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

Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.2 by dl, Sun Sep 7 23:50:09 2003 UTC vs.
Revision 1.62 by jsr166, Sun Oct 4 08:07:31 2015 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
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/publicdomain/zero/1.0/
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9	<	import junit.framework.*;
10	<	import java.util.*;
10	<	import java.util.concurrent.*;
11	<
12	<	public class ScheduledExecutorTest extends TestCase{
13	<
14	<	boolean flag = false;
9	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
10	>	import static java.util.concurrent.TimeUnit.SECONDS;
11
12	+	import java.util.ArrayList;
13	+	import java.util.HashSet;
14	+	import java.util.List;
15	+	import java.util.concurrent.BlockingQueue;
16	+	import java.util.concurrent.Callable;
17	+	import java.util.concurrent.CancellationException;
18	+	import java.util.concurrent.CountDownLatch;
19	+	import java.util.concurrent.ExecutionException;
20	+	import java.util.concurrent.Executors;
21	+	import java.util.concurrent.ExecutorService;
22	+	import java.util.concurrent.Future;
23	+	import java.util.concurrent.RejectedExecutionException;
24	+	import java.util.concurrent.ScheduledFuture;
25	+	import java.util.concurrent.ScheduledThreadPoolExecutor;
26	+	import java.util.concurrent.ThreadFactory;
27	+	import java.util.concurrent.ThreadPoolExecutor;
28	+	import java.util.concurrent.atomic.AtomicInteger;
29	+
30	+	import junit.framework.Test;
31	+	import junit.framework.TestSuite;
32	+
33	+	public class ScheduledExecutorTest extends JSR166TestCase {
34		public static void main(String[] args) {
35	<	junit.textui.TestRunner.run (suite());
35	>	main(suite(), args);
36		}
19	–
20	–
37		public static Test suite() {
38	<	return new TestSuite(ScheduledExecutorTest.class);
38	>	return new TestSuite(ScheduledExecutorTest.class);
39		}
40
41	<	private static long SHORT_DELAY_MS = 100;
42	<	private static long MEDIUM_DELAY_MS = 1000;
43	<	private static long LONG_DELAY_MS = 10000;
41	>	/**
42	>	* execute successfully executes a runnable
43	>	*/
44	>	public void testExecute() throws InterruptedException {
45	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
46	>	try (PoolCleaner cleaner = cleaner(p)) {
47	>	final CountDownLatch done = new CountDownLatch(1);
48	>	final Runnable task = new CheckedRunnable() {
49	>	public void realRun() { done.countDown(); }};
50	>	p.execute(task);
51	>	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
52	>	}
53	>	}
54	>
55	>	/**
56	>	* delayed schedule of callable successfully executes after delay
57	>	*/
58	>	public void testSchedule1() throws Exception {
59	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
60	>	try (PoolCleaner cleaner = cleaner(p)) {
61	>	final long startTime = System.nanoTime();
62	>	final CountDownLatch done = new CountDownLatch(1);
63	>	Callable task = new CheckedCallable<Boolean>() {
64	>	public Boolean realCall() {
65	>	done.countDown();
66	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
67	>	return Boolean.TRUE;
68	>	}};
69	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
70	>	assertSame(Boolean.TRUE, f.get());
71	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
72	>	assertTrue(done.await(0L, MILLISECONDS));
73	>	}
74	>	}
75	>
76	>	/**
77	>	* delayed schedule of runnable successfully executes after delay
78	>	*/
79	>	public void testSchedule3() throws Exception {
80	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
81	>	try (PoolCleaner cleaner = cleaner(p)) {
82	>	final long startTime = System.nanoTime();
83	>	final CountDownLatch done = new CountDownLatch(1);
84	>	Runnable task = new CheckedRunnable() {
85	>	public void realRun() {
86	>	done.countDown();
87	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
88	>	}};
89	>	Future f = p.schedule(task, timeoutMillis(), MILLISECONDS);
90	>	await(done);
91	>	assertNull(f.get(LONG_DELAY_MS, MILLISECONDS));
92	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
93	>	}
94	>	}
95	>
96	>	/**
97	>	* scheduleAtFixedRate executes runnable after given initial delay
98	>	*/
99	>	public void testSchedule4() throws Exception {
100	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
101	>	try (PoolCleaner cleaner = cleaner(p)) {
102	>	final long startTime = System.nanoTime();
103	>	final CountDownLatch done = new CountDownLatch(1);
104	>	Runnable task = new CheckedRunnable() {
105	>	public void realRun() {
106	>	done.countDown();
107	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
108	>	}};
109	>	ScheduledFuture f =
110	>	p.scheduleAtFixedRate(task, timeoutMillis(),
111	>	LONG_DELAY_MS, MILLISECONDS);
112	>	await(done);
113	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
114	>	f.cancel(true);
115	>	}
116	>	}
117	>
118	>	/**
119	>	* scheduleWithFixedDelay executes runnable after given initial delay
120	>	*/
121	>	public void testSchedule5() throws Exception {
122	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
123	>	try (PoolCleaner cleaner = cleaner(p)) {
124	>	final long startTime = System.nanoTime();
125	>	final CountDownLatch done = new CountDownLatch(1);
126	>	Runnable task = new CheckedRunnable() {
127	>	public void realRun() {
128	>	done.countDown();
129	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
130	>	}};
131	>	ScheduledFuture f =
132	>	p.scheduleWithFixedDelay(task, timeoutMillis(),
133	>	LONG_DELAY_MS, MILLISECONDS);
134	>	await(done);
135	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
136	>	f.cancel(true);
137	>	}
138	>	}
139	>
140	>	static class RunnableCounter implements Runnable {
141	>	AtomicInteger count = new AtomicInteger(0);
142	>	public void run() { count.getAndIncrement(); }
143	>	}
144	>
145	>	/**
146	>	* scheduleAtFixedRate executes series of tasks at given rate
147	>	*/
148	>	public void testFixedRateSequence() throws InterruptedException {
149	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
150	>	try (PoolCleaner cleaner = cleaner(p)) {
151	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
152	>	long startTime = System.nanoTime();
153	>	int cycles = 10;
154	>	final CountDownLatch done = new CountDownLatch(cycles);
155	>	Runnable task = new CheckedRunnable() {
156	>	public void realRun() { done.countDown(); }};
157	>	ScheduledFuture h =
158	>	p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS);
159	>	done.await();
160	>	h.cancel(true);
161	>	double normalizedTime =
162	>	(double) millisElapsedSince(startTime) / delay;
163	>	if (normalizedTime >= cycles - 1 &&
164	>	normalizedTime <= cycles)
165	>	return;
166	>	}
167	>	throw new AssertionError("unexpected execution rate");
168	>	}
169	>	}
170
171	<	static class MyRunnable implements Runnable {
172	<	volatile boolean waiting = true;
173	<	volatile boolean done = false;
174	<	public void run(){
175	<	try{
176	<	Thread.sleep(SHORT_DELAY_MS);
177	<	waiting = false;
178	<	done = true;
179	<	} catch(Exception e){
171	>	/**
172	>	* scheduleWithFixedDelay executes series of tasks with given period
173	>	*/
174	>	public void testFixedDelaySequence() throws InterruptedException {
175	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
176	>	try (PoolCleaner cleaner = cleaner(p)) {
177	>	for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) {
178	>	long startTime = System.nanoTime();
179	>	int cycles = 10;
180	>	final CountDownLatch done = new CountDownLatch(cycles);
181	>	Runnable task = new CheckedRunnable() {
182	>	public void realRun() { done.countDown(); }};
183	>	ScheduledFuture h =
184	>	p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS);
185	>	done.await();
186	>	h.cancel(true);
187	>	double normalizedTime =
188	>	(double) millisElapsedSince(startTime) / delay;
189	>	if (normalizedTime >= cycles - 1 &&
190	>	normalizedTime <= cycles)
191	>	return;
192		}
193	+	throw new AssertionError("unexpected execution rate");
194		}
195		}
196
197	<	static class MyCallable implements Callable {
198	<	volatile boolean waiting = true;
199	<	volatile boolean done = false;
200	<	public Object call(){
201	<	try{
202	<	Thread.sleep(SHORT_DELAY_MS);
203	<	waiting = false;
204	<	done = true;
205	<	}catch(Exception e){}
206	<	return Boolean.TRUE;
197	>	/**
198	>	* execute(null) throws NPE
199	>	*/
200	>	public void testExecuteNull() throws InterruptedException {
201	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
202	>	try (PoolCleaner cleaner = cleaner(p)) {
203	>	try {
204	>	p.execute(null);
205	>	shouldThrow();
206	>	} catch (NullPointerException success) {}
207		}
208		}
209
210	<	public Runnable newRunnable(){
211	<	return new Runnable(){
212	<	public void run(){
213	<	try{Thread.sleep(SHORT_DELAY_MS);
214	<	} catch(Exception e){
215	<	}
216	<	}
217	<	};
210	>	/**
211	>	* schedule(null) throws NPE
212	>	*/
213	>	public void testScheduleNull() throws InterruptedException {
214	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
215	>	try (PoolCleaner cleaner = cleaner(p)) {
216	>	try {
217	>	TrackedCallable callable = null;
218	>	Future f = p.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
219	>	shouldThrow();
220	>	} catch (NullPointerException success) {}
221	>	}
222		}
223
224	<	public Runnable newNoopRunnable() {
225	<	return new Runnable(){
226	<	public void run(){
227	<	}
228	<	};
224	>	/**
225	>	* execute throws RejectedExecutionException if shutdown
226	>	*/
227	>	public void testSchedule1_RejectedExecutionException() throws InterruptedException {
228	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
229	>	try (PoolCleaner cleaner = cleaner(p)) {
230	>	try {
231	>	p.shutdown();
232	>	p.schedule(new NoOpRunnable(),
233	>	MEDIUM_DELAY_MS, MILLISECONDS);
234	>	shouldThrow();
235	>	} catch (RejectedExecutionException success) {
236	>	} catch (SecurityException ok) {}
237	>	}
238		}
239
240		/**
241	<	*  Test to verify execute successfully runs the given Runnable
241	>	* schedule throws RejectedExecutionException if shutdown
242		*/
243	<	public void testExecute(){
244	<	try{
245	<	MyRunnable runnable =new MyRunnable();
246	<	ScheduledExecutor one = new ScheduledExecutor(1);
247	<	one.execute(runnable);
248	<	Thread.sleep(SHORT_DELAY_MS/2);
249	<	assertTrue(runnable.waiting);
250	<	one.shutdown();
251	<	try{
252	<	Thread.sleep(MEDIUM_DELAY_MS);
85	<	} catch(InterruptedException e){
86	<	fail("unexpected exception");
87	<	}
88	<	assertFalse(runnable.waiting);
89	<	assertTrue(runnable.done);
90	<	one.shutdown();
243	>	public void testSchedule2_RejectedExecutionException() throws InterruptedException {
244	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
245	>	try (PoolCleaner cleaner = cleaner(p)) {
246	>	try {
247	>	p.shutdown();
248	>	p.schedule(new NoOpCallable(),
249	>	MEDIUM_DELAY_MS, MILLISECONDS);
250	>	shouldThrow();
251	>	} catch (RejectedExecutionException success) {
252	>	} catch (SecurityException ok) {}
253		}
254	<	catch(Exception e){
255	<	fail("unexpected exception");
254	>	}
255	>
256	>	/**
257	>	* schedule callable throws RejectedExecutionException if shutdown
258	>	*/
259	>	public void testSchedule3_RejectedExecutionException() throws InterruptedException {
260	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
261	>	try (PoolCleaner cleaner = cleaner(p)) {
262	>	try {
263	>	p.shutdown();
264	>	p.schedule(new NoOpCallable(),
265	>	MEDIUM_DELAY_MS, MILLISECONDS);
266	>	shouldThrow();
267	>	} catch (RejectedExecutionException success) {
268	>	} catch (SecurityException ok) {}
269		}
270		}
271
272		/**
273	<	*  Test to verify schedule successfully runs the given Callable.
99	<	*  The waiting flag shows that the Callable is not started until
100	<	*  immediately.
273	>	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
274		*/
275	<	public void testSchedule1(){
276	<	try{
277	<	MyCallable callable = new MyCallable();
278	<	ScheduledExecutor one = new ScheduledExecutor(1);
279	<	Future f = one.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
280	<	assertTrue(callable.waiting);
281	<	Thread.sleep(MEDIUM_DELAY_MS);
282	<	assertTrue(callable.done);
283	<	assertEquals(Boolean.TRUE, f.get());
284	<	one.shutdown();
112	<	}catch(RejectedExecutionException e){}
113	<	catch(Exception e){
114	<	fail("unexpected exception");
275	>	public void testScheduleAtFixedRate1_RejectedExecutionException() throws InterruptedException {
276	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
277	>	try (PoolCleaner cleaner = cleaner(p)) {
278	>	try {
279	>	p.shutdown();
280	>	p.scheduleAtFixedRate(new NoOpRunnable(),
281	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
282	>	shouldThrow();
283	>	} catch (RejectedExecutionException success) {
284	>	} catch (SecurityException ok) {}
285		}
286		}
287
288		/**
289	<	*  Another version of schedule, only using Runnable instead of Callable
289	>	* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
290		*/
291	<	public void testSchedule3(){
292	<	try{
293	<	MyRunnable runnable = new MyRunnable();
294	<	ScheduledExecutor one = new ScheduledExecutor(1);
295	<	one.schedule(runnable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
296	<	Thread.sleep(SHORT_DELAY_MS/2);
297	<	assertTrue(runnable.waiting);
298	<	Thread.sleep(MEDIUM_DELAY_MS);
299	<	assertTrue(runnable.done);
300	<	one.shutdown();
131	<	} catch(Exception e){
132	<	fail("unexpected exception");
291	>	public void testScheduleWithFixedDelay1_RejectedExecutionException() throws InterruptedException {
292	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
293	>	try (PoolCleaner cleaner = cleaner(p)) {
294	>	try {
295	>	p.shutdown();
296	>	p.scheduleWithFixedDelay(new NoOpRunnable(),
297	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS);
298	>	shouldThrow();
299	>	} catch (RejectedExecutionException success) {
300	>	} catch (SecurityException ok) {}
301		}
302		}
303	<
303	>
304		/**
305	<	*  The final version of schedule, using both long, TimeUnit and Runnable
305	>	* getActiveCount increases but doesn't overestimate, when a
306	>	* thread becomes active
307		*/
308	<	public void testSchedule4(){
309	<	try{
310	<	MyRunnable runnable = new MyRunnable();
311	<	ScheduledExecutor one = new ScheduledExecutor(1);
312	<	one.schedule(runnable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
313	<	//      Thread.sleep(505);
314	<	assertTrue(runnable.waiting);
315	<	Thread.sleep(MEDIUM_DELAY_MS);
316	<	assertTrue(runnable.done);
317	<	one.shutdown();
318	<	} catch(Exception e){
319	<	fail("unexpected exception");
308	>	public void testGetActiveCount() throws InterruptedException {
309	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
310	>	try (PoolCleaner cleaner = cleaner(p)) {
311	>	final CountDownLatch threadStarted = new CountDownLatch(1);
312	>	final CountDownLatch done = new CountDownLatch(1);
313	>	assertEquals(0, p.getActiveCount());
314	>	p.execute(new CheckedRunnable() {
315	>	public void realRun() throws InterruptedException {
316	>	threadStarted.countDown();
317	>	assertEquals(1, p.getActiveCount());
318	>	done.await();
319	>	}});
320	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
321	>	assertEquals(1, p.getActiveCount());
322	>	done.countDown();
323		}
324		}
153	–
154	–
155	–	// exception tests
325
326		/**
327	<	*  Test to verify schedule(Runnable, long) throws RejectedExecutionException
328	<	*  This occurs on an attempt to schedule a task on a shutdown executor
327	>	* getCompletedTaskCount increases, but doesn't overestimate,
328	>	* when tasks complete
329		*/
330	<	public void testSchedule1_RejectedExecutionException(){
331	<	try{
332	<	ScheduledExecutor se = new ScheduledExecutor(1);
333	<	se.shutdown();
334	<	se.schedule(new Runnable(){
335	<	public void run(){}
336	<	}, 10000, TimeUnit.MILLISECONDS);
337	<	fail("shoud throw");
338	<	}catch(RejectedExecutionException e){}
330	>	public void testGetCompletedTaskCount() throws InterruptedException {
331	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2);
332	>	try (PoolCleaner cleaner = cleaner(p)) {
333	>	final CountDownLatch threadStarted = new CountDownLatch(1);
334	>	final CountDownLatch threadProceed = new CountDownLatch(1);
335	>	final CountDownLatch threadDone = new CountDownLatch(1);
336	>	assertEquals(0, p.getCompletedTaskCount());
337	>	p.execute(new CheckedRunnable() {
338	>	public void realRun() throws InterruptedException {
339	>	threadStarted.countDown();
340	>	assertEquals(0, p.getCompletedTaskCount());
341	>	threadProceed.await();
342	>	threadDone.countDown();
343	>	}});
344	>	await(threadStarted);
345	>	assertEquals(0, p.getCompletedTaskCount());
346	>	threadProceed.countDown();
347	>	threadDone.await();
348	>	long startTime = System.nanoTime();
349	>	while (p.getCompletedTaskCount() != 1) {
350	>	if (millisElapsedSince(startTime) > LONG_DELAY_MS)
351	>	fail("timed out");
352	>	Thread.yield();
353	>	}
354	>	}
355		}
356
357		/**
358	<	*  Test to verify schedule(Callable, long, TimeUnit) throws RejectedExecutionException
174	<	*  This occurs on an attempt to schedule a task on a shutdown executor
358	>	* getCorePoolSize returns size given in constructor if not otherwise set
359		*/
360	<	public void testSchedule2_RejectedExecutionException(){
361	<	try{
362	<	ScheduledExecutor se = new ScheduledExecutor(1);
363	<	se.shutdown();
364	<	se.schedule(new Callable(){
181	<	public Object call(){
182	<	return Boolean.TRUE;
183	<	}
184	<	}, (long)100, TimeUnit.SECONDS);
185	<	fail("should throw");
186	<	}catch(RejectedExecutionException e){}
360	>	public void testGetCorePoolSize() throws InterruptedException {
361	>	ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
362	>	try (PoolCleaner cleaner = cleaner(p)) {
363	>	assertEquals(1, p.getCorePoolSize());
364	>	}
365		}
366
367		/**
368	<	*  Test to verify schedule(Callable, long) throws RejectedExecutionException
369	<	*  This occurs on an attempt to schedule a task on a shutdown executor
368	>	* getLargestPoolSize increases, but doesn't overestimate, when
369	>	* multiple threads active
370		*/
371	<	public void testSchedule3_RejectedExecutionException(){
372	<	try{
373	<	ScheduledExecutor se = new ScheduledExecutor(1);
374	<	se.shutdown();
375	<	se.schedule(new Callable(){
376	<	public Object call(){
377	<	return Boolean.TRUE;
378	<	}
379	<	},  10000, TimeUnit.MILLISECONDS);
380	<	fail("should throw");
381	<	}catch(RejectedExecutionException e){}
371	>	public void testGetLargestPoolSize() throws InterruptedException {
372	>	final int THREADS = 3;
373	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS);
374	>	final CountDownLatch threadsStarted = new CountDownLatch(THREADS);
375	>	final CountDownLatch done = new CountDownLatch(1);
376	>	try (PoolCleaner cleaner = cleaner(p)) {
377	>	assertEquals(0, p.getLargestPoolSize());
378	>	for (int i = 0; i < THREADS; i++)
379	>	p.execute(new CheckedRunnable() {
380	>	public void realRun() throws InterruptedException {
381	>	threadsStarted.countDown();
382	>	done.await();
383	>	assertEquals(THREADS, p.getLargestPoolSize());
384	>	}});
385	>	assertTrue(threadsStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
386	>	assertEquals(THREADS, p.getLargestPoolSize());
387	>	done.countDown();
388	>	}
389	>	assertEquals(THREADS, p.getLargestPoolSize());
390		}
391
392		/**
393	<	*  Test to verify scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
394	<	*  RejectedExecutionException.
209	<	*  This occurs on an attempt to schedule a task on a shutdown executor
393	>	* getPoolSize increases, but doesn't overestimate, when threads
394	>	* become active
395		*/
396	<	public void testScheduleAtFixedRate1_RejectedExecutionException(){
397	<	try{
398	<	ScheduledExecutor se = new ScheduledExecutor(1);
399	<	se.shutdown();
400	<	se.scheduleAtFixedRate(new Runnable(){
401	<	public void run(){}
402	<	}, 100, 100, TimeUnit.SECONDS);
403	<	fail("should throw");
404	<	}catch(RejectedExecutionException e){}
396	>	public void testGetPoolSize() throws InterruptedException {
397	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
398	>	final CountDownLatch threadStarted = new CountDownLatch(1);
399	>	final CountDownLatch done = new CountDownLatch(1);
400	>	try (PoolCleaner cleaner = cleaner(p)) {
401	>	assertEquals(0, p.getPoolSize());
402	>	p.execute(new CheckedRunnable() {
403	>	public void realRun() throws InterruptedException {
404	>	threadStarted.countDown();
405	>	assertEquals(1, p.getPoolSize());
406	>	done.await();
407	>	}});
408	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
409	>	assertEquals(1, p.getPoolSize());
410	>	done.countDown();
411	>	}
412		}
413	<
413	>
414		/**
415	<	*  Test to verify scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
416	<	*  RejectedExecutionException.
225	<	*  This occurs on an attempt to schedule a task on a shutdown executor
415	>	* getTaskCount increases, but doesn't overestimate, when tasks
416	>	* submitted
417		*/
418	<	public void testScheduleAtFixedRate2_RejectedExecutionException(){
419	<	try{
420	<	ScheduledExecutor se = new ScheduledExecutor(1);
421	<	se.shutdown();
422	<	se.scheduleAtFixedRate(new Runnable(){
423	<	public void run(){}
424	<	},  1, 100, TimeUnit.SECONDS);
425	<	fail("should throw");
426	<	}catch(RejectedExecutionException e){}
418	>	public void testGetTaskCount() throws InterruptedException {
419	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
420	>	try (PoolCleaner cleaner = cleaner(p)) {
421	>	final CountDownLatch threadStarted = new CountDownLatch(1);
422	>	final CountDownLatch done = new CountDownLatch(1);
423	>	final int TASKS = 5;
424	>	assertEquals(0, p.getTaskCount());
425	>	for (int i = 0; i < TASKS; i++)
426	>	p.execute(new CheckedRunnable() {
427	>	public void realRun() throws InterruptedException {
428	>	threadStarted.countDown();
429	>	done.await();
430	>	}});
431	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
432	>	assertEquals(TASKS, p.getTaskCount());
433	>	done.countDown();
434	>	}
435		}
436
437		/**
438	<	*  Test to verify scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws
240	<	*  RejectedExecutionException.
241	<	*  This occurs on an attempt to schedule a task on a shutdown executor
438	>	* getThreadFactory returns factory in constructor if not set
439		*/
440	<	public void testScheduleWithFixedDelay1_RejectedExecutionException(){
441	<	try{
442	<	ScheduledExecutor se = new ScheduledExecutor(1);
443	<	se.shutdown();
444	<	se.scheduleWithFixedDelay(new Runnable(){
248	<	public void run(){}
249	<	}, 100, 100, TimeUnit.SECONDS);
250	<	fail("should throw");
251	<	}catch(RejectedExecutionException e){}
440	>	public void testGetThreadFactory() throws InterruptedException {
441	>	ThreadFactory threadFactory = new SimpleThreadFactory();
442	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, threadFactory);
443	>	assertSame(threadFactory, p.getThreadFactory());
444	>	joinPool(p);
445		}
446
447		/**
448	<	*  Test to verify scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws
256	<	*  RejectedExecutionException.
257	<	*  This occurs on an attempt to schedule a task on a shutdown executor
448	>	* setThreadFactory sets the thread factory returned by getThreadFactory
449		*/
450	<	public void testScheduleWithFixedDelay2_RejectedExecutionException(){
451	<	try{
452	<	ScheduledExecutor se = new ScheduledExecutor(1);
453	<	se.shutdown();
454	<	se.scheduleWithFixedDelay(new Runnable(){
455	<	public void run(){}
456	<	},  1, 100, TimeUnit.SECONDS);
266	<	fail("should throw");
267	<	}catch(RejectedExecutionException e){}
450	>	public void testSetThreadFactory() throws InterruptedException {
451	>	ThreadFactory threadFactory = new SimpleThreadFactory();
452	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
453	>	try (PoolCleaner cleaner = cleaner(p)) {
454	>	p.setThreadFactory(threadFactory);
455	>	assertSame(threadFactory, p.getThreadFactory());
456	>	}
457		}
458
459		/**
460	<	*  Test to verify execute throws RejectedExecutionException
272	<	*  This occurs on an attempt to schedule a task on a shutdown executor
460	>	* setThreadFactory(null) throws NPE
461		*/
462	<	public void testExecute_RejectedExecutionException(){
463	<	try{
464	<	ScheduledExecutor se = new ScheduledExecutor(1);
465	<	se.shutdown();
466	<	se.execute(new Runnable(){
467	<	public void run(){}
468	<	});
469	<	fail("should throw");
282	<	}catch(RejectedExecutionException e){}
462	>	public void testSetThreadFactoryNull() throws InterruptedException {
463	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
464	>	try (PoolCleaner cleaner = cleaner(p)) {
465	>	try {
466	>	p.setThreadFactory(null);
467	>	shouldThrow();
468	>	} catch (NullPointerException success) {}
469	>	}
470		}
471
472	+	/**
473	+	* isShutdown is false before shutdown, true after
474	+	*/
475	+	public void testIsShutdown() {
476
477	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
478	+	try {
479	+	assertFalse(p.isShutdown());
480	+	}
481	+	finally {
482	+	try { p.shutdown(); } catch (SecurityException ok) { return; }
483	+	}
484	+	assertTrue(p.isShutdown());
485	+	}
486
487		/**
488	<	*  Test to verify getActiveCount gives correct values
488	>	* isTerminated is false before termination, true after
489		*/
490	<	public void testGetActiveCount(){
491	<	ScheduledExecutor two = new ScheduledExecutor(2);
492	<	try {
493	<	assertEquals(0, two.getActiveCount());
494	<	two.execute(newRunnable());
495	<	try{
496	<	Thread.sleep(SHORT_DELAY_MS/2);
497	<	} catch(Exception e){
498	<	fail("unexpected exception");
490	>	public void testIsTerminated() throws InterruptedException {
491	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
492	>	try (PoolCleaner cleaner = cleaner(p)) {
493	>	final CountDownLatch threadStarted = new CountDownLatch(1);
494	>	final CountDownLatch done = new CountDownLatch(1);
495	>	assertFalse(p.isTerminated());
496	>	p.execute(new CheckedRunnable() {
497	>	public void realRun() throws InterruptedException {
498	>	assertFalse(p.isTerminated());
499	>	threadStarted.countDown();
500	>	done.await();
501	>	}});
502	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
503	>	assertFalse(p.isTerminating());
504	>	done.countDown();
505	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
506	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
507	>	assertTrue(p.isTerminated());
508	>	}
509	>	}
510	>
511	>	/**
512	>	* isTerminating is not true when running or when terminated
513	>	*/
514	>	public void testIsTerminating() throws InterruptedException {
515	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
516	>	final CountDownLatch threadStarted = new CountDownLatch(1);
517	>	final CountDownLatch done = new CountDownLatch(1);
518	>	try (PoolCleaner cleaner = cleaner(p)) {
519	>	assertFalse(p.isTerminating());
520	>	p.execute(new CheckedRunnable() {
521	>	public void realRun() throws InterruptedException {
522	>	assertFalse(p.isTerminating());
523	>	threadStarted.countDown();
524	>	done.await();
525	>	}});
526	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
527	>	assertFalse(p.isTerminating());
528	>	done.countDown();
529	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
530	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
531	>	assertTrue(p.isTerminated());
532	>	assertFalse(p.isTerminating());
533	>	}
534	>	}
535	>
536	>	/**
537	>	* getQueue returns the work queue, which contains queued tasks
538	>	*/
539	>	public void testGetQueue() throws InterruptedException {
540	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
541	>	try (PoolCleaner cleaner = cleaner(p)) {
542	>	final CountDownLatch threadStarted = new CountDownLatch(1);
543	>	final CountDownLatch done = new CountDownLatch(1);
544	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
545	>	for (int i = 0; i < tasks.length; i++) {
546	>	Runnable r = new CheckedRunnable() {
547	>	public void realRun() throws InterruptedException {
548	>	threadStarted.countDown();
549	>	done.await();
550	>	}};
551	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
552		}
553	<	assertEquals(1, two.getActiveCount());
554	<	} finally {
555	<	two.shutdown();
553	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
554	>	BlockingQueue<Runnable> q = p.getQueue();
555	>	assertTrue(q.contains(tasks[tasks.length - 1]));
556	>	assertFalse(q.contains(tasks[0]));
557	>	done.countDown();
558		}
559		}
560	<
560	>
561		/**
562	<	*  Test to verify getCompleteTaskCount gives correct values
563	<	*/
564	<	public void testGetCompletedTaskCount(){
565	<	ScheduledExecutor two = new ScheduledExecutor(2);
566	<	try {
567	<	assertEquals(0, two.getCompletedTaskCount());
568	<	two.execute(newRunnable());
569	<	try{
570	<	Thread.sleep(MEDIUM_DELAY_MS);
571	<	} catch(Exception e){
572	<	fail("unexpected exception");
562	>	* remove(task) removes queued task, and fails to remove active task
563	>	*/
564	>	public void testRemove() throws InterruptedException {
565	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
566	>	try (PoolCleaner cleaner = cleaner(p)) {
567	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
568	>	final CountDownLatch threadStarted = new CountDownLatch(1);
569	>	final CountDownLatch done = new CountDownLatch(1);
570	>	for (int i = 0; i < tasks.length; i++) {
571	>	Runnable r = new CheckedRunnable() {
572	>	public void realRun() throws InterruptedException {
573	>	threadStarted.countDown();
574	>	done.await();
575	>	}};
576	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
577		}
578	<	assertEquals(1, two.getCompletedTaskCount());
579	<	} finally {
580	<	two.shutdown();
578	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
579	>	BlockingQueue<Runnable> q = p.getQueue();
580	>	assertFalse(p.remove((Runnable)tasks[0]));
581	>	assertTrue(q.contains((Runnable)tasks[4]));
582	>	assertTrue(q.contains((Runnable)tasks[3]));
583	>	assertTrue(p.remove((Runnable)tasks[4]));
584	>	assertFalse(p.remove((Runnable)tasks[4]));
585	>	assertFalse(q.contains((Runnable)tasks[4]));
586	>	assertTrue(q.contains((Runnable)tasks[3]));
587	>	assertTrue(p.remove((Runnable)tasks[3]));
588	>	assertFalse(q.contains((Runnable)tasks[3]));
589	>	done.countDown();
590		}
591		}
592	<
592	>
593		/**
594	<	*  Test to verify getCorePoolSize gives correct values
595	<	*/
596	<	public void testGetCorePoolSize(){
597	<	ScheduledExecutor one = new ScheduledExecutor(1);
594	>	* purge eventually removes cancelled tasks from the queue
595	>	*/
596	>	public void testPurge() throws InterruptedException {
597	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
598	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
599	>	for (int i = 0; i < tasks.length; i++)
600	>	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(),
601	>	LONG_DELAY_MS, MILLISECONDS);
602		try {
603	<	assertEquals(1, one.getCorePoolSize());
603	>	int max = tasks.length;
604	>	if (tasks[4].cancel(true)) --max;
605	>	if (tasks[3].cancel(true)) --max;
606	>	// There must eventually be an interference-free point at
607	>	// which purge will not fail. (At worst, when queue is empty.)
608	>	long startTime = System.nanoTime();
609	>	do {
610	>	p.purge();
611	>	long count = p.getTaskCount();
612	>	if (count == max)
613	>	return;
614	>	} while (millisElapsedSince(startTime) < MEDIUM_DELAY_MS);
615	>	fail("Purge failed to remove cancelled tasks");
616		} finally {
617	<	one.shutdown();
617	>	for (ScheduledFuture task : tasks)
618	>	task.cancel(true);
619	>	joinPool(p);
620		}
621		}
622	<
622	>
623		/**
624	<	*  Test to verify getLargestPoolSize gives correct values
625	<	*/
626	<	public void testGetLargestPoolSize(){
627	<	ScheduledExecutor two = new ScheduledExecutor(2);
624	>	* shutdownNow returns a list containing tasks that were not run,
625	>	* and those tasks are drained from the queue
626	>	*/
627	>	public void testShutdownNow() throws InterruptedException {
628	>	final int poolSize = 2;
629	>	final int count = 5;
630	>	final AtomicInteger ran = new AtomicInteger(0);
631	>	final ScheduledThreadPoolExecutor p =
632	>	new ScheduledThreadPoolExecutor(poolSize);
633	>	CountDownLatch threadsStarted = new CountDownLatch(poolSize);
634	>	Runnable waiter = new CheckedRunnable() { public void realRun() {
635	>	threadsStarted.countDown();
636	>	try {
637	>	MILLISECONDS.sleep(2 * LONG_DELAY_MS);
638	>	} catch (InterruptedException success) {}
639	>	ran.getAndIncrement();
640	>	}};
641	>	for (int i = 0; i < count; i++)
642	>	p.execute(waiter);
643	>	assertTrue(threadsStarted.await(LONG_DELAY_MS, MILLISECONDS));
644	>	assertEquals(poolSize, p.getActiveCount());
645	>	assertEquals(0, p.getCompletedTaskCount());
646	>	final List<Runnable> queuedTasks;
647		try {
648	<	assertEquals(0, two.getLargestPoolSize());
649	<	two.execute(newRunnable());
650	<	two.execute(newRunnable());
651	<	try{
652	<	Thread.sleep(SHORT_DELAY_MS);
653	<	} catch(Exception e){
654	<	fail("unexpected exception");
648	>	queuedTasks = p.shutdownNow();
649	>	} catch (SecurityException ok) {
650	>	return; // Allowed in case test doesn't have privs
651	>	}
652	>	assertTrue(p.isShutdown());
653	>	assertTrue(p.getQueue().isEmpty());
654	>	assertEquals(count - poolSize, queuedTasks.size());
655	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
656	>	assertTrue(p.isTerminated());
657	>	assertEquals(poolSize, ran.get());
658	>	assertEquals(poolSize, p.getCompletedTaskCount());
659	>	}
660	>
661	>	/**
662	>	* shutdownNow returns a list containing tasks that were not run,
663	>	* and those tasks are drained from the queue
664	>	*/
665	>	public void testShutdownNow_delayedTasks() throws InterruptedException {
666	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
667	>	List<ScheduledFuture> tasks = new ArrayList<>();
668	>	for (int i = 0; i < 3; i++) {
669	>	Runnable r = new NoOpRunnable();
670	>	tasks.add(p.schedule(r, 9, SECONDS));
671	>	tasks.add(p.scheduleAtFixedRate(r, 9, 9, SECONDS));
672	>	tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS));
673	>	}
674	>	if (testImplementationDetails)
675	>	assertEquals(new HashSet(tasks), new HashSet(p.getQueue()));
676	>	final List<Runnable> queuedTasks;
677	>	try {
678	>	queuedTasks = p.shutdownNow();
679	>	} catch (SecurityException ok) {
680	>	return; // Allowed in case test doesn't have privs
681	>	}
682	>	assertTrue(p.isShutdown());
683	>	assertTrue(p.getQueue().isEmpty());
684	>	if (testImplementationDetails)
685	>	assertEquals(new HashSet(tasks), new HashSet(queuedTasks));
686	>	assertEquals(tasks.size(), queuedTasks.size());
687	>	for (ScheduledFuture task : tasks) {
688	>	assertFalse(task.isDone());
689	>	assertFalse(task.isCancelled());
690	>	}
691	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
692	>	assertTrue(p.isTerminated());
693	>	}
694	>
695	>	/**
696	>	* By default, periodic tasks are cancelled at shutdown.
697	>	* By default, delayed tasks keep running after shutdown.
698	>	* Check that changing the default values work:
699	>	* - setExecuteExistingDelayedTasksAfterShutdownPolicy
700	>	* - setContinueExistingPeriodicTasksAfterShutdownPolicy
701	>	*/
702	>	public void testShutdown_cancellation() throws Exception {
703	>	Boolean[] allBooleans = { null, Boolean.FALSE, Boolean.TRUE };
704	>	for (Boolean policy : allBooleans)
705	>	{
706	>	final int poolSize = 2;
707	>	final ScheduledThreadPoolExecutor p
708	>	= new ScheduledThreadPoolExecutor(poolSize);
709	>	final boolean effectiveDelayedPolicy = (policy != Boolean.FALSE);
710	>	final boolean effectivePeriodicPolicy = (policy == Boolean.TRUE);
711	>	final boolean effectiveRemovePolicy = (policy == Boolean.TRUE);
712	>	if (policy != null) {
713	>	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(policy);
714	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(policy);
715	>	p.setRemoveOnCancelPolicy(policy);
716	>	}
717	>	assertEquals(effectiveDelayedPolicy,
718	>	p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
719	>	assertEquals(effectivePeriodicPolicy,
720	>	p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
721	>	assertEquals(effectiveRemovePolicy,
722	>	p.getRemoveOnCancelPolicy());
723	>	// Strategy: Wedge the pool with poolSize "blocker" threads
724	>	final AtomicInteger ran = new AtomicInteger(0);
725	>	final CountDownLatch poolBlocked = new CountDownLatch(poolSize);
726	>	final CountDownLatch unblock = new CountDownLatch(1);
727	>	final CountDownLatch periodicLatch1 = new CountDownLatch(2);
728	>	final CountDownLatch periodicLatch2 = new CountDownLatch(2);
729	>	Runnable task = new CheckedRunnable() { public void realRun()
730	>	throws InterruptedException {
731	>	poolBlocked.countDown();
732	>	assertTrue(unblock.await(LONG_DELAY_MS, MILLISECONDS));
733	>	ran.getAndIncrement();
734	>	}};
735	>	List<Future<?>> blockers = new ArrayList<>();
736	>	List<Future<?>> periodics = new ArrayList<>();
737	>	List<Future<?>> delayeds = new ArrayList<>();
738	>	for (int i = 0; i < poolSize; i++)
739	>	blockers.add(p.submit(task));
740	>	assertTrue(poolBlocked.await(LONG_DELAY_MS, MILLISECONDS));
741	>
742	>	periodics.add(p.scheduleAtFixedRate(countDowner(periodicLatch1),
743	>	1, 1, MILLISECONDS));
744	>	periodics.add(p.scheduleWithFixedDelay(countDowner(periodicLatch2),
745	>	1, 1, MILLISECONDS));
746	>	delayeds.add(p.schedule(task, 1, MILLISECONDS));
747	>
748	>	assertTrue(p.getQueue().containsAll(periodics));
749	>	assertTrue(p.getQueue().containsAll(delayeds));
750	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
751	>	assertTrue(p.isShutdown());
752	>	assertFalse(p.isTerminated());
753	>	for (Future<?> periodic : periodics) {
754	>	assertTrue(effectivePeriodicPolicy ^ periodic.isCancelled());
755	>	assertTrue(effectivePeriodicPolicy ^ periodic.isDone());
756	>	}
757	>	for (Future<?> delayed : delayeds) {
758	>	assertTrue(effectiveDelayedPolicy ^ delayed.isCancelled());
759	>	assertTrue(effectiveDelayedPolicy ^ delayed.isDone());
760	>	}
761	>	if (testImplementationDetails) {
762	>	assertEquals(effectivePeriodicPolicy,
763	>	p.getQueue().containsAll(periodics));
764	>	assertEquals(effectiveDelayedPolicy,
765	>	p.getQueue().containsAll(delayeds));
766	>	}
767	>	// Release all pool threads
768	>	unblock.countDown();
769	>
770	>	for (Future<?> delayed : delayeds) {
771	>	if (effectiveDelayedPolicy) {
772	>	assertNull(delayed.get());
773	>	}
774	>	}
775	>	if (effectivePeriodicPolicy) {
776	>	assertTrue(periodicLatch1.await(LONG_DELAY_MS, MILLISECONDS));
777	>	assertTrue(periodicLatch2.await(LONG_DELAY_MS, MILLISECONDS));
778	>	for (Future<?> periodic : periodics) {
779	>	assertTrue(periodic.cancel(false));
780	>	assertTrue(periodic.isCancelled());
781	>	assertTrue(periodic.isDone());
782		}
783	<	assertEquals(2, two.getLargestPoolSize());
784	<	} finally {
785	<	two.shutdown();
783	>	}
784	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
785	>	assertTrue(p.isTerminated());
786	>	assertEquals(2 + (effectiveDelayedPolicy ? 1 : 0), ran.get());
787	>	}}
788	>
789	>	/**
790	>	* completed submit of callable returns result
791	>	*/
792	>	public void testSubmitCallable() throws Exception {
793	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
794	>	try (PoolCleaner cleaner = cleaner(e)) {
795	>	Future<String> future = e.submit(new StringTask());
796	>	String result = future.get();
797	>	assertSame(TEST_STRING, result);
798		}
799		}
800	<
800	>
801		/**
802	<	*  Test to verify getPoolSize gives correct values
802	>	* completed submit of runnable returns successfully
803		*/
804	<	public void testGetPoolSize(){
805	<	ScheduledExecutor one = new ScheduledExecutor(1);
806	<	try {
807	<	assertEquals(0, one.getPoolSize());
808	<	one.execute(newRunnable());
809	<	assertEquals(1, one.getPoolSize());
366	<	} finally {
367	<	one.shutdown();
804	>	public void testSubmitRunnable() throws Exception {
805	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
806	>	try (PoolCleaner cleaner = cleaner(e)) {
807	>	Future<?> future = e.submit(new NoOpRunnable());
808	>	future.get();
809	>	assertTrue(future.isDone());
810		}
811		}
812	<
812	>
813		/**
814	<	*  Test to verify getTaskCount gives correct values
814	>	* completed submit of (runnable, result) returns result
815		*/
816	<	public void testGetTaskCount(){
817	<	ScheduledExecutor one = new ScheduledExecutor(1);
818	<	try {
819	<	assertEquals(0, one.getTaskCount());
820	<	for(int i = 0; i < 5; i++)
821	<	one.execute(newRunnable());
380	<	try{
381	<	Thread.sleep(SHORT_DELAY_MS);
382	<	} catch(Exception e){
383	<	fail("unexpected exception");
384	<	}
385	<	assertEquals(5, one.getTaskCount());
386	<	} finally {
387	<	one.shutdown();
816	>	public void testSubmitRunnable2() throws Exception {
817	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
818	>	try (PoolCleaner cleaner = cleaner(e)) {
819	>	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
820	>	String result = future.get();
821	>	assertSame(TEST_STRING, result);
822		}
823		}
824	<
824	>
825		/**
826	<	*  Test to verify isShutDown gives correct values
826	>	* invokeAny(null) throws NPE
827		*/
828	<	public void testIsShutdown(){
829	<
830	<	ScheduledExecutor one = new ScheduledExecutor(1);
831	<	try {
832	<	assertFalse(one.isShutdown());
828	>	public void testInvokeAny1() throws Exception {
829	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
830	>	try (PoolCleaner cleaner = cleaner(e)) {
831	>	try {
832	>	e.invokeAny(null);
833	>	shouldThrow();
834	>	} catch (NullPointerException success) {}
835		}
836	<	finally {
837	<	one.shutdown();
836	>	}
837	>
838	>	/**
839	>	* invokeAny(empty collection) throws IAE
840	>	*/
841	>	public void testInvokeAny2() throws Exception {
842	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
843	>	try (PoolCleaner cleaner = cleaner(e)) {
844	>	try {
845	>	e.invokeAny(new ArrayList<Callable<String>>());
846	>	shouldThrow();
847	>	} catch (IllegalArgumentException success) {}
848		}
403	–	assertTrue(one.isShutdown());
849		}
850
406	–
851		/**
852	<	*  Test to verify isTerminated gives correct values
409	<	*  Makes sure termination does not take an innapropriate
410	<	*  amount of time
852	>	* invokeAny(c) throws NPE if c has null elements
853		*/
854	<	public void testIsTerminated(){
855	<	ScheduledExecutor one = new ScheduledExecutor(1);
856	<	try {
857	<	one.execute(newRunnable());
858	<	} finally {
859	<	one.shutdown();
854	>	public void testInvokeAny3() throws Exception {
855	>	CountDownLatch latch = new CountDownLatch(1);
856	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
857	>	try (PoolCleaner cleaner = cleaner(e)) {
858	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
859	>	l.add(latchAwaitingStringTask(latch));
860	>	l.add(null);
861	>	try {
862	>	e.invokeAny(l);
863	>	shouldThrow();
864	>	} catch (NullPointerException success) {}
865	>	latch.countDown();
866		}
419	–	boolean flag = false;
420	–	try{
421	–	flag = one.awaitTermination(10, TimeUnit.SECONDS);
422	–	} catch(Exception e){
423	–	fail("unexpected exception");
424	–	}
425	–	assertTrue(one.isTerminated());
426	–	if(!flag)
427	–	fail("ThreadPoolExecutor - thread pool did not terminate within suitable timeframe");
867		}
868
869		/**
870	<	*  Test to verify that purge correctly removes cancelled tasks
432	<	*  from the queue
870	>	* invokeAny(c) throws ExecutionException if no task completes
871		*/
872	<	public void testPurge(){
873	<	ScheduledExecutor one = new ScheduledExecutor(1);
874	<	try {
875	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
876	<	for(int i = 0; i < 5; i++){
877	<	tasks[i] = one.schedule(newRunnable(), 1, TimeUnit.MILLISECONDS);
872	>	public void testInvokeAny4() throws Exception {
873	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
874	>	try (PoolCleaner cleaner = cleaner(e)) {
875	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
876	>	l.add(new NPETask());
877	>	try {
878	>	e.invokeAny(l);
879	>	shouldThrow();
880	>	} catch (ExecutionException success) {
881	>	assertTrue(success.getCause() instanceof NullPointerException);
882		}
441	–	int max = 5;
442	–	if (tasks[4].cancel(true)) --max;
443	–	if (tasks[3].cancel(true)) --max;
444	–	one.purge();
445	–	long count = one.getTaskCount();
446	–	assertTrue(count > 0 && count <= max);
447	–	} finally {
448	–	one.shutdown();
883		}
884		}
885
886		/**
887	<	*  Test to verify shutDownNow returns a list
454	<	*  containing the correct number of elements
887	>	* invokeAny(c) returns result of some task
888		*/
889	<	public void testShutDownNow(){
890	<	ScheduledExecutor one = new ScheduledExecutor(1);
891	<	for(int i = 0; i < 5; i++)
892	<	one.schedule(newRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
893	<	List l = one.shutdownNow();
894	<	assertTrue(one.isShutdown());
895	<	assertTrue(l.size() > 0 && l.size() <= 5);
889	>	public void testInvokeAny5() throws Exception {
890	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
891	>	try (PoolCleaner cleaner = cleaner(e)) {
892	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
893	>	l.add(new StringTask());
894	>	l.add(new StringTask());
895	>	String result = e.invokeAny(l);
896	>	assertSame(TEST_STRING, result);
897	>	}
898		}
899
900	<	public void testShutDown1(){
901	<	try {
902	<	ScheduledExecutor one = new ScheduledExecutor(1);
903	<	assertTrue(one.getExecuteExistingDelayedTasksAfterShutdownPolicy());
904	<	assertFalse(one.getContinueExistingPeriodicTasksAfterShutdownPolicy());
900	>	/**
901	>	* invokeAll(null) throws NPE
902	>	*/
903	>	public void testInvokeAll1() throws Exception {
904	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
905	>	try (PoolCleaner cleaner = cleaner(e)) {
906	>	try {
907	>	e.invokeAll(null);
908	>	shouldThrow();
909	>	} catch (NullPointerException success) {}
910	>	}
911	>	}
912
913	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
914	<	for(int i = 0; i < 5; i++)
915	<	tasks[i] = one.schedule(newNoopRunnable(), SHORT_DELAY_MS/2, TimeUnit.MILLISECONDS);
916	<	one.shutdown();
917	<	BlockingQueue q = one.getQueue();
918	<	for (Iterator it = q.iterator(); it.hasNext();) {
919	<	ScheduledCancellable t = (ScheduledCancellable)it.next();
920	<	assertFalse(t.isCancelled());
921	<	}
922	<	assertTrue(one.isShutdown());
923	<	Thread.sleep(SHORT_DELAY_MS);
924	<	for (int i = 0; i < 5; ++i) {
925	<	assertTrue(tasks[i].isDone());
926	<	assertFalse(tasks[i].isCancelled());
913	>	/**
914	>	* invokeAll(empty collection) returns empty collection
915	>	*/
916	>	public void testInvokeAll2() throws Exception {
917	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
918	>	try (PoolCleaner cleaner = cleaner(e)) {
919	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
920	>	assertTrue(r.isEmpty());
921	>	}
922	>	}
923	>
924	>	/**
925	>	* invokeAll(c) throws NPE if c has null elements
926	>	*/
927	>	public void testInvokeAll3() throws Exception {
928	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
929	>	try (PoolCleaner cleaner = cleaner(e)) {
930	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
931	>	l.add(new StringTask());
932	>	l.add(null);
933	>	try {
934	>	e.invokeAll(l);
935	>	shouldThrow();
936	>	} catch (NullPointerException success) {}
937	>	}
938	>	}
939	>
940	>	/**
941	>	* get of invokeAll(c) throws exception on failed task
942	>	*/
943	>	public void testInvokeAll4() throws Exception {
944	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
945	>	try (PoolCleaner cleaner = cleaner(e)) {
946	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
947	>	l.add(new NPETask());
948	>	List<Future<String>> futures = e.invokeAll(l);
949	>	assertEquals(1, futures.size());
950	>	try {
951	>	futures.get(0).get();
952	>	shouldThrow();
953	>	} catch (ExecutionException success) {
954	>	assertTrue(success.getCause() instanceof NullPointerException);
955		}
486	–
956		}
957	<	catch(Exception ex) {
958	<	fail("unexpected exception");
957	>	}
958	>
959	>	/**
960	>	* invokeAll(c) returns results of all completed tasks
961	>	*/
962	>	public void testInvokeAll5() throws Exception {
963	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
964	>	try (PoolCleaner cleaner = cleaner(e)) {
965	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
966	>	l.add(new StringTask());
967	>	l.add(new StringTask());
968	>	List<Future<String>> futures = e.invokeAll(l);
969	>	assertEquals(2, futures.size());
970	>	for (Future<String> future : futures)
971	>	assertSame(TEST_STRING, future.get());
972		}
973		}
974
975	+	/**
976	+	* timed invokeAny(null) throws NPE
977	+	*/
978	+	public void testTimedInvokeAny1() throws Exception {
979	+	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
980	+	try (PoolCleaner cleaner = cleaner(e)) {
981	+	try {
982	+	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
983	+	shouldThrow();
984	+	} catch (NullPointerException success) {}
985	+	}
986	+	}
987
988	<	public void testShutDown2(){
989	<	try {
990	<	ScheduledExecutor one = new ScheduledExecutor(1);
991	<	one.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
992	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
993	<	for(int i = 0; i < 5; i++)
994	<	tasks[i] = one.schedule(newNoopRunnable(), SHORT_DELAY_MS/2, TimeUnit.MILLISECONDS);
995	<	one.shutdown();
996	<	assertTrue(one.isShutdown());
997	<	BlockingQueue q = one.getQueue();
998	<	assertTrue(q.isEmpty());
999	<	Thread.sleep(SHORT_DELAY_MS);
506	<	assertTrue(one.isTerminated());
988	>	/**
989	>	* timed invokeAny(,,null) throws NPE
990	>	*/
991	>	public void testTimedInvokeAnyNullTimeUnit() throws Exception {
992	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
993	>	try (PoolCleaner cleaner = cleaner(e)) {
994	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
995	>	l.add(new StringTask());
996	>	try {
997	>	e.invokeAny(l, MEDIUM_DELAY_MS, null);
998	>	shouldThrow();
999	>	} catch (NullPointerException success) {}
1000		}
1001	<	catch(Exception ex) {
1002	<	fail("unexpected exception");
1001	>	}
1002	>
1003	>	/**
1004	>	* timed invokeAny(empty collection) throws IAE
1005	>	*/
1006	>	public void testTimedInvokeAny2() throws Exception {
1007	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1008	>	try (PoolCleaner cleaner = cleaner(e)) {
1009	>	try {
1010	>	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1011	>	shouldThrow();
1012	>	} catch (IllegalArgumentException success) {}
1013		}
1014		}
1015
1016	+	/**
1017	+	* timed invokeAny(c) throws NPE if c has null elements
1018	+	*/
1019	+	public void testTimedInvokeAny3() throws Exception {
1020	+	CountDownLatch latch = new CountDownLatch(1);
1021	+	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1022	+	try (PoolCleaner cleaner = cleaner(e)) {
1023	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
1024	+	l.add(latchAwaitingStringTask(latch));
1025	+	l.add(null);
1026	+	try {
1027	+	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1028	+	shouldThrow();
1029	+	} catch (NullPointerException success) {}
1030	+	latch.countDown();
1031	+	}
1032	+	}
1033
1034	<	public void testShutDown3(){
1035	<	try {
1036	<	ScheduledExecutor one = new ScheduledExecutor(1);
1037	<	one.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
1038	<	ScheduledCancellable task =
1039	<	one.scheduleAtFixedRate(newNoopRunnable(), 5, 5, TimeUnit.MILLISECONDS);
1040	<	one.shutdown();
1041	<	assertTrue(one.isShutdown());
1042	<	BlockingQueue q = one.getQueue();
1043	<	assertTrue(q.isEmpty());
1044	<	Thread.sleep(SHORT_DELAY_MS);
1045	<	assertTrue(one.isTerminated());
1034	>	/**
1035	>	* timed invokeAny(c) throws ExecutionException if no task completes
1036	>	*/
1037	>	public void testTimedInvokeAny4() throws Exception {
1038	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1039	>	try (PoolCleaner cleaner = cleaner(e)) {
1040	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1041	>	l.add(new NPETask());
1042	>	try {
1043	>	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1044	>	shouldThrow();
1045	>	} catch (ExecutionException success) {
1046	>	assertTrue(success.getCause() instanceof NullPointerException);
1047	>	}
1048		}
1049	<	catch(Exception ex) {
1050	<	fail("unexpected exception");
1049	>	}
1050	>
1051	>	/**
1052	>	* timed invokeAny(c) returns result of some task
1053	>	*/
1054	>	public void testTimedInvokeAny5() throws Exception {
1055	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1056	>	try (PoolCleaner cleaner = cleaner(e)) {
1057	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1058	>	l.add(new StringTask());
1059	>	l.add(new StringTask());
1060	>	String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1061	>	assertSame(TEST_STRING, result);
1062		}
1063		}
1064
1065	<	public void testShutDown4(){
1066	<	ScheduledExecutor one = new ScheduledExecutor(1);
1067	<	try {
1068	<	one.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
1069	<	ScheduledCancellable task =
1070	<	one.scheduleAtFixedRate(newNoopRunnable(), 5, 5, TimeUnit.MILLISECONDS);
1071	<	assertFalse(task.isCancelled());
1072	<	one.shutdown();
1073	<	assertFalse(task.isCancelled());
1074	<	assertFalse(one.isTerminated());
542	<	assertTrue(one.isShutdown());
543	<	Thread.sleep(SHORT_DELAY_MS);
544	<	assertFalse(task.isCancelled());
545	<	task.cancel(true);
546	<	assertTrue(task.isCancelled());
547	<	Thread.sleep(SHORT_DELAY_MS);
548	<	assertTrue(one.isTerminated());
1065	>	/**
1066	>	* timed invokeAll(null) throws NPE
1067	>	*/
1068	>	public void testTimedInvokeAll1() throws Exception {
1069	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1070	>	try (PoolCleaner cleaner = cleaner(e)) {
1071	>	try {
1072	>	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1073	>	shouldThrow();
1074	>	} catch (NullPointerException success) {}
1075		}
1076	<	catch(Exception ex) {
1077	<	fail("unexpected exception");
1076	>	}
1077	>
1078	>	/**
1079	>	* timed invokeAll(,,null) throws NPE
1080	>	*/
1081	>	public void testTimedInvokeAllNullTimeUnit() throws Exception {
1082	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1083	>	try (PoolCleaner cleaner = cleaner(e)) {
1084	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1085	>	l.add(new StringTask());
1086	>	try {
1087	>	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1088	>	shouldThrow();
1089	>	} catch (NullPointerException success) {}
1090		}
1091	<	finally {
1092	<	one.shutdownNow();
1091	>	}
1092	>
1093	>	/**
1094	>	* timed invokeAll(empty collection) returns empty collection
1095	>	*/
1096	>	public void testTimedInvokeAll2() throws Exception {
1097	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1098	>	try (PoolCleaner cleaner = cleaner(e)) {
1099	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(),
1100	>	MEDIUM_DELAY_MS, MILLISECONDS);
1101	>	assertTrue(r.isEmpty());
1102	>	}
1103	>	}
1104	>
1105	>	/**
1106	>	* timed invokeAll(c) throws NPE if c has null elements
1107	>	*/
1108	>	public void testTimedInvokeAll3() throws Exception {
1109	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1110	>	try (PoolCleaner cleaner = cleaner(e)) {
1111	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1112	>	l.add(new StringTask());
1113	>	l.add(null);
1114	>	try {
1115	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1116	>	shouldThrow();
1117	>	} catch (NullPointerException success) {}
1118	>	}
1119	>	}
1120	>
1121	>	/**
1122	>	* get of element of invokeAll(c) throws exception on failed task
1123	>	*/
1124	>	public void testTimedInvokeAll4() throws Exception {
1125	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1126	>	try (PoolCleaner cleaner = cleaner(e)) {
1127	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1128	>	l.add(new NPETask());
1129	>	List<Future<String>> futures =
1130	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1131	>	assertEquals(1, futures.size());
1132	>	try {
1133	>	futures.get(0).get();
1134	>	shouldThrow();
1135	>	} catch (ExecutionException success) {
1136	>	assertTrue(success.getCause() instanceof NullPointerException);
1137	>	}
1138	>	}
1139	>	}
1140	>
1141	>	/**
1142	>	* timed invokeAll(c) returns results of all completed tasks
1143	>	*/
1144	>	public void testTimedInvokeAll5() throws Exception {
1145	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1146	>	try (PoolCleaner cleaner = cleaner(e)) {
1147	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1148	>	l.add(new StringTask());
1149	>	l.add(new StringTask());
1150	>	List<Future<String>> futures =
1151	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1152	>	assertEquals(2, futures.size());
1153	>	for (Future<String> future : futures)
1154	>	assertSame(TEST_STRING, future.get());
1155	>	}
1156	>	}
1157	>
1158	>	/**
1159	>	* timed invokeAll(c) cancels tasks not completed by timeout
1160	>	*/
1161	>	public void testTimedInvokeAll6() throws Exception {
1162	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1163	>	try (PoolCleaner cleaner = cleaner(e)) {
1164	>	for (long timeout = timeoutMillis();;) {
1165	>	List<Callable<String>> tasks = new ArrayList<>();
1166	>	tasks.add(new StringTask("0"));
1167	>	tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING));
1168	>	tasks.add(new StringTask("2"));
1169	>	long startTime = System.nanoTime();
1170	>	List<Future<String>> futures =
1171	>	e.invokeAll(tasks, timeout, MILLISECONDS);
1172	>	assertEquals(tasks.size(), futures.size());
1173	>	assertTrue(millisElapsedSince(startTime) >= timeout);
1174	>	for (Future future : futures)
1175	>	assertTrue(future.isDone());
1176	>	assertTrue(futures.get(1).isCancelled());
1177	>	try {
1178	>	assertEquals("0", futures.get(0).get());
1179	>	assertEquals("2", futures.get(2).get());
1180	>	break;
1181	>	} catch (CancellationException retryWithLongerTimeout) {
1182	>	timeout *= 2;
1183	>	if (timeout >= LONG_DELAY_MS / 2)
1184	>	fail("expected exactly one task to be cancelled");
1185	>	}
1186	>	}
1187		}
1188		}
1189

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