/*
 * Copyright (C) 2008 XStream Committers.
 * All rights reserved.
 *
 * The software in this package is published under the terms of the BSD
 * style license a copy of which has been included with this distribution in
 * the LICENSE.txt file.
 * 
 * Created on 28. October 2008 by Joerg Schaible
 */
package com.thoughtworks.acceptance;

import com.thoughtworks.xstream.core.JVM;

import junit.framework.TestSuite;

import javax.imageio.ImageIO;

import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.awt.image.RenderedImage;
import java.io.ByteArrayOutputStream;
import java.io.IOException;


/**
 * Tests with buffered images.
 * 
 * Note, these tests are deactivated by default. They normally work at first sight, but they are highly dangerous,
 * since some of the serialized objects contain member variables that reference native memory. Typical result is
 * a JVM crash somewhat later because of double freed memory. 
 * 
 * @author Jörg Schaible
 */
public class BufferedImagesTest extends AbstractAcceptanceTest {
    
    public static TestSuite suite() {
        final TestSuite suite = new TestSuite("BufferedImagesSuite");
        //suite.addTestSuite(BufferedImagesTest.class);
        return suite;
    }

    public void testInBWCanBeMarshalled() throws IOException {
        boolean isHeadless = Boolean.valueOf(System.getProperty("java.awt.headless", "false")).booleanValue();
        if (!isHeadless || JVM.is15()) {
            final BufferedImage image = new BufferedImage(3, 3, BufferedImage.TYPE_BYTE_BINARY);
            final Graphics2D graphics = image.createGraphics();
            graphics.setBackground(Color.WHITE);
            graphics.clearRect(0, 0, 2, 2);
            graphics.setColor(Color.BLACK);
            graphics.drawLine(0, 0, 2, 2);
    
            final ByteArrayOutputStream baosOriginal = new ByteArrayOutputStream();
            ImageIO.write(image, "tiff", baosOriginal);
    
            xstream.alias("image", BufferedImage.class);
            final String xml = xstream.toXML(image);
    
            final ByteArrayOutputStream baosSerialized = new ByteArrayOutputStream();
            ImageIO.write((RenderedImage)xstream.fromXML(xml), "tiff", baosSerialized);
    
            assertArrayEquals(baosOriginal.toByteArray(), baosSerialized.toByteArray());
        }
    }

    public void testInRGBACanBeMarshalled() throws IOException {
        boolean isHeadless = Boolean.valueOf(System.getProperty("java.awt.headless", "false")).booleanValue();
        if (!isHeadless || JVM.is15()) {
            final BufferedImage image = new BufferedImage(3, 3, BufferedImage.TYPE_INT_ARGB);
            final Graphics2D graphics = image.createGraphics();
            graphics.setBackground(Color.WHITE);
            graphics.clearRect(0, 0, 2, 2);
            graphics.setColor(Color.RED);
            graphics.drawLine(0, 0, 2, 2);
    
            final ByteArrayOutputStream baosOriginal = new ByteArrayOutputStream();
            ImageIO.write(image, "png", baosOriginal);
    
            xstream.alias("image", BufferedImage.class);
            final String xml = xstream.toXML(image);
    
            final ByteArrayOutputStream baosSerialized = new ByteArrayOutputStream();
            ImageIO.write((RenderedImage)xstream.fromXML(xml), "png", baosSerialized);
    
            assertArrayEquals(baosOriginal.toByteArray(), baosSerialized.toByteArray());
        }
    }
}