      long streamId = manager.registerStream("appId", buffers.iterator());
  
      Channel dummyChannel = Mockito.mock(Channel.class, Mockito.RETURNS_SMART_NULLS);
      manager.registerChannel(dummyChannel, streamId);
  
      manager.connectionTerminated(dummyChannel);
  
      Mockito.verify(buffer1, Mockito.times(1)).release();
      Mockito.verify(buffer2, Mockito.times(1)).release();
    }
  }
  