File: ImageEncoderTest.java

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/*
 * This program is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
 * Foundation.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
 * or from the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 *
 * Copyright (c) 2009 Pentaho Corporation.  All rights reserved.
 */

package org.pentaho.reporting.libraries.base.encoder;

import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.IOException;

import junit.framework.TestCase;

/**
 * Todo: Document Me
 *
 * @author Thomas Morgner
 */
public class ImageEncoderTest extends TestCase
{
  public ImageEncoderTest()
  {
  }

  public ImageEncoderTest(final String s)
  {
    super(s);
  }

  protected void setUp() throws Exception
  {
  }

  public void testPngEncoderAvailable() throws UnsupportedEncoderException, IOException
  {
    assertTrue(ImageEncoderRegistry.getInstance().isEncoderAvailable("image/png"));
    final ImageEncoder imageEncoder = ImageEncoderRegistry.getInstance().createEncoder("image/png");
    assertNotNull(imageEncoder);
    final ByteArrayOutputStream bout = new ByteArrayOutputStream();
    imageEncoder.encodeImage(new BufferedImage(10, 10, BufferedImage.TYPE_INT_ARGB), bout, 0.75f, false);
    assertTrue(bout.toByteArray().length > 0);
  }

  public void testJpegEncoderWorks() throws UnsupportedEncoderException, IOException
  {

    if (ImageEncoderRegistry.getInstance().isEncoderAvailable("image/jpg") == false)
    {
      return;
    }
    
    final ImageEncoder imageEncoder = ImageEncoderRegistry.getInstance().createEncoder("image/jpg");
    assertNotNull(imageEncoder);
    final ByteArrayOutputStream bout = new ByteArrayOutputStream();
    imageEncoder.encodeImage(new BufferedImage(10, 10, BufferedImage.TYPE_INT_ARGB), bout, 0.75f, false);
    assertTrue(bout.toByteArray().length > 0);
  }
}