/*
    * ====================================================================
    * 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.http.impl.io;
  
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.OutputStream;
  
  import org.apache.http.impl.SessionOutputBufferMock;
  import org.junit.Assert;
  import org.junit.Test;
  
  public class TestContentLengthOutputStream {
  
      @Test
      public void testConstructors() throws Exception {
          final ContentLengthOutputStream in = new ContentLengthOutputStream(
                  new SessionOutputBufferMock(), 10L);
          in.close();
          try {
              new ContentLengthOutputStream(null, 10L);
              Assert.fail("IllegalArgumentException should have been thrown");
          } catch (final IllegalArgumentException ex) {
              // expected
          }
          try {
              new ContentLengthOutputStream(new SessionOutputBufferMock(), -10);
              Assert.fail("IllegalArgumentException should have been thrown");
          } catch (final IllegalArgumentException ex) {
              // expected
          }
      }
  
      @Test
      public void testBasics() throws Exception {
          final ByteArrayOutputStream buffer = new ByteArrayOutputStream();
          final SessionOutputBufferMockessionOutputBufferMock">SessionOutputBufferMock datatransmitter = new SessionOutputBufferMock(buffer);
          final OutputStream out = new ContentLengthOutputStream(datatransmitter, 15L);
  
          final byte[] tmp = new byte[10];
          out.write(tmp, 0, 10);
          out.write(1);
          out.write(tmp, 0, 10);
          out.write(tmp, 0, 10);
          out.write(tmp);
          out.write(1);
          out.write(2);
          out.flush();
          out.close();
          final byte[] data = datatransmitter.getData();
          Assert.assertEquals(15, data.length);
      }
  
      @Test
      public void testClose() throws Exception {
          final ByteArrayOutputStream buffer = new ByteArrayOutputStream();
          final SessionOutputBufferMockessionOutputBufferMock">SessionOutputBufferMock datatransmitter = new SessionOutputBufferMock(buffer);
          final OutputStream out = new ContentLengthOutputStream(datatransmitter, 15L);
          out.close();
          out.close();
          final byte[] tmp = new byte[10];
          try {
              out.write(tmp);
              Assert.fail("IOException should have been thrown");
          } catch (final IOException ex) {
              // expected
          }
          try {
              out.write(1);
              Assert.fail("IOException should have been thrown");
          } catch (final IOException ex) {
              // expected
          }
      }
 
 }