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

Comparing jsr166/src/test/tck/ScheduledExecutorTest.java (file contents):
Revision 1.1 by dl, Sun Aug 31 19:24:55 2003 UTC vs.
Revision 1.10 by dl, Mon Dec 22 00:48:56 2003 UTC

#	Line 9 | Line 9 | import junit.framework.*;
9		import java.util.*;
10		import java.util.concurrent.*;
11
12	<	public class ScheduledExecutorTest extends TestCase{
13	<
14	<	boolean flag = false;
15	<
12	>	public class ScheduledExecutorTest extends JSR166TestCase {
13		public static void main(String[] args) {
14		junit.textui.TestRunner.run (suite());
15		}
19	–
20	–
16		public static Test suite() {
17		return new TestSuite(ScheduledExecutorTest.class);
18		}
19
25	–	private static long SHORT_DELAY_MS = 100;
26	–	private static long MEDIUM_DELAY_MS = 1000;
27	–	private static long LONG_DELAY_MS = 10000;
28	–
29	–	static class MyRunnable implements Runnable {
30	–	volatile boolean waiting = true;
31	–	volatile boolean done = false;
32	–	public void run(){
33	–	try{
34	–	Thread.sleep(MEDIUM_DELAY_MS);
35	–	waiting = false;
36	–	done = true;
37	–	} catch(Exception e){}
38	–	}
39	–	}
40	–
41	–	static class MyCallable implements Callable {
42	–	volatile boolean waiting = true;
43	–	volatile boolean done = false;
44	–	public Object call(){
45	–	try{
46	–	Thread.sleep(MEDIUM_DELAY_MS);
47	–	waiting = false;
48	–	done = true;
49	–	}catch(Exception e){}
50	–	return Boolean.TRUE;
51	–	}
52	–	}
20
21		/**
22	<	*  Test to verify execute successfully runs the given Runnable
23	<	*/
24	<	public void testExecute(){
25	<	try{
26	<	MyRunnable runnable =new MyRunnable();
27	<	ScheduledExecutor one = new ScheduledExecutor(1);
28	<	one.execute(runnable);
29	<	Thread.sleep(100);
30	<	assertTrue(runnable.waiting);
31	<	one.shutdown();
32	<	// make sure the Runnable has time to complete
33	<	try{Thread.sleep(1010);}catch(InterruptedException e){}
34	<	assertFalse(runnable.waiting);
22	>	* execute successfully executes a runnable
23	>	*/
24	>	public void testExecute() {
25	>	try {
26	>	TrackedShortRunnable runnable =new TrackedShortRunnable();
27	>	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
28	>	p1.execute(runnable);
29	>	assertFalse(runnable.done);
30	>	Thread.sleep(SHORT_DELAY_MS);
31	>	p1.shutdown();
32	>	try {
33	>	Thread.sleep(MEDIUM_DELAY_MS);
34	>	} catch(InterruptedException e){
35	>	unexpectedException();
36	>	}
37		assertTrue(runnable.done);
38	<	one.shutdown();
38	>	p1.shutdown();
39	>	joinPool(p1);
40		}
41		catch(Exception e){
42	<	fail("unexpected exception");
42	>	unexpectedException();
43		}
44	+
45		}
46
47	+
48		/**
49	<	*  Test to verify schedule successfully runs the given Callable.
78	<	*  The waiting flag shows that the Callable is not started until
79	<	*  immediately.
49	>	* delayed schedule of callable successfully executes after delay
50		*/
51	<	public void testSchedule1(){
52	<	try{
53	<	MyCallable callable = new MyCallable();
54	<	ScheduledExecutor one = new ScheduledExecutor(1);
55	<	Future f = one.schedule(callable, 500, TimeUnit.MILLISECONDS);
56	<	//      Thread.sleep(505);
57	<	assertTrue(callable.waiting);
88	<	Thread.sleep(2000);
51	>	public void testSchedule1() {
52	>	try {
53	>	TrackedCallable callable = new TrackedCallable();
54	>	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
55	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
56	>	assertFalse(callable.done);
57	>	Thread.sleep(MEDIUM_DELAY_MS);
58		assertTrue(callable.done);
59		assertEquals(Boolean.TRUE, f.get());
60	<	one.shutdown();
61	<	}catch(RejectedExecutionException e){}
62	<	catch(Exception e){}
60	>	p1.shutdown();
61	>	joinPool(p1);
62	>	} catch(RejectedExecutionException e){}
63	>	catch(Exception e){
64	>	e.printStackTrace();
65	>	unexpectedException();
66	>	}
67		}
68
69		/**
70	<	*  Another version of schedule, only using Runnable instead of Callable
71	<	*/
72	<	public void testSchedule3(){
73	<	try{
74	<	MyRunnable runnable = new MyRunnable();
75	<	ScheduledExecutor one = new ScheduledExecutor(1);
76	<	one.schedule(runnable, 500, TimeUnit.MILLISECONDS);
77	<	Thread.sleep(50);
78	<	assertTrue(runnable.waiting);
79	<	Thread.sleep(2000);
70	>	*  delayed schedule of runnable successfully executes after delay
71	>	*/
72	>	public void testSchedule3() {
73	>	try {
74	>	TrackedShortRunnable runnable = new TrackedShortRunnable();
75	>	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
76	>	p1.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS);
77	>	Thread.sleep(SHORT_DELAY_MS);
78	>	assertFalse(runnable.done);
79	>	Thread.sleep(MEDIUM_DELAY_MS);
80		assertTrue(runnable.done);
81	<	one.shutdown();
81	>	p1.shutdown();
82	>	joinPool(p1);
83		} catch(Exception e){
84	<	fail("unexpected exception");
84	>	unexpectedException();
85		}
86		}
87
88		/**
89	<	*  The final version of schedule, using both long, TimeUnit and Runnable
89	>	* scheduleAtFixedRate executes runnable after given initial delay
90		*/
91	<	public void testSchedule4(){
92	<	try{
93	<	MyRunnable runnable = new MyRunnable();
94	<	ScheduledExecutor one = new ScheduledExecutor(1);
95	<	one.schedule(runnable, 500, TimeUnit.MILLISECONDS);
96	<	//      Thread.sleep(505);
97	<	assertTrue(runnable.waiting);
124	<	Thread.sleep(2000);
91	>	public void testSchedule4() {
92	>	try {
93	>	TrackedShortRunnable runnable = new TrackedShortRunnable();
94	>	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
95	>	ScheduledFuture h = p1.scheduleAtFixedRate(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
96	>	assertFalse(runnable.done);
97	>	Thread.sleep(MEDIUM_DELAY_MS);
98		assertTrue(runnable.done);
99	<	one.shutdown();
99	>	h.cancel(true);
100	>	p1.shutdown();
101	>	joinPool(p1);
102		} catch(Exception e){
103	<	fail("unexpected exception");
103	>	unexpectedException();
104	>	}
105	>	}
106	>
107	>	/**
108	>	* scheduleWithFixedDelay executes runnable after given initial delay
109	>	*/
110	>	public void testSchedule5() {
111	>	try {
112	>	TrackedShortRunnable runnable = new TrackedShortRunnable();
113	>	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
114	>	ScheduledFuture h = p1.scheduleWithFixedDelay(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
115	>	assertFalse(runnable.done);
116	>	Thread.sleep(MEDIUM_DELAY_MS);
117	>	assertTrue(runnable.done);
118	>	h.cancel(true);
119	>	p1.shutdown();
120	>	joinPool(p1);
121	>	} catch(Exception e){
122	>	unexpectedException();
123		}
124		}
125
126	<
127	<	// exception tests
126	>	/**
127	>	*  execute (null) throws NPE
128	>	*/
129	>	public void testExecuteNull() {
130	>	ScheduledThreadPoolExecutor se = null;
131	>	try {
132	>	se = new ScheduledThreadPoolExecutor(1);
133	>	se.execute(null);
134	>	shouldThrow();
135	>	} catch(NullPointerException success){}
136	>	catch(Exception e){
137	>	unexpectedException();
138	>	}
139	>
140	>	joinPool(se);
141	>	}
142
143		/**
144	<	*  Test to verify schedule(Runnable, long) throws RejectedExecutionException
137	<	*  This occurs on an attempt to schedule a task on a shutdown executor
144	>	* schedule (null) throws NPE
145		*/
146	<	public void testSchedule1_RejectedExecutionException(){
147	<	try{
148	<	ScheduledExecutor se = new ScheduledExecutor(1);
146	>	public void testScheduleNull() {
147	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
148	>	try {
149	>	TrackedCallable callable = null;
150	>	Future f = se.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
151	>	shouldThrow();
152	>	} catch(NullPointerException success){}
153	>	catch(Exception e){
154	>	unexpectedException();
155	>	}
156	>	joinPool(se);
157	>	}
158	>
159	>	/**
160	>	* execute throws RejectedExecutionException if shutdown
161	>	*/
162	>	public void testSchedule1_RejectedExecutionException() {
163	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
164	>	try {
165		se.shutdown();
166	<	se.schedule(new Runnable(){
167	<	public void run(){}
168	<	}, 10000, TimeUnit.MILLISECONDS);
169	<	fail("shoud throw");
170	<	}catch(RejectedExecutionException e){}
166	>	se.schedule(new NoOpRunnable(),
167	>	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
168	>	shouldThrow();
169	>	} catch(RejectedExecutionException success){
170	>	}
171	>	joinPool(se);
172	>
173		}
174
175		/**
176	<	*  Test to verify schedule(Callable, long, TimeUnit) throws RejectedExecutionException
152	<	*  This occurs on an attempt to schedule a task on a shutdown executor
176	>	* schedule throws RejectedExecutionException if shutdown
177		*/
178	<	public void testSchedule2_RejectedExecutionException(){
179	<	try{
180	<	ScheduledExecutor se = new ScheduledExecutor(1);
178	>	public void testSchedule2_RejectedExecutionException() {
179	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
180	>	try {
181		se.shutdown();
182	<	se.schedule(new Callable(){
183	<	public Object call(){
184	<	return Boolean.TRUE;
185	<	}
186	<	}, (long)100, TimeUnit.SECONDS);
187	<	fail("should throw");
164	<	}catch(RejectedExecutionException e){}
182	>	se.schedule(new NoOpCallable(),
183	>	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
184	>	shouldThrow();
185	>	} catch(RejectedExecutionException success){
186	>	}
187	>	joinPool(se);
188		}
189
190		/**
191	<	*  Test to verify schedule(Callable, long) throws RejectedExecutionException
192	<	*  This occurs on an attempt to schedule a task on a shutdown executor
193	<	*/
194	<	public void testSchedule3_RejectedExecutionException(){
195	<	try{
173	<	ScheduledExecutor se = new ScheduledExecutor(1);
191	>	* schedule callable throws RejectedExecutionException if shutdown
192	>	*/
193	>	public void testSchedule3_RejectedExecutionException() {
194	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
195	>	try {
196		se.shutdown();
197	<	se.schedule(new Callable(){
198	<	public Object call(){
199	<	return Boolean.TRUE;
200	<	}
201	<	},  10000, TimeUnit.MILLISECONDS);
202	<	fail("should throw");
181	<	}catch(RejectedExecutionException e){}
197	>	se.schedule(new NoOpCallable(),
198	>	MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
199	>	shouldThrow();
200	>	} catch(RejectedExecutionException success){
201	>	}
202	>	joinPool(se);
203		}
204
205		/**
206	<	*  Test to verify scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
207	<	*  RejectedExecutionException.
208	<	*  This occurs on an attempt to schedule a task on a shutdown executor
209	<	*/
210	<	public void testScheduleAtFixedRate1_RejectedExecutionException(){
190	<	try{
191	<	ScheduledExecutor se = new ScheduledExecutor(1);
206	>	*  scheduleAtFixedRate throws RejectedExecutionException if shutdown
207	>	*/
208	>	public void testScheduleAtFixedRate1_RejectedExecutionException() {
209	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
210	>	try {
211		se.shutdown();
212	<	se.scheduleAtFixedRate(new Runnable(){
213	<	public void run(){}
214	<	}, 100, 100, TimeUnit.SECONDS);
215	<	fail("should throw");
216	<	}catch(RejectedExecutionException e){}
212	>	se.scheduleAtFixedRate(new NoOpRunnable(),
213	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
214	>	shouldThrow();
215	>	} catch(RejectedExecutionException success){
216	>	}
217	>	joinPool(se);
218		}
219
220		/**
221	<	*  Test to verify scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws
202	<	*  RejectedExecutionException.
203	<	*  This occurs on an attempt to schedule a task on a shutdown executor
221	>	* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
222		*/
223	<	public void testScheduleAtFixedRate2_RejectedExecutionException(){
224	<	try{
225	<	ScheduledExecutor se = new ScheduledExecutor(1);
223	>	public void testScheduleWithFixedDelay1_RejectedExecutionException() {
224	>	ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
225	>	try {
226		se.shutdown();
227	<	se.scheduleAtFixedRate(new Runnable(){
228	<	public void run(){}
229	<	},  1, 100, TimeUnit.SECONDS);
230	<	fail("should throw");
231	<	}catch(RejectedExecutionException e){}
227	>	se.scheduleWithFixedDelay(new NoOpRunnable(),
228	>	MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
229	>	shouldThrow();
230	>	} catch(RejectedExecutionException success){
231	>	}
232	>	joinPool(se);
233		}
234
235		/**
236	<	*  Test to verify scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws
237	<	*  RejectedExecutionException.
238	<	*  This occurs on an attempt to schedule a task on a shutdown executor
236	>	*  getActiveCount increases but doesn't overestimate, when a
237	>	*  thread becomes active
238	>	*/
239	>	public void testGetActiveCount() {
240	>	ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
241	>	assertEquals(0, p2.getActiveCount());
242	>	p2.execute(new SmallRunnable());
243	>	try {
244	>	Thread.sleep(SHORT_DELAY_MS);
245	>	} catch(Exception e){
246	>	unexpectedException();
247	>	}
248	>	assertEquals(1, p2.getActiveCount());
249	>	joinPool(p2);
250	>	}
251	>
252	>	/**
253	>	*    getCompletedTaskCount increases, but doesn't overestimate,
254	>	*   when tasks complete
255		*/
256	<	public void testScheduleWithFixedDelay1_RejectedExecutionException(){
257	<	try{
258	<	ScheduledExecutor se = new ScheduledExecutor(1);
259	<	se.shutdown();
260	<	se.scheduleWithFixedDelay(new Runnable(){
261	<	public void run(){}
262	<	}, 100, 100, TimeUnit.SECONDS);
263	<	fail("should throw");
264	<	}catch(RejectedExecutionException e){}
256	>	public void testGetCompletedTaskCount() {
257	>	ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
258	>	assertEquals(0, p2.getCompletedTaskCount());
259	>	p2.execute(new SmallRunnable());
260	>	try {
261	>	Thread.sleep(MEDIUM_DELAY_MS);
262	>	} catch(Exception e){
263	>	unexpectedException();
264	>	}
265	>	assertEquals(1, p2.getCompletedTaskCount());
266	>	joinPool(p2);
267	>	}
268	>
269	>	/**
270	>	*  getCorePoolSize returns size given in constructor if not otherwise set
271	>	*/
272	>	public void testGetCorePoolSize() {
273	>	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
274	>	assertEquals(1, p1.getCorePoolSize());
275	>	joinPool(p1);
276	>	}
277	>
278	>	/**
279	>	*    getLargestPoolSize increases, but doesn't overestimate, when
280	>	*   multiple threads active
281	>	*/
282	>	public void testGetLargestPoolSize() {
283	>	ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
284	>	assertEquals(0, p2.getLargestPoolSize());
285	>	p2.execute(new SmallRunnable());
286	>	p2.execute(new SmallRunnable());
287	>	try {
288	>	Thread.sleep(SHORT_DELAY_MS);
289	>	} catch(Exception e){
290	>	unexpectedException();
291	>	}
292	>	assertEquals(2, p2.getLargestPoolSize());
293	>	joinPool(p2);
294	>	}
295	>
296	>	/**
297	>	*   getPoolSize increases, but doesn't overestimate, when threads
298	>	*   become active
299	>	*/
300	>	public void testGetPoolSize() {
301	>	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
302	>	assertEquals(0, p1.getPoolSize());
303	>	p1.execute(new SmallRunnable());
304	>	assertEquals(1, p1.getPoolSize());
305	>	joinPool(p1);
306	>	}
307	>
308	>	/**
309	>	*    getTaskCount increases, but doesn't overestimate, when tasks
310	>	*    submitted
311	>	*/
312	>	public void testGetTaskCount() {
313	>	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
314	>	assertEquals(0, p1.getTaskCount());
315	>	for(int i = 0; i < 5; i++)
316	>	p1.execute(new SmallRunnable());
317	>	try {
318	>	Thread.sleep(SHORT_DELAY_MS);
319	>	} catch(Exception e){
320	>	unexpectedException();
321	>	}
322	>	assertEquals(5, p1.getTaskCount());
323	>	joinPool(p1);
324		}
325
326	+	/**
327	+	* getThreadFactory returns factory in constructor if not set
328	+	*/
329	+	public void testGetThreadFactory() {
330	+	ThreadFactory tf = new SimpleThreadFactory();
331	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, tf);
332	+	assertSame(tf, p.getThreadFactory());
333	+	p.shutdown();
334	+	joinPool(p);
335	+	}
336	+
337	+	/**
338	+	* setThreadFactory sets the thread factory returned by getThreadFactory
339	+	*/
340	+	public void testSetThreadFactory() {
341	+	ThreadFactory tf = new SimpleThreadFactory();
342	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
343	+	p.setThreadFactory(tf);
344	+	assertSame(tf, p.getThreadFactory());
345	+	p.shutdown();
346	+	joinPool(p);
347	+	}
348	+
349	+	/**
350	+	* setThreadFactory(null) throws NPE
351	+	*/
352	+	public void testSetThreadFactoryNull() {
353	+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
354	+	try {
355	+	p.setThreadFactory(null);
356	+	shouldThrow();
357	+	} catch (NullPointerException success) {
358	+	} finally {
359	+	joinPool(p);
360	+	}
361	+	}
362	+
363		/**
364	<	*  Test to verify scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws
234	<	*  RejectedExecutionException.
235	<	*  This occurs on an attempt to schedule a task on a shutdown executor
364	>	*   is isShutDown is false before shutdown, true after
365		*/
366	<	public void testScheduleWithFixedDelay2_RejectedExecutionException(){
367	<	try{
368	<	ScheduledExecutor se = new ScheduledExecutor(1);
369	<	se.shutdown();
370	<	se.scheduleWithFixedDelay(new Runnable(){
371	<	public void run(){}
372	<	},  1, 100, TimeUnit.SECONDS);
373	<	fail("should throw");
374	<	}catch(RejectedExecutionException e){}
366	>	public void testIsShutdown() {
367	>
368	>	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
369	>	try {
370	>	assertFalse(p1.isShutdown());
371	>	}
372	>	finally {
373	>	p1.shutdown();
374	>	}
375	>	assertTrue(p1.isShutdown());
376		}
377
378	+
379		/**
380	<	*  Test to verify execute throws RejectedExecutionException
250	<	*  This occurs on an attempt to schedule a task on a shutdown executor
380	>	*   isTerminated is false before termination, true after
381		*/
382	<	public void testExecute_RejectedExecutionException(){
383	<	try{
384	<	ScheduledExecutor se = new ScheduledExecutor(1);
385	<	se.shutdown();
386	<	se.execute(new Runnable(){
387	<	public void run(){}
388	<	});
389	<	fail("should throw");
390	<	}catch(RejectedExecutionException e){}
382	>	public void testIsTerminated() {
383	>	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
384	>	try {
385	>	p1.execute(new SmallRunnable());
386	>	} finally {
387	>	p1.shutdown();
388	>	}
389	>	try {
390	>	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
391	>	assertTrue(p1.isTerminated());
392	>	} catch(Exception e){
393	>	unexpectedException();
394	>	}
395		}
396
397	+	/**
398	+	*  isTerminating is not true when running or when terminated
399	+	*/
400	+	public void testIsTerminating() {
401	+	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
402	+	assertFalse(p1.isTerminating());
403	+	try {
404	+	p1.execute(new SmallRunnable());
405	+	assertFalse(p1.isTerminating());
406	+	} finally {
407	+	p1.shutdown();
408	+	}
409	+	try {
410	+	assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
411	+	assertTrue(p1.isTerminated());
412	+	assertFalse(p1.isTerminating());
413	+	} catch(Exception e){
414	+	unexpectedException();
415	+	}
416	+	}
417	+
418	+	/**
419	+	* getQueue returns the work queue, which contains queued tasks
420	+	*/
421	+	public void testGetQueue() {
422	+	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
423	+	ScheduledFuture[] tasks = new ScheduledFuture[5];
424	+	for(int i = 0; i < 5; i++){
425	+	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
426	+	}
427	+	try {
428	+	Thread.sleep(SHORT_DELAY_MS);
429	+	BlockingQueue<Runnable> q = p1.getQueue();
430	+	assertTrue(q.contains(tasks[4]));
431	+	assertFalse(q.contains(tasks[0]));
432	+	p1.shutdownNow();
433	+	} catch(Exception e) {
434	+	unexpectedException();
435	+	} finally {
436	+	joinPool(p1);
437	+	}
438	+	}
439	+
440	+	/**
441	+	* remove(task) removes queued task, and fails to remove active task
442	+	*/
443	+	public void testRemove() {
444	+	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
445	+	ScheduledFuture[] tasks = new ScheduledFuture[5];
446	+	for(int i = 0; i < 5; i++){
447	+	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
448	+	}
449	+	try {
450	+	Thread.sleep(SHORT_DELAY_MS);
451	+	BlockingQueue<Runnable> q = p1.getQueue();
452	+	assertFalse(p1.remove((Runnable)tasks[0]));
453	+	assertTrue(q.contains((Runnable)tasks[4]));
454	+	assertTrue(q.contains((Runnable)tasks[3]));
455	+	assertTrue(p1.remove((Runnable)tasks[4]));
456	+	assertFalse(p1.remove((Runnable)tasks[4]));
457	+	assertFalse(q.contains((Runnable)tasks[4]));
458	+	assertTrue(q.contains((Runnable)tasks[3]));
459	+	assertTrue(p1.remove((Runnable)tasks[3]));
460	+	assertFalse(q.contains((Runnable)tasks[3]));
461	+	p1.shutdownNow();
462	+	} catch(Exception e) {
463	+	unexpectedException();
464	+	} finally {
465	+	joinPool(p1);
466	+	}
467	+	}
468	+
469	+	/**
470	+	*  purge removes cancelled tasks from the queue
471	+	*/
472	+	public void testPurge() {
473	+	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
474	+	ScheduledFuture[] tasks = new ScheduledFuture[5];
475	+	for(int i = 0; i < 5; i++){
476	+	tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
477	+	}
478	+	int max = 5;
479	+	if (tasks[4].cancel(true)) --max;
480	+	if (tasks[3].cancel(true)) --max;
481	+	p1.purge();
482	+	long count = p1.getTaskCount();
483	+	assertTrue(count > 0 && count <= max);
484	+	joinPool(p1);
485	+	}
486	+
487	+	/**
488	+	*  shutDownNow returns a list containing tasks that were not run
489	+	*/
490	+	public void testShutDownNow() {
491	+	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
492	+	for(int i = 0; i < 5; i++)
493	+	p1.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
494	+	List l = p1.shutdownNow();
495	+	assertTrue(p1.isShutdown());
496	+	assertTrue(l.size() > 0 && l.size() <= 5);
497	+	joinPool(p1);
498	+	}
499	+
500	+	/**
501	+	* In default setting, shutdown cancels periodic but not delayed
502	+	* tasks at shutdown
503	+	*/
504	+	public void testShutDown1() {
505	+	try {
506	+	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
507	+	assertTrue(p1.getExecuteExistingDelayedTasksAfterShutdownPolicy());
508	+	assertFalse(p1.getContinueExistingPeriodicTasksAfterShutdownPolicy());
509	+
510	+	ScheduledFuture[] tasks = new ScheduledFuture[5];
511	+	for(int i = 0; i < 5; i++)
512	+	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
513	+	p1.shutdown();
514	+	BlockingQueue q = p1.getQueue();
515	+	for (Iterator it = q.iterator(); it.hasNext();) {
516	+	ScheduledFuture t = (ScheduledFuture)it.next();
517	+	assertFalse(t.isCancelled());
518	+	}
519	+	assertTrue(p1.isShutdown());
520	+	Thread.sleep(SMALL_DELAY_MS);
521	+	for (int i = 0; i < 5; ++i) {
522	+	assertTrue(tasks[i].isDone());
523	+	assertFalse(tasks[i].isCancelled());
524	+	}
525	+
526	+	}
527	+	catch(Exception ex) {
528	+	unexpectedException();
529	+	}
530	+	}
531	+
532	+
533	+	/**
534	+	* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
535	+	* delayed tasks are cancelled at shutdown
536	+	*/
537	+	public void testShutDown2() {
538	+	try {
539	+	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
540	+	p1.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
541	+	ScheduledFuture[] tasks = new ScheduledFuture[5];
542	+	for(int i = 0; i < 5; i++)
543	+	tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
544	+	p1.shutdown();
545	+	assertTrue(p1.isShutdown());
546	+	BlockingQueue q = p1.getQueue();
547	+	assertTrue(q.isEmpty());
548	+	Thread.sleep(SMALL_DELAY_MS);
549	+	assertTrue(p1.isTerminated());
550	+	}
551	+	catch(Exception ex) {
552	+	unexpectedException();
553	+	}
554	+	}
555	+
556	+
557	+	/**
558	+	* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
559	+	* periodic tasks are not cancelled at shutdown
560	+	*/
561	+	public void testShutDown3() {
562	+	try {
563	+	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
564	+	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
565	+	ScheduledFuture task =
566	+	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
567	+	p1.shutdown();
568	+	assertTrue(p1.isShutdown());
569	+	BlockingQueue q = p1.getQueue();
570	+	assertTrue(q.isEmpty());
571	+	Thread.sleep(SHORT_DELAY_MS);
572	+	assertTrue(p1.isTerminated());
573	+	}
574	+	catch(Exception ex) {
575	+	unexpectedException();
576	+	}
577	+	}
578	+
579	+	/**
580	+	* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
581	+	* periodic tasks are cancelled at shutdown
582	+	*/
583	+	public void testShutDown4() {
584	+	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
585	+	try {
586	+	p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
587	+	ScheduledFuture task =
588	+	p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
589	+	assertFalse(task.isCancelled());
590	+	p1.shutdown();
591	+	assertFalse(task.isCancelled());
592	+	assertFalse(p1.isTerminated());
593	+	assertTrue(p1.isShutdown());
594	+	Thread.sleep(SHORT_DELAY_MS);
595	+	assertFalse(task.isCancelled());
596	+	task.cancel(true);
597	+	assertTrue(task.isCancelled());
598	+	Thread.sleep(SHORT_DELAY_MS);
599	+	assertTrue(p1.isTerminated());
600	+	}
601	+	catch(Exception ex) {
602	+	unexpectedException();
603	+	}
604	+	finally {
605	+	p1.shutdownNow();
606	+	}
607	+	}
608	+
609	+	/**
610	+	* completed submit of callable returns result
611	+	*/
612	+	public void testSubmitCallable() {
613	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
614	+	try {
615	+	Future<String> future = e.submit(new StringTask());
616	+	String result = future.get();
617	+	assertSame(TEST_STRING, result);
618	+	}
619	+	catch (ExecutionException ex) {
620	+	unexpectedException();
621	+	}
622	+	catch (InterruptedException ex) {
623	+	unexpectedException();
624	+	} finally {
625	+	joinPool(e);
626	+	}
627	+	}
628	+
629	+	/**
630	+	* completed submit of runnable returns successfully
631	+	*/
632	+	public void testSubmitRunnable() {
633	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
634	+	try {
635	+	Future<?> future = e.submit(new NoOpRunnable());
636	+	future.get();
637	+	assertTrue(future.isDone());
638	+	}
639	+	catch (ExecutionException ex) {
640	+	unexpectedException();
641	+	}
642	+	catch (InterruptedException ex) {
643	+	unexpectedException();
644	+	} finally {
645	+	joinPool(e);
646	+	}
647	+	}
648	+
649	+	/**
650	+	* completed submit of (runnable, result) returns result
651	+	*/
652	+	public void testSubmitRunnable2() {
653	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
654	+	try {
655	+	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
656	+	String result = future.get();
657	+	assertSame(TEST_STRING, result);
658	+	}
659	+	catch (ExecutionException ex) {
660	+	unexpectedException();
661	+	}
662	+	catch (InterruptedException ex) {
663	+	unexpectedException();
664	+	} finally {
665	+	joinPool(e);
666	+	}
667	+	}
668	+
669	+
670	+
671	+
672	+
673	+	/**
674	+	* invokeAny(null) throws NPE
675	+	*/
676	+	public void testInvokeAny1() {
677	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
678	+	try {
679	+	e.invokeAny(null);
680	+	} catch (NullPointerException success) {
681	+	} catch(Exception ex) {
682	+	unexpectedException();
683	+	} finally {
684	+	joinPool(e);
685	+	}
686	+	}
687	+
688	+	/**
689	+	* invokeAny(empty collection) throws IAE
690	+	*/
691	+	public void testInvokeAny2() {
692	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
693	+	try {
694	+	e.invokeAny(new ArrayList<Callable<String>>());
695	+	} catch (IllegalArgumentException success) {
696	+	} catch(Exception ex) {
697	+	unexpectedException();
698	+	} finally {
699	+	joinPool(e);
700	+	}
701	+	}
702	+
703	+	/**
704	+	* invokeAny(c) throws NPE if c has null elements
705	+	*/
706	+	public void testInvokeAny3() {
707	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
708	+	try {
709	+	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
710	+	l.add(new StringTask());
711	+	l.add(null);
712	+	e.invokeAny(l);
713	+	} catch (NullPointerException success) {
714	+	} catch(Exception ex) {
715	+	unexpectedException();
716	+	} finally {
717	+	joinPool(e);
718	+	}
719	+	}
720	+
721	+	/**
722	+	* invokeAny(c) throws ExecutionException if no task completes
723	+	*/
724	+	public void testInvokeAny4() {
725	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
726	+	try {
727	+	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
728	+	l.add(new NPETask());
729	+	e.invokeAny(l);
730	+	} catch (ExecutionException success) {
731	+	} catch(Exception ex) {
732	+	unexpectedException();
733	+	} finally {
734	+	joinPool(e);
735	+	}
736	+	}
737	+
738	+	/**
739	+	* invokeAny(c) returns result of some task
740	+	*/
741	+	public void testInvokeAny5() {
742	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
743	+	try {
744	+	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
745	+	l.add(new StringTask());
746	+	l.add(new StringTask());
747	+	String result = e.invokeAny(l);
748	+	assertSame(TEST_STRING, result);
749	+	} catch (ExecutionException success) {
750	+	} catch(Exception ex) {
751	+	unexpectedException();
752	+	} finally {
753	+	joinPool(e);
754	+	}
755	+	}
756	+
757	+	/**
758	+	* invokeAll(null) throws NPE
759	+	*/
760	+	public void testInvokeAll1() {
761	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
762	+	try {
763	+	e.invokeAll(null);
764	+	} catch (NullPointerException success) {
765	+	} catch(Exception ex) {
766	+	unexpectedException();
767	+	} finally {
768	+	joinPool(e);
769	+	}
770	+	}
771	+
772	+	/**
773	+	* invokeAll(empty collection) returns empty collection
774	+	*/
775	+	public void testInvokeAll2() {
776	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
777	+	try {
778	+	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
779	+	assertTrue(r.isEmpty());
780	+	} catch(Exception ex) {
781	+	unexpectedException();
782	+	} finally {
783	+	joinPool(e);
784	+	}
785	+	}
786	+
787	+	/**
788	+	* invokeAll(c) throws NPE if c has null elements
789	+	*/
790	+	public void testInvokeAll3() {
791	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
792	+	try {
793	+	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
794	+	l.add(new StringTask());
795	+	l.add(null);
796	+	e.invokeAll(l);
797	+	} catch (NullPointerException success) {
798	+	} catch(Exception ex) {
799	+	unexpectedException();
800	+	} finally {
801	+	joinPool(e);
802	+	}
803	+	}
804	+
805	+	/**
806	+	* get of invokeAll(c) throws exception on failed task
807	+	*/
808	+	public void testInvokeAll4() {
809	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
810	+	try {
811	+	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
812	+	l.add(new NPETask());
813	+	List<Future<String>> result = e.invokeAll(l);
814	+	assertEquals(1, result.size());
815	+	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
816	+	it.next().get();
817	+	} catch(ExecutionException success) {
818	+	} catch(Exception ex) {
819	+	unexpectedException();
820	+	} finally {
821	+	joinPool(e);
822	+	}
823	+	}
824	+
825	+	/**
826	+	* invokeAll(c) returns results of all completed tasks
827	+	*/
828	+	public void testInvokeAll5() {
829	+	ExecutorService e = new ScheduledThreadPoolExecutor(2);
830	+	try {
831	+	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
832	+	l.add(new StringTask());
833	+	l.add(new StringTask());
834	+	List<Future<String>> result = e.invokeAll(l);
835	+	assertEquals(2, result.size());
836	+	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
837	+	assertSame(TEST_STRING, it.next().get());
838	+	} catch (ExecutionException success) {
839	+	} catch(Exception ex) {
840	+	unexpectedException();
841	+	} finally {
842	+	joinPool(e);
843	+	}
844	+	}
845	+
846	+
847		}

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