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

Comparing jsr166/src/test/tck/FutureTaskTest.java (file contents):
Revision 1.5 by dl, Sat Sep 20 18:20:07 2003 UTC vs.
Revision 1.14 by jsr166, Mon Nov 16 05:30:07 2009 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.*;
#	Line 12 | Line 13 | import java.util.*;
13		public class FutureTaskTest extends JSR166TestCase {
14
15		public static void main(String[] args) {
16	<	junit.textui.TestRunner.run (suite());
16	>	junit.textui.TestRunner.run (suite());
17		}
18		public static Test suite() {
19		return new TestSuite(FutureTaskTest.class);
#	Line 21 | Line 22 | public class FutureTaskTest extends JSR1
22		/**
23		* Subclass to expose protected methods
24		*/
25	<	static class MyFutureTask extends FutureTask {
26	<	public MyFutureTask(Callable r) { super(r); }
27	<	public boolean reset() { return super.reset(); }
27	<	public void setCancelled() { super.setCancelled(); }
28	<	public void setDone() { super.setDone(); }
25	>	static class PublicFutureTask extends FutureTask {
26	>	public PublicFutureTask(Callable r) { super(r); }
27	>	public boolean runAndReset() { return super.runAndReset(); }
28		public void set(Object x) { super.set(x); }
29		public void setException(Throwable t) { super.setException(t); }
30		}
31
32		/**
33	<	*
33	>	* Creating a future with a null callable throws NPE
34		*/
35		public void testConstructor() {
36		try {
37		FutureTask task = new FutureTask(null);
38		shouldThrow();
39		}
40	<	catch(NullPointerException success) {
40	>	catch (NullPointerException success) {
41		}
42		}
43
44		/**
45	<	*
45	>	* creating a future with null runnable fails
46		*/
47		public void testConstructor2() {
48		try {
49		FutureTask task = new FutureTask(null, Boolean.TRUE);
50		shouldThrow();
51		}
52	<	catch(NullPointerException success) {
52	>	catch (NullPointerException success) {
53		}
54		}
55
56		/**
57	<	*
57	>	* isDone is true when a task completes
58		*/
59		public void testIsDone() {
60		FutureTask task = new FutureTask( new NoOpCallable());
#	Line 65 | Line 64 | public class FutureTaskTest extends JSR1
64		}
65
66		/**
67	<	*
67	>	* runAndReset of a non-cancelled task succeeds
68		*/
69	<	public void testReset() {
70	<	MyFutureTask task = new MyFutureTask(new NoOpCallable());
71	<	task.run();
72	<	assertTrue(task.isDone());
74	<	assertTrue(task.reset());
69	>	public void testRunAndReset() {
70	>	PublicFutureTask task = new PublicFutureTask(new NoOpCallable());
71	>	assertTrue(task.runAndReset());
72	>	assertFalse(task.isDone());
73		}
74
75		/**
76	<	*
76	>	* runAndReset after cancellation fails
77		*/
78		public void testResetAfterCancel() {
79	<	MyFutureTask task = new MyFutureTask(new NoOpCallable());
79	>	PublicFutureTask task = new PublicFutureTask(new NoOpCallable());
80		assertTrue(task.cancel(false));
81	<	task.run();
81	>	assertFalse(task.runAndReset());
82		assertTrue(task.isDone());
83		assertTrue(task.isCancelled());
86	–	assertFalse(task.reset());
84		}
85
89	–	/**
90	–	*
91	–	*/
92	–	public void testSetDone() {
93	–	MyFutureTask task = new MyFutureTask(new NoOpCallable());
94	–	task.setDone();
95	–	assertTrue(task.isDone());
96	–	assertFalse(task.isCancelled());
97	–	}
86
99	–	/**
100	–	*
101	–	*/
102	–	public void testSetCancelled() {
103	–	MyFutureTask task = new MyFutureTask(new NoOpCallable());
104	–	assertTrue(task.cancel(false));
105	–	task.setCancelled();
106	–	assertTrue(task.isDone());
107	–	assertTrue(task.isCancelled());
108	–	}
87
88		/**
89	<	*
89	>	* setting value causes get to return it
90		*/
91		public void testSet() {
92	<	MyFutureTask task = new MyFutureTask(new NoOpCallable());
92	>	PublicFutureTask task = new PublicFutureTask(new NoOpCallable());
93		task.set(one);
94		try {
95		assertEquals(task.get(), one);
96		}
97	<	catch(Exception e) {
97	>	catch (Exception e) {
98		unexpectedException();
99		}
100		}
101
102		/**
103	<	*
103	>	* setException causes get to throw ExecutionException
104		*/
105		public void testSetException() {
106		Exception nse = new NoSuchElementException();
107	<	MyFutureTask task = new MyFutureTask(new NoOpCallable());
107	>	PublicFutureTask task = new PublicFutureTask(new NoOpCallable());
108		task.setException(nse);
109		try {
110		Object x = task.get();
111		shouldThrow();
112		}
113	<	catch(ExecutionException ee) {
113	>	catch (ExecutionException ee) {
114		Throwable cause = ee.getCause();
115		assertEquals(cause, nse);
116		}
117	<	catch(Exception e) {
117	>	catch (Exception e) {
118		unexpectedException();
119		}
120		}
121
122		/**
123	<	*
123	>	*  Cancelling before running succeeds
124		*/
125		public void testCancelBeforeRun() {
126		FutureTask task = new FutureTask( new NoOpCallable());
#	Line 153 | Line 131 | public class FutureTaskTest extends JSR1
131		}
132
133		/**
134	<	*
134	>	* Cancel(true) before run succeeds
135		*/
136		public void testCancelBeforeRun2() {
137		FutureTask task = new FutureTask( new NoOpCallable());
#	Line 164 | Line 142 | public class FutureTaskTest extends JSR1
142		}
143
144		/**
145	<	*
145	>	* cancel of a completed task fails
146		*/
147		public void testCancelAfterRun() {
148		FutureTask task = new FutureTask( new NoOpCallable());
#	Line 175 | Line 153 | public class FutureTaskTest extends JSR1
153		}
154
155		/**
156	<	*
156	>	* cancel(true) interrupts a running task
157		*/
158		public void testCancelInterrupt() {
159		FutureTask task = new FutureTask( new Callable() {
#	Line 189 | Line 167 | public class FutureTaskTest extends JSR1
167		} });
168		Thread t = new  Thread(task);
169		t.start();
170	<
170	>
171		try {
172		Thread.sleep(SHORT_DELAY_MS);
173		assertTrue(task.cancel(true));
174		t.join();
175		assertTrue(task.isDone());
176		assertTrue(task.isCancelled());
177	<	} catch(InterruptedException e){
177	>	} catch (InterruptedException e) {
178		unexpectedException();
179		}
180		}
181
182
183		/**
184	<	*
184	>	* cancel(false) does not interrupt a running task
185		*/
186		public void testCancelNoInterrupt() {
187		FutureTask task = new FutureTask( new Callable() {
#	Line 218 | Line 196 | public class FutureTaskTest extends JSR1
196		} });
197		Thread t = new  Thread(task);
198		t.start();
199	<
199	>
200		try {
201		Thread.sleep(SHORT_DELAY_MS);
202		assertTrue(task.cancel(false));
203		t.join();
204		assertTrue(task.isDone());
205		assertTrue(task.isCancelled());
206	<	} catch(InterruptedException e){
206	>	} catch (InterruptedException e) {
207		unexpectedException();
208		}
209		}
210
211		/**
212	<	*
212	>	* set in one thread causes get in another thread to retrieve value
213		*/
214		public void testGet1() {
215		final FutureTask ft = new FutureTask(new Callable() {
216		public Object call() {
217		try {
218		Thread.sleep(MEDIUM_DELAY_MS);
219	<	} catch(InterruptedException e){
219	>	} catch (InterruptedException e) {
220		threadUnexpectedException();
221		}
222		return Boolean.TRUE;
#	Line 248 | Line 226 | public class FutureTaskTest extends JSR1
226		public void run() {
227		try {
228		ft.get();
229	<	} catch(Exception e){
229	>	} catch (Exception e) {
230		threadUnexpectedException();
231		}
232		}
#	Line 262 | Line 240 | public class FutureTaskTest extends JSR1
240		t.join();
241		assertTrue(ft.isDone());
242		assertFalse(ft.isCancelled());
243	<	} catch(InterruptedException e){
243	>	} catch (InterruptedException e) {
244		unexpectedException();
245
246	<	}
246	>	}
247		}
248
249		/**
250	<	*
250	>	* set in one thread causes timed get in another thread to retrieve value
251		*/
252		public void testTimedGet1() {
253		final FutureTask ft = new FutureTask(new Callable() {
254		public Object call() {
255		try {
256		Thread.sleep(MEDIUM_DELAY_MS);
257	<	} catch(InterruptedException e){
257	>	} catch (InterruptedException e) {
258		threadUnexpectedException();
259		}
260		return Boolean.TRUE;
#	Line 286 | Line 264 | public class FutureTaskTest extends JSR1
264		public void run() {
265		try {
266		ft.get(SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
267	<	} catch(TimeoutException success) {
268	<	} catch(Exception e){
267	>	} catch (TimeoutException success) {
268	>	} catch (Exception e) {
269		threadUnexpectedException();
270		}
271		}
#	Line 300 | Line 278 | public class FutureTaskTest extends JSR1
278		t.join();
279		assertTrue(ft.isDone());
280		assertFalse(ft.isCancelled());
281	<	} catch(InterruptedException e){
281	>	} catch (InterruptedException e) {
282		unexpectedException();
305	–
306	–	}
307	–	}
283
284	+	}
285	+	}
286
287		/**
288	<	*
288	>	*  Cancelling a task causes timed get in another thread to throw CancellationException
289		*/
290	<	public void testGet_Cancellation() {
290	>	public void testTimedGet_Cancellation() {
291		final FutureTask ft = new FutureTask(new Callable() {
292		public Object call() {
293		try {
294	<	Thread.sleep(MEDIUM_DELAY_MS);
295	<	} catch(InterruptedException e){
296	<	threadUnexpectedException();
294	>	Thread.sleep(SMALL_DELAY_MS);
295	>	threadShouldThrow();
296	>	} catch (InterruptedException e) {
297		}
298	<	return Boolean.TRUE;
298	>	return Boolean.TRUE;
299		}
300		});
301		try {
302	<	Thread.sleep(SHORT_DELAY_MS);
326	<	Thread t = new Thread(new Runnable() {
302	>	Thread t1 = new Thread(new Runnable() {
303		public void run() {
304		try {
305	<	ft.get();
305	>	ft.get(MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
306		threadShouldThrow();
307	<	} catch(CancellationException success){
308	<	}
333	<	catch(Exception e){
307	>	} catch (CancellationException success) {}
308	>	catch (Exception e) {
309		threadUnexpectedException();
310	<	}
310	>	}
311		}
312		});
313	<	t.start();
313	>	Thread t2 = new Thread(ft);
314	>	t1.start();
315	>	t2.start();
316	>	Thread.sleep(SHORT_DELAY_MS);
317		ft.cancel(true);
318	<	t.join();
319	<	} catch(InterruptedException success){
318	>	t1.join();
319	>	t2.join();
320	>	} catch (InterruptedException ie) {
321		unexpectedException();
322		}
323		}
324	<
324	>
325		/**
326	<	*
326	>	* Cancelling a task causes get in another thread to throw CancellationException
327		*/
328	<	public void testGet_Cancellation2() {
328	>	public void testGet_Cancellation() {
329		final FutureTask ft = new FutureTask(new Callable() {
330		public Object call() {
331		try {
332	<	Thread.sleep(SHORT_DELAY_MS);
333	<	} catch(InterruptedException e) {
334	<	threadUnexpectedException();
332	>	Thread.sleep(MEDIUM_DELAY_MS);
333	>	threadShouldThrow();
334	>	} catch (InterruptedException e) {
335		}
336	<	return Boolean.TRUE;
336	>	return Boolean.TRUE;
337		}
338		});
339		try {
340	<	Thread.sleep(SHORT_DELAY_MS);
362	<	Thread t = new Thread(new Runnable() {
340	>	Thread t1 = new Thread(new Runnable() {
341		public void run() {
342		try {
343	<	ft.get(MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
343	>	ft.get();
344		threadShouldThrow();
345	<	} catch(CancellationException success) {}
346	<	catch(Exception e){
345	>	} catch (CancellationException success) {
346	>	}
347	>	catch (Exception e) {
348		threadUnexpectedException();
349	<	}
349	>	}
350		}
351		});
352	<	t.start();
353	<	Thread.sleep(SHORT_DELAY_MS);
352	>	Thread t2 = new Thread(ft);
353	>	t1.start();
354	>	t2.start();
355	>	Thread.sleep(SHORT_DELAY_MS);
356		ft.cancel(true);
357	<	Thread.sleep(SHORT_DELAY_MS);
358	<	t.join();
359	<	} catch(InterruptedException ie){
357	>	t1.join();
358	>	t2.join();
359	>	} catch (InterruptedException success) {
360		unexpectedException();
361		}
362		}
363
364	+
365		/**
366	<	*
366	>	* A runtime exception in task causes get to throw ExecutionException
367		*/
368		public void testGet_ExecutionException() {
369		final FutureTask ft = new FutureTask(new Callable() {
#	Line 394 | Line 376 | public class FutureTaskTest extends JSR1
376		ft.run();
377		ft.get();
378		shouldThrow();
379	<	} catch(ExecutionException success){
379	>	} catch (ExecutionException success) {
380		}
381	<	catch(Exception e){
381	>	catch (Exception e) {
382		unexpectedException();
383		}
384		}
385	<
385	>
386		/**
387	<	*
387	>	*  A runtime exception in task causes timed get to throw ExecutionException
388		*/
389		public void testTimedGet_ExecutionException2() {
390		final FutureTask ft = new FutureTask(new Callable() {
#	Line 415 | Line 397 | public class FutureTaskTest extends JSR1
397		ft.run();
398		ft.get(SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
399		shouldThrow();
400	<	} catch(ExecutionException success) {
401	<	} catch(TimeoutException success) { } // unlikely but OK
402	<	catch(Exception e){
400	>	} catch (ExecutionException success) {
401	>	} catch (TimeoutException success) { } // unlikely but OK
402	>	catch (Exception e) {
403		unexpectedException();
404		}
405		}
406	<
406	>
407
408		/**
409	<	*
409	>	* Interrupting a waiting get causes it to throw InterruptedException
410		*/
411		public void testGet_InterruptedException() {
412		final FutureTask ft = new FutureTask(new NoOpCallable());
413		Thread t = new Thread(new Runnable() {
414	<	public void run() {
414	>	public void run() {
415		try {
416		ft.get();
417		threadShouldThrow();
418	<	} catch(InterruptedException success){
419	<	} catch(Exception e){
418	>	} catch (InterruptedException success) {
419	>	} catch (Exception e) {
420		threadUnexpectedException();
421		}
422		}
#	Line 444 | Line 426 | public class FutureTaskTest extends JSR1
426		Thread.sleep(SHORT_DELAY_MS);
427		t.interrupt();
428		t.join();
429	<	} catch(Exception e){
429	>	} catch (Exception e) {
430		unexpectedException();
431		}
432		}
433
434		/**
435	<	*
435	>	*  Interrupting a waiting timed get causes it to throw InterruptedException
436		*/
437		public void testTimedGet_InterruptedException2() {
438		final FutureTask ft = new FutureTask(new NoOpCallable());
439		Thread t = new Thread(new Runnable() {
440	<	public void run() {
440	>	public void run() {
441		try {
442		ft.get(LONG_DELAY_MS,TimeUnit.MILLISECONDS);
443		threadShouldThrow();
444	<	} catch(InterruptedException success){}
445	<	catch(Exception e){
444	>	} catch (InterruptedException success) {}
445	>	catch (Exception e) {
446		threadUnexpectedException();
447		}
448		}
#	Line 470 | Line 452 | public class FutureTaskTest extends JSR1
452		Thread.sleep(SHORT_DELAY_MS);
453		t.interrupt();
454		t.join();
455	<	} catch(Exception e){
455	>	} catch (Exception e) {
456		unexpectedException();
457		}
458		}
459	<
459	>
460		/**
461	<	*
461	>	* A timed out timed get throws TimeoutException
462		*/
463		public void testGet_TimeoutException() {
464		try {
465		FutureTask ft = new FutureTask(new NoOpCallable());
466		ft.get(1,TimeUnit.MILLISECONDS);
467		shouldThrow();
468	<	} catch(TimeoutException success){}
469	<	catch(Exception success){
468	>	} catch (TimeoutException success) {}
469	>	catch (Exception success) {
470		unexpectedException();
471		}
472		}
473	<
473	>
474		}

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