test/jdk/java/awt/Frame/LayoutOnMaximizeTest/LayoutOnMaximizeTest.java

/*
 * Copyright (c) 2006, 2018, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code 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 General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * questions.
 */

/*
  @test
  @key headful
  @bug 6355340
  @summary Test correctness of laying out the contents of a frame on maximize
  @author anthony.petrov@...: area=awt.toplevel
  @library ../../regtesthelpers
  @build Util
  @run main LayoutOnMaximizeTest
*/


/**
 * LayoutOnMaximizeTest.java
 *
 * summary:  tests the correctness of laying out the contents of a frame on maximize
 */

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
import test.java.awt.regtesthelpers.Util;




//*** global search and replace LayoutOnMaximizeTest with name of the test ***

public class LayoutOnMaximizeTest
{

    //*** test-writer defined static variables go here ***


    private static void init() {
        // We must be sure that the Size system command is exactly the 3rd one in the System menu.
        System.out.println("NOTE: The test is known to work correctly with English MS Windows only.");


        String s = Toolkit.getDefaultToolkit().getClass().getName();

        // This is Windows-only test
        if (!s.contains("WToolkit")) {
            pass();
        }

        // MAXIMIZED_BOTH is known to be supported on MS Windows.
        if (!Toolkit.getDefaultToolkit().isFrameStateSupported(Frame.MAXIMIZED_BOTH)) {
            fail("Toolkit doesn't support the Frame.MAXIMIZED_BOTH extended state.");
        }

        final Frame frame = new Frame("Test Frame");

        // Add some components to check their position later
        JPanel panel = new JPanel();
        panel.setBackground(Color.RED);

        JTextField jf = new JTextField (10);
        JTextField jf1 = new JTextField (10);
        JButton jb = new JButton("Test");

        panel.add(jf);
        panel.add(jf1);
        panel.add(jb);
        frame.add(panel);

        frame.setSize(400, 400);
        frame.setVisible(true);

        Robot robot = Util.createRobot();
        robot.setAutoDelay(20);

        // To be sure the window is shown and packed
        Util.waitForIdle(robot);

        // The initial JTextField position. After maximization it's supposed to be changed.
        Point loc1 = jf1.getLocation();

        System.out.println("The initial position of the JTextField is: " + loc1);

        // The point to move mouse pointer inside the frame
        Point pt = frame.getLocation();

        // Alt-Space opens System menu
        robot.keyPress(KeyEvent.VK_ALT);
        robot.keyPress(KeyEvent.VK_SPACE);
        robot.keyRelease(KeyEvent.VK_SPACE);
        robot.keyRelease(KeyEvent.VK_ALT);


        // Two "down arrow" presses move the menu selection to the Size menu item.
        for (int i = 0; i < 2; i++) {
            robot.keyPress(KeyEvent.VK_DOWN);
            robot.keyRelease(KeyEvent.VK_DOWN);
        }

        // And finally select the Size command
        robot.keyPress(KeyEvent.VK_ENTER);
        robot.keyRelease(KeyEvent.VK_ENTER);

        Util.waitForIdle(robot);

        // Now move the mouse pointer somewhere inside the frame.
        robot.mouseMove(pt.x + 95, pt.y + 70);

        // And click once we are inside to imitate the canceling of the size operation.
        robot.mousePress( InputEvent.BUTTON1_MASK );
        robot.mouseRelease( InputEvent.BUTTON1_MASK );
        Util.waitForIdle(robot);

        // Now we maximize the frame
        frame.setExtendedState(Frame.MAXIMIZED_BOTH);


        Util.waitForIdle(robot);

        // And check whether the location of the JTextField has changed.
        Point loc2 = jf1.getLocation();
        System.out.println("Position of the JTextField after maximization is: " + loc2);

        // Location of the component changed if relayouting has happened.

        if (loc2.equals(loc1)) {
            fail("Location of a component has not been changed.");
            return;
        }

        LayoutOnMaximizeTest.pass();

    }//End  init()



    /*****************************************************
     * Standard Test Machinery Section
     * DO NOT modify anything in this section -- it's a
     * standard chunk of code which has all of the
     * synchronisation necessary for the test harness.
     * By keeping it the same in all tests, it is easier
     * to read and understand someone else's test, as
     * well as insuring that all tests behave correctly
     * with the test harness.
     * There is a section following this for test-
     * classes
     ******************************************************/
    private static boolean theTestPassed = false;
    private static boolean testGeneratedInterrupt = false;
    private static String failureMessage = "";

    private static Thread mainThread = null;

    private static int sleepTime = 300000;

    // Not sure about what happens if multiple of this test are
    //  instantiated in the same VM.  Being static (and using
    //  static vars), it aint gonna work.  Not worrying about
    //  it for now.
    public static void main( String args[] ) throws InterruptedException
    {
        mainThread = Thread.currentThread();
        try
        {
            init();
        }
        catch( TestPassedException e )
        {
            //The test passed, so just return from main and harness will
            // interepret this return as a pass
            return;
        }
        //At this point, neither test pass nor test fail has been
        // called -- either would have thrown an exception and ended the
        // test, so we know we have multiple threads.

        //Test involves other threads, so sleep and wait for them to
        // called pass() or fail()
        try
        {
            Thread.sleep( sleepTime );
            //Timed out, so fail the test
            throw new RuntimeException( "Timed out after " + sleepTime/1000 + " seconds" );
        }
        catch (InterruptedException e)
        {
            //The test harness may have interrupted the test.  If so, rethrow the exception
            // so that the harness gets it and deals with it.
            if( ! testGeneratedInterrupt ) throw e;

            //reset flag in case hit this code more than once for some reason (just safety)
            testGeneratedInterrupt = false;

            if ( theTestPassed == false )
            {
                throw new RuntimeException( failureMessage );
            }
        }

    }//main

    public static synchronized void setTimeoutTo( int seconds )
    {
        sleepTime = seconds * 1000;
    }

    public static synchronized void pass()
    {
        System.out.println( "The test passed." );
        System.out.println( "The test is over, hit  Ctl-C to stop Java VM" );
        //first check if this is executing in main thread
        if ( mainThread == Thread.currentThread() )
        {
            //Still in the main thread, so set the flag just for kicks,
            // and throw a test passed exception which will be caught
            // and end the test.
            theTestPassed = true;
            throw new TestPassedException();
        }
        theTestPassed = true;
        testGeneratedInterrupt = true;
        mainThread.interrupt();
    }//pass()

    public static synchronized void fail()
    {
        //test writer didn't specify why test failed, so give generic
        fail( "it just plain failed! :-)" );
    }

    public static synchronized void fail( String whyFailed )
    {
        System.out.println( "The test failed: " + whyFailed );
        System.out.println( "The test is over, hit  Ctl-C to stop Java VM" );
        //check if this called from main thread
        if ( mainThread == Thread.currentThread() )
        {
            //If main thread, fail now 'cause not sleeping
            throw new RuntimeException( whyFailed );
        }
        theTestPassed = false;
        testGeneratedInterrupt = true;
        failureMessage = whyFailed;
        mainThread.interrupt();
    }//fail()

}// class LayoutOnMaximizeTest

//This exception is used to exit from any level of call nesting
// when it's determined that the test has passed, and immediately
// end the test.
class TestPassedException extends RuntimeException
{
}