test/jdk/java/awt/Paint/bug8024864.java

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 * 2 along with this work; if not, write to the Free Software Foundation,
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/*
 * @test
 * @key headful
 * @bug 8024864 8031422
 * @summary [macosx] Problems with rendering of controls
 * @author Petr Pchelko
 * @library ../regtesthelpers
 * @build Util
 * @run main bug8024864
 */

import javax.swing.*;
import java.awt.*;

import test.java.awt.regtesthelpers.Util;

public class bug8024864
{
    private static final int REPEATS = 30;

    private static volatile JFrame frame;

    private static void showTestUI() {
        frame = new JFrame();
        frame.setBackground(Color.green);
        JPanel p = new JPanel();
        p.setBackground(Color.red);
        JLabel l = new JLabel("Test!");
        p.add(l);
        frame.add(p);
        frame.pack();
        frame.setLocation(100,100);
        frame.setVisible(true);
    }

    public static void main(String[] args) throws Exception
    {
        Robot r = new Robot();
        for (int i = 0; i < REPEATS; i++) {
            try {
                SwingUtilities.invokeAndWait(bug8024864::showTestUI);
                //Thread.sleep(100);
                Util.waitTillShown(frame);
                Util.waitForIdle(r);

                Dimension frameSize = frame.getSize();
                Point loc = new Point(frameSize.width - 15, frameSize.height - 15);
                SwingUtilities.convertPointToScreen(loc, frame);
                Color c = r.getPixelColor(loc.x, loc.y);

                if (c.getGreen() > 200) {
                    throw new RuntimeException("TEST FAILED. Unexpected pixel color " + c);
                }

            } finally {
                if (frame != null) {
                    frame.dispose();
                }
                Util.waitForIdle(r);
            }
        }
    }
}