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

Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.4 by dl, Sun Sep 14 20:42:40 2003 UTC vs.
Revision 1.64 by jsr166, Mon Oct 5 20:45:41 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.*;
11	<	import java.util.concurrent.*;
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		}
37		public static Test suite() {
38	<	return new TestSuite(ScheduledExecutorTest.class);
38	>	return new TestSuite(ScheduledExecutorTest.class);
39		}
40
41	<	static class MyRunnable implements Runnable {
42	<	volatile boolean done = false;
43	<	public void run(){
44	<	try{
45	<	Thread.sleep(SMALL_DELAY_MS);
46	<	done = true;
47	<	} catch(Exception e){
48	<	}
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	<	static class MyCallable implements Callable {
56	<	volatile boolean done = false;
57	<	public Object call(){
58	<	try{
59	<	Thread.sleep(SMALL_DELAY_MS);
60	<	done = true;
61	<	}catch(Exception e){}
62	<	return Boolean.TRUE;
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	<	public void testExecute(){
77	<	try{
78	<	MyRunnable runnable =new MyRunnable();
79	<	ScheduledExecutor one = new ScheduledExecutor(1);
80	<	one.execute(runnable);
81	<	assertFalse(runnable.done);
82	<	Thread.sleep(SHORT_DELAY_MS);
83	<	one.shutdown();
84	<	try{
85	<	Thread.sleep(MEDIUM_DELAY_MS);
86	<	} catch(InterruptedException e){
87	<	fail("unexpected exception");
88	<	}
89	<	assertTrue(runnable.done);
90	<	one.shutdown();
91	<	joinPool(one);
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	<	catch(Exception e){
95	<	fail("unexpected exception");
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		}
62	–
138		}
139
140	<	public void testSchedule1(){
141	<	try{
142	<	MyCallable callable = new MyCallable();
143	<	ScheduledExecutor one = new ScheduledExecutor(1);
144	<	Future f = one.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
145	<	assertFalse(callable.done);
146	<	Thread.sleep(MEDIUM_DELAY_MS);
147	<	assertTrue(callable.done);
148	<	assertEquals(Boolean.TRUE, f.get());
149	<	one.shutdown();
150	<	joinPool(one);
151	<	}catch(RejectedExecutionException e){}
152	<	catch(Exception e){
153	<	fail("unexpected exception");
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		/**
172	<	*  Another version of schedule, only using Runnable instead of Callable
172	>	* scheduleWithFixedDelay executes series of tasks with given period
173		*/
174	<	public void testSchedule3(){
175	<	try{
176	<	MyRunnable runnable = new MyRunnable();
177	<	ScheduledExecutor one = new ScheduledExecutor(1);
178	<	one.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS);
179	<	Thread.sleep(SHORT_DELAY_MS);
180	<	assertFalse(runnable.done);
181	<	Thread.sleep(MEDIUM_DELAY_MS);
182	<	assertTrue(runnable.done);
183	<	one.shutdown();
184	<	joinPool(one);
185	<	} catch(Exception e){
186	<	fail("unexpected exception");
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	<
196	>
197		/**
198	<	*  The final version of schedule, using both long, TimeUnit and Runnable
198	>	* execute(null) throws NPE
199		*/
200	<	public void testSchedule4(){
201	<	try{
202	<	MyRunnable runnable = new MyRunnable();
203	<	ScheduledExecutor one = new ScheduledExecutor(1);
204	<	one.schedule(runnable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
205	<	assertFalse(runnable.done);
206	<	Thread.sleep(MEDIUM_DELAY_MS);
111	<	assertTrue(runnable.done);
112	<	one.shutdown();
113	<	joinPool(one);
114	<	} catch(Exception e){
115	<	fail("unexpected exception");
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		}
118	–
119	–
120	–	// exception tests
209
210		/**
211	<	*   schedule(Runnable, long) throws RejectedExecutionException
124	<	*  This occurs on an attempt to schedule a task on a shutdown executor
211	>	* schedule(null) throws NPE
212		*/
213	<	public void testSchedule1_RejectedExecutionException(){
214	<	ScheduledExecutor se = new ScheduledExecutor(1);
215	<	try{
216	<	se.shutdown();
217	<	se.schedule(new NoOpRunnable(),
218	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
219	<	fail("shoud throw");
220	<	} catch(RejectedExecutionException success){
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	<	joinPool(se);
222	>	}
223
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	<	*   schedule(Callable, long, TimeUnit) throws RejectedExecutionException
141	<	*  This occurs on an attempt to schedule a task on a shutdown executor
241	>	* schedule throws RejectedExecutionException if shutdown
242		*/
243	<	public void testSchedule2_RejectedExecutionException(){
244	<	ScheduledExecutor se = new ScheduledExecutor(1);
245	<	try{
246	<	se.shutdown();
247	<	se.schedule(new NoOpCallable(),
248	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
249	<	fail("should throw");
250	<	} catch(RejectedExecutionException success){
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		}
152	–	joinPool(se);
254		}
255
256		/**
257	<	*   schedule(Callable, long) throws RejectedExecutionException
157	<	*  This occurs on an attempt to schedule a task on a shutdown executor
257	>	* schedule callable throws RejectedExecutionException if shutdown
258		*/
259	<	public void testSchedule3_RejectedExecutionException(){
260	<	ScheduledExecutor se = new ScheduledExecutor(1);
261	<	try{
262	<	se.shutdown();
263	<	se.schedule(new NoOpCallable(),
264	<	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
265	<	fail("should throw");
266	<	} catch(RejectedExecutionException success){
267	<	}
268	<	joinPool(se);
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	<	*   scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
173	<	*  RejectedExecutionException.
174	<	*  This occurs on an attempt to schedule a task on a shutdown executor
273	>	* scheduleAtFixedRate throws RejectedExecutionException if shutdown
274		*/
275	<	public void testScheduleAtFixedRate1_RejectedExecutionException(){
276	<	ScheduledExecutor se = new ScheduledExecutor(1);
277	<	try{
278	<	se.shutdown();
279	<	se.scheduleAtFixedRate(new NoOpRunnable(),
280	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
281	<	fail("should throw");
282	<	} catch(RejectedExecutionException success){
283	<	}
284	<	joinPool(se);
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	<
287	>
288		/**
289	<	*   scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
190	<	*  RejectedExecutionException.
191	<	*  This occurs on an attempt to schedule a task on a shutdown executor
289	>	* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
290		*/
291	<	public void testScheduleAtFixedRate2_RejectedExecutionException(){
292	<	ScheduledExecutor se = new ScheduledExecutor(1);
293	<	try{
294	<	se.shutdown();
295	<	se.scheduleAtFixedRate(new NoOpRunnable(),
296	<	1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
297	<	fail("should throw");
298	<	} catch(RejectedExecutionException success){
299	<	}
300	<	joinPool(se);
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
304		/**
305	<	*   scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws
306	<	*  RejectedExecutionException.
208	<	*  This occurs on an attempt to schedule a task on a shutdown executor
305	>	* getActiveCount increases but doesn't overestimate, when a
306	>	* thread becomes active
307		*/
308	<	public void testScheduleWithFixedDelay1_RejectedExecutionException(){
309	<	ScheduledExecutor se = new ScheduledExecutor(1);
310	<	try{
311	<	se.shutdown();
312	<	se.scheduleWithFixedDelay(new NoOpRunnable(),
313	<	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
314	<	fail("should throw");
315	<	} catch(RejectedExecutionException success){
316	<	}
317	<	joinPool(se);
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		}
325
326		/**
327	<	*   scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws
328	<	*  RejectedExecutionException.
225	<	*  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 testScheduleWithFixedDelay2_RejectedExecutionException(){
331	<	ScheduledExecutor se = new ScheduledExecutor(1);
332	<	try{
333	<	se.shutdown();
334	<	se.scheduleWithFixedDelay(new NoOpRunnable(),
335	<	1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
336	<	fail("should throw");
337	<	} catch(RejectedExecutionException success){
338	<	}
339	<	joinPool(se);
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	<	*   execute throws RejectedExecutionException
241	<	*  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 testExecute_RejectedExecutionException(){
361	<	ScheduledExecutor se = new ScheduledExecutor(1);
362	<	try{
363	<	se.shutdown();
364	<	se.execute(new NoOpRunnable());
248	<	fail("should throw");
249	<	} catch(RejectedExecutionException success){
250	<	}
251	<	joinPool(se);
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	<	*   getActiveCount gives correct values
368	>	* getLargestPoolSize increases, but doesn't overestimate, when
369	>	* multiple threads active
370		*/
371	<	public void testGetActiveCount(){
372	<	ScheduledExecutor two = new ScheduledExecutor(2);
373	<	assertEquals(0, two.getActiveCount());
374	<	two.execute(new SmallRunnable());
375	<	try{
376	<	Thread.sleep(SHORT_DELAY_MS);
377	<	} catch(Exception e){
378	<	fail("unexpected exception");
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(1, two.getActiveCount());
267	<	joinPool(two);
389	>	assertEquals(THREADS, p.getLargestPoolSize());
390		}
391	<
391	>
392		/**
393	<	*   getCompleteTaskCount gives correct values
393	>	* getPoolSize increases, but doesn't overestimate, when threads
394	>	* become active
395		*/
396	<	public void testGetCompletedTaskCount(){
397	<	ScheduledExecutor two = new ScheduledExecutor(2);
398	<	assertEquals(0, two.getCompletedTaskCount());
399	<	two.execute(new SmallRunnable());
400	<	try{
401	<	Thread.sleep(MEDIUM_DELAY_MS);
402	<	} catch(Exception e){
403	<	fail("unexpected exception");
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		}
282	–	assertEquals(1, two.getCompletedTaskCount());
283	–	joinPool(two);
412		}
413	<
413	>
414		/**
415	<	*   getCorePoolSize gives correct values
415	>	* getTaskCount increases, but doesn't overestimate, when tasks
416	>	* submitted
417		*/
418	<	public void testGetCorePoolSize(){
419	<	ScheduledExecutor one = new ScheduledExecutor(1);
420	<	assertEquals(1, one.getCorePoolSize());
421	<	joinPool(one);
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	<
436	>
437		/**
438	<	*   getLargestPoolSize gives correct values
438	>	* getThreadFactory returns factory in constructor if not set
439		*/
440	<	public void testGetLargestPoolSize(){
441	<	ScheduledExecutor two = new ScheduledExecutor(2);
442	<	assertEquals(0, two.getLargestPoolSize());
443	<	two.execute(new SmallRunnable());
444	<	two.execute(new SmallRunnable());
445	<	try{
304	<	Thread.sleep(SHORT_DELAY_MS);
305	<	} catch(Exception e){
306	<	fail("unexpected exception");
440	>	public void testGetThreadFactory() throws InterruptedException {
441	>	final ThreadFactory threadFactory = new SimpleThreadFactory();
442	>	final ScheduledThreadPoolExecutor p =
443	>	new ScheduledThreadPoolExecutor(1, threadFactory);
444	>	try (PoolCleaner cleaner = cleaner(p)) {
445	>	assertSame(threadFactory, p.getThreadFactory());
446		}
308	–	assertEquals(2, two.getLargestPoolSize());
309	–	joinPool(two);
447		}
448	<
448	>
449		/**
450	<	*   getPoolSize gives correct values
450	>	* setThreadFactory sets the thread factory returned by getThreadFactory
451		*/
452	<	public void testGetPoolSize(){
453	<	ScheduledExecutor one = new ScheduledExecutor(1);
454	<	assertEquals(0, one.getPoolSize());
455	<	one.execute(new SmallRunnable());
456	<	assertEquals(1, one.getPoolSize());
457	<	joinPool(one);
452	>	public void testSetThreadFactory() throws InterruptedException {
453	>	ThreadFactory threadFactory = new SimpleThreadFactory();
454	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
455	>	try (PoolCleaner cleaner = cleaner(p)) {
456	>	p.setThreadFactory(threadFactory);
457	>	assertSame(threadFactory, p.getThreadFactory());
458	>	}
459		}
460	<
460	>
461		/**
462	<	*   getTaskCount gives correct values
462	>	* setThreadFactory(null) throws NPE
463		*/
464	<	public void testGetTaskCount(){
465	<	ScheduledExecutor one = new ScheduledExecutor(1);
466	<	assertEquals(0, one.getTaskCount());
467	<	for(int i = 0; i < 5; i++)
468	<	one.execute(new SmallRunnable());
469	<	try{
470	<	Thread.sleep(SHORT_DELAY_MS);
333	<	} catch(Exception e){
334	<	fail("unexpected exception");
464	>	public void testSetThreadFactoryNull() throws InterruptedException {
465	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
466	>	try (PoolCleaner cleaner = cleaner(p)) {
467	>	try {
468	>	p.setThreadFactory(null);
469	>	shouldThrow();
470	>	} catch (NullPointerException success) {}
471		}
336	–	assertEquals(5, one.getTaskCount());
337	–	joinPool(one);
472		}
473	<
473	>
474		/**
475	<	*   isShutDown gives correct values
475	>	* isShutdown is false before shutdown, true after
476		*/
477	<	public void testIsShutdown(){
478	<
479	<	ScheduledExecutor one = new ScheduledExecutor(1);
477	>	public void testIsShutdown() {
478	>
479	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
480		try {
481	<	assertFalse(one.isShutdown());
481	>	assertFalse(p.isShutdown());
482		}
483		finally {
484	<	one.shutdown();
484	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
485	>	}
486	>	assertTrue(p.isShutdown());
487	>	}
488	>
489	>	/**
490	>	* isTerminated is false before termination, true after
491	>	*/
492	>	public void testIsTerminated() throws InterruptedException {
493	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
494	>	try (PoolCleaner cleaner = cleaner(p)) {
495	>	final CountDownLatch threadStarted = new CountDownLatch(1);
496	>	final CountDownLatch done = new CountDownLatch(1);
497	>	assertFalse(p.isTerminated());
498	>	p.execute(new CheckedRunnable() {
499	>	public void realRun() throws InterruptedException {
500	>	assertFalse(p.isTerminated());
501	>	threadStarted.countDown();
502	>	done.await();
503	>	}});
504	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
505	>	assertFalse(p.isTerminating());
506	>	done.countDown();
507	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
508	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
509	>	assertTrue(p.isTerminated());
510	>	}
511	>	}
512	>
513	>	/**
514	>	* isTerminating is not true when running or when terminated
515	>	*/
516	>	public void testIsTerminating() throws InterruptedException {
517	>	final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
518	>	final CountDownLatch threadStarted = new CountDownLatch(1);
519	>	final CountDownLatch done = new CountDownLatch(1);
520	>	try (PoolCleaner cleaner = cleaner(p)) {
521	>	assertFalse(p.isTerminating());
522	>	p.execute(new CheckedRunnable() {
523	>	public void realRun() throws InterruptedException {
524	>	assertFalse(p.isTerminating());
525	>	threadStarted.countDown();
526	>	done.await();
527	>	}});
528	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
529	>	assertFalse(p.isTerminating());
530	>	done.countDown();
531	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
532	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
533	>	assertTrue(p.isTerminated());
534	>	assertFalse(p.isTerminating());
535	>	}
536	>	}
537	>
538	>	/**
539	>	* getQueue returns the work queue, which contains queued tasks
540	>	*/
541	>	public void testGetQueue() throws InterruptedException {
542	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
543	>	try (PoolCleaner cleaner = cleaner(p)) {
544	>	final CountDownLatch threadStarted = new CountDownLatch(1);
545	>	final CountDownLatch done = new CountDownLatch(1);
546	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
547	>	for (int i = 0; i < tasks.length; i++) {
548	>	Runnable r = new CheckedRunnable() {
549	>	public void realRun() throws InterruptedException {
550	>	threadStarted.countDown();
551	>	done.await();
552	>	}};
553	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
554	>	}
555	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
556	>	BlockingQueue<Runnable> q = p.getQueue();
557	>	assertTrue(q.contains(tasks[tasks.length - 1]));
558	>	assertFalse(q.contains(tasks[0]));
559	>	done.countDown();
560		}
352	–	assertTrue(one.isShutdown());
561		}
562
355	–
563		/**
564	<	*   isTerminated gives correct values
358	<	*  Makes sure termination does not take an innapropriate
359	<	*  amount of time
564	>	* remove(task) removes queued task, and fails to remove active task
565		*/
566	<	public void testIsTerminated(){
567	<	ScheduledExecutor one = new ScheduledExecutor(1);
566	>	public void testRemove() throws InterruptedException {
567	>	final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
568	>	try (PoolCleaner cleaner = cleaner(p)) {
569	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
570	>	final CountDownLatch threadStarted = new CountDownLatch(1);
571	>	final CountDownLatch done = new CountDownLatch(1);
572	>	for (int i = 0; i < tasks.length; i++) {
573	>	Runnable r = new CheckedRunnable() {
574	>	public void realRun() throws InterruptedException {
575	>	threadStarted.countDown();
576	>	done.await();
577	>	}};
578	>	tasks[i] = p.schedule(r, 1, MILLISECONDS);
579	>	}
580	>	assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS));
581	>	BlockingQueue<Runnable> q = p.getQueue();
582	>	assertFalse(p.remove((Runnable)tasks[0]));
583	>	assertTrue(q.contains((Runnable)tasks[4]));
584	>	assertTrue(q.contains((Runnable)tasks[3]));
585	>	assertTrue(p.remove((Runnable)tasks[4]));
586	>	assertFalse(p.remove((Runnable)tasks[4]));
587	>	assertFalse(q.contains((Runnable)tasks[4]));
588	>	assertTrue(q.contains((Runnable)tasks[3]));
589	>	assertTrue(p.remove((Runnable)tasks[3]));
590	>	assertFalse(q.contains((Runnable)tasks[3]));
591	>	done.countDown();
592	>	}
593	>	}
594	>
595	>	/**
596	>	* purge eventually removes cancelled tasks from the queue
597	>	*/
598	>	public void testPurge() throws InterruptedException {
599	>	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
600	>	ScheduledFuture[] tasks = new ScheduledFuture[5];
601	>	for (int i = 0; i < tasks.length; i++)
602	>	tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(),
603	>	LONG_DELAY_MS, MILLISECONDS);
604		try {
605	<	one.execute(new SmallRunnable());
605	>	int max = tasks.length;
606	>	if (tasks[4].cancel(true)) --max;
607	>	if (tasks[3].cancel(true)) --max;
608	>	// There must eventually be an interference-free point at
609	>	// which purge will not fail. (At worst, when queue is empty.)
610	>	long startTime = System.nanoTime();
611	>	do {
612	>	p.purge();
613	>	long count = p.getTaskCount();
614	>	if (count == max)
615	>	return;
616	>	} while (millisElapsedSince(startTime) < MEDIUM_DELAY_MS);
617	>	fail("Purge failed to remove cancelled tasks");
618		} finally {
619	<	one.shutdown();
619	>	for (ScheduledFuture task : tasks)
620	>	task.cancel(true);
621	>	joinPool(p);
622		}
623	+	}
624	+
625	+	/**
626	+	* shutdownNow returns a list containing tasks that were not run,
627	+	* and those tasks are drained from the queue
628	+	*/
629	+	public void testShutdownNow() throws InterruptedException {
630	+	final int poolSize = 2;
631	+	final int count = 5;
632	+	final AtomicInteger ran = new AtomicInteger(0);
633	+	final ScheduledThreadPoolExecutor p =
634	+	new ScheduledThreadPoolExecutor(poolSize);
635	+	final CountDownLatch threadsStarted = new CountDownLatch(poolSize);
636	+	Runnable waiter = new CheckedRunnable() { public void realRun() {
637	+	threadsStarted.countDown();
638	+	try {
639	+	MILLISECONDS.sleep(2 * LONG_DELAY_MS);
640	+	} catch (InterruptedException success) {}
641	+	ran.getAndIncrement();
642	+	}};
643	+	for (int i = 0; i < count; i++)
644	+	p.execute(waiter);
645	+	assertTrue(threadsStarted.await(LONG_DELAY_MS, MILLISECONDS));
646	+	assertEquals(poolSize, p.getActiveCount());
647	+	assertEquals(0, p.getCompletedTaskCount());
648	+	final List<Runnable> queuedTasks;
649	+	try {
650	+	queuedTasks = p.shutdownNow();
651	+	} catch (SecurityException ok) {
652	+	return; // Allowed in case test doesn't have privs
653	+	}
654	+	assertTrue(p.isShutdown());
655	+	assertTrue(p.getQueue().isEmpty());
656	+	assertEquals(count - poolSize, queuedTasks.size());
657	+	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
658	+	assertTrue(p.isTerminated());
659	+	assertEquals(poolSize, ran.get());
660	+	assertEquals(poolSize, p.getCompletedTaskCount());
661	+	}
662	+
663	+	/**
664	+	* shutdownNow returns a list containing tasks that were not run,
665	+	* and those tasks are drained from the queue
666	+	*/
667	+	public void testShutdownNow_delayedTasks() throws InterruptedException {
668	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
669	+	List<ScheduledFuture> tasks = new ArrayList<>();
670	+	for (int i = 0; i < 3; i++) {
671	+	Runnable r = new NoOpRunnable();
672	+	tasks.add(p.schedule(r, 9, SECONDS));
673	+	tasks.add(p.scheduleAtFixedRate(r, 9, 9, SECONDS));
674	+	tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS));
675	+	}
676	+	if (testImplementationDetails)
677	+	assertEquals(new HashSet(tasks), new HashSet(p.getQueue()));
678	+	final List<Runnable> queuedTasks;
679		try {
680	<	assertTrue(one.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
681	<	assertTrue(one.isTerminated());
682	<	} catch(Exception e){
683	<	fail("unexpected exception");
684	<	}
680	>	queuedTasks = p.shutdownNow();
681	>	} catch (SecurityException ok) {
682	>	return; // Allowed in case test doesn't have privs
683	>	}
684	>	assertTrue(p.isShutdown());
685	>	assertTrue(p.getQueue().isEmpty());
686	>	if (testImplementationDetails)
687	>	assertEquals(new HashSet(tasks), new HashSet(queuedTasks));
688	>	assertEquals(tasks.size(), queuedTasks.size());
689	>	for (ScheduledFuture task : tasks) {
690	>	assertFalse(task.isDone());
691	>	assertFalse(task.isCancelled());
692	>	}
693	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
694	>	assertTrue(p.isTerminated());
695		}
696
697		/**
698	<	*   that purge correctly removes cancelled tasks
699	<	*  from the queue
698	>	* By default, periodic tasks are cancelled at shutdown.
699	>	* By default, delayed tasks keep running after shutdown.
700	>	* Check that changing the default values work:
701	>	* - setExecuteExistingDelayedTasksAfterShutdownPolicy
702	>	* - setContinueExistingPeriodicTasksAfterShutdownPolicy
703		*/
704	<	public void testPurge(){
705	<	ScheduledExecutor one = new ScheduledExecutor(1);
706	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
707	<	for(int i = 0; i < 5; i++){
708	<	tasks[i] = one.schedule(new SmallRunnable(), 1, TimeUnit.MILLISECONDS);
704	>	public void testShutdown_cancellation() throws Exception {
705	>	Boolean[] allBooleans = { null, Boolean.FALSE, Boolean.TRUE };
706	>	for (Boolean policy : allBooleans)
707	>	{
708	>	final int poolSize = 2;
709	>	final ScheduledThreadPoolExecutor p
710	>	= new ScheduledThreadPoolExecutor(poolSize);
711	>	final boolean effectiveDelayedPolicy = (policy != Boolean.FALSE);
712	>	final boolean effectivePeriodicPolicy = (policy == Boolean.TRUE);
713	>	final boolean effectiveRemovePolicy = (policy == Boolean.TRUE);
714	>	if (policy != null) {
715	>	p.setExecuteExistingDelayedTasksAfterShutdownPolicy(policy);
716	>	p.setContinueExistingPeriodicTasksAfterShutdownPolicy(policy);
717	>	p.setRemoveOnCancelPolicy(policy);
718	>	}
719	>	assertEquals(effectiveDelayedPolicy,
720	>	p.getExecuteExistingDelayedTasksAfterShutdownPolicy());
721	>	assertEquals(effectivePeriodicPolicy,
722	>	p.getContinueExistingPeriodicTasksAfterShutdownPolicy());
723	>	assertEquals(effectiveRemovePolicy,
724	>	p.getRemoveOnCancelPolicy());
725	>	// Strategy: Wedge the pool with poolSize "blocker" threads
726	>	final AtomicInteger ran = new AtomicInteger(0);
727	>	final CountDownLatch poolBlocked = new CountDownLatch(poolSize);
728	>	final CountDownLatch unblock = new CountDownLatch(1);
729	>	final CountDownLatch periodicLatch1 = new CountDownLatch(2);
730	>	final CountDownLatch periodicLatch2 = new CountDownLatch(2);
731	>	Runnable task = new CheckedRunnable() { public void realRun()
732	>	throws InterruptedException {
733	>	poolBlocked.countDown();
734	>	assertTrue(unblock.await(LONG_DELAY_MS, MILLISECONDS));
735	>	ran.getAndIncrement();
736	>	}};
737	>	List<Future<?>> blockers = new ArrayList<>();
738	>	List<Future<?>> periodics = new ArrayList<>();
739	>	List<Future<?>> delayeds = new ArrayList<>();
740	>	for (int i = 0; i < poolSize; i++)
741	>	blockers.add(p.submit(task));
742	>	assertTrue(poolBlocked.await(LONG_DELAY_MS, MILLISECONDS));
743	>
744	>	periodics.add(p.scheduleAtFixedRate(countDowner(periodicLatch1),
745	>	1, 1, MILLISECONDS));
746	>	periodics.add(p.scheduleWithFixedDelay(countDowner(periodicLatch2),
747	>	1, 1, MILLISECONDS));
748	>	delayeds.add(p.schedule(task, 1, MILLISECONDS));
749	>
750	>	assertTrue(p.getQueue().containsAll(periodics));
751	>	assertTrue(p.getQueue().containsAll(delayeds));
752	>	try { p.shutdown(); } catch (SecurityException ok) { return; }
753	>	assertTrue(p.isShutdown());
754	>	assertFalse(p.isTerminated());
755	>	for (Future<?> periodic : periodics) {
756	>	assertTrue(effectivePeriodicPolicy ^ periodic.isCancelled());
757	>	assertTrue(effectivePeriodicPolicy ^ periodic.isDone());
758	>	}
759	>	for (Future<?> delayed : delayeds) {
760	>	assertTrue(effectiveDelayedPolicy ^ delayed.isCancelled());
761	>	assertTrue(effectiveDelayedPolicy ^ delayed.isDone());
762	>	}
763	>	if (testImplementationDetails) {
764	>	assertEquals(effectivePeriodicPolicy,
765	>	p.getQueue().containsAll(periodics));
766	>	assertEquals(effectiveDelayedPolicy,
767	>	p.getQueue().containsAll(delayeds));
768	>	}
769	>	// Release all pool threads
770	>	unblock.countDown();
771	>
772	>	for (Future<?> delayed : delayeds) {
773	>	if (effectiveDelayedPolicy) {
774	>	assertNull(delayed.get());
775	>	}
776	>	}
777	>	if (effectivePeriodicPolicy) {
778	>	assertTrue(periodicLatch1.await(LONG_DELAY_MS, MILLISECONDS));
779	>	assertTrue(periodicLatch2.await(LONG_DELAY_MS, MILLISECONDS));
780	>	for (Future<?> periodic : periodics) {
781	>	assertTrue(periodic.cancel(false));
782	>	assertTrue(periodic.isCancelled());
783	>	assertTrue(periodic.isDone());
784	>	}
785	>	}
786	>	assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
787	>	assertTrue(p.isTerminated());
788	>	assertEquals(2 + (effectiveDelayedPolicy ? 1 : 0), ran.get());
789	>	}}
790	>
791	>	/**
792	>	* completed submit of callable returns result
793	>	*/
794	>	public void testSubmitCallable() throws Exception {
795	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
796	>	try (PoolCleaner cleaner = cleaner(e)) {
797	>	Future<String> future = e.submit(new StringTask());
798	>	String result = future.get();
799	>	assertSame(TEST_STRING, result);
800		}
386	–	int max = 5;
387	–	if (tasks[4].cancel(true)) --max;
388	–	if (tasks[3].cancel(true)) --max;
389	–	one.purge();
390	–	long count = one.getTaskCount();
391	–	assertTrue(count > 0 && count <= max);
392	–	joinPool(one);
801		}
802
803		/**
804	<	*   shutDownNow returns a list
397	<	*  containing the correct number of elements
804	>	* completed submit of runnable returns successfully
805		*/
806	<	public void testShutDownNow(){
807	<	ScheduledExecutor one = new ScheduledExecutor(1);
808	<	for(int i = 0; i < 5; i++)
809	<	one.schedule(new SmallRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
810	<	List l = one.shutdownNow();
811	<	assertTrue(one.isShutdown());
812	<	assertTrue(l.size() > 0 && l.size() <= 5);
406	<	joinPool(one);
806	>	public void testSubmitRunnable() throws Exception {
807	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
808	>	try (PoolCleaner cleaner = cleaner(e)) {
809	>	Future<?> future = e.submit(new NoOpRunnable());
810	>	future.get();
811	>	assertTrue(future.isDone());
812	>	}
813		}
814
815	<	public void testShutDown1(){
816	<	try {
817	<	ScheduledExecutor one = new ScheduledExecutor(1);
818	<	assertTrue(one.getExecuteExistingDelayedTasksAfterShutdownPolicy());
819	<	assertFalse(one.getContinueExistingPeriodicTasksAfterShutdownPolicy());
815	>	/**
816	>	* completed submit of (runnable, result) returns result
817	>	*/
818	>	public void testSubmitRunnable2() throws Exception {
819	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
820	>	try (PoolCleaner cleaner = cleaner(e)) {
821	>	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
822	>	String result = future.get();
823	>	assertSame(TEST_STRING, result);
824	>	}
825	>	}
826	>
827	>	/**
828	>	* invokeAny(null) throws NPE
829	>	*/
830	>	public void testInvokeAny1() throws Exception {
831	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
832	>	try (PoolCleaner cleaner = cleaner(e)) {
833	>	try {
834	>	e.invokeAny(null);
835	>	shouldThrow();
836	>	} catch (NullPointerException success) {}
837	>	}
838	>	}
839
840	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
841	<	for(int i = 0; i < 5; i++)
842	<	tasks[i] = one.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
843	<	one.shutdown();
844	<	BlockingQueue q = one.getQueue();
845	<	for (Iterator it = q.iterator(); it.hasNext();) {
846	<	ScheduledCancellable t = (ScheduledCancellable)it.next();
847	<	assertFalse(t.isCancelled());
840	>	/**
841	>	* invokeAny(empty collection) throws IAE
842	>	*/
843	>	public void testInvokeAny2() throws Exception {
844	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
845	>	try (PoolCleaner cleaner = cleaner(e)) {
846	>	try {
847	>	e.invokeAny(new ArrayList<Callable<String>>());
848	>	shouldThrow();
849	>	} catch (IllegalArgumentException success) {}
850	>	}
851	>	}
852	>
853	>	/**
854	>	* invokeAny(c) throws NPE if c has null elements
855	>	*/
856	>	public void testInvokeAny3() throws Exception {
857	>	CountDownLatch latch = new CountDownLatch(1);
858	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
859	>	try (PoolCleaner cleaner = cleaner(e)) {
860	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
861	>	l.add(latchAwaitingStringTask(latch));
862	>	l.add(null);
863	>	try {
864	>	e.invokeAny(l);
865	>	shouldThrow();
866	>	} catch (NullPointerException success) {}
867	>	latch.countDown();
868	>	}
869	>	}
870	>
871	>	/**
872	>	* invokeAny(c) throws ExecutionException if no task completes
873	>	*/
874	>	public void testInvokeAny4() throws Exception {
875	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
876	>	try (PoolCleaner cleaner = cleaner(e)) {
877	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
878	>	l.add(new NPETask());
879	>	try {
880	>	e.invokeAny(l);
881	>	shouldThrow();
882	>	} catch (ExecutionException success) {
883	>	assertTrue(success.getCause() instanceof NullPointerException);
884		}
885	<	assertTrue(one.isShutdown());
886	<	Thread.sleep(SMALL_DELAY_MS);
887	<	for (int i = 0; i < 5; ++i) {
888	<	assertTrue(tasks[i].isDone());
889	<	assertFalse(tasks[i].isCancelled());
885	>	}
886	>	}
887	>
888	>	/**
889	>	* invokeAny(c) returns result of some task
890	>	*/
891	>	public void testInvokeAny5() throws Exception {
892	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
893	>	try (PoolCleaner cleaner = cleaner(e)) {
894	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
895	>	l.add(new StringTask());
896	>	l.add(new StringTask());
897	>	String result = e.invokeAny(l);
898	>	assertSame(TEST_STRING, result);
899	>	}
900	>	}
901	>
902	>	/**
903	>	* invokeAll(null) throws NPE
904	>	*/
905	>	public void testInvokeAll1() throws Exception {
906	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
907	>	try (PoolCleaner cleaner = cleaner(e)) {
908	>	try {
909	>	e.invokeAll(null);
910	>	shouldThrow();
911	>	} catch (NullPointerException success) {}
912	>	}
913	>	}
914	>
915	>	/**
916	>	* invokeAll(empty collection) returns empty collection
917	>	*/
918	>	public void testInvokeAll2() throws Exception {
919	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
920	>	try (PoolCleaner cleaner = cleaner(e)) {
921	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
922	>	assertTrue(r.isEmpty());
923	>	}
924	>	}
925	>
926	>	/**
927	>	* invokeAll(c) throws NPE if c has null elements
928	>	*/
929	>	public void testInvokeAll3() throws Exception {
930	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
931	>	try (PoolCleaner cleaner = cleaner(e)) {
932	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
933	>	l.add(new StringTask());
934	>	l.add(null);
935	>	try {
936	>	e.invokeAll(l);
937	>	shouldThrow();
938	>	} catch (NullPointerException success) {}
939	>	}
940	>	}
941	>
942	>	/**
943	>	* get of invokeAll(c) throws exception on failed task
944	>	*/
945	>	public void testInvokeAll4() throws Exception {
946	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
947	>	try (PoolCleaner cleaner = cleaner(e)) {
948	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
949	>	l.add(new NPETask());
950	>	List<Future<String>> futures = e.invokeAll(l);
951	>	assertEquals(1, futures.size());
952	>	try {
953	>	futures.get(0).get();
954	>	shouldThrow();
955	>	} catch (ExecutionException success) {
956	>	assertTrue(success.getCause() instanceof NullPointerException);
957		}
430	–
958		}
959	<	catch(Exception ex) {
960	<	fail("unexpected exception");
959	>	}
960	>
961	>	/**
962	>	* invokeAll(c) returns results of all completed tasks
963	>	*/
964	>	public void testInvokeAll5() throws Exception {
965	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
966	>	try (PoolCleaner cleaner = cleaner(e)) {
967	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
968	>	l.add(new StringTask());
969	>	l.add(new StringTask());
970	>	List<Future<String>> futures = e.invokeAll(l);
971	>	assertEquals(2, futures.size());
972	>	for (Future<String> future : futures)
973	>	assertSame(TEST_STRING, future.get());
974		}
975		}
976
977	+	/**
978	+	* timed invokeAny(null) throws NPE
979	+	*/
980	+	public void testTimedInvokeAny1() throws Exception {
981	+	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
982	+	try (PoolCleaner cleaner = cleaner(e)) {
983	+	try {
984	+	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
985	+	shouldThrow();
986	+	} catch (NullPointerException success) {}
987	+	}
988	+	}
989
990	<	public void testShutDown2(){
991	<	try {
992	<	ScheduledExecutor one = new ScheduledExecutor(1);
993	<	one.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
994	<	ScheduledCancellable[] tasks = new ScheduledCancellable[5];
995	<	for(int i = 0; i < 5; i++)
996	<	tasks[i] = one.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
997	<	one.shutdown();
998	<	assertTrue(one.isShutdown());
999	<	BlockingQueue q = one.getQueue();
1000	<	assertTrue(q.isEmpty());
1001	<	Thread.sleep(SMALL_DELAY_MS);
450	<	assertTrue(one.isTerminated());
990	>	/**
991	>	* timed invokeAny(,,null) throws NPE
992	>	*/
993	>	public void testTimedInvokeAnyNullTimeUnit() throws Exception {
994	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
995	>	try (PoolCleaner cleaner = cleaner(e)) {
996	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
997	>	l.add(new StringTask());
998	>	try {
999	>	e.invokeAny(l, MEDIUM_DELAY_MS, null);
1000	>	shouldThrow();
1001	>	} catch (NullPointerException success) {}
1002		}
1003	<	catch(Exception ex) {
1004	<	fail("unexpected exception");
1003	>	}
1004	>
1005	>	/**
1006	>	* timed invokeAny(empty collection) throws IAE
1007	>	*/
1008	>	public void testTimedInvokeAny2() throws Exception {
1009	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1010	>	try (PoolCleaner cleaner = cleaner(e)) {
1011	>	try {
1012	>	e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
1013	>	shouldThrow();
1014	>	} catch (IllegalArgumentException success) {}
1015		}
1016		}
1017
1018	+	/**
1019	+	* timed invokeAny(c) throws NPE if c has null elements
1020	+	*/
1021	+	public void testTimedInvokeAny3() throws Exception {
1022	+	CountDownLatch latch = new CountDownLatch(1);
1023	+	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1024	+	try (PoolCleaner cleaner = cleaner(e)) {
1025	+	List<Callable<String>> l = new ArrayList<Callable<String>>();
1026	+	l.add(latchAwaitingStringTask(latch));
1027	+	l.add(null);
1028	+	try {
1029	+	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1030	+	shouldThrow();
1031	+	} catch (NullPointerException success) {}
1032	+	latch.countDown();
1033	+	}
1034	+	}
1035
1036	<	public void testShutDown3(){
1037	<	try {
1038	<	ScheduledExecutor one = new ScheduledExecutor(1);
1039	<	one.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
1040	<	ScheduledCancellable task =
1041	<	one.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
1042	<	one.shutdown();
1043	<	assertTrue(one.isShutdown());
1044	<	BlockingQueue q = one.getQueue();
1045	<	assertTrue(q.isEmpty());
1046	<	Thread.sleep(SHORT_DELAY_MS);
1047	<	assertTrue(one.isTerminated());
1036	>	/**
1037	>	* timed invokeAny(c) throws ExecutionException if no task completes
1038	>	*/
1039	>	public void testTimedInvokeAny4() throws Exception {
1040	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1041	>	try (PoolCleaner cleaner = cleaner(e)) {
1042	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1043	>	l.add(new NPETask());
1044	>	try {
1045	>	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1046	>	shouldThrow();
1047	>	} catch (ExecutionException success) {
1048	>	assertTrue(success.getCause() instanceof NullPointerException);
1049	>	}
1050		}
1051	<	catch(Exception ex) {
1052	<	fail("unexpected exception");
1051	>	}
1052	>
1053	>	/**
1054	>	* timed invokeAny(c) returns result of some task
1055	>	*/
1056	>	public void testTimedInvokeAny5() throws Exception {
1057	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1058	>	try (PoolCleaner cleaner = cleaner(e)) {
1059	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1060	>	l.add(new StringTask());
1061	>	l.add(new StringTask());
1062	>	String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
1063	>	assertSame(TEST_STRING, result);
1064		}
1065		}
1066
1067	<	public void testShutDown4(){
1068	<	ScheduledExecutor one = new ScheduledExecutor(1);
1069	<	try {
1070	<	one.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
1071	<	ScheduledCancellable task =
1072	<	one.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
1073	<	assertFalse(task.isCancelled());
1074	<	one.shutdown();
1075	<	assertFalse(task.isCancelled());
1076	<	assertFalse(one.isTerminated());
486	<	assertTrue(one.isShutdown());
487	<	Thread.sleep(SHORT_DELAY_MS);
488	<	assertFalse(task.isCancelled());
489	<	task.cancel(true);
490	<	assertTrue(task.isCancelled());
491	<	Thread.sleep(SHORT_DELAY_MS);
492	<	assertTrue(one.isTerminated());
1067	>	/**
1068	>	* timed invokeAll(null) throws NPE
1069	>	*/
1070	>	public void testTimedInvokeAll1() throws Exception {
1071	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1072	>	try (PoolCleaner cleaner = cleaner(e)) {
1073	>	try {
1074	>	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
1075	>	shouldThrow();
1076	>	} catch (NullPointerException success) {}
1077		}
1078	<	catch(Exception ex) {
1079	<	fail("unexpected exception");
1078	>	}
1079	>
1080	>	/**
1081	>	* timed invokeAll(,,null) throws NPE
1082	>	*/
1083	>	public void testTimedInvokeAllNullTimeUnit() throws Exception {
1084	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1085	>	try (PoolCleaner cleaner = cleaner(e)) {
1086	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1087	>	l.add(new StringTask());
1088	>	try {
1089	>	e.invokeAll(l, MEDIUM_DELAY_MS, null);
1090	>	shouldThrow();
1091	>	} catch (NullPointerException success) {}
1092		}
1093	<	finally {
1094	<	one.shutdownNow();
1093	>	}
1094	>
1095	>	/**
1096	>	* timed invokeAll(empty collection) returns empty collection
1097	>	*/
1098	>	public void testTimedInvokeAll2() throws Exception {
1099	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1100	>	try (PoolCleaner cleaner = cleaner(e)) {
1101	>	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(),
1102	>	MEDIUM_DELAY_MS, MILLISECONDS);
1103	>	assertTrue(r.isEmpty());
1104	>	}
1105	>	}
1106	>
1107	>	/**
1108	>	* timed invokeAll(c) throws NPE if c has null elements
1109	>	*/
1110	>	public void testTimedInvokeAll3() throws Exception {
1111	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1112	>	try (PoolCleaner cleaner = cleaner(e)) {
1113	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1114	>	l.add(new StringTask());
1115	>	l.add(null);
1116	>	try {
1117	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1118	>	shouldThrow();
1119	>	} catch (NullPointerException success) {}
1120	>	}
1121	>	}
1122	>
1123	>	/**
1124	>	* get of element of invokeAll(c) throws exception on failed task
1125	>	*/
1126	>	public void testTimedInvokeAll4() throws Exception {
1127	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1128	>	try (PoolCleaner cleaner = cleaner(e)) {
1129	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1130	>	l.add(new NPETask());
1131	>	List<Future<String>> futures =
1132	>	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
1133	>	assertEquals(1, futures.size());
1134	>	try {
1135	>	futures.get(0).get();
1136	>	shouldThrow();
1137	>	} catch (ExecutionException success) {
1138	>	assertTrue(success.getCause() instanceof NullPointerException);
1139	>	}
1140	>	}
1141	>	}
1142	>
1143	>	/**
1144	>	* timed invokeAll(c) returns results of all completed tasks
1145	>	*/
1146	>	public void testTimedInvokeAll5() throws Exception {
1147	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1148	>	try (PoolCleaner cleaner = cleaner(e)) {
1149	>	List<Callable<String>> l = new ArrayList<Callable<String>>();
1150	>	l.add(new StringTask());
1151	>	l.add(new StringTask());
1152	>	List<Future<String>> futures =
1153	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
1154	>	assertEquals(2, futures.size());
1155	>	for (Future<String> future : futures)
1156	>	assertSame(TEST_STRING, future.get());
1157	>	}
1158	>	}
1159	>
1160	>	/**
1161	>	* timed invokeAll(c) cancels tasks not completed by timeout
1162	>	*/
1163	>	public void testTimedInvokeAll6() throws Exception {
1164	>	final ExecutorService e = new ScheduledThreadPoolExecutor(2);
1165	>	try (PoolCleaner cleaner = cleaner(e)) {
1166	>	for (long timeout = timeoutMillis();;) {
1167	>	List<Callable<String>> tasks = new ArrayList<>();
1168	>	tasks.add(new StringTask("0"));
1169	>	tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING));
1170	>	tasks.add(new StringTask("2"));
1171	>	long startTime = System.nanoTime();
1172	>	List<Future<String>> futures =
1173	>	e.invokeAll(tasks, timeout, MILLISECONDS);
1174	>	assertEquals(tasks.size(), futures.size());
1175	>	assertTrue(millisElapsedSince(startTime) >= timeout);
1176	>	for (Future future : futures)
1177	>	assertTrue(future.isDone());
1178	>	assertTrue(futures.get(1).isCancelled());
1179	>	try {
1180	>	assertEquals("0", futures.get(0).get());
1181	>	assertEquals("2", futures.get(2).get());
1182	>	break;
1183	>	} catch (CancellationException retryWithLongerTimeout) {
1184	>	timeout *= 2;
1185	>	if (timeout >= LONG_DELAY_MS / 2)
1186	>	fail("expected exactly one task to be cancelled");
1187	>	}
1188	>	}
1189		}
1190		}
1191

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