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

Comparing jsr166/src/test/tck/FutureTaskTest.java (file contents):
Revision 1.6 by dl, Thu Sep 25 11:02:41 2003 UTC vs.
Revision 1.20 by jsr166, Thu Sep 16 00:52:49 2010 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/licenses/publicdomain
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9		import junit.framework.*;
10		import java.util.concurrent.*;
11	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
12		import java.util.*;
13
14		public class FutureTaskTest extends JSR166TestCase {
15
16		public static void main(String[] args) {
17	<	junit.textui.TestRunner.run (suite());
17	>	junit.textui.TestRunner.run(suite());
18		}
19		public static Test suite() {
20	<	return new TestSuite(FutureTaskTest.class);
20	>	return new TestSuite(FutureTaskTest.class);
21		}
22
23		/**
24		* Subclass to expose protected methods
25		*/
26	<	static class MyFutureTask extends FutureTask {
27	<	public MyFutureTask(Callable r) { super(r); }
28	<	public boolean reset() { return super.reset(); }
27	<	public void setCancelled() { super.setCancelled(); }
28	<	public void setDone() { super.setDone(); }
26	>	static class PublicFutureTask extends FutureTask {
27	>	public PublicFutureTask(Callable r) { super(r); }
28	>	public boolean runAndReset() { return super.runAndReset(); }
29		public void set(Object x) { super.set(x); }
30		public void setException(Throwable t) { super.setException(t); }
31		}
#	Line 37 | Line 37 | public class FutureTaskTest extends JSR1
37		try {
38		FutureTask task = new FutureTask(null);
39		shouldThrow();
40	<	}
41	<	catch(NullPointerException success) {
42	<	}
40	>	} catch (NullPointerException success) {}
41		}
42
43		/**
#	Line 49 | Line 47 | public class FutureTaskTest extends JSR1
47		try {
48		FutureTask task = new FutureTask(null, Boolean.TRUE);
49		shouldThrow();
50	<	}
53	<	catch(NullPointerException success) {
54	<	}
50	>	} catch (NullPointerException success) {}
51		}
52
53		/**
54		* isDone is true when a task completes
55		*/
56		public void testIsDone() {
57	<	FutureTask task = new FutureTask( new NoOpCallable());
58	<	task.run();
59	<	assertTrue(task.isDone());
60	<	assertFalse(task.isCancelled());
57	>	FutureTask task = new FutureTask(new NoOpCallable());
58	>	task.run();
59	>	assertTrue(task.isDone());
60	>	assertFalse(task.isCancelled());
61		}
62
63		/**
64	<	* reset of a done task succeeds and changes status to not done
64	>	* runAndReset of a non-cancelled task succeeds
65		*/
66	<	public void testReset() {
67	<	MyFutureTask task = new MyFutureTask(new NoOpCallable());
68	<	task.run();
73	<	assertTrue(task.isDone());
74	<	assertTrue(task.reset());
66	>	public void testRunAndReset() {
67	>	PublicFutureTask task = new PublicFutureTask(new NoOpCallable());
68	>	assertTrue(task.runAndReset());
69		assertFalse(task.isDone());
70		}
71
72		/**
73	<	* Resetting after cancellation fails
73	>	* runAndReset after cancellation fails
74		*/
75		public void testResetAfterCancel() {
76	<	MyFutureTask task = new MyFutureTask(new NoOpCallable());
76	>	PublicFutureTask task = new PublicFutureTask(new NoOpCallable());
77		assertTrue(task.cancel(false));
78	<	task.run();
79	<	assertTrue(task.isDone());
80	<	assertTrue(task.isCancelled());
87	<	assertFalse(task.reset());
78	>	assertFalse(task.runAndReset());
79	>	assertTrue(task.isDone());
80	>	assertTrue(task.isCancelled());
81		}
82
90	–	/**
91	–	* setDone of new task causes isDone to be true
92	–	*/
93	–	public void testSetDone() {
94	–	MyFutureTask task = new MyFutureTask(new NoOpCallable());
95	–	task.setDone();
96	–	assertTrue(task.isDone());
97	–	assertFalse(task.isCancelled());
98	–	}
83
100	–	/**
101	–	* setCancelled of a new task causes isCancelled to be true
102	–	*/
103	–	public void testSetCancelled() {
104	–	MyFutureTask task = new MyFutureTask(new NoOpCallable());
105	–	assertTrue(task.cancel(false));
106	–	task.setCancelled();
107	–	assertTrue(task.isDone());
108	–	assertTrue(task.isCancelled());
109	–	}
84
85		/**
86	<	* setting value gauses get to return it
86	>	* setting value causes get to return it
87		*/
88	<	public void testSet() {
89	<	MyFutureTask task = new MyFutureTask(new NoOpCallable());
88	>	public void testSet() throws Exception {
89	>	PublicFutureTask task = new PublicFutureTask(new NoOpCallable());
90		task.set(one);
91	<	try {
118	<	assertEquals(task.get(), one);
119	<	}
120	<	catch(Exception e) {
121	<	unexpectedException();
122	<	}
91	>	assertSame(task.get(), one);
92		}
93
94		/**
95		* setException causes get to throw ExecutionException
96		*/
97	<	public void testSetException() {
97	>	public void testSetException() throws Exception {
98		Exception nse = new NoSuchElementException();
99	<	MyFutureTask task = new MyFutureTask(new NoOpCallable());
99	>	PublicFutureTask task = new PublicFutureTask(new NoOpCallable());
100		task.setException(nse);
101		try {
102		Object x = task.get();
103		shouldThrow();
104	<	}
105	<	catch(ExecutionException ee) {
137	<	Throwable cause = ee.getCause();
138	<	assertEquals(cause, nse);
139	<	}
140	<	catch(Exception e) {
141	<	unexpectedException();
104	>	} catch (ExecutionException success) {
105	>	assertSame(success.getCause(), nse);
106		}
107		}
108
#	Line 146 | Line 110 | public class FutureTaskTest extends JSR1
110		*  Cancelling before running succeeds
111		*/
112		public void testCancelBeforeRun() {
113	<	FutureTask task = new FutureTask( new NoOpCallable());
113	>	FutureTask task = new FutureTask(new NoOpCallable());
114		assertTrue(task.cancel(false));
115	<	task.run();
116	<	assertTrue(task.isDone());
117	<	assertTrue(task.isCancelled());
115	>	task.run();
116	>	assertTrue(task.isDone());
117	>	assertTrue(task.isCancelled());
118		}
119
120		/**
121		* Cancel(true) before run succeeds
122		*/
123		public void testCancelBeforeRun2() {
124	<	FutureTask task = new FutureTask( new NoOpCallable());
124	>	FutureTask task = new FutureTask(new NoOpCallable());
125		assertTrue(task.cancel(true));
126	<	task.run();
127	<	assertTrue(task.isDone());
128	<	assertTrue(task.isCancelled());
126	>	task.run();
127	>	assertTrue(task.isDone());
128	>	assertTrue(task.isCancelled());
129		}
130
131		/**
132		* cancel of a completed task fails
133		*/
134		public void testCancelAfterRun() {
135	<	FutureTask task = new FutureTask( new NoOpCallable());
136	<	task.run();
135	>	FutureTask task = new FutureTask(new NoOpCallable());
136	>	task.run();
137		assertFalse(task.cancel(false));
138	<	assertTrue(task.isDone());
139	<	assertFalse(task.isCancelled());
138	>	assertTrue(task.isDone());
139	>	assertFalse(task.isCancelled());
140		}
141
142		/**
143		* cancel(true) interrupts a running task
144		*/
145	<	public void testCancelInterrupt() {
146	<	FutureTask task = new FutureTask( new Callable() {
147	<	public Object call() {
148	<	try {
149	<	Thread.sleep(MEDIUM_DELAY_MS);
186	<	threadShouldThrow();
187	<	}
188	<	catch (InterruptedException success) {}
145	>	public void testCancelInterrupt() throws InterruptedException {
146	>	final FutureTask task =
147	>	new FutureTask(new CheckedInterruptedCallable<Object>() {
148	>	public Object realCall() throws InterruptedException {
149	>	Thread.sleep(SMALL_DELAY_MS);
150		return Boolean.TRUE;
151	<	} });
152	<	Thread t = new  Thread(task);
151	>	}});
152	>
153	>	Thread t = new Thread(task);
154		t.start();
155	<
156	<	try {
157	<	Thread.sleep(SHORT_DELAY_MS);
158	<	assertTrue(task.cancel(true));
159	<	t.join();
198	<	assertTrue(task.isDone());
199	<	assertTrue(task.isCancelled());
200	<	} catch(InterruptedException e){
201	<	unexpectedException();
202	<	}
155	>	Thread.sleep(SHORT_DELAY_MS);
156	>	assertTrue(task.cancel(true));
157	>	t.join();
158	>	assertTrue(task.isDone());
159	>	assertTrue(task.isCancelled());
160		}
161
162
163		/**
164		* cancel(false) does not interrupt a running task
165		*/
166	<	public void testCancelNoInterrupt() {
167	<	FutureTask task = new FutureTask( new Callable() {
168	<	public Object call() {
169	<	try {
170	<	Thread.sleep(MEDIUM_DELAY_MS);
214	<	}
215	<	catch (InterruptedException success) {
216	<	threadFail("should not interrupt");
217	<	}
166	>	public void testCancelNoInterrupt() throws InterruptedException {
167	>	final FutureTask task =
168	>	new FutureTask(new CheckedCallable<Object>() {
169	>	public Object realCall() throws InterruptedException {
170	>	Thread.sleep(MEDIUM_DELAY_MS);
171		return Boolean.TRUE;
172	<	} });
173	<	Thread t = new  Thread(task);
172	>	}});
173	>
174	>	Thread t = new Thread(task);
175		t.start();
176	<
177	<	try {
178	<	Thread.sleep(SHORT_DELAY_MS);
179	<	assertTrue(task.cancel(false));
180	<	t.join();
227	<	assertTrue(task.isDone());
228	<	assertTrue(task.isCancelled());
229	<	} catch(InterruptedException e){
230	<	unexpectedException();
231	<	}
176	>	Thread.sleep(SHORT_DELAY_MS);
177	>	assertTrue(task.cancel(false));
178	>	t.join();
179	>	assertTrue(task.isDone());
180	>	assertTrue(task.isCancelled());
181		}
182
183		/**
184		* set in one thread causes get in another thread to retrieve value
185		*/
186	<	public void testGet1() {
187	<	final FutureTask ft = new FutureTask(new Callable() {
188	<	public Object call() {
189	<	try {
241	<	Thread.sleep(MEDIUM_DELAY_MS);
242	<	} catch(InterruptedException e){
243	<	threadUnexpectedException();
244	<	}
186	>	public void testGet1() throws InterruptedException {
187	>	final FutureTask ft =
188	>	new FutureTask(new CheckedCallable<Object>() {
189	>	public Object realCall() throws InterruptedException {
190		return Boolean.TRUE;
191	<	}
192	<	});
193	<	Thread t = new Thread(new Runnable() {
194	<	public void run() {
195	<	try {
251	<	ft.get();
252	<	} catch(Exception e){
253	<	threadUnexpectedException();
254	<	}
255	<	}
256	<	});
257	<	try {
258	<	assertFalse(ft.isDone());
259	<	assertFalse(ft.isCancelled());
260	<	t.start();
261	<	Thread.sleep(SHORT_DELAY_MS);
262	<	ft.run();
263	<	t.join();
264	<	assertTrue(ft.isDone());
265	<	assertFalse(ft.isCancelled());
266	<	} catch(InterruptedException e){
267	<	unexpectedException();
191	>	}});
192	>	Thread t = new Thread(new CheckedRunnable() {
193	>	public void realRun() throws Exception {
194	>	assertSame(Boolean.TRUE, ft.get());
195	>	}});
196
197	<	}
197	>	assertFalse(ft.isDone());
198	>	assertFalse(ft.isCancelled());
199	>	t.start();
200	>	Thread.sleep(SHORT_DELAY_MS);
201	>	ft.run();
202	>	t.join();
203	>	assertTrue(ft.isDone());
204	>	assertFalse(ft.isCancelled());
205		}
206
207		/**
208		* set in one thread causes timed get in another thread to retrieve value
209		*/
210	<	public void testTimedGet1() {
211	<	final FutureTask ft = new FutureTask(new Callable() {
212	<	public Object call() {
213	<	try {
279	<	Thread.sleep(MEDIUM_DELAY_MS);
280	<	} catch(InterruptedException e){
281	<	threadUnexpectedException();
282	<	}
210	>	public void testTimedGet1() throws InterruptedException {
211	>	final FutureTask ft =
212	>	new FutureTask(new CheckedCallable<Object>() {
213	>	public Object realCall() throws InterruptedException {
214		return Boolean.TRUE;
215	<	}
216	<	});
217	<	Thread t = new Thread(new Runnable() {
218	<	public void run() {
219	<	try {
220	<	ft.get(SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
221	<	} catch(TimeoutException success) {
222	<	} catch(Exception e){
223	<	threadUnexpectedException();
224	<	}
225	<	}
226	<	});
227	<	try {
228	<	assertFalse(ft.isDone());
298	<	assertFalse(ft.isCancelled());
299	<	t.start();
300	<	ft.run();
301	<	t.join();
302	<	assertTrue(ft.isDone());
303	<	assertFalse(ft.isCancelled());
304	<	} catch(InterruptedException e){
305	<	unexpectedException();
306	<
307	<	}
215	>	}});
216	>	Thread t = new Thread(new CheckedRunnable() {
217	>	public void realRun() throws Exception {
218	>	assertSame(Boolean.TRUE, ft.get(SMALL_DELAY_MS, MILLISECONDS));
219	>	}});
220	>
221	>	assertFalse(ft.isDone());
222	>	assertFalse(ft.isCancelled());
223	>	t.start();
224	>	Thread.sleep(SHORT_DELAY_MS);
225	>	ft.run();
226	>	t.join();
227	>	assertTrue(ft.isDone());
228	>	assertFalse(ft.isCancelled());
229		}
230
231		/**
232	<	*  Cancelling a task causes timed get in another thread to throw CancellationException
233	<	*/
234	<	public void testTimedGet_Cancellation() {
235	<	final FutureTask ft = new FutureTask(new Callable() {
236	<	public Object call() {
237	<	try {
238	<	Thread.sleep(SMALL_DELAY_MS);
239	<	threadShouldThrow();
240	<	} catch(InterruptedException e) {
241	<	}
242	<	return Boolean.TRUE;
243	<	}
244	<	});
245	<	try {
246	<	Thread t1 = new Thread(new Runnable() {
247	<	public void run() {
248	<	try {
249	<	ft.get(MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
250	<	threadShouldThrow();
251	<	} catch(CancellationException success) {}
252	<	catch(Exception e){
253	<	threadUnexpectedException();
333	<	}
334	<	}
335	<	});
336	<	Thread t2 = new Thread(ft);
337	<	t1.start();
338	<	t2.start();
339	<	Thread.sleep(SHORT_DELAY_MS);
340	<	ft.cancel(true);
341	<	t1.join();
342	<	t2.join();
343	<	} catch(InterruptedException ie){
344	<	unexpectedException();
345	<	}
232	>	*  Cancelling a task causes timed get in another thread to throw
233	>	*  CancellationException
234	>	*/
235	>	public void testTimedGet_Cancellation() throws InterruptedException {
236	>	final FutureTask ft =
237	>	new FutureTask(new CheckedInterruptedCallable<Object>() {
238	>	public Object realCall() throws InterruptedException {
239	>	Thread.sleep(SMALL_DELAY_MS);
240	>	return Boolean.TRUE;
241	>	}});
242	>
243	>	Thread t1 = new ThreadShouldThrow(CancellationException.class) {
244	>	public void realRun() throws Exception {
245	>	ft.get(MEDIUM_DELAY_MS, MILLISECONDS);
246	>	}};
247	>	Thread t2 = new Thread(ft);
248	>	t1.start();
249	>	t2.start();
250	>	Thread.sleep(SHORT_DELAY_MS);
251	>	ft.cancel(true);
252	>	t1.join();
253	>	t2.join();
254		}
255
256		/**
257	<	* Cancelling a task causes get in another thread to throw CancellationException
258	<	*/
259	<	public void testGet_Cancellation() {
260	<	final FutureTask ft = new FutureTask(new Callable() {
261	<	public Object call() {
262	<	try {
263	<	Thread.sleep(MEDIUM_DELAY_MS);
264	<	threadShouldThrow();
357	<	} catch(InterruptedException e){
358	<	}
257	>	* Cancelling a task causes get in another thread to throw
258	>	* CancellationException
259	>	*/
260	>	public void testGet_Cancellation() throws InterruptedException {
261	>	final FutureTask ft =
262	>	new FutureTask(new CheckedInterruptedCallable<Object>() {
263	>	public Object realCall() throws InterruptedException {
264	>	Thread.sleep(SMALL_DELAY_MS);
265		return Boolean.TRUE;
266	<	}
267	<	});
268	<	try {
269	<	Thread t1 = new Thread(new Runnable() {
270	<	public void run() {
271	<	try {
272	<	ft.get();
273	<	threadShouldThrow();
274	<	} catch(CancellationException success){
275	<	}
276	<	catch(Exception e){
277	<	threadUnexpectedException();
278	<	}
373	<	}
374	<	});
375	<	Thread t2 = new Thread(ft);
376	<	t1.start();
377	<	t2.start();
378	<	Thread.sleep(SHORT_DELAY_MS);
379	<	ft.cancel(true);
380	<	t1.join();
381	<	t2.join();
382	<	} catch(InterruptedException success){
383	<	unexpectedException();
384	<	}
266	>	}});
267	>	Thread t1 = new ThreadShouldThrow(CancellationException.class) {
268	>	public void realRun() throws Exception {
269	>	ft.get();
270	>	}};
271	>
272	>	Thread t2 = new Thread(ft);
273	>	t1.start();
274	>	t2.start();
275	>	Thread.sleep(SHORT_DELAY_MS);
276	>	ft.cancel(true);
277	>	t1.join();
278	>	t2.join();
279		}
280	<
280	>
281
282		/**
283		* A runtime exception in task causes get to throw ExecutionException
284		*/
285	<	public void testGet_ExecutionException() {
286	<	final FutureTask ft = new FutureTask(new Callable() {
287	<	public Object call() {
288	<	int i = 5/0;
289	<	return Boolean.TRUE;
290	<	}
291	<	});
292	<	try {
293	<	ft.run();
294	<	ft.get();
295	<	shouldThrow();
296	<	} catch(ExecutionException success){
285	>	public void testGet_ExecutionException() throws InterruptedException {
286	>	final FutureTask ft = new FutureTask(new Callable() {
287	>	public Object call() {
288	>	return 5/0;
289	>	}});
290	>
291	>	ft.run();
292	>	try {
293	>	ft.get();
294	>	shouldThrow();
295	>	} catch (ExecutionException success) {
296	>	assertTrue(success.getCause() instanceof ArithmeticException);
297		}
404	–	catch(Exception e){
405	–	unexpectedException();
406	–	}
407	–	}
408	–
409	–	/**
410	–	*  A runtime exception in task causes timed get to throw ExecutionException
411	–	*/
412	–	public void testTimedGet_ExecutionException2() {
413	–	final FutureTask ft = new FutureTask(new Callable() {
414	–	public Object call() {
415	–	int i = 5/0;
416	–	return Boolean.TRUE;
417	–	}
418	–	});
419	–	try {
420	–	ft.run();
421	–	ft.get(SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
422	–	shouldThrow();
423	–	} catch(ExecutionException success) {
424	–	} catch(TimeoutException success) { } // unlikely but OK
425	–	catch(Exception e){
426	–	unexpectedException();
427	–	}
298		}
429	–
299
300		/**
301	<	* Interrupting a waiting get causes it to throw InterruptedException
301	>	* A runtime exception in task causes timed get to throw ExecutionException
302		*/
303	<	public void testGet_InterruptedException() {
304	<	final FutureTask ft = new FutureTask(new NoOpCallable());
305	<	Thread t = new Thread(new Runnable() {
306	<	public void run() {
307	<	try {
308	<	ft.get();
309	<	threadShouldThrow();
441	<	} catch(InterruptedException success){
442	<	} catch(Exception e){
443	<	threadUnexpectedException();
444	<	}
445	<	}
446	<	});
303	>	public void testTimedGet_ExecutionException2() throws Exception {
304	>	final FutureTask ft = new FutureTask(new Callable() {
305	>	public Object call() {
306	>	return 5/0;
307	>	}});
308	>
309	>	ft.run();
310		try {
311	<	t.start();
312	<	Thread.sleep(SHORT_DELAY_MS);
313	<	t.interrupt();
314	<	t.join();
452	<	} catch(Exception e){
453	<	unexpectedException();
311	>	ft.get(SHORT_DELAY_MS, MILLISECONDS);
312	>	shouldThrow();
313	>	} catch (ExecutionException success) {
314	>	assertTrue(success.getCause() instanceof ArithmeticException);
315		}
316		}
317
318	+
319		/**
320	<	*  Interrupting a waiting timed get causes it to throw InterruptedException
320	>	* Interrupting a waiting get causes it to throw InterruptedException
321		*/
322	<	public void testTimedGet_InterruptedException2() {
323	<	final FutureTask ft = new FutureTask(new NoOpCallable());
324	<	Thread t = new Thread(new Runnable() {
325	<	public void run() {
326	<	try {
327	<	ft.get(LONG_DELAY_MS,TimeUnit.MILLISECONDS);
328	<	threadShouldThrow();
329	<	} catch(InterruptedException success){}
330	<	catch(Exception e){
331	<	threadUnexpectedException();
332	<	}
471	<	}
472	<	});
473	<	try {
474	<	t.start();
475	<	Thread.sleep(SHORT_DELAY_MS);
476	<	t.interrupt();
477	<	t.join();
478	<	} catch(Exception e){
479	<	unexpectedException();
480	<	}
322	>	public void testGet_InterruptedException() throws InterruptedException {
323	>	final FutureTask ft = new FutureTask(new NoOpCallable());
324	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
325	>	public void realRun() throws Exception {
326	>	ft.get();
327	>	}});
328	>
329	>	t.start();
330	>	Thread.sleep(SHORT_DELAY_MS);
331	>	t.interrupt();
332	>	t.join();
333		}
334	<
334	>
335	>	/**
336	>	* Interrupting a waiting timed get causes it to throw InterruptedException
337	>	*/
338	>	public void testTimedGet_InterruptedException2() throws InterruptedException {
339	>	final FutureTask ft = new FutureTask(new NoOpCallable());
340	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
341	>	public void realRun() throws Exception {
342	>	ft.get(LONG_DELAY_MS,MILLISECONDS);
343	>	}});
344	>
345	>	t.start();
346	>	Thread.sleep(SHORT_DELAY_MS);
347	>	t.interrupt();
348	>	t.join();
349	>	}
350	>
351		/**
352		* A timed out timed get throws TimeoutException
353		*/
354	<	public void testGet_TimeoutException() {
355	<	try {
354	>	public void testGet_TimeoutException() throws Exception {
355	>	try {
356		FutureTask ft = new FutureTask(new NoOpCallable());
357	<	ft.get(1,TimeUnit.MILLISECONDS);
358	<	shouldThrow();
359	<	} catch(TimeoutException success){}
492	<	catch(Exception success){
493	<	unexpectedException();
494	<	}
357	>	ft.get(1,MILLISECONDS);
358	>	shouldThrow();
359	>	} catch (TimeoutException success) {}
360		}
361	<
361	>
362		}

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