1 /*
2 * Copyright (c) 2009, 2016, 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 @key headful
27 @bug 6774258
28 @summary api/java_awt/Component/index.html#PaintUpdate fails randomly
29 @author dmitry.cherepanov@...: area=awt.painting
30 @run main NoUpdateUponShow
31 */
32
33 /**
34 * NoUpdateUponShow.java
35 *
36 * summary: System-level painting operations shouldn't make call to update()
37 */
38
39 import java.awt.*;
40 import sun.awt.SunToolkit;
41
42 public class NoUpdateUponShow
43 {
44
45 static volatile boolean wasUpdate = false;
46
47 private static void init()
48 {
49 //*** Create instructions for the user here ***
50
51 String[] instructions =
52 {
53 "This is an AUTOMATIC test, simply wait until it is done.",
54 "The result (passed or failed) will be shown in the",
55 "message window below."
56 };
57 Sysout.createDialog( );
58 Sysout.printInstructions( instructions );
59
60
61 // Create the frame and the button
62 Frame f = new Frame();
63 f.setBounds(100, 100, 200, 200);
64 f.setLayout(new FlowLayout());
65 f.add(new Button() {
66 @Override
67 public void update(Graphics g) {
68 wasUpdate = true;
69 super.update(g);
70 }
71 });
72 f.setVisible(true);
73
74 ((SunToolkit)Toolkit.getDefaultToolkit()).realSync();
75
76 if (wasUpdate) {
77 fail(" Unexpected update. ");
78 } else {
79 pass();
80 }
81 }//End init()
82
83 /*****************************************************
84 * Standard Test Machinery Section
85 * DO NOT modify anything in this section -- it's a
86 * standard chunk of code which has all of the
87 * synchronisation necessary for the test harness.
88 * By keeping it the same in all tests, it is easier
89 * to read and understand someone else's test, as
90 * well as insuring that all tests behave correctly
91 * with the test harness.
92 * There is a section following this for test-
93 * classes
94 ******************************************************/
95 private static boolean theTestPassed = false;
96 private static boolean testGeneratedInterrupt = false;
97 private static String failureMessage = "";
98
99 private static Thread mainThread = null;
100
101 private static int sleepTime = 300000;
102
103 // Not sure about what happens if multiple of this test are
104 // instantiated in the same VM. Being static (and using
105 // static vars), it aint gonna work. Not worrying about
106 // it for now.
107 public static void main( String args[] ) throws InterruptedException
108 {
109 mainThread = Thread.currentThread();
110 try
111 {
112 init();
113 }
114 catch( TestPassedException e )
115 {
116 //The test passed, so just return from main and harness will
117 // interepret this return as a pass
118 return;
119 }
120 //At this point, neither test pass nor test fail has been
121 // called -- either would have thrown an exception and ended the
122 // test, so we know we have multiple threads.
123
124 //Test involves other threads, so sleep and wait for them to
125 // called pass() or fail()
126 try
127 {
128 Thread.sleep( sleepTime );
129 //Timed out, so fail the test
130 throw new RuntimeException( "Timed out after " + sleepTime/1000 + " seconds" );
131 }
132 catch (InterruptedException e)
133 {
134 //The test harness may have interrupted the test. If so, rethrow the exception
135 // so that the harness gets it and deals with it.
136 if( ! testGeneratedInterrupt ) throw e;
137
138 //reset flag in case hit this code more than once for some reason (just safety)
139 testGeneratedInterrupt = false;
140
141 if ( theTestPassed == false )
142 {
143 throw new RuntimeException( failureMessage );
144 }
145 }
146
147 }//main
148
149 public static synchronized void setTimeoutTo( int seconds )
150 {
151 sleepTime = seconds * 1000;
152 }
153
154 public static synchronized void pass()
155 {
156 Sysout.println( "The test passed." );
157 Sysout.println( "The test is over, hit Ctl-C to stop Java VM" );
158 //first check if this is executing in main thread
159 if ( mainThread == Thread.currentThread() )
160 {
161 //Still in the main thread, so set the flag just for kicks,
162 // and throw a test passed exception which will be caught
163 // and end the test.
164 theTestPassed = true;
165 throw new TestPassedException();
166 }
167 theTestPassed = true;
168 testGeneratedInterrupt = true;
169 mainThread.interrupt();
170 }//pass()
171
172 public static synchronized void fail()
173 {
174 //test writer didn't specify why test failed, so give generic
175 fail( "it just plain failed! :-)" );
176 }
177
178 public static synchronized void fail( String whyFailed )
179 {
180 Sysout.println( "The test failed: " + whyFailed );
181 Sysout.println( "The test is over, hit Ctl-C to stop Java VM" );
182 //check if this called from main thread
183 if ( mainThread == Thread.currentThread() )
184 {
185 //If main thread, fail now 'cause not sleeping
186 throw new RuntimeException( whyFailed );
187 }
188 theTestPassed = false;
189 testGeneratedInterrupt = true;
190 failureMessage = whyFailed;
191 mainThread.interrupt();
192 }//fail()
193
194 }// class ValidBounds
195
196 //This exception is used to exit from any level of call nesting
197 // when it's determined that the test has passed, and immediately
198 // end the test.
199 class TestPassedException extends RuntimeException
200 {
201 }
202
203 //*********** End Standard Test Machinery Section **********
204
205
206 //************ Begin classes defined for the test ****************
207
208 // if want to make listeners, here is the recommended place for them, then instantiate
209 // them in init()
210
211 /* Example of a class which may be written as part of a test
212 class NewClass implements anInterface
213 {
214 static int newVar = 0;
215
216 public void eventDispatched(AWTEvent e)
217 {
218 //Counting events to see if we get enough
219 eventCount++;
220
221 if( eventCount == 20 )
222 {
223 //got enough events, so pass
224
225 ValidBounds.pass();
226 }
227 else if( tries == 20 )
228 {
229 //tried too many times without getting enough events so fail
230
231 ValidBounds.fail();
232 }
233
234 }// eventDispatched()
235
236 }// NewClass class
237
238 */
239
240
241 //************** End classes defined for the test *******************
242
243
244
245
246 /****************************************************
247 Standard Test Machinery
248 DO NOT modify anything below -- it's a standard
249 chunk of code whose purpose is to make user
250 interaction uniform, and thereby make it simpler
251 to read and understand someone else's test.
252 ****************************************************/
253
254 /**
255 This is part of the standard test machinery.
256 It creates a dialog (with the instructions), and is the interface
257 for sending text messages to the user.
258 To print the instructions, send an array of strings to Sysout.createDialog
259 WithInstructions method. Put one line of instructions per array entry.
260 To display a message for the tester to see, simply call Sysout.println
261 with the string to be displayed.
262 This mimics System.out.println but works within the test harness as well
263 as standalone.
264 */
265
266 class Sysout
267 {
268 private static TestDialog dialog;
269
270 public static void createDialogWithInstructions( String[] instructions )
271 {
272 dialog = new TestDialog( new Frame(), "Instructions" );
273 dialog.printInstructions( instructions );
274 dialog.setVisible(true);
275 println( "Any messages for the tester will display here." );
276 }
277
278 public static void createDialog( )
279 {
280 dialog = new TestDialog( new Frame(), "Instructions" );
281 String[] defInstr = { "Instructions will appear here. ", "" } ;
282 dialog.printInstructions( defInstr );
283 dialog.setVisible(true);
284 println( "Any messages for the tester will display here." );
285 }
286
287
288 public static void printInstructions( String[] instructions )
289 {
290 dialog.printInstructions( instructions );
291 }
292
293
294 public static void println( String messageIn )
295 {
296 dialog.displayMessage( messageIn );
297 System.out.println(messageIn);
298 }
299
300 }// Sysout class
301
302 /**
303 This is part of the standard test machinery. It provides a place for the
304 test instructions to be displayed, and a place for interactive messages
305 to the user to be displayed.
306 To have the test instructions displayed, see Sysout.
307 To have a message to the user be displayed, see Sysout.
308 Do not call anything in this dialog directly.
309 */
310 class TestDialog extends Dialog
311 {
312
313 TextArea instructionsText;
314 TextArea messageText;
315 int maxStringLength = 80;
316
317 //DO NOT call this directly, go through Sysout
318 public TestDialog( Frame frame, String name )
319 {
320 super( frame, name );
321 int scrollBoth = TextArea.SCROLLBARS_BOTH;
322 instructionsText = new TextArea( "", 15, maxStringLength, scrollBoth );
323 add( "North", instructionsText );
324
325 messageText = new TextArea( "", 5, maxStringLength, scrollBoth );
326 add("Center", messageText);
327
328 pack();
329
330 setVisible(true);
331 }// TestDialog()
332
333 //DO NOT call this directly, go through Sysout
334 public void printInstructions( String[] instructions )
335 {
336 //Clear out any current instructions
337 instructionsText.setText( "" );
338
339 //Go down array of instruction strings
340
341 String printStr, remainingStr;
342 for( int i=0; i < instructions.length; i++ )
343 {
344 //chop up each into pieces maxSringLength long
345 remainingStr = instructions[ i ];
346 while( remainingStr.length() > 0 )
347 {
348 //if longer than max then chop off first max chars to print
349 if( remainingStr.length() >= maxStringLength )
350 {
351 //Try to chop on a word boundary
352 int posOfSpace = remainingStr.
353 lastIndexOf( ' ', maxStringLength - 1 );
354
355 if( posOfSpace <= 0 ) posOfSpace = maxStringLength - 1;
356
357 printStr = remainingStr.substring( 0, posOfSpace + 1 );
358 remainingStr = remainingStr.substring( posOfSpace + 1 );
359 }
360 //else just print
361 else
362 {
363 printStr = remainingStr;
364 remainingStr = "";
365 }
366
367 instructionsText.append( printStr + "\n" );
368
369 }// while
370
371 }// for
372
373 }//printInstructions()
374
375 //DO NOT call this directly, go through Sysout
376 public void displayMessage( String messageIn )
377 {
378 messageText.append( messageIn + "\n" );
379 System.out.println(messageIn);
380 }
381
382 }// TestDialog class