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Comparing jsr166/src/test/tck/SynchronousQueueTest.java (file contents):
Revision 1.30 by jsr166, Thu Nov 18 22:59:15 2010 UTC vs.
Revision 1.38 by jsr166, Tue May 31 16:16:24 2011 UTC

#	Line 1 | Line 1
1		/*
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
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.*;
10	>	import java.util.Arrays;
11	>	import java.util.ArrayList;
12	>	import java.util.Collection;
13	>	import java.util.Iterator;
14	>	import java.util.NoSuchElementException;
15	>	import java.util.Queue;
16	>	import java.util.concurrent.BlockingQueue;
17	>	import java.util.concurrent.CountDownLatch;
18	>	import java.util.concurrent.Executors;
19	>	import java.util.concurrent.ExecutorService;
20	>	import java.util.concurrent.SynchronousQueue;
21		import static java.util.concurrent.TimeUnit.MILLISECONDS;
13	–	import java.io.*;
22
23		public class SynchronousQueueTest extends JSR166TestCase {
24
#	Line 39 | Line 47 | public class SynchronousQueueTest extend
47		/**
48		* Any SynchronousQueue is both empty and full
49		*/
50	<	public void testEmptyFull(SynchronousQueue q) {
50	>	public void testEmptyFull()      { testEmptyFull(false); }
51	>	public void testEmptyFull_fair() { testEmptyFull(true); }
52	>	public void testEmptyFull(boolean fair) {
53	>	final SynchronousQueue q = new SynchronousQueue(fair);
54		assertTrue(q.isEmpty());
55		assertEquals(0, q.size());
56		assertEquals(0, q.remainingCapacity());
#	Line 47 | Line 58 | public class SynchronousQueueTest extend
58		}
59
60		/**
50	–	* A non-fair SynchronousQueue is both empty and full
51	–	*/
52	–	public void testEmptyFull() {
53	–	testEmptyFull(new SynchronousQueue());
54	–	}
55	–
56	–	/**
57	–	* A fair SynchronousQueue is both empty and full
58	–	*/
59	–	public void testFairEmptyFull() {
60	–	testEmptyFull(new SynchronousQueue(true));
61	–	}
62	–
63	–	/**
64	–	* offer(null) throws NPE
65	–	*/
66	–	public void testOfferNull() {
67	–	try {
68	–	SynchronousQueue q = new SynchronousQueue();
69	–	q.offer(null);
70	–	shouldThrow();
71	–	} catch (NullPointerException success) {}
72	–	}
73	–
74	–	/**
75	–	* add(null) throws NPE
76	–	*/
77	–	public void testAddNull() {
78	–	try {
79	–	SynchronousQueue q = new SynchronousQueue();
80	–	q.add(null);
81	–	shouldThrow();
82	–	} catch (NullPointerException success) {}
83	–	}
84	–
85	–	/**
61		* offer fails if no active taker
62		*/
63	<	public void testOffer() {
64	<	SynchronousQueue q = new SynchronousQueue();
63	>	public void testOffer()      { testOffer(false); }
64	>	public void testOffer_fair() { testOffer(true); }
65	>	public void testOffer(boolean fair) {
66	>	SynchronousQueue q = new SynchronousQueue(fair);
67		assertFalse(q.offer(one));
68		}
69
70		/**
71	<	* add throws ISE if no active taker
71	>	* add throws IllegalStateException if no active taker
72		*/
73	<	public void testAdd() {
73	>	public void testAdd()      { testAdd(false); }
74	>	public void testAdd_fair() { testAdd(true); }
75	>	public void testAdd(boolean fair) {
76	>	SynchronousQueue q = new SynchronousQueue(fair);
77	>	assertEquals(0, q.remainingCapacity());
78		try {
98	–	SynchronousQueue q = new SynchronousQueue();
99	–	assertEquals(0, q.remainingCapacity());
79		q.add(one);
80		shouldThrow();
81		} catch (IllegalStateException success) {}
82		}
83
84		/**
85	<	* addAll(null) throws NPE
107	<	*/
108	<	public void testAddAll1() {
109	<	try {
110	<	SynchronousQueue q = new SynchronousQueue();
111	<	q.addAll(null);
112	<	shouldThrow();
113	<	} catch (NullPointerException success) {}
114	<	}
115	<
116	<	/**
117	<	* addAll(this) throws IAE
85	>	* addAll(this) throws IllegalArgumentException
86		*/
87	<	public void testAddAllSelf() {
87	>	public void testAddAll_self()      { testAddAll_self(false); }
88	>	public void testAddAll_self_fair() { testAddAll_self(true); }
89	>	public void testAddAll_self(boolean fair) {
90	>	SynchronousQueue q = new SynchronousQueue(fair);
91		try {
121	–	SynchronousQueue q = new SynchronousQueue();
92		q.addAll(q);
93		shouldThrow();
94		} catch (IllegalArgumentException success) {}
95		}
96
97		/**
128	–	* addAll of a collection with null elements throws NPE
129	–	*/
130	–	public void testAddAll2() {
131	–	try {
132	–	SynchronousQueue q = new SynchronousQueue();
133	–	Integer[] ints = new Integer[1];
134	–	q.addAll(Arrays.asList(ints));
135	–	shouldThrow();
136	–	} catch (NullPointerException success) {}
137	–	}
138	–
139	–	/**
98		* addAll throws ISE if no active taker
99		*/
100	<	public void testAddAll4() {
100	>	public void testAddAll_ISE()      { testAddAll_ISE(false); }
101	>	public void testAddAll_ISE_fair() { testAddAll_ISE(true); }
102	>	public void testAddAll_ISE(boolean fair) {
103	>	SynchronousQueue q = new SynchronousQueue(fair);
104	>	Integer[] ints = new Integer[1];
105	>	for (int i = 0; i < ints.length; i++)
106	>	ints[i] = i;
107	>	Collection<Integer> coll = Arrays.asList(ints);
108		try {
109	<	SynchronousQueue q = new SynchronousQueue();
145	<	Integer[] ints = new Integer[1];
146	<	for (int i = 0; i < 1; ++i)
147	<	ints[i] = new Integer(i);
148	<	q.addAll(Arrays.asList(ints));
109	>	q.addAll(coll);
110		shouldThrow();
111		} catch (IllegalStateException success) {}
112		}
113
114		/**
154	–	* put(null) throws NPE
155	–	*/
156	–	public void testPutNull() throws InterruptedException {
157	–	try {
158	–	SynchronousQueue q = new SynchronousQueue();
159	–	q.put(null);
160	–	shouldThrow();
161	–	} catch (NullPointerException success) {}
162	–	}
163	–
164	–	/**
115		* put blocks interruptibly if no active taker
116		*/
117	<	public void testBlockingPut() throws InterruptedException {
118	<	Thread t = new Thread(new CheckedInterruptedRunnable() {
117	>	public void testBlockingPut()      { testBlockingPut(false); }
118	>	public void testBlockingPut_fair() { testBlockingPut(true); }
119	>	public void testBlockingPut(boolean fair) {
120	>	final SynchronousQueue q = new SynchronousQueue(fair);
121	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
122	>	Thread t = newStartedThread(new CheckedRunnable() {
123		public void realRun() throws InterruptedException {
124	<	SynchronousQueue q = new SynchronousQueue();
125	<	q.put(zero);
126	<	}});
127	<
128	<	t.start();
129	<	Thread.sleep(SHORT_DELAY_MS);
176	<	t.interrupt();
177	<	t.join();
178	<	}
124	>	Thread.currentThread().interrupt();
125	>	try {
126	>	q.put(99);
127	>	shouldThrow();
128	>	} catch (InterruptedException success) {}
129	>	assertFalse(Thread.interrupted());
130
131	<	/**
181	<	* put blocks waiting for take
182	<	*/
183	<	public void testPutWithTake() throws InterruptedException {
184	<	final SynchronousQueue q = new SynchronousQueue();
185	<	Thread t = new Thread(new CheckedRunnable() {
186	<	public void realRun() throws InterruptedException {
187	<	int added = 0;
131	>	pleaseInterrupt.countDown();
132		try {
133	<	while (true) {
134	<	q.put(added);
135	<	++added;
136	<	}
193	<	} catch (InterruptedException success) {
194	<	assertEquals(1, added);
195	<	}
133	>	q.put(99);
134	>	shouldThrow();
135	>	} catch (InterruptedException success) {}
136	>	assertFalse(Thread.interrupted());
137		}});
138
139	<	t.start();
140	<	Thread.sleep(SHORT_DELAY_MS);
200	<	assertEquals(0, q.take());
201	<	Thread.sleep(SHORT_DELAY_MS);
139	>	await(pleaseInterrupt);
140	>	assertThreadStaysAlive(t);
141		t.interrupt();
142	<	t.join();
142	>	awaitTermination(t);
143	>	assertEquals(0, q.remainingCapacity());
144		}
145
146		/**
147	<	* timed offer times out if elements not taken
147	>	* put blocks interruptibly waiting for take
148		*/
149	<	public void testTimedOffer(final SynchronousQueue q)
150	<	throws InterruptedException {
149	>	public void testPutWithTake()      { testPutWithTake(false); }
150	>	public void testPutWithTake_fair() { testPutWithTake(true); }
151	>	public void testPutWithTake(boolean fair) {
152	>	final SynchronousQueue q = new SynchronousQueue(fair);
153	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
154		final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
155		Thread t = newStartedThread(new CheckedRunnable() {
156		public void realRun() throws InterruptedException {
157	<	long t0 = System.nanoTime();
158	<	assertFalse(q.offer(new Object(), SHORT_DELAY_MS, MILLISECONDS));
159	<	assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS);
157	>	pleaseTake.countDown();
158	>	q.put(one);
159	>
160		pleaseInterrupt.countDown();
218	–	t0 = System.nanoTime();
161		try {
162	<	q.offer(new Object(), LONG_DELAY_MS, MILLISECONDS);
162	>	q.put(99);
163		shouldThrow();
164		} catch (InterruptedException success) {}
165	<	assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS);
165	>	assertFalse(Thread.interrupted());
166		}});
167
168	<	assertTrue(pleaseInterrupt.await(MEDIUM_DELAY_MS, MILLISECONDS));
169	<	t.interrupt();
170	<	awaitTermination(t, MEDIUM_DELAY_MS);
171	<	}
230	<
231	<	/**
232	<	* timed offer times out if elements not taken
233	<	*/
234	<	public void testTimedOffer() throws InterruptedException {
235	<	testTimedOffer(new SynchronousQueue());
236	<	}
237	<
238	<	/**
239	<	* timed offer times out if elements not taken
240	<	*/
241	<	public void testFairTimedOffer() throws InterruptedException {
242	<	testTimedOffer(new SynchronousQueue(true));
243	<	}
244	<
245	<	/**
246	<	* put blocks interruptibly if no active taker
247	<	*/
248	<	public void testFairBlockingPut() throws InterruptedException {
249	<	Thread t = new Thread(new CheckedInterruptedRunnable() {
250	<	public void realRun() throws InterruptedException {
251	<	SynchronousQueue q = new SynchronousQueue(true);
252	<	q.put(zero);
253	<	}});
168	>	await(pleaseTake);
169	>	assertEquals(q.remainingCapacity(), 0);
170	>	try { assertSame(one, q.take()); }
171	>	catch (InterruptedException e) { threadUnexpectedException(e); }
172
173	<	t.start();
174	<	Thread.sleep(SHORT_DELAY_MS);
173	>	await(pleaseInterrupt);
174	>	assertThreadStaysAlive(t);
175		t.interrupt();
176	<	t.join();
176	>	awaitTermination(t);
177	>	assertEquals(q.remainingCapacity(), 0);
178		}
179
180		/**
181	<	* put blocks waiting for take
181	>	* timed offer times out if elements not taken
182		*/
183	<	public void testFairPutWithTake() throws InterruptedException {
184	<	final SynchronousQueue q = new SynchronousQueue(true);
185	<	Thread t = new Thread(new CheckedRunnable() {
183	>	public void testTimedOffer()      { testTimedOffer(false); }
184	>	public void testTimedOffer_fair() { testTimedOffer(true); }
185	>	public void testTimedOffer(boolean fair) {
186	>	final SynchronousQueue q = new SynchronousQueue(fair);
187	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
188	>	Thread t = newStartedThread(new CheckedRunnable() {
189		public void realRun() throws InterruptedException {
190	<	int added = 0;
190	>	long startTime = System.nanoTime();
191	>	assertFalse(q.offer(new Object(), timeoutMillis(), MILLISECONDS));
192	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
193	>	pleaseInterrupt.countDown();
194		try {
195	<	while (true) {
196	<	q.put(added);
197	<	++added;
273	<	}
274	<	} catch (InterruptedException success) {
275	<	assertEquals(1, added);
276	<	}
277	<	}});
278	<
279	<	t.start();
280	<	Thread.sleep(SHORT_DELAY_MS);
281	<	assertEquals(0, q.take());
282	<	Thread.sleep(SHORT_DELAY_MS);
283	<	t.interrupt();
284	<	t.join();
285	<	}
286	<
287	<	/**
288	<	* take blocks interruptibly when empty
289	<	*/
290	<	public void testFairTakeFromEmpty() throws InterruptedException {
291	<	final SynchronousQueue q = new SynchronousQueue(true);
292	<	Thread t = new Thread(new CheckedInterruptedRunnable() {
293	<	public void realRun() throws InterruptedException {
294	<	q.take();
195	>	q.offer(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS);
196	>	shouldThrow();
197	>	} catch (InterruptedException success) {}
198		}});
199
200	<	t.start();
201	<	Thread.sleep(SHORT_DELAY_MS);
200	>	await(pleaseInterrupt);
201	>	assertThreadStaysAlive(t);
202		t.interrupt();
203	<	t.join();
203	>	awaitTermination(t);
204		}
205
206		/**
207		* poll return null if no active putter
208		*/
209	<	public void testPoll() {
210	<	SynchronousQueue q = new SynchronousQueue();
209	>	public void testPoll()      { testPoll(false); }
210	>	public void testPoll_fair() { testPoll(true); }
211	>	public void testPoll(boolean fair) {
212	>	final SynchronousQueue q = new SynchronousQueue(fair);
213		assertNull(q.poll());
214		}
215
216		/**
217		* timed poll with zero timeout times out if no active putter
218		*/
219	<	public void testTimedPoll0() throws InterruptedException {
220	<	SynchronousQueue q = new SynchronousQueue();
221	<	assertNull(q.poll(0, MILLISECONDS));
219	>	public void testTimedPoll0()      { testTimedPoll0(false); }
220	>	public void testTimedPoll0_fair() { testTimedPoll0(true); }
221	>	public void testTimedPoll0(boolean fair) {
222	>	final SynchronousQueue q = new SynchronousQueue(fair);
223	>	try { assertNull(q.poll(0, MILLISECONDS)); }
224	>	catch (InterruptedException e) { threadUnexpectedException(e); }
225		}
226
227		/**
228		* timed poll with nonzero timeout times out if no active putter
229		*/
230	<	public void testTimedPoll() throws InterruptedException {
231	<	SynchronousQueue q = new SynchronousQueue();
232	<	long t0 = System.nanoTime();
233	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
234	<	assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS);
235	<	}
236	<
237	<	/**
330	<	* Interrupted timed poll throws InterruptedException instead of
331	<	* returning timeout status
332	<	*/
333	<	public void testInterruptedTimedPoll(final SynchronousQueue q)
334	<	throws InterruptedException {
335	<	final CountDownLatch threadStarted = new CountDownLatch(1);
336	<	Thread t = newStartedThread(new CheckedRunnable() {
337	<	public void realRun() throws InterruptedException {
338	<	long t0 = System.nanoTime();
339	<	threadStarted.countDown();
340	<	try {
341	<	q.poll(LONG_DELAY_MS, MILLISECONDS);
342	<	shouldThrow();
343	<	} catch (InterruptedException success) {}
344	<	assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS);
345	<	assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS);
346	<	}});
347	<
348	<	threadStarted.await();
349	<	Thread.sleep(SHORT_DELAY_MS);
350	<	t.interrupt();
351	<	awaitTermination(t, MEDIUM_DELAY_MS);
352	<	}
353	<
354	<	/**
355	<	* Interrupted timed poll throws InterruptedException instead of
356	<	* returning timeout status
357	<	*/
358	<	public void testInterruptedTimedPoll() throws InterruptedException {
359	<	testInterruptedTimedPoll(new SynchronousQueue());
360	<	}
361	<
362	<	/**
363	<	* Interrupted timed poll throws InterruptedException instead of
364	<	* returning timeout status
365	<	*/
366	<	public void testFairInterruptedTimedPoll() throws InterruptedException {
367	<	testInterruptedTimedPoll(new SynchronousQueue(true));
230	>	public void testTimedPoll()      { testTimedPoll(false); }
231	>	public void testTimedPoll_fair() { testTimedPoll(true); }
232	>	public void testTimedPoll(boolean fair) {
233	>	final SynchronousQueue q = new SynchronousQueue(fair);
234	>	long startTime = System.nanoTime();
235	>	try { assertNull(q.poll(timeoutMillis(), MILLISECONDS)); }
236	>	catch (InterruptedException e) { threadUnexpectedException(e); }
237	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
238		}
239
240		/**
241		* timed poll before a delayed offer times out, returning null;
242		* after offer succeeds; on interruption throws
243		*/
244	<	public void testFairTimedPollWithOffer() throws InterruptedException {
245	<	final SynchronousQueue q = new SynchronousQueue(true);
244	>	public void testTimedPollWithOffer()      { testTimedPollWithOffer(false); }
245	>	public void testTimedPollWithOffer_fair() { testTimedPollWithOffer(true); }
246	>	public void testTimedPollWithOffer(boolean fair) {
247	>	final SynchronousQueue q = new SynchronousQueue(fair);
248		final CountDownLatch pleaseOffer = new CountDownLatch(1);
249	+	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
250		Thread t = newStartedThread(new CheckedRunnable() {
251		public void realRun() throws InterruptedException {
252	<	long t0 = System.nanoTime();
253	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
254	<	assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS);
252	>	long startTime = System.nanoTime();
253	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
254	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
255
256		pleaseOffer.countDown();
257	<	t0 = System.nanoTime();
257	>	startTime = System.nanoTime();
258		assertSame(zero, q.poll(LONG_DELAY_MS, MILLISECONDS));
259	<	assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS);
259	>	assertTrue(millisElapsedSince(startTime) < MEDIUM_DELAY_MS);
260
261	<	t0 = System.nanoTime();
261	>	Thread.currentThread().interrupt();
262		try {
263		q.poll(LONG_DELAY_MS, MILLISECONDS);
264		shouldThrow();
265		} catch (InterruptedException success) {}
266	<	assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS);
266	>	assertFalse(Thread.interrupted());
267	>
268	>	pleaseInterrupt.countDown();
269	>	try {
270	>	q.poll(LONG_DELAY_MS, MILLISECONDS);
271	>	shouldThrow();
272	>	} catch (InterruptedException success) {}
273	>	assertFalse(Thread.interrupted());
274		}});
275
276	<	assertTrue(pleaseOffer.await(MEDIUM_DELAY_MS, MILLISECONDS));
277	<	long t0 = System.nanoTime();
278	<	assertTrue(q.offer(zero, LONG_DELAY_MS, MILLISECONDS));
279	<	assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS);
276	>	await(pleaseOffer);
277	>	long startTime = System.nanoTime();
278	>	try { assertTrue(q.offer(zero, LONG_DELAY_MS, MILLISECONDS)); }
279	>	catch (InterruptedException e) { threadUnexpectedException(e); }
280	>	assertTrue(millisElapsedSince(startTime) < MEDIUM_DELAY_MS);
281
282	+	await(pleaseInterrupt);
283	+	assertThreadStaysAlive(t);
284		t.interrupt();
285	<	awaitTermination(t, MEDIUM_DELAY_MS);
285	>	awaitTermination(t);
286		}
287
288		/**
289		* peek() returns null if no active putter
290		*/
291	<	public void testPeek() {
292	<	SynchronousQueue q = new SynchronousQueue();
291	>	public void testPeek()      { testPeek(false); }
292	>	public void testPeek_fair() { testPeek(true); }
293	>	public void testPeek(boolean fair) {
294	>	final SynchronousQueue q = new SynchronousQueue(fair);
295		assertNull(q.peek());
296		}
297
298		/**
299	<	* element() throws NSEE if no active putter
299	>	* element() throws NoSuchElementException if no active putter
300		*/
301	<	public void testElement() {
302	<	SynchronousQueue q = new SynchronousQueue();
301	>	public void testElement()      { testElement(false); }
302	>	public void testElement_fair() { testElement(true); }
303	>	public void testElement(boolean fair) {
304	>	final SynchronousQueue q = new SynchronousQueue(fair);
305		try {
306		q.element();
307		shouldThrow();
#	Line 422 | Line 309 | public class SynchronousQueueTest extend
309		}
310
311		/**
312	<	* remove() throws NSEE if no active putter
312	>	* remove() throws NoSuchElementException if no active putter
313		*/
314	<	public void testRemove() {
315	<	SynchronousQueue q = new SynchronousQueue();
314	>	public void testRemove()      { testRemove(false); }
315	>	public void testRemove_fair() { testRemove(true); }
316	>	public void testRemove(boolean fair) {
317	>	final SynchronousQueue q = new SynchronousQueue(fair);
318		try {
319		q.remove();
320		shouldThrow();
#	Line 435 | Line 324 | public class SynchronousQueueTest extend
324		/**
325		* remove(x) returns false
326		*/
327	<	public void testRemoveElement() {
328	<	SynchronousQueue q = new SynchronousQueue();
327	>	public void testRemoveElement()      { testRemoveElement(false); }
328	>	public void testRemoveElement_fair() { testRemoveElement(true); }
329	>	public void testRemoveElement(boolean fair) {
330	>	final SynchronousQueue q = new SynchronousQueue(fair);
331		assertFalse(q.remove(zero));
332		assertTrue(q.isEmpty());
333		}
#	Line 444 | Line 335 | public class SynchronousQueueTest extend
335		/**
336		* contains returns false
337		*/
338	<	public void testContains() {
339	<	SynchronousQueue q = new SynchronousQueue();
338	>	public void testContains()      { testContains(false); }
339	>	public void testContains_fair() { testContains(true); }
340	>	public void testContains(boolean fair) {
341	>	final SynchronousQueue q = new SynchronousQueue(fair);
342		assertFalse(q.contains(zero));
343		}
344
345		/**
346		* clear ensures isEmpty
347		*/
348	<	public void testClear() {
349	<	SynchronousQueue q = new SynchronousQueue();
348	>	public void testClear()      { testClear(false); }
349	>	public void testClear_fair() { testClear(true); }
350	>	public void testClear(boolean fair) {
351	>	final SynchronousQueue q = new SynchronousQueue(fair);
352		q.clear();
353		assertTrue(q.isEmpty());
354		}
#	Line 461 | Line 356 | public class SynchronousQueueTest extend
356		/**
357		* containsAll returns false unless empty
358		*/
359	<	public void testContainsAll() {
360	<	SynchronousQueue q = new SynchronousQueue();
359	>	public void testContainsAll()      { testContainsAll(false); }
360	>	public void testContainsAll_fair() { testContainsAll(true); }
361	>	public void testContainsAll(boolean fair) {
362	>	final SynchronousQueue q = new SynchronousQueue(fair);
363		Integer[] empty = new Integer[0];
364		assertTrue(q.containsAll(Arrays.asList(empty)));
365		Integer[] ints = new Integer[1]; ints[0] = zero;
#	Line 472 | Line 369 | public class SynchronousQueueTest extend
369		/**
370		* retainAll returns false
371		*/
372	<	public void testRetainAll() {
373	<	SynchronousQueue q = new SynchronousQueue();
372	>	public void testRetainAll()      { testRetainAll(false); }
373	>	public void testRetainAll_fair() { testRetainAll(true); }
374	>	public void testRetainAll(boolean fair) {
375	>	final SynchronousQueue q = new SynchronousQueue(fair);
376		Integer[] empty = new Integer[0];
377		assertFalse(q.retainAll(Arrays.asList(empty)));
378		Integer[] ints = new Integer[1]; ints[0] = zero;
#	Line 483 | Line 382 | public class SynchronousQueueTest extend
382		/**
383		* removeAll returns false
384		*/
385	<	public void testRemoveAll() {
386	<	SynchronousQueue q = new SynchronousQueue();
385	>	public void testRemoveAll()      { testRemoveAll(false); }
386	>	public void testRemoveAll_fair() { testRemoveAll(true); }
387	>	public void testRemoveAll(boolean fair) {
388	>	final SynchronousQueue q = new SynchronousQueue(fair);
389		Integer[] empty = new Integer[0];
390		assertFalse(q.removeAll(Arrays.asList(empty)));
391		Integer[] ints = new Integer[1]; ints[0] = zero;
392		assertFalse(q.containsAll(Arrays.asList(ints)));
393		}
394
494	–
395		/**
396		* toArray is empty
397		*/
398	<	public void testToArray() {
399	<	SynchronousQueue q = new SynchronousQueue();
398	>	public void testToArray()      { testToArray(false); }
399	>	public void testToArray_fair() { testToArray(true); }
400	>	public void testToArray(boolean fair) {
401	>	final SynchronousQueue q = new SynchronousQueue(fair);
402		Object[] o = q.toArray();
403		assertEquals(o.length, 0);
404		}
#	Line 504 | Line 406 | public class SynchronousQueueTest extend
406		/**
407		* toArray(a) is nulled at position 0
408		*/
409	<	public void testToArray2() {
410	<	SynchronousQueue q = new SynchronousQueue();
409	>	public void testToArray2()      { testToArray2(false); }
410	>	public void testToArray2_fair() { testToArray2(true); }
411	>	public void testToArray2(boolean fair) {
412	>	final SynchronousQueue q = new SynchronousQueue(fair);
413		Integer[] ints = new Integer[1];
414		assertNull(ints[0]);
415		}
#	Line 513 | Line 417 | public class SynchronousQueueTest extend
417		/**
418		* toArray(null) throws NPE
419		*/
420	<	public void testToArray_BadArg() {
421	<	SynchronousQueue q = new SynchronousQueue();
420	>	public void testToArray_null()      { testToArray_null(false); }
421	>	public void testToArray_null_fair() { testToArray_null(true); }
422	>	public void testToArray_null(boolean fair) {
423	>	final SynchronousQueue q = new SynchronousQueue(fair);
424		try {
425		Object o[] = q.toArray(null);
426		shouldThrow();
427		} catch (NullPointerException success) {}
428		}
429
524	–
430		/**
431		* iterator does not traverse any elements
432		*/
433	<	public void testIterator() {
434	<	SynchronousQueue q = new SynchronousQueue();
433	>	public void testIterator()      { testIterator(false); }
434	>	public void testIterator_fair() { testIterator(true); }
435	>	public void testIterator(boolean fair) {
436	>	final SynchronousQueue q = new SynchronousQueue(fair);
437		Iterator it = q.iterator();
438		assertFalse(it.hasNext());
439		try {
#	Line 538 | Line 445 | public class SynchronousQueueTest extend
445		/**
446		* iterator remove throws ISE
447		*/
448	<	public void testIteratorRemove() {
449	<	SynchronousQueue q = new SynchronousQueue();
448	>	public void testIteratorRemove()      { testIteratorRemove(false); }
449	>	public void testIteratorRemove_fair() { testIteratorRemove(true); }
450	>	public void testIteratorRemove(boolean fair) {
451	>	final SynchronousQueue q = new SynchronousQueue(fair);
452		Iterator it = q.iterator();
453		try {
454		it.remove();
#	Line 550 | Line 459 | public class SynchronousQueueTest extend
459		/**
460		* toString returns a non-null string
461		*/
462	<	public void testToString() {
463	<	SynchronousQueue q = new SynchronousQueue();
462	>	public void testToString()      { testToString(false); }
463	>	public void testToString_fair() { testToString(true); }
464	>	public void testToString(boolean fair) {
465	>	final SynchronousQueue q = new SynchronousQueue(fair);
466		String s = q.toString();
467		assertNotNull(s);
468		}
469
559	–
470		/**
471		* offer transfers elements across Executor tasks
472		*/
473	<	public void testOfferInExecutor() {
474	<	final SynchronousQueue q = new SynchronousQueue();
473	>	public void testOfferInExecutor()      { testOfferInExecutor(false); }
474	>	public void testOfferInExecutor_fair() { testOfferInExecutor(true); }
475	>	public void testOfferInExecutor(boolean fair) {
476	>	final SynchronousQueue q = new SynchronousQueue(fair);
477		ExecutorService executor = Executors.newFixedThreadPool(2);
478	+	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
479
480		executor.execute(new CheckedRunnable() {
481		public void realRun() throws InterruptedException {
482		assertFalse(q.offer(one));
483	<	assertTrue(q.offer(one, MEDIUM_DELAY_MS, MILLISECONDS));
483	>	threadsStarted.await();
484	>	assertTrue(q.offer(one, LONG_DELAY_MS, MILLISECONDS));
485		assertEquals(0, q.remainingCapacity());
486		}});
487
488		executor.execute(new CheckedRunnable() {
489		public void realRun() throws InterruptedException {
490	<	Thread.sleep(SMALL_DELAY_MS);
490	>	threadsStarted.await();
491		assertSame(one, q.take());
492		}});
493
#	Line 581 | Line 495 | public class SynchronousQueueTest extend
495		}
496
497		/**
498	<	* poll retrieves elements across Executor threads
498	>	* timed poll retrieves elements across Executor threads
499		*/
500	<	public void testPollInExecutor() {
501	<	final SynchronousQueue q = new SynchronousQueue();
500	>	public void testPollInExecutor()      { testPollInExecutor(false); }
501	>	public void testPollInExecutor_fair() { testPollInExecutor(true); }
502	>	public void testPollInExecutor(boolean fair) {
503	>	final SynchronousQueue q = new SynchronousQueue(fair);
504	>	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
505		ExecutorService executor = Executors.newFixedThreadPool(2);
506		executor.execute(new CheckedRunnable() {
507		public void realRun() throws InterruptedException {
508		assertNull(q.poll());
509	<	assertSame(one, q.poll(MEDIUM_DELAY_MS, MILLISECONDS));
509	>	threadsStarted.await();
510	>	assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
511		assertTrue(q.isEmpty());
512		}});
513
514		executor.execute(new CheckedRunnable() {
515		public void realRun() throws InterruptedException {
516	<	Thread.sleep(SHORT_DELAY_MS);
516	>	threadsStarted.await();
517		q.put(one);
518		}});
519
#	Line 605 | Line 523 | public class SynchronousQueueTest extend
523		/**
524		* a deserialized serialized queue is usable
525		*/
526	<	public void testSerialization() throws Exception {
527	<	SynchronousQueue q = new SynchronousQueue();
528	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
529	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
530	<	out.writeObject(q);
531	<	out.close();
532	<
533	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
616	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
617	<	SynchronousQueue r = (SynchronousQueue)in.readObject();
618	<	assertEquals(q.size(), r.size());
619	<	while (!q.isEmpty())
620	<	assertEquals(q.remove(), r.remove());
621	<	}
622	<
623	<	/**
624	<	* drainTo(null) throws NPE
625	<	*/
626	<	public void testDrainToNull() {
627	<	SynchronousQueue q = new SynchronousQueue();
628	<	try {
629	<	q.drainTo(null);
630	<	shouldThrow();
631	<	} catch (NullPointerException success) {}
632	<	}
633	<
634	<	/**
635	<	* drainTo(this) throws IAE
636	<	*/
637	<	public void testDrainToSelf() {
638	<	SynchronousQueue q = new SynchronousQueue();
639	<	try {
640	<	q.drainTo(q);
641	<	shouldThrow();
642	<	} catch (IllegalArgumentException success) {}
526	>	public void testSerialization()      { testSerialization(false); }
527	>	public void testSerialization_fair() { testSerialization(true); }
528	>	public void testSerialization(boolean fair) {
529	>	final SynchronousQueue x = new SynchronousQueue(fair);
530	>	final SynchronousQueue y = serialClone(x);
531	>	assertTrue(x != y);
532	>	assertTrue(x.isEmpty());
533	>	assertTrue(y.isEmpty());
534		}
535
536		/**
537		* drainTo(c) of empty queue doesn't transfer elements
538		*/
539	<	public void testDrainTo() {
540	<	SynchronousQueue q = new SynchronousQueue();
539	>	public void testDrainTo()      { testDrainTo(false); }
540	>	public void testDrainTo_fair() { testDrainTo(true); }
541	>	public void testDrainTo(boolean fair) {
542	>	final SynchronousQueue q = new SynchronousQueue(fair);
543		ArrayList l = new ArrayList();
544		q.drainTo(l);
545		assertEquals(q.size(), 0);
#	Line 656 | Line 549 | public class SynchronousQueueTest extend
549		/**
550		* drainTo empties queue, unblocking a waiting put.
551		*/
552	<	public void testDrainToWithActivePut() throws InterruptedException {
553	<	final SynchronousQueue q = new SynchronousQueue();
554	<	Thread t = new Thread(new CheckedRunnable() {
552	>	public void testDrainToWithActivePut()      { testDrainToWithActivePut(false); }
553	>	public void testDrainToWithActivePut_fair() { testDrainToWithActivePut(true); }
554	>	public void testDrainToWithActivePut(boolean fair) {
555	>	final SynchronousQueue q = new SynchronousQueue(fair);
556	>	Thread t = newStartedThread(new CheckedRunnable() {
557		public void realRun() throws InterruptedException {
558	<	q.put(new Integer(1));
558	>	q.put(one);
559		}});
560
666	–	t.start();
561		ArrayList l = new ArrayList();
562	<	Thread.sleep(SHORT_DELAY_MS);
563	<	q.drainTo(l);
564	<	assertTrue(l.size() <= 1);
565	<	if (l.size() > 0)
566	<	assertEquals(l.get(0), new Integer(1));
567	<	t.join();
568	<	assertTrue(l.size() <= 1);
569	<	}
570	<
571	<	/**
678	<	* drainTo(null, n) throws NPE
679	<	*/
680	<	public void testDrainToNullN() {
681	<	SynchronousQueue q = new SynchronousQueue();
682	<	try {
683	<	q.drainTo(null, 0);
684	<	shouldThrow();
685	<	} catch (NullPointerException success) {}
686	<	}
687	<
688	<	/**
689	<	* drainTo(this, n) throws IAE
690	<	*/
691	<	public void testDrainToSelfN() {
692	<	SynchronousQueue q = new SynchronousQueue();
693	<	try {
694	<	q.drainTo(q, 0);
695	<	shouldThrow();
696	<	} catch (IllegalArgumentException success) {}
562	>	long startTime = System.nanoTime();
563	>	while (l.isEmpty()) {
564	>	q.drainTo(l);
565	>	if (millisElapsedSince(startTime) > LONG_DELAY_MS)
566	>	fail("timed out");
567	>	Thread.yield();
568	>	}
569	>	assertTrue(l.size() == 1);
570	>	assertSame(one, l.get(0));
571	>	awaitTermination(t);
572		}
573
574		/**
#	Line 701 | Line 576 | public class SynchronousQueueTest extend
576		*/
577		public void testDrainToN() throws InterruptedException {
578		final SynchronousQueue q = new SynchronousQueue();
579	<	Thread t1 = new Thread(new CheckedRunnable() {
579	>	Thread t1 = newStartedThread(new CheckedRunnable() {
580		public void realRun() throws InterruptedException {
581		q.put(one);
582		}});
583
584	<	Thread t2 = new Thread(new CheckedRunnable() {
584	>	Thread t2 = newStartedThread(new CheckedRunnable() {
585		public void realRun() throws InterruptedException {
586		q.put(two);
587		}});
588
714	–	t1.start();
715	–	t2.start();
589		ArrayList l = new ArrayList();
590	<	Thread.sleep(SHORT_DELAY_MS);
590	>	delay(SHORT_DELAY_MS);
591		q.drainTo(l, 1);
592		assertEquals(1, l.size());
593		q.drainTo(l, 1);
594		assertEquals(2, l.size());
595		assertTrue(l.contains(one));
596		assertTrue(l.contains(two));
597	<	t1.join();
598	<	t2.join();
597	>	awaitTermination(t1);
598	>	awaitTermination(t2);
599		}
600
601		}

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