content: /**
   * 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.apache.activemq.util;
  
  import java.io.IOException;
  
  import org.junit.Test;
  
  public class DataByteArrayOutputStreamTest {
  
      /**
       * This test case assumes that an ArrayIndexOutOfBoundsException will be thrown when the buffer fails to resize
       * @throws IOException
       */
      @Test
      public void testResize() throws IOException {
          int initSize = 64;
          DataByteArrayOutputStream out = new DataByteArrayOutputStream();
  
          fillOut(out, initSize);
          // Should resized here
          out.writeBoolean(true);
  
          fillOut(out, initSize);
          // Should resized here
          out.writeByte(1);
  
          fillOut(out, initSize);
          // Should resized here
          out.writeBytes("test");
  
          fillOut(out, initSize);
          // Should resized here
          out.writeChar('C');
  
          fillOut(out, initSize);
          // Should resized here
          out.writeChars("test");
  
          fillOut(out, initSize);
          // Should resized here
          out.writeDouble(3.1416);
  
          fillOut(out, initSize);
          // Should resized here
          out.writeFloat((float)3.1416);
  
          fillOut(out, initSize);
          // Should resized here
          out.writeInt(12345);
  
          fillOut(out, initSize);
          // Should resized here
          out.writeLong(12345);
  
          fillOut(out, initSize);
          // Should resized here
          out.writeShort(1234);
  
          fillOut(out, initSize);
          // Should resized here
          out.writeUTF("test");
  
          fillOut(out, initSize);
          // Should resized here
          out.write(1234);
  
          fillOut(out, initSize);
          // Should resized here
          out.write(new byte[10], 5, 5);
  
          fillOut(out, initSize);
          // Should resized here
          out.write(new byte[10]);
      }
  
      /**
       * This method restarts the stream to the init size, and fills it up with data
       * @param out
       * @param size
       * @throws IOException
       */
      public void fillOut(DataByteArrayOutputStream out, int size) throws IOException {
          out.restart(size);
          out.write(new byte[size]);
      }
  }
  