/*
    * 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.eclipse.aether.transfer;
  
  import java.nio.ByteBuffer;
  
  import org.eclipse.aether.DefaultRepositorySystemSession;
  import org.eclipse.aether.RepositorySystemSession;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.*;
  
  /**
   */
  public class TransferEventTest {
  
      private static TransferResource res = new TransferResource("none", "file://nil", "void", null, null);
  
      private static RepositorySystemSession session = new DefaultRepositorySystemSession();
  
      @Test
      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
      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);
      }
  }