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
40 public class NoUpdateUponShow
41 {
42
43 static volatile boolean wasUpdate = false;
44
45 private static void init()
46 {
47 //*** Create instructions for the user here ***
48
49 String[] instructions =
50 {
51 "This is an AUTOMATIC test, simply wait until it is done.",
52 "The result (passed or failed) will be shown in the",
53 "message window below."
54 };
55 Sysout.createDialog( );
56 Sysout.printInstructions( instructions );
57
58
59 // Create the frame and the button
60 Frame f = new Frame();
61 f.setBounds(100, 100, 200, 200);
62 f.setLayout(new FlowLayout());
63 f.add(new Button() {
64 @Override
65 public void update(Graphics g) {
66 wasUpdate = true;
67 super.update(g);
68 }
69 });
70 f.setVisible(true);
71
72 try {
73 Robot robot = new Robot();
74 robot.waitForIdle();
75 }catch(Exception ex) {
76 ex.printStackTrace();
77 throw new RuntimeException("Unexpected failure");
78 }
79
80 if (wasUpdate) {
81 fail(" Unexpected update. ");
82 } else {
83 pass();
84 }
85 }//End init()
86
87 /*****************************************************
88 * Standard Test Machinery Section
89 * DO NOT modify anything in this section -- it's a
90 * standard chunk of code which has all of the
91 * synchronisation necessary for the test harness.
92 * By keeping it the same in all tests, it is easier
93 * to read and understand someone else's test, as
94 * well as insuring that all tests behave correctly
95 * with the test harness.
96 * There is a section following this for test-
97 * classes
98 ******************************************************/
99 private static boolean theTestPassed = false;
100 private static boolean testGeneratedInterrupt = false;
101 private static String failureMessage = "";
102
103 private static Thread mainThread = null;
104
105 private static int sleepTime = 300000;
106
107 // Not sure about what happens if multiple of this test are
108 // instantiated in the same VM. Being static (and using
109 // static vars), it aint gonna work. Not worrying about
110 // it for now.
111 public static void main( String args[] ) throws InterruptedException
112 {
113 mainThread = Thread.currentThread();
114 try
115 {
116 init();
117 }
118 catch( TestPassedException e )
119 {
120 //The test passed, so just return from main and harness will
121 // interepret this return as a pass
122 return;
123 }
124 //At this point, neither test pass nor test fail has been
125 // called -- either would have thrown an exception and ended the
126 // test, so we know we have multiple threads.
127
128 //Test involves other threads, so sleep and wait for them to
129 // called pass() or fail()
130 try
131 {
132 Thread.sleep( sleepTime );
133 //Timed out, so fail the test
134 throw new RuntimeException( "Timed out after " + sleepTime/1000 + " seconds" );
135 }
136 catch (InterruptedException e)
137 {
138 //The test harness may have interrupted the test. If so, rethrow the exception
139 // so that the harness gets it and deals with it.
140 if( ! testGeneratedInterrupt ) throw e;
141
142 //reset flag in case hit this code more than once for some reason (just safety)
143 testGeneratedInterrupt = false;
144
145 if ( theTestPassed == false )
146 {
147 throw new RuntimeException( failureMessage );
148 }
149 }
150
151 }//main
152
153 public static synchronized void setTimeoutTo( int seconds )
154 {
155 sleepTime = seconds * 1000;
156 }
157
158 public static synchronized void pass()
159 {
160 Sysout.println( "The test passed." );
161 Sysout.println( "The test is over, hit Ctl-C to stop Java VM" );
162 //first check if this is executing in main thread
163 if ( mainThread == Thread.currentThread() )
164 {
165 //Still in the main thread, so set the flag just for kicks,
166 // and throw a test passed exception which will be caught
167 // and end the test.
168 theTestPassed = true;
169 throw new TestPassedException();
170 }
171 theTestPassed = true;
172 testGeneratedInterrupt = true;
173 mainThread.interrupt();
174 }//pass()
175
176 public static synchronized void fail()
177 {
178 //test writer didn't specify why test failed, so give generic
179 fail( "it just plain failed! :-)" );
180 }
181
182 public static synchronized void fail( String whyFailed )
183 {
184 Sysout.println( "The test failed: " + whyFailed );
185 Sysout.println( "The test is over, hit Ctl-C to stop Java VM" );
186 //check if this called from main thread
187 if ( mainThread == Thread.currentThread() )
188 {
189 //If main thread, fail now 'cause not sleeping
190 throw new RuntimeException( whyFailed );
191 }
192 theTestPassed = false;
193 testGeneratedInterrupt = true;
194 failureMessage = whyFailed;
195 mainThread.interrupt();
196 }//fail()
197
198 }// class ValidBounds
199
200 //This exception is used to exit from any level of call nesting
201 // when it's determined that the test has passed, and immediately
202 // end the test.
203 class TestPassedException extends RuntimeException
204 {
205 }
206
207 //*********** End Standard Test Machinery Section **********
208
209
210 //************ Begin classes defined for the test ****************
211
212 // if want to make listeners, here is the recommended place for them, then instantiate
213 // them in init()
214
215 /* Example of a class which may be written as part of a test
216 class NewClass implements anInterface
217 {
218 static int newVar = 0;
219
220 public void eventDispatched(AWTEvent e)
221 {
222 //Counting events to see if we get enough
223 eventCount++;
224
225 if( eventCount == 20 )
226 {
227 //got enough events, so pass
228
229 ValidBounds.pass();
230 }
231 else if( tries == 20 )
232 {
233 //tried too many times without getting enough events so fail
234
235 ValidBounds.fail();
236 }
237
238 }// eventDispatched()
239
240 }// NewClass class
241
242 */
243
244
245 //************** End classes defined for the test *******************
246
247
248
249
250 /****************************************************
251 Standard Test Machinery
252 DO NOT modify anything below -- it's a standard
253 chunk of code whose purpose is to make user
254 interaction uniform, and thereby make it simpler
255 to read and understand someone else's test.
256 ****************************************************/
257
258 /**
259 This is part of the standard test machinery.
260 It creates a dialog (with the instructions), and is the interface
261 for sending text messages to the user.
262 To print the instructions, send an array of strings to Sysout.createDialog
263 WithInstructions method. Put one line of instructions per array entry.
264 To display a message for the tester to see, simply call Sysout.println
265 with the string to be displayed.
266 This mimics System.out.println but works within the test harness as well
267 as standalone.
268 */
269
270 class Sysout
271 {
272 private static TestDialog dialog;
273
274 public static void createDialogWithInstructions( String[] instructions )
275 {
276 dialog = new TestDialog( new Frame(), "Instructions" );
277 dialog.printInstructions( instructions );
278 dialog.setVisible(true);
279 println( "Any messages for the tester will display here." );
280 }
281
282 public static void createDialog( )
283 {
284 dialog = new TestDialog( new Frame(), "Instructions" );
285 String[] defInstr = { "Instructions will appear here. ", "" } ;
286 dialog.printInstructions( defInstr );
287 dialog.setVisible(true);
288 println( "Any messages for the tester will display here." );
289 }
290
291
292 public static void printInstructions( String[] instructions )
293 {
294 dialog.printInstructions( instructions );
295 }
296
297
298 public static void println( String messageIn )
299 {
300 dialog.displayMessage( messageIn );
301 System.out.println(messageIn);
302 }
303
304 }// Sysout class
305
306 /**
307 This is part of the standard test machinery. It provides a place for the
308 test instructions to be displayed, and a place for interactive messages
309 to the user to be displayed.
310 To have the test instructions displayed, see Sysout.
311 To have a message to the user be displayed, see Sysout.
312 Do not call anything in this dialog directly.
313 */
314 class TestDialog extends Dialog
315 {
316
317 TextArea instructionsText;
318 TextArea messageText;
319 int maxStringLength = 80;
320
321 //DO NOT call this directly, go through Sysout
322 public TestDialog( Frame frame, String name )
323 {
324 super( frame, name );
325 int scrollBoth = TextArea.SCROLLBARS_BOTH;
326 instructionsText = new TextArea( "", 15, maxStringLength, scrollBoth );
327 add( "North", instructionsText );
328
329 messageText = new TextArea( "", 5, maxStringLength, scrollBoth );
330 add("Center", messageText);
331
332 pack();
333
334 setVisible(true);
335 }// TestDialog()
336
337 //DO NOT call this directly, go through Sysout
338 public void printInstructions( String[] instructions )
339 {
340 //Clear out any current instructions
341 instructionsText.setText( "" );
342
343 //Go down array of instruction strings
344
345 String printStr, remainingStr;
346 for( int i=0; i < instructions.length; i++ )
347 {
348 //chop up each into pieces maxSringLength long
349 remainingStr = instructions[ i ];
350 while( remainingStr.length() > 0 )
351 {
352 //if longer than max then chop off first max chars to print
353 if( remainingStr.length() >= maxStringLength )
354 {
355 //Try to chop on a word boundary
356 int posOfSpace = remainingStr.
357 lastIndexOf( ' ', maxStringLength - 1 );
358
359 if( posOfSpace <= 0 ) posOfSpace = maxStringLength - 1;
360
361 printStr = remainingStr.substring( 0, posOfSpace + 1 );
362 remainingStr = remainingStr.substring( posOfSpace + 1 );
363 }
364 //else just print
365 else
366 {
367 printStr = remainingStr;
368 remainingStr = "";
369 }
370
371 instructionsText.append( printStr + "\n" );
372
373 }// while
374
375 }// for
376
377 }//printInstructions()
378
379 //DO NOT call this directly, go through Sysout
380 public void displayMessage( String messageIn )
381 {
382 messageText.append( messageIn + "\n" );
383 System.out.println(messageIn);
384 }
385
386 }// TestDialog class