package org.eclipse.aether.transfer;
   
   /*
    * 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.
   */
  
  import static org.junit.Assert.*;
  
  import java.nio.ByteBuffer;
  
  import org.eclipse.aether.DefaultRepositorySystemSession;
  import org.eclipse.aether.RepositorySystemSession;
  import org.eclipse.aether.transfer.TransferEvent;
  import org.eclipse.aether.transfer.TransferResource;
  import org.junit.Test;
  
  /**
   */
  public class TransferEventTest
  {
  
      private static TransferResource res = new TransferResource( "none", "file://nil", "void", null, null );
  
      private static RepositorySystemSession session = new DefaultRepositorySystemSession();
  
      @Test
      public void testByteArrayConversion()
      {
          byte[] buffer = new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
          int length = buffer.length - 2;
          int offset = 1;
  
          TransferEvent event = new TransferEvent.Builder( session, res ).setDataBuffer( buffer, offset, length ).build();
  
          ByteBuffer bb = event.getDataBuffer();
          byte[] dst = new byte[bb.remaining()];
          bb.get( dst );
  
          byte[] expected = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 };
          assertArrayEquals( expected, dst );
      }
  
      @Test
      public void testRepeatableReadingOfDataBuffer()
      {
          byte[] data = { 0, 1, 2, 3, 4, 5, 6, 7 };
          ByteBuffer buffer = ByteBuffer.wrap( data );
  
          TransferEvent event = new TransferEvent.Builder( session, res ).setDataBuffer( buffer ).build();
  
          assertEquals( 8, event.getDataLength() );
  
          ByteBuffer eventBuffer = event.getDataBuffer();
          assertNotNull( eventBuffer );
          assertEquals( 8, eventBuffer.remaining() );
  
          byte[] eventData = new byte[8];
          eventBuffer.get( eventData );
          assertArrayEquals( data, eventData );
          assertEquals( 0, eventBuffer.remaining() );
          assertEquals( 8, event.getDataLength() );
  
          eventBuffer = event.getDataBuffer();
          assertNotNull( eventBuffer );
          assertEquals( 8, eventBuffer.remaining() );
          eventBuffer.get( eventData );
          assertArrayEquals( data, eventData );
      }
  
  }