1 /*

     2  * Copyright 2009 Sun Microsystems, Inc.  All Rights Reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  */

    23 

    24 /*

    25   @test

    26   @bug 6774258

    27   @summary  api/java_awt/Component/index.html#PaintUpdate fails randomly

    28   @author dmitry.cherepanov@...: area=awt.painting

    29   @run main NoUpdateUponShow

    30 */

    31 

    32 /**

    33  * NoUpdateUponShow.java

    34  *

    35  * summary:  System-level painting operations shouldn't make call to update()

    36  */

    37 

    38 import java.awt.*;

    39 import sun.awt.SunToolkit;

    40 

    41 public class NoUpdateUponShow

    42 {

    43 

    44     static volatile boolean wasUpdate = false;

    45 

    46     private static void init()

    47     {

    48         //*** Create instructions for the user here ***

    49 

    50         String[] instructions =

    51         {

    52             "This is an AUTOMATIC test, simply wait until it is done.",

    53             "The result (passed or failed) will be shown in the",

    54             "message window below."

    55         };

    56         Sysout.createDialog( );

    57         Sysout.printInstructions( instructions );

    58 

    59 

    60         // Create the frame and the button

    61         Frame f = new Frame();

    62         f.setBounds(100, 100, 200, 200);

    63         f.setLayout(new FlowLayout());

    64         f.add(new Button() {

    65             @Override

    66             public void update(Graphics g) {

    67                 wasUpdate = true;

    68                 super.update(g);

    69             }

    70         });

    71         f.setVisible(true);

    72 

    73         ((SunToolkit)Toolkit.getDefaultToolkit()).realSync();

    74 

    75         if (wasUpdate) {

    76             fail(" Unexpected update. ");

    77         } else {

    78             pass();

    79         }

    80     }//End  init()

    81 

    82     /*****************************************************

    83      * Standard Test Machinery Section

    84      * DO NOT modify anything in this section -- it's a

    85      * standard chunk of code which has all of the

    86      * synchronisation necessary for the test harness.

    87      * By keeping it the same in all tests, it is easier

    88      * to read and understand someone else's test, as

    89      * well as insuring that all tests behave correctly

    90      * with the test harness.

    91      * There is a section following this for test-

    92      * classes

    93      ******************************************************/

    94     private static boolean theTestPassed = false;

    95     private static boolean testGeneratedInterrupt = false;

    96     private static String failureMessage = "";

    97 

    98     private static Thread mainThread = null;

    99 

   100     private static int sleepTime = 300000;

   101 

   102     // Not sure about what happens if multiple of this test are

   103     //  instantiated in the same VM.  Being static (and using

   104     //  static vars), it aint gonna work.  Not worrying about

   105     //  it for now.

   106     public static void main( String args[] ) throws InterruptedException

   107     {

   108         mainThread = Thread.currentThread();

   109         try

   110         {

   111             init();

   112         }

   113         catch( TestPassedException e )

   114         {

   115             //The test passed, so just return from main and harness will

   116             // interepret this return as a pass

   117             return;

   118         }

   119         //At this point, neither test pass nor test fail has been

   120         // called -- either would have thrown an exception and ended the

   121         // test, so we know we have multiple threads.

   122 

   123         //Test involves other threads, so sleep and wait for them to

   124         // called pass() or fail()

   125         try

   126         {

   127             Thread.sleep( sleepTime );

   128             //Timed out, so fail the test

   129             throw new RuntimeException( "Timed out after " + sleepTime/1000 + " seconds" );

   130         }

   131         catch (InterruptedException e)

   132         {

   133             //The test harness may have interrupted the test.  If so, rethrow the exception

   134             // so that the harness gets it and deals with it.

   135             if( ! testGeneratedInterrupt ) throw e;

   136 

   137             //reset flag in case hit this code more than once for some reason (just safety)

   138             testGeneratedInterrupt = false;

   139 

   140             if ( theTestPassed == false )

   141             {

   142                 throw new RuntimeException( failureMessage );

   143             }

   144         }

   145 

   146     }//main

   147 

   148     public static synchronized void setTimeoutTo( int seconds )

   149     {

   150         sleepTime = seconds * 1000;

   151     }

   152 

   153     public static synchronized void pass()

   154     {

   155         Sysout.println( "The test passed." );

   156         Sysout.println( "The test is over, hit  Ctl-C to stop Java VM" );

   157         //first check if this is executing in main thread

   158         if ( mainThread == Thread.currentThread() )

   159         {

   160             //Still in the main thread, so set the flag just for kicks,

   161             // and throw a test passed exception which will be caught

   162             // and end the test.

   163             theTestPassed = true;

   164             throw new TestPassedException();

   165         }

   166         theTestPassed = true;

   167         testGeneratedInterrupt = true;

   168         mainThread.interrupt();

   169     }//pass()

   170 

   171     public static synchronized void fail()

   172     {

   173         //test writer didn't specify why test failed, so give generic

   174         fail( "it just plain failed! :-)" );

   175     }

   176 

   177     public static synchronized void fail( String whyFailed )

   178     {

   179         Sysout.println( "The test failed: " + whyFailed );

   180         Sysout.println( "The test is over, hit  Ctl-C to stop Java VM" );

   181         //check if this called from main thread

   182         if ( mainThread == Thread.currentThread() )

   183         {

   184             //If main thread, fail now 'cause not sleeping

   185             throw new RuntimeException( whyFailed );

   186         }

   187         theTestPassed = false;

   188         testGeneratedInterrupt = true;

   189         failureMessage = whyFailed;

   190         mainThread.interrupt();

   191     }//fail()

   192 

   193 }// class ValidBounds

   194 

   195 //This exception is used to exit from any level of call nesting

   196 // when it's determined that the test has passed, and immediately

   197 // end the test.

   198 class TestPassedException extends RuntimeException

   199 {

   200 }

   201 

   202 //*********** End Standard Test Machinery Section **********

   203 

   204 

   205 //************ Begin classes defined for the test ****************

   206 

   207 // if want to make listeners, here is the recommended place for them, then instantiate

   208 //  them in init()

   209 

   210 /* Example of a class which may be written as part of a test

   211 class NewClass implements anInterface

   212  {

   213    static int newVar = 0;

   214 

   215    public void eventDispatched(AWTEvent e)

   216     {

   217       //Counting events to see if we get enough

   218       eventCount++;

   219 

   220       if( eventCount == 20 )

   221        {

   222          //got enough events, so pass

   223 

   224          ValidBounds.pass();

   225        }

   226       else if( tries == 20 )

   227        {

   228          //tried too many times without getting enough events so fail

   229 

   230          ValidBounds.fail();

   231        }

   232 

   233     }// eventDispatched()

   234 

   235  }// NewClass class

   236 

   237 */

   238 

   239 

   240 //************** End classes defined for the test *******************

   241 

   242 

   243 

   244 

   245 /****************************************************

   246  Standard Test Machinery

   247  DO NOT modify anything below -- it's a standard

   248   chunk of code whose purpose is to make user

   249   interaction uniform, and thereby make it simpler

   250   to read and understand someone else's test.

   251  ****************************************************/

   252 

   253 /**

   254  This is part of the standard test machinery.

   255  It creates a dialog (with the instructions), and is the interface

   256   for sending text messages to the user.

   257  To print the instructions, send an array of strings to Sysout.createDialog

   258   WithInstructions method.  Put one line of instructions per array entry.

   259  To display a message for the tester to see, simply call Sysout.println

   260   with the string to be displayed.

   261  This mimics System.out.println but works within the test harness as well

   262   as standalone.

   263  */

   264 

   265 class Sysout

   266 {

   267     private static TestDialog dialog;

   268 

   269     public static void createDialogWithInstructions( String[] instructions )

   270     {

   271         dialog = new TestDialog( new Frame(), "Instructions" );

   272         dialog.printInstructions( instructions );

   273         dialog.setVisible(true);

   274         println( "Any messages for the tester will display here." );

   275     }

   276 

   277     public static void createDialog( )

   278     {

   279         dialog = new TestDialog( new Frame(), "Instructions" );

   280         String[] defInstr = { "Instructions will appear here. ", "" } ;

   281         dialog.printInstructions( defInstr );

   282         dialog.setVisible(true);

   283         println( "Any messages for the tester will display here." );

   284     }

   285 

   286 

   287     public static void printInstructions( String[] instructions )

   288     {

   289         dialog.printInstructions( instructions );

   290     }

   291 

   292 

   293     public static void println( String messageIn )

   294     {

   295         dialog.displayMessage( messageIn );

   296         System.out.println(messageIn);

   297     }

   298 

   299 }// Sysout  class

   300 

   301 /**

   302   This is part of the standard test machinery.  It provides a place for the

   303    test instructions to be displayed, and a place for interactive messages

   304    to the user to be displayed.

   305   To have the test instructions displayed, see Sysout.

   306   To have a message to the user be displayed, see Sysout.

   307   Do not call anything in this dialog directly.

   308   */

   309 class TestDialog extends Dialog

   310 {

   311 

   312     TextArea instructionsText;

   313     TextArea messageText;

   314     int maxStringLength = 80;

   315 

   316     //DO NOT call this directly, go through Sysout

   317     public TestDialog( Frame frame, String name )

   318     {

   319         super( frame, name );

   320         int scrollBoth = TextArea.SCROLLBARS_BOTH;

   321         instructionsText = new TextArea( "", 15, maxStringLength, scrollBoth );

   322         add( "North", instructionsText );

   323 

   324         messageText = new TextArea( "", 5, maxStringLength, scrollBoth );

   325         add("Center", messageText);

   326 

   327         pack();

   328 

   329         setVisible(true);

   330     }// TestDialog()

   331 

   332     //DO NOT call this directly, go through Sysout

   333     public void printInstructions( String[] instructions )

   334     {

   335         //Clear out any current instructions

   336         instructionsText.setText( "" );

   337 

   338         //Go down array of instruction strings

   339 

   340         String printStr, remainingStr;

   341         for( int i=0; i < instructions.length; i++ )

   342         {

   343             //chop up each into pieces maxSringLength long

   344             remainingStr = instructions[ i ];

   345             while( remainingStr.length() > 0 )

   346             {

   347                 //if longer than max then chop off first max chars to print

   348                 if( remainingStr.length() >= maxStringLength )

   349                 {

   350                     //Try to chop on a word boundary

   351                     int posOfSpace = remainingStr.

   352                         lastIndexOf( ' ', maxStringLength - 1 );

   353 

   354                     if( posOfSpace <= 0 ) posOfSpace = maxStringLength - 1;

   355 

   356                     printStr = remainingStr.substring( 0, posOfSpace + 1 );

   357                     remainingStr = remainingStr.substring( posOfSpace + 1 );

   358                 }

   359                 //else just print

   360                 else

   361                 {

   362                     printStr = remainingStr;

   363                     remainingStr = "";

   364                 }

   365 

   366                 instructionsText.append( printStr + "\n" );

   367 

   368             }// while

   369 

   370         }// for

   371 

   372     }//printInstructions()

   373 

   374     //DO NOT call this directly, go through Sysout

   375     public void displayMessage( String messageIn )

   376     {

   377         messageText.append( messageIn + "\n" );

   378         System.out.println(messageIn);

   379     }

   380 

   381 }// TestDialog  class