/*
    * ====================================================================
    * 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.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   */
  
  package org.apache.hc.core5.http.io.entity;
  
  import java.io.ByteArrayOutputStream;
  import java.nio.ByteBuffer;
  import java.nio.charset.StandardCharsets;
  
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.Test;
  
  /**
   * Unit tests for {@link ByteBufferEntity}.
   *
   */
  public class TestByteBufferEntity {
  
      @Test
      public void testBasics() throws Exception {
          final ByteBuffer bytes = ByteBuffer.wrap("Message content".getBytes(StandardCharsets.US_ASCII));
          try (final ByteBufferEntity httpentity = new ByteBufferEntity(bytes, null)) {
  
              Assertions.assertEquals(bytes.capacity(), httpentity.getContentLength());
              Assertions.assertNotNull(httpentity.getContent());
              Assertions.assertFalse(httpentity.isRepeatable());
              Assertions.assertFalse(httpentity.isStreaming());
          }
      }
  
  
      @Test
      public void testWriteTo() throws Exception {
          final ByteBuffer bytes = ByteBuffer.wrap("Message content".getBytes(StandardCharsets.US_ASCII));
          try (final ByteBufferEntity httpentity = new ByteBufferEntity(bytes, null)) {
  
              ByteArrayOutputStream out = new ByteArrayOutputStream();
              httpentity.writeTo(out);
              byte[] bytes2 = out.toByteArray();
              Assertions.assertNotNull(bytes2);
              Assertions.assertEquals(bytes.capacity(), bytes2.length);
              bytes.position(0);
              for (int i = 0; i < bytes2.length; i++) {
                  Assertions.assertEquals(bytes.get(i), bytes2[i]);
              }
  
              out = new ByteArrayOutputStream();
              httpentity.writeTo(out);
              bytes2 = out.toByteArray();
              Assertions.assertNotNull(bytes2);
              Assertions.assertEquals(bytes.capacity(), bytes2.length);
              bytes.position(0);
              for (int i = 0; i < bytes.capacity(); i++) {
                  Assertions.assertEquals(bytes.get(i), bytes2[i]);
              }
  
              Assertions.assertThrows(NullPointerException.class, () -> httpentity.writeTo(null));
          }
      }
  }