test/jdk/java/awt/Toolkit/RealSync/RealSyncOnEDT.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 6541903
  @summary Tests if the realSync() throws the IllegalThreadException while invoked on the EDT
  @author anthony.petrov: area=awt.toolkit
  @modules java.desktop/sun.awt
  @run main/timeout=10 RealSyncOnEDT
*/


/**
 * RealSyncOnEDT.java
 *
 * summary: Tests if the realSync() throws the IllegalThreadException while invoked on the EDT
 */

import java.awt.*;
import java.awt.event.*;


public class RealSyncOnEDT
{
    static Exception exceptionCaught = null;

    private static void init()
    {
        // Try to invoke the realSync() on the EDT
        try {
            EventQueue.invokeAndWait(new Runnable() {
                public void run() {
                    Frame frame = new Frame("Test frame");

                    frame.setSize(100, 100);
                    frame.setVisible(true);

                    try {
                        ((sun.awt.SunToolkit)java.awt.Toolkit.getDefaultToolkit()).realSync();
                    } catch (Exception e) {
                        exceptionCaught = e;
                    }
                }
            });
        } catch (InterruptedException e) {
            e.printStackTrace();
            fail("Unexpected exception caught: " + e);
            return;
        } catch (java.lang.reflect.InvocationTargetException e) {
            e.printStackTrace();
            fail("Unexpected exception caught: " + e);
            return;
        }

        // We expect the IllegalThreadException to be thrown.
        if (exceptionCaught == null) {
            fail("No exception was thrown by the realSync() method.");
            return;
        } else if (!exceptionCaught.getClass().getName().equals("sun.awt.SunToolkit$IllegalThreadException")) {
            exceptionCaught.printStackTrace();
            fail("Unexpected exception caught while invoking the realSync(): " + exceptionCaught);
            return;
        }
        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 RealSyncOnEDT

//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
{
}