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

Comparing jsr166/src/test/tck/ScheduledExecutorSubclassTest.java (file contents):
Revision 1.67 by jsr166, Mon May 29 19:15:02 2017 UTC vs.
Revision 1.73 by dl, Tue Jan 26 13:33:06 2021 UTC

#	Line 9 | Line 9 | import static java.util.concurrent.TimeU
9		import static java.util.concurrent.TimeUnit.SECONDS;
10
11		import java.util.ArrayList;
12	+	import java.util.Collection;
13	+	import java.util.Collections;
14		import java.util.HashSet;
15		import java.util.List;
16		import java.util.concurrent.BlockingQueue;
#	Line 121 | Line 123 | public class ScheduledExecutorSubclassTe
123		final CustomExecutor p = new CustomExecutor(1);
124		try (PoolCleaner cleaner = cleaner(p, done)) {
125		final long startTime = System.nanoTime();
126	<	Callable task = new CheckedCallable<Boolean>() {
126	>	Callable<Boolean> task = new CheckedCallable<Boolean>() {
127		public Boolean realCall() {
128		done.countDown();
129		assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
130		return Boolean.TRUE;
131		}};
132	<	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
132	>	Future<Boolean> f = p.schedule(task, timeoutMillis(), MILLISECONDS);
133		assertSame(Boolean.TRUE, f.get());
134		assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
135		}
#	Line 146 | Line 148 | public class ScheduledExecutorSubclassTe
148		done.countDown();
149		assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
150		}};
151	<	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
151	>	Future<?> f = p.schedule(task, timeoutMillis(), MILLISECONDS);
152		await(done);
153		assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
154		assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
#	Line 166 | Line 168 | public class ScheduledExecutorSubclassTe
168		done.countDown();
169		assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
170		}};
171	<	ScheduledFuture f =
171	>	ScheduledFuture<?> f =
172		p.scheduleAtFixedRate(task, timeoutMillis(),
173		LONG_DELAY_MS, MILLISECONDS);
174		await(done);
#	Line 188 | Line 190 | public class ScheduledExecutorSubclassTe
190		done.countDown();
191		assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
192		}};
193	<	ScheduledFuture f =
193	>	ScheduledFuture<?> f =
194		p.scheduleWithFixedDelay(task, timeoutMillis(),
195		LONG_DELAY_MS, MILLISECONDS);
196		await(done);
#	Line 216 | Line 218 | public class ScheduledExecutorSubclassTe
218		final CountDownLatch done = new CountDownLatch(cycles);
219		final Runnable task = new CheckedRunnable() {
220		public void realRun() { done.countDown(); }};
221	<	final ScheduledFuture periodicTask =
221	>	final ScheduledFuture<?> periodicTask =
222		p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS);
223		final int totalDelayMillis = (cycles - 1) * delay;
224		await(done, totalDelayMillis + LONG_DELAY_MS);
#	Line 262 | Line 264 | public class ScheduledExecutorSubclassTe
264		previous.set(now);
265		done.countDown();
266		}};
267	<	final ScheduledFuture periodicTask =
267	>	final ScheduledFuture<?> periodicTask =
268		p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS);
269		final int totalDelayMillis = (cycles - 1) * delay;
270		await(done, totalDelayMillis + cycles * LONG_DELAY_MS);
#	Line 278 | Line 280 | public class ScheduledExecutorSubclassTe
280		}
281
282		/**
283	<	* execute(null) throws NPE
283	>	* Submitting null tasks throws NullPointerException
284		*/
285	<	public void testExecuteNull() throws InterruptedException {
285	>	public void testNullTaskSubmission() {
286		final CustomExecutor p = new CustomExecutor(1);
287		try (PoolCleaner cleaner = cleaner(p)) {
288	<	try {
287	<	p.execute(null);
288	<	shouldThrow();
289	<	} catch (NullPointerException success) {}
288	>	assertNullTaskSubmissionThrowsNullPointerException(p);
289		}
290		}
291
292		/**
293	<	* schedule(null) throws NPE
293	>	* Submitted tasks are rejected when shutdown
294		*/
295	<	public void testScheduleNull() throws InterruptedException {
296	<	final CustomExecutor p = new CustomExecutor(1);
297	<	try (PoolCleaner cleaner = cleaner(p)) {
298	<	try {
299	<	Future f = p.schedule((Callable)null,
300	<	randomTimeout(), randomTimeUnit());
301	<	shouldThrow();
302	<	} catch (NullPointerException success) {}
303	<	}
304	<	}
295	>	public void testSubmittedTasksRejectedWhenShutdown() throws InterruptedException {
296	>	final CustomExecutor p = new CustomExecutor(2);
297	>	final ThreadLocalRandom rnd = ThreadLocalRandom.current();
298	>	final CountDownLatch threadsStarted = new CountDownLatch(p.getCorePoolSize());
299	>	final CountDownLatch done = new CountDownLatch(1);
300	>	final Runnable r = () -> {
301	>	threadsStarted.countDown();
302	>	for (;;) {
303	>	try {
304	>	done.await();
305	>	return;
306	>	} catch (InterruptedException shutdownNowDeliberatelyIgnored) {}
307	>	}};
308	>	final Callable<Boolean> c = () -> {
309	>	threadsStarted.countDown();
310	>	for (;;) {
311	>	try {
312	>	done.await();
313	>	return Boolean.TRUE;
314	>	} catch (InterruptedException shutdownNowDeliberatelyIgnored) {}
315	>	}};
316
317	<	/**
318	<	* execute throws RejectedExecutionException if shutdown
319	<	*/
320	<	public void testSchedule1_RejectedExecutionException() {
321	<	final CustomExecutor p = new CustomExecutor(1);
322	<	try (PoolCleaner cleaner = cleaner(p)) {
323	<	try {
324	<	p.shutdown();
325	<	p.schedule(new NoOpRunnable(),
316	<	MEDIUM_DELAY_MS, MILLISECONDS);
317	<	shouldThrow();
318	<	} catch (RejectedExecutionException success) {
319	<	} catch (SecurityException ok) {}
320	<	}
321	<	}
317	>	try (PoolCleaner cleaner = cleaner(p, done)) {
318	>	for (int i = p.getCorePoolSize(); i--> 0; ) {
319	>	switch (rnd.nextInt(4)) {
320	>	case 0: p.execute(r); break;
321	>	case 1: assertFalse(p.submit(r).isDone()); break;
322	>	case 2: assertFalse(p.submit(r, Boolean.TRUE).isDone()); break;
323	>	case 3: assertFalse(p.submit(c).isDone()); break;
324	>	}
325	>	}
326
327	<	/**
328	<	* schedule throws RejectedExecutionException if shutdown
325	<	*/
326	<	public void testSchedule2_RejectedExecutionException() {
327	<	final CustomExecutor p = new CustomExecutor(1);
328	<	try (PoolCleaner cleaner = cleaner(p)) {
329	<	try {
330	<	p.shutdown();
331	<	p.schedule(new NoOpCallable(),
332	<	MEDIUM_DELAY_MS, MILLISECONDS);
333	<	shouldThrow();
334	<	} catch (RejectedExecutionException success) {
335	<	} catch (SecurityException ok) {}
336	<	}
337	<	}
327	>	// ScheduledThreadPoolExecutor has an unbounded queue, so never saturated.
328	>	await(threadsStarted);
329
330	<	/**
331	<	* schedule callable throws RejectedExecutionException if shutdown
332	<	*/
342	<	public void testSchedule3_RejectedExecutionException() {
343	<	final CustomExecutor p = new CustomExecutor(1);
344	<	try (PoolCleaner cleaner = cleaner(p)) {
345	<	try {
330	>	if (rnd.nextBoolean())
331	>	p.shutdownNow();
332	>	else
333		p.shutdown();
334	<	p.schedule(new NoOpCallable(),
335	<	MEDIUM_DELAY_MS, MILLISECONDS);
336	<	shouldThrow();
350	<	} catch (RejectedExecutionException success) {
351	<	} catch (SecurityException ok) {}
352	<	}
353	<	}
334	>	// Pool is shutdown, but not yet terminated
335	>	assertTaskSubmissionsAreRejected(p);
336	>	assertFalse(p.isTerminated());
337
338	<	/**
339	<	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
357	<	*/
358	<	public void testScheduleAtFixedRate1_RejectedExecutionException() {
359	<	final CustomExecutor p = new CustomExecutor(1);
360	<	try (PoolCleaner cleaner = cleaner(p)) {
361	<	try {
362	<	p.shutdown();
363	<	p.scheduleAtFixedRate(new NoOpRunnable(),
364	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
365	<	shouldThrow();
366	<	} catch (RejectedExecutionException success) {
367	<	} catch (SecurityException ok) {}
368	<	}
369	<	}
338	>	done.countDown();   // release blocking tasks
339	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
340
341	<	/**
372	<	* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
373	<	*/
374	<	public void testScheduleWithFixedDelay1_RejectedExecutionException() {
375	<	final CustomExecutor p = new CustomExecutor(1);
376	<	try (PoolCleaner cleaner = cleaner(p)) {
377	<	try {
378	<	p.shutdown();
379	<	p.scheduleWithFixedDelay(new NoOpRunnable(),
380	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
381	<	shouldThrow();
382	<	} catch (RejectedExecutionException success) {
383	<	} catch (SecurityException ok) {}
341	>	assertTaskSubmissionsAreRejected(p);
342		}
343	+	assertEquals(p.getCorePoolSize(), p.getCompletedTaskCount());
344		}
345
346		/**
#	Line 632 | Line 591 | public class ScheduledExecutorSubclassTe
591		final ScheduledThreadPoolExecutor p = new CustomExecutor(1);
592		try (PoolCleaner cleaner = cleaner(p, done)) {
593		final CountDownLatch threadStarted = new CountDownLatch(1);
594	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
594	>	@SuppressWarnings("unchecked")
595	>	ScheduledFuture<?>[] tasks = (ScheduledFuture<?>[])new ScheduledFuture[5];
596		for (int i = 0; i < tasks.length; i++) {
597		Runnable r = new CheckedRunnable() {
598		public void realRun() throws InterruptedException {
#	Line 655 | Line 615 | public class ScheduledExecutorSubclassTe
615		final CountDownLatch done = new CountDownLatch(1);
616		final ScheduledThreadPoolExecutor p = new CustomExecutor(1);
617		try (PoolCleaner cleaner = cleaner(p, done)) {
618	<	ScheduledFuture[] tasks = new ScheduledFuture[5];
618	>	@SuppressWarnings("unchecked")
619	>	ScheduledFuture<?>[] tasks = (ScheduledFuture<?>[])new ScheduledFuture[5];
620		final CountDownLatch threadStarted = new CountDownLatch(1);
621		for (int i = 0; i < tasks.length; i++) {
622		Runnable r = new CheckedRunnable() {
#	Line 683 | Line 644 | public class ScheduledExecutorSubclassTe
644		* purge removes cancelled tasks from the queue
645		*/
646		public void testPurge() throws InterruptedException {
647	<	final ScheduledFuture[] tasks = new ScheduledFuture[5];
647	>	@SuppressWarnings("unchecked")
648	>	ScheduledFuture<?>[] tasks = (ScheduledFuture<?>[])new ScheduledFuture[5];
649		final Runnable releaser = new Runnable() { public void run() {
650	<	for (ScheduledFuture task : tasks)
650	>	for (ScheduledFuture<?> task : tasks)
651		if (task != null) task.cancel(true); }};
652		final CustomExecutor p = new CustomExecutor(1);
653		try (PoolCleaner cleaner = cleaner(p, releaser)) {
654		for (int i = 0; i < tasks.length; i++)
655	<	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(),
655	>	tasks[i] = p.schedule(possiblyInterruptedRunnable(SMALL_DELAY_MS),
656		LONG_DELAY_MS, MILLISECONDS);
657		int max = tasks.length;
658		if (tasks[4].cancel(true)) --max;
#	Line 721 | Line 683 | public class ScheduledExecutorSubclassTe
683		Runnable waiter = new CheckedRunnable() { public void realRun() {
684		threadsStarted.countDown();
685		try {
686	<	MILLISECONDS.sleep(2 * LONG_DELAY_MS);
686	>	MILLISECONDS.sleep(LONGER_DELAY_MS);
687		} catch (InterruptedException success) {}
688		ran.getAndIncrement();
689		}};
#	Line 751 | Line 713 | public class ScheduledExecutorSubclassTe
713		*/
714		public void testShutdownNow_delayedTasks() throws InterruptedException {
715		final CustomExecutor p = new CustomExecutor(1);
716	<	List<ScheduledFuture> tasks = new ArrayList<>();
716	>	List<ScheduledFuture<?>> tasks = new ArrayList<>();
717		for (int i = 0; i < 3; i++) {
718		Runnable r = new NoOpRunnable();
719		tasks.add(p.schedule(r, 9, SECONDS));
#	Line 759 | Line 721 | public class ScheduledExecutorSubclassTe
721		tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS));
722		}
723		if (testImplementationDetails)
724	<	assertEquals(new HashSet(tasks), new HashSet(p.getQueue()));
724	>	assertEquals(new HashSet<Object>(tasks), new HashSet<Object>(p.getQueue()));
725		final List<Runnable> queuedTasks;
726		try {
727		queuedTasks = p.shutdownNow();
#	Line 769 | Line 731 | public class ScheduledExecutorSubclassTe
731		assertTrue(p.isShutdown());
732		assertTrue(p.getQueue().isEmpty());
733		if (testImplementationDetails)
734	<	assertEquals(new HashSet(tasks), new HashSet(queuedTasks));
734	>	assertEquals(new HashSet<Object>(tasks), new HashSet<Object>(queuedTasks));
735		assertEquals(tasks.size(), queuedTasks.size());
736	<	for (ScheduledFuture task : tasks) {
736	>	for (ScheduledFuture<?> task : tasks) {
737		assertFalse(((CustomTask)task).ran);
738		assertFalse(task.isDone());
739		assertFalse(task.isCancelled());
#	Line 787 | Line 749 | public class ScheduledExecutorSubclassTe
749		* - setExecuteExistingDelayedTasksAfterShutdownPolicy
750		* - setContinueExistingPeriodicTasksAfterShutdownPolicy
751		*/
752	+	@SuppressWarnings("FutureReturnValueIgnored")
753		public void testShutdown_cancellation() throws Exception {
754		final int poolSize = 4;
755		final CustomExecutor p = new CustomExecutor(poolSize);
#	Line 885 | Line 848 | public class ScheduledExecutorSubclassTe
848		immediates.forEach(
849		f -> assertTrue(((ScheduledFuture)f).getDelay(NANOSECONDS) <= 0L));
850
851	<	Stream.of(immediates, delayeds, periodics).flatMap(c -> c.stream())
851	>	Stream.of(immediates, delayeds, periodics).flatMap(Collection::stream)
852		.forEach(f -> assertFalse(f.isDone()));
853
854		try { p.shutdown(); } catch (SecurityException ok) { return; }
#	Line 939 | Line 902 | public class ScheduledExecutorSubclassTe
902
903		assertTrue(q.isEmpty());
904
905	<	Stream.of(immediates, delayeds, periodics).flatMap(c -> c.stream())
905	>	Stream.of(immediates, delayeds, periodics).flatMap(Collection::stream)
906		.forEach(f -> assertTrue(f.isDone()));
907
908		for (Future<?> f : immediates) assertNull(f.get());
#	Line 1018 | Line 981 | public class ScheduledExecutorSubclassTe
981		}
982
983		/**
984	<	* invokeAny(empty collection) throws IAE
984	>	* invokeAny(empty collection) throws IllegalArgumentException
985		*/
986		public void testInvokeAny2() throws Exception {
987		final ExecutorService e = new CustomExecutor(2);
#	Line 1093 | Line 1056 | public class ScheduledExecutorSubclassTe
1056		}
1057
1058		/**
1059	<	* invokeAll(empty collection) returns empty collection
1059	>	* invokeAll(empty collection) returns empty list
1060		*/
1061		public void testInvokeAll2() throws Exception {
1062		final ExecutorService e = new CustomExecutor(2);
1063	+	final Collection<Callable<String>> emptyCollection
1064	+	= Collections.emptyList();
1065		try (PoolCleaner cleaner = cleaner(e)) {
1066	<	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
1066	>	List<Future<String>> r = e.invokeAll(emptyCollection);
1067		assertTrue(r.isEmpty());
1068		}
1069		}
#	Line 1161 | Line 1126 | public class ScheduledExecutorSubclassTe
1126		final ExecutorService e = new CustomExecutor(2);
1127		try (PoolCleaner cleaner = cleaner(e)) {
1128		try {
1129	<	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
1129	>	e.invokeAny(null, randomTimeout(), randomTimeUnit());
1130		shouldThrow();
1131		} catch (NullPointerException success) {}
1132		}
#	Line 1176 | Line 1141 | public class ScheduledExecutorSubclassTe
1141		List<Callable<String>> l = new ArrayList<>();
1142		l.add(new StringTask());
1143		try {
1144	<	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1144	>	e.invokeAny(l, randomTimeout(), null);
1145		shouldThrow();
1146		} catch (NullPointerException success) {}
1147		}
1148		}
1149
1150		/**
1151	<	* timed invokeAny(empty collection) throws IAE
1151	>	* timed invokeAny(empty collection) throws IllegalArgumentException
1152		*/
1153		public void testTimedInvokeAny2() throws Exception {
1154		final ExecutorService e = new CustomExecutor(2);
1155	+	final Collection<Callable<String>> emptyCollection
1156	+	= Collections.emptyList();
1157		try (PoolCleaner cleaner = cleaner(e)) {
1158		try {
1159	<	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1159	>	e.invokeAny(emptyCollection, randomTimeout(), randomTimeUnit());
1160		shouldThrow();
1161		} catch (IllegalArgumentException success) {}
1162		}
#	Line 1206 | Line 1173 | public class ScheduledExecutorSubclassTe
1173		l.add(latchAwaitingStringTask(latch));
1174		l.add(null);
1175		try {
1176	<	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1176	>	e.invokeAny(l, randomTimeout(), randomTimeUnit());
1177		shouldThrow();
1178		} catch (NullPointerException success) {}
1179		latch.countDown();
#	Line 1249 | Line 1216 | public class ScheduledExecutorSubclassTe
1216		}
1217
1218		/**
1219	<	* timed invokeAll(null) throws NPE
1219	>	* timed invokeAll(null) throws NullPointerException
1220		*/
1221		public void testTimedInvokeAll1() throws Exception {
1222		final ExecutorService e = new CustomExecutor(2);
1223		try (PoolCleaner cleaner = cleaner(e)) {
1224		try {
1225	<	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1225	>	e.invokeAll(null, randomTimeout(), randomTimeUnit());
1226		shouldThrow();
1227		} catch (NullPointerException success) {}
1228		}
1229		}
1230
1231		/**
1232	<	* timed invokeAll(,,null) throws NPE
1232	>	* timed invokeAll(,,null) throws NullPointerException
1233		*/
1234		public void testTimedInvokeAllNullTimeUnit() throws Exception {
1235		final ExecutorService e = new CustomExecutor(2);
#	Line 1270 | Line 1237 | public class ScheduledExecutorSubclassTe
1237		List<Callable<String>> l = new ArrayList<>();
1238		l.add(new StringTask());
1239		try {
1240	<	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1240	>	e.invokeAll(l, randomTimeout(), null);
1241		shouldThrow();
1242		} catch (NullPointerException success) {}
1243		}
1244		}
1245
1246		/**
1247	<	* timed invokeAll(empty collection) returns empty collection
1247	>	* timed invokeAll(empty collection) returns empty list
1248		*/
1249		public void testTimedInvokeAll2() throws Exception {
1250		final ExecutorService e = new CustomExecutor(2);
1251	+	final Collection<Callable<String>> emptyCollection
1252	+	= Collections.emptyList();
1253		try (PoolCleaner cleaner = cleaner(e)) {
1254	<	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1254	>	List<Future<String>> r =
1255	>	e.invokeAll(emptyCollection, randomTimeout(), randomTimeUnit());
1256		assertTrue(r.isEmpty());
1257		}
1258		}
#	Line 1297 | Line 1267 | public class ScheduledExecutorSubclassTe
1267		l.add(new StringTask());
1268		l.add(null);
1269		try {
1270	<	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1270	>	e.invokeAll(l, randomTimeout(), randomTimeUnit());
1271		shouldThrow();
1272		} catch (NullPointerException success) {}
1273		}
#	Line 1308 | Line 1278 | public class ScheduledExecutorSubclassTe
1278		*/
1279		public void testTimedInvokeAll4() throws Exception {
1280		final ExecutorService e = new CustomExecutor(2);
1281	+	final Collection<Callable<String>> c = new ArrayList<>();
1282	+	c.add(new NPETask());
1283		try (PoolCleaner cleaner = cleaner(e)) {
1312	–	List<Callable<String>> l = new ArrayList<>();
1313	–	l.add(new NPETask());
1284		List<Future<String>> futures =
1285	<	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1285	>	e.invokeAll(c, LONG_DELAY_MS, MILLISECONDS);
1286		assertEquals(1, futures.size());
1287		try {
1288		futures.get(0).get();
#	Line 1362 | Line 1332 | public class ScheduledExecutorSubclassTe
1332		p.invokeAll(tasks, timeout, MILLISECONDS);
1333		assertEquals(tasks.size(), futures.size());
1334		assertTrue(millisElapsedSince(startTime) >= timeout);
1335	<	for (Future future : futures)
1335	>	for (Future<?> future : futures)
1336		assertTrue(future.isDone());
1337		assertTrue(futures.get(1).isCancelled());
1338		try {

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