content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.grpc;
  
  import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertNull;
  
  import alluxio.network.protocol.databuffer.DataBuffer;
  import alluxio.network.protocol.databuffer.NettyDataBuffer;
  
  import com.google.protobuf.ByteString;
  import io.netty.buffer.Unpooled;
  import org.junit.Test;
  
  /**
   * Unit tests for {@link WriteRequestMarshaller}.
   */
  public final class WriteRequestMarshallerTest {
  
    @Test
    public void close() {
      WriteRequestMarshaller marshaller = new WriteRequestMarshaller();
  
      WriteRequest msg1 = buildRequest("test1".getBytes());
      marshaller.offerBuffer(new NettyDataBuffer(
          Unpooled.wrappedBuffer(msg1.getChunk().getData().asReadOnlyByteBuffer())), msg1);
  
      DataBuffer data = marshaller.pollBuffer(msg1);
      assertNotNull(data);
      data.release();
  
      // close the marshaller
      marshaller.close();
  
      WriteRequest msg2 = buildRequest("test2".getBytes());
      marshaller.offerBuffer(new NettyDataBuffer(
          Unpooled.wrappedBuffer(msg2.getChunk().getData().asReadOnlyByteBuffer())), msg2);
  
      // No buffers should not exist, since the marshaller is already closed
      assertNull(marshaller.pollBuffer(msg1));
      assertNull(marshaller.pollBuffer(msg2));
    }
  
    private WriteRequest buildRequest(byte[] data) {
      return WriteRequest.newBuilder().setChunk(Chunk.newBuilder().setData(
          ByteString.copyFrom(data))).build();
    }
  }
  