1 /*
2 * Copyright (c) 2009, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * 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