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root/jsr166/jsr166/src/test/tck/ScheduledExecutorTest.java

Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.17 by dl, Tue Jan 20 20:20:56 2004 UTC vs.
Revision 1.22 by jsr166, Mon Nov 2 20:28:32 2009 UTC

#	Line 2 | Line 2
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4		* http://creativecommons.org/licenses/publicdomain
5	<	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	<	* Pat Fisher, Mike Judd.
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9		import junit.framework.*;
10		import java.util.*;
11		import java.util.concurrent.*;
12	+	import java.util.concurrent.atomic.*;
13
14		public class ScheduledExecutorTest extends JSR166TestCase {
15		public static void main(String[] args) {
16	<	junit.textui.TestRunner.run (suite());
16	>	junit.textui.TestRunner.run (suite());
17		}
18		public static Test suite() {
19		return new TestSuite(ScheduledExecutorTest.class);
#	Line 42 | Line 43 | public class ScheduledExecutorTest exten
43		catch(Exception e){
44		unexpectedException();
45		}
46	<
46	>
47		}
48
49
#	Line 85 | Line 86 | public class ScheduledExecutorTest exten
86		unexpectedException();
87		}
88		}
89	<
89	>
90		/**
91		* scheduleAtFixedRate executes runnable after given initial delay
92		*/
#	Line 104 | Line 105 | public class ScheduledExecutorTest exten
105		}
106		}
107
108	+	static class RunnableCounter implements Runnable {
109	+	AtomicInteger count = new AtomicInteger(0);
110	+	public void run() { count.getAndIncrement(); }
111	+	}
112	+
113		/**
114		* scheduleWithFixedDelay executes runnable after given initial delay
115		*/
#	Line 121 | Line 127 | public class ScheduledExecutorTest exten
127		unexpectedException();
128		}
129		}
130	<
130	>
131	>	/**
132	>	* scheduleAtFixedRate executes series of tasks at given rate
133	>	*/
134	>	public void testFixedRateSequence() {
135	>	try {
136	>	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
137	>	RunnableCounter counter = new RunnableCounter();
138	>	ScheduledFuture h =
139	>	p1.scheduleAtFixedRate(counter, 0, 1, TimeUnit.MILLISECONDS);
140	>	Thread.sleep(SMALL_DELAY_MS);
141	>	h.cancel(true);
142	>	int c = counter.count.get();
143	>	// By time scaling conventions, we must have at least
144	>	// an execution per SHORT delay, but no more than one SHORT more
145	>	assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
146	>	assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
147	>	joinPool(p1);
148	>	} catch(Exception e){
149	>	unexpectedException();
150	>	}
151	>	}
152	>
153	>	/**
154	>	* scheduleWithFixedDelay executes series of tasks with given period
155	>	*/
156	>	public void testFixedDelaySequence() {
157	>	try {
158	>	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
159	>	RunnableCounter counter = new RunnableCounter();
160	>	ScheduledFuture h =
161	>	p1.scheduleWithFixedDelay(counter, 0, 1, TimeUnit.MILLISECONDS);
162	>	Thread.sleep(SMALL_DELAY_MS);
163	>	h.cancel(true);
164	>	int c = counter.count.get();
165	>	assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
166	>	assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
167	>	joinPool(p1);
168	>	} catch(Exception e){
169	>	unexpectedException();
170	>	}
171	>	}
172	>
173	>
174		/**
175		*  execute (null) throws NPE
176		*/
#	Line 135 | Line 184 | public class ScheduledExecutorTest exten
184		catch(Exception e){
185		unexpectedException();
186		}
187	<
187	>
188		joinPool(se);
189		}
190
#	Line 154 | Line 203 | public class ScheduledExecutorTest exten
203		}
204		joinPool(se);
205		}
206	<
206	>
207		/**
208		* execute throws RejectedExecutionException if shutdown
209		*/
#	Line 168 | Line 217 | public class ScheduledExecutorTest exten
217		} catch(RejectedExecutionException success){
218		} catch (SecurityException ok) {
219		}
220	<
220	>
221		joinPool(se);
222
223		}
#	Line 217 | Line 266 | public class ScheduledExecutorTest exten
266		shouldThrow();
267		} catch(RejectedExecutionException success){
268		} catch (SecurityException ok) {
269	<	}
269	>	}
270		joinPool(se);
271		}
272	<
272	>
273		/**
274		* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
275		*/
#	Line 233 | Line 282 | public class ScheduledExecutorTest exten
282		shouldThrow();
283		} catch(RejectedExecutionException success){
284		} catch (SecurityException ok) {
285	<	}
285	>	}
286		joinPool(se);
287		}
288
#	Line 253 | Line 302 | public class ScheduledExecutorTest exten
302		assertEquals(1, p2.getActiveCount());
303		joinPool(p2);
304		}
305	<
305	>
306		/**
307		*    getCompletedTaskCount increases, but doesn't overestimate,
308		*   when tasks complete
#	Line 270 | Line 319 | public class ScheduledExecutorTest exten
319		assertEquals(1, p2.getCompletedTaskCount());
320		joinPool(p2);
321		}
322	<
322	>
323		/**
324	<	*  getCorePoolSize returns size given in constructor if not otherwise set
324	>	*  getCorePoolSize returns size given in constructor if not otherwise set
325		*/
326		public void testGetCorePoolSize() {
327		ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
328		assertEquals(1, p1.getCorePoolSize());
329		joinPool(p1);
330		}
331	<
331	>
332		/**
333		*    getLargestPoolSize increases, but doesn't overestimate, when
334		*   multiple threads active
#	Line 297 | Line 346 | public class ScheduledExecutorTest exten
346		assertEquals(2, p2.getLargestPoolSize());
347		joinPool(p2);
348		}
349	<
349	>
350		/**
351		*   getPoolSize increases, but doesn't overestimate, when threads
352		*   become active
#	Line 309 | Line 358 | public class ScheduledExecutorTest exten
358		assertEquals(1, p1.getPoolSize());
359		joinPool(p1);
360		}
361	<
361	>
362		/**
363		*    getTaskCount increases, but doesn't overestimate, when tasks
364		*    submitted
#	Line 328 | Line 377 | public class ScheduledExecutorTest exten
377		joinPool(p1);
378		}
379
380	<	/**
380	>	/**
381		* getThreadFactory returns factory in constructor if not set
382		*/
383		public void testGetThreadFactory() {
#	Line 338 | Line 387 | public class ScheduledExecutorTest exten
387		joinPool(p);
388		}
389
390	<	/**
390	>	/**
391		* setThreadFactory sets the thread factory returned by getThreadFactory
392		*/
393		public void testSetThreadFactory() {
#	Line 349 | Line 398 | public class ScheduledExecutorTest exten
398		joinPool(p);
399		}
400
401	<	/**
401	>	/**
402		* setThreadFactory(null) throws NPE
403		*/
404		public void testSetThreadFactoryNull() {
#	Line 362 | Line 411 | public class ScheduledExecutorTest exten
411		joinPool(p);
412		}
413		}
414	<
414	>
415		/**
416		*   is isShutDown is false before shutdown, true after
417		*/
418		public void testIsShutdown() {
419	<
419	>
420		ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
421		try {
422		assertFalse(p1.isShutdown());
#	Line 378 | Line 427 | public class ScheduledExecutorTest exten
427		assertTrue(p1.isShutdown());
428		}
429
430	<
430	>
431		/**
432		*   isTerminated is false before termination, true after
433		*/
#	Line 394 | Line 443 | public class ScheduledExecutorTest exten
443		assertTrue(p1.isTerminated());
444		} catch(Exception e){
445		unexpectedException();
446	<	}
446	>	}
447		}
448
449		/**
#	Line 415 | Line 464 | public class ScheduledExecutorTest exten
464		assertFalse(p1.isTerminating());
465		} catch(Exception e){
466		unexpectedException();
467	<	}
467	>	}
468		}
469
470		/**
#	Line 474 | Line 523 | public class ScheduledExecutorTest exten
523		ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
524		ScheduledFuture[] tasks = new ScheduledFuture[5];
525		for(int i = 0; i < 5; i++){
526	<	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
526	>	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
527	>	}
528	>	try {
529	>	int max = 5;
530	>	if (tasks[4].cancel(true)) --max;
531	>	if (tasks[3].cancel(true)) --max;
532	>	// There must eventually be an interference-free point at
533	>	// which purge will not fail. (At worst, when queue is empty.)
534	>	int k;
535	>	for (k = 0; k < SMALL_DELAY_MS; ++k) {
536	>	p1.purge();
537	>	long count = p1.getTaskCount();
538	>	if (count >= 0 && count <= max)
539	>	break;
540	>	Thread.sleep(1);
541	>	}
542	>	assertTrue(k < SMALL_DELAY_MS);
543	>	} catch(Exception e) {
544	>	unexpectedException();
545	>	} finally {
546	>	joinPool(p1);
547		}
479	–	int max = 5;
480	–	if (tasks[4].cancel(true)) --max;
481	–	if (tasks[3].cancel(true)) --max;
482	–	p1.purge();
483	–	long count = p1.getTaskCount();
484	–	assertTrue(count > 0 && count <= max);
485	–	joinPool(p1);
548		}
549
550		/**
#	Line 495 | Line 557 | public class ScheduledExecutorTest exten
557		List l;
558		try {
559		l = p1.shutdownNow();
560	<	} catch (SecurityException ok) {
560	>	} catch (SecurityException ok) {
561		return;
562		}
563		assertTrue(p1.isShutdown());
#	Line 528 | Line 590 | public class ScheduledExecutorTest exten
590		assertTrue(tasks[i].isDone());
591		assertFalse(tasks[i].isCancelled());
592		}
593	<
593	>
594		}
595		catch(Exception ex) {
596		unexpectedException();
#	Line 607 | Line 669 | public class ScheduledExecutorTest exten
669		catch(Exception ex) {
670		unexpectedException();
671		}
672	<	finally {
672	>	finally {
673		joinPool(p1);
674		}
675		}
#	Line 672 | Line 734 | public class ScheduledExecutorTest exten
734		}
735		}
736
675	–
676	–
677	–
678	–
737		/**
738		* invokeAny(null) throws NPE
739		*/
#	Line 818 | Line 876 | public class ScheduledExecutorTest exten
876		l.add(new NPETask());
877		List<Future<String>> result = e.invokeAll(l);
878		assertEquals(1, result.size());
879	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
879	>	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
880		it.next().get();
881		} catch(ExecutionException success) {
882		} catch(Exception ex) {
#	Line 839 | Line 897 | public class ScheduledExecutorTest exten
897		l.add(new StringTask());
898		List<Future<String>> result = e.invokeAll(l);
899		assertEquals(2, result.size());
900	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
900	>	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
901		assertSame(TEST_STRING, it.next().get());
902		} catch (ExecutionException success) {
903		} catch(Exception ex) {
#	Line 1026 | Line 1084 | public class ScheduledExecutorTest exten
1084		l.add(new NPETask());
1085		List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1086		assertEquals(1, result.size());
1087	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1087	>	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1088		it.next().get();
1089		} catch(ExecutionException success) {
1090		} catch(Exception ex) {
#	Line 1047 | Line 1105 | public class ScheduledExecutorTest exten
1105		l.add(new StringTask());
1106		List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
1107		assertEquals(2, result.size());
1108	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1108	>	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
1109		assertSame(TEST_STRING, it.next().get());
1110		} catch (ExecutionException success) {
1111		} catch(Exception ex) {
#	Line 1069 | Line 1127 | public class ScheduledExecutorTest exten
1127		l.add(new StringTask());
1128		List<Future<String>> result = e.invokeAll(l, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
1129		assertEquals(3, result.size());
1130	<	Iterator<Future<String>> it = result.iterator();
1130	>	Iterator<Future<String>> it = result.iterator();
1131		Future<String> f1 = it.next();
1132		Future<String> f2 = it.next();
1133		Future<String> f3 = it.next();

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