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

Comparing jsr166/src/test/tck/PriorityBlockingQueueTest.java (file contents):
Revision 1.4 by dl, Sat Sep 20 00:31:57 2003 UTC vs.
Revision 1.44 by jsr166, Fri May 27 20:07:24 2011 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
2	>	* Written by Doug Lea with assistance from members of JCP JSR-166
3	>	* Expert Group and released to the public domain, as explained at
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9		import junit.framework.*;
10		import java.util.*;
11		import java.util.concurrent.*;
12	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
13		import java.io.*;
14
15		public class PriorityBlockingQueueTest extends JSR166TestCase {
16	+
17	+	public static class Generic extends BlockingQueueTest {
18	+	protected BlockingQueue emptyCollection() {
19	+	return new PriorityBlockingQueue();
20	+	}
21	+	}
22	+
23	+	public static class InitialCapacity extends BlockingQueueTest {
24	+	protected BlockingQueue emptyCollection() {
25	+	return new PriorityBlockingQueue(20);
26	+	}
27	+	}
28	+
29		public static void main(String[] args) {
30	<	junit.textui.TestRunner.run (suite());
30	>	junit.textui.TestRunner.run(suite());
31		}
32
33		public static Test suite() {
34	<	return new TestSuite(PriorityBlockingQueueTest.class);
34	>	return newTestSuite(PriorityBlockingQueueTest.class,
35	>	new Generic().testSuite(),
36	>	new InitialCapacity().testSuite());
37		}
38
39		private static final int NOCAP = Integer.MAX_VALUE;
40
41		/** Sample Comparator */
42	<	static class MyReverseComparator implements Comparator {
42	>	static class MyReverseComparator implements Comparator {
43		public int compare(Object x, Object y) {
44	<	int i = ((Integer)x).intValue();
28	<	int j = ((Integer)y).intValue();
29	<	if (i < j) return 1;
30	<	if (i > j) return -1;
31	<	return 0;
44	>	return ((Comparable)y).compareTo(x);
45		}
46		}
47
35	–
48		/**
49		* Create a queue of given size containing consecutive
50		* Integers 0 ... n.
51		*/
52	<	private PriorityBlockingQueue populatedQueue(int n) {
53	<	PriorityBlockingQueue q = new PriorityBlockingQueue(n);
52	>	private PriorityBlockingQueue<Integer> populatedQueue(int n) {
53	>	PriorityBlockingQueue<Integer> q =
54	>	new PriorityBlockingQueue<Integer>(n);
55		assertTrue(q.isEmpty());
56	<	for(int i = n-1; i >= 0; i-=2)
57	<	assertTrue(q.offer(new Integer(i)));
58	<	for(int i = (n & 1); i < n; i+=2)
59	<	assertTrue(q.offer(new Integer(i)));
56	>	for (int i = n-1; i >= 0; i-=2)
57	>	assertTrue(q.offer(new Integer(i)));
58	>	for (int i = (n & 1); i < n; i+=2)
59	>	assertTrue(q.offer(new Integer(i)));
60		assertFalse(q.isEmpty());
61		assertEquals(NOCAP, q.remainingCapacity());
62	<	assertEquals(n, q.size());
62	>	assertEquals(n, q.size());
63		return q;
64		}
65	<
66	<	public void testConstructor1(){
65	>
66	>	/**
67	>	* A new queue has unbounded capacity
68	>	*/
69	>	public void testConstructor1() {
70		assertEquals(NOCAP, new PriorityBlockingQueue(SIZE).remainingCapacity());
71		}
72
73	<	public void testConstructor2(){
73	>	/**
74	>	* Constructor throws IAE if capacity argument nonpositive
75	>	*/
76	>	public void testConstructor2() {
77		try {
78		PriorityBlockingQueue q = new PriorityBlockingQueue(0);
79	<	fail("Cannot make zero-sized");
80	<	}
62	<	catch (IllegalArgumentException success) {}
79	>	shouldThrow();
80	>	} catch (IllegalArgumentException success) {}
81		}
82
83	<	public void testConstructor3(){
84	<
83	>	/**
84	>	* Initializing from null Collection throws NPE
85	>	*/
86	>	public void testConstructor3() {
87		try {
88		PriorityBlockingQueue q = new PriorityBlockingQueue(null);
89	<	fail("Cannot make from null collection");
90	<	}
71	<	catch (NullPointerException success) {}
89	>	shouldThrow();
90	>	} catch (NullPointerException success) {}
91		}
92
93	<	public void testConstructor4(){
93	>	/**
94	>	* Initializing from Collection of null elements throws NPE
95	>	*/
96	>	public void testConstructor4() {
97		try {
98		Integer[] ints = new Integer[SIZE];
99		PriorityBlockingQueue q = new PriorityBlockingQueue(Arrays.asList(ints));
100	<	fail("Cannot make with null elements");
101	<	}
80	<	catch (NullPointerException success) {}
100	>	shouldThrow();
101	>	} catch (NullPointerException success) {}
102		}
103
104	<	public void testConstructor5(){
104	>	/**
105	>	* Initializing from Collection with some null elements throws NPE
106	>	*/
107	>	public void testConstructor5() {
108		try {
109		Integer[] ints = new Integer[SIZE];
110		for (int i = 0; i < SIZE-1; ++i)
111		ints[i] = new Integer(i);
112		PriorityBlockingQueue q = new PriorityBlockingQueue(Arrays.asList(ints));
113	<	fail("Cannot make with null elements");
114	<	}
91	<	catch (NullPointerException success) {}
113	>	shouldThrow();
114	>	} catch (NullPointerException success) {}
115		}
116
117	<	public void testConstructor6(){
118	<	try {
119	<	Integer[] ints = new Integer[SIZE];
120	<	for (int i = 0; i < SIZE; ++i)
121	<	ints[i] = new Integer(i);
122	<	PriorityBlockingQueue q = new PriorityBlockingQueue(Arrays.asList(ints));
123	<	for (int i = 0; i < SIZE; ++i)
124	<	assertEquals(ints[i], q.poll());
125	<	}
126	<	finally {}
117	>	/**
118	>	* Queue contains all elements of collection used to initialize
119	>	*/
120	>	public void testConstructor6() {
121	>	Integer[] ints = new Integer[SIZE];
122	>	for (int i = 0; i < SIZE; ++i)
123	>	ints[i] = new Integer(i);
124	>	PriorityBlockingQueue q = new PriorityBlockingQueue(Arrays.asList(ints));
125	>	for (int i = 0; i < SIZE; ++i)
126	>	assertEquals(ints[i], q.poll());
127		}
128
129	<	public void testConstructor7(){
130	<	try {
131	<	MyReverseComparator cmp = new MyReverseComparator();
132	<	PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE, cmp);
133	<	assertEquals(cmp, q.comparator());
134	<	Integer[] ints = new Integer[SIZE];
135	<	for (int i = 0; i < SIZE; ++i)
136	<	ints[i] = new Integer(i);
137	<	q.addAll(Arrays.asList(ints));
138	<	for (int i = SIZE-1; i >= 0; --i)
139	<	assertEquals(ints[i], q.poll());
140	<	}
141	<	finally {}
129	>	/**
130	>	* The comparator used in constructor is used
131	>	*/
132	>	public void testConstructor7() {
133	>	MyReverseComparator cmp = new MyReverseComparator();
134	>	PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE, cmp);
135	>	assertEquals(cmp, q.comparator());
136	>	Integer[] ints = new Integer[SIZE];
137	>	for (int i = 0; i < SIZE; ++i)
138	>	ints[i] = new Integer(i);
139	>	q.addAll(Arrays.asList(ints));
140	>	for (int i = SIZE-1; i >= 0; --i)
141	>	assertEquals(ints[i], q.poll());
142		}
143
144	+	/**
145	+	* isEmpty is true before add, false after
146	+	*/
147		public void testEmpty() {
148		PriorityBlockingQueue q = new PriorityBlockingQueue(2);
149		assertTrue(q.isEmpty());
150		assertEquals(NOCAP, q.remainingCapacity());
151	<	q.add(new Integer(1));
151	>	q.add(one);
152		assertFalse(q.isEmpty());
153	<	q.add(new Integer(2));
153	>	q.add(two);
154		q.remove();
155		q.remove();
156		assertTrue(q.isEmpty());
157		}
158
159	<	public void testRemainingCapacity(){
159	>	/**
160	>	* remainingCapacity does not change when elements added or removed,
161	>	* but size does
162	>	*/
163	>	public void testRemainingCapacity() {
164		PriorityBlockingQueue q = populatedQueue(SIZE);
165		for (int i = 0; i < SIZE; ++i) {
166		assertEquals(NOCAP, q.remainingCapacity());
#	Line 144 | Line 174 | public class PriorityBlockingQueueTest e
174		}
175		}
176
177	<	public void testOfferNull(){
178	<	try {
177	>	/**
178	>	* offer(null) throws NPE
179	>	*/
180	>	public void testOfferNull() {
181	>	try {
182		PriorityBlockingQueue q = new PriorityBlockingQueue(1);
183		q.offer(null);
184	<	fail("should throw NPE");
185	<	} catch (NullPointerException success) { }
184	>	shouldThrow();
185	>	} catch (NullPointerException success) {}
186	>	}
187	>
188	>	/**
189	>	* add(null) throws NPE
190	>	*/
191	>	public void testAddNull() {
192	>	try {
193	>	PriorityBlockingQueue q = new PriorityBlockingQueue(1);
194	>	q.add(null);
195	>	shouldThrow();
196	>	} catch (NullPointerException success) {}
197		}
198
199	+	/**
200	+	* Offer of comparable element succeeds
201	+	*/
202		public void testOffer() {
203		PriorityBlockingQueue q = new PriorityBlockingQueue(1);
204	<	assertTrue(q.offer(new Integer(0)));
205	<	assertTrue(q.offer(new Integer(1)));
204	>	assertTrue(q.offer(zero));
205	>	assertTrue(q.offer(one));
206		}
207
208	+	/**
209	+	* Offer of non-Comparable throws CCE
210	+	*/
211		public void testOfferNonComparable() {
212		try {
213		PriorityBlockingQueue q = new PriorityBlockingQueue(1);
214		q.offer(new Object());
215		q.offer(new Object());
216		q.offer(new Object());
217	<	fail("should throw CCE");
218	<	}
169	<	catch(ClassCastException success) {}
217	>	shouldThrow();
218	>	} catch (ClassCastException success) {}
219		}
220
221	<	public void testAdd(){
221	>	/**
222	>	* add of comparable succeeds
223	>	*/
224	>	public void testAdd() {
225		PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE);
226		for (int i = 0; i < SIZE; ++i) {
227		assertEquals(i, q.size());
#	Line 177 | Line 229 | public class PriorityBlockingQueueTest e
229		}
230		}
231
232	<	public void testAddAll1(){
232	>	/**
233	>	* addAll(null) throws NPE
234	>	*/
235	>	public void testAddAll1() {
236		try {
237		PriorityBlockingQueue q = new PriorityBlockingQueue(1);
238		q.addAll(null);
239	<	fail("Cannot add null collection");
240	<	}
186	<	catch (NullPointerException success) {}
239	>	shouldThrow();
240	>	} catch (NullPointerException success) {}
241		}
242	<	public void testAddAll2(){
242	>
243	>	/**
244	>	* addAll(this) throws IAE
245	>	*/
246	>	public void testAddAllSelf() {
247	>	try {
248	>	PriorityBlockingQueue q = populatedQueue(SIZE);
249	>	q.addAll(q);
250	>	shouldThrow();
251	>	} catch (IllegalArgumentException success) {}
252	>	}
253	>
254	>	/**
255	>	* addAll of a collection with null elements throws NPE
256	>	*/
257	>	public void testAddAll2() {
258		try {
259		PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE);
260		Integer[] ints = new Integer[SIZE];
261		q.addAll(Arrays.asList(ints));
262	<	fail("Cannot add null elements");
263	<	}
195	<	catch (NullPointerException success) {}
262	>	shouldThrow();
263	>	} catch (NullPointerException success) {}
264		}
265	<	public void testAddAll3(){
265	>
266	>	/**
267	>	* addAll of a collection with any null elements throws NPE after
268	>	* possibly adding some elements
269	>	*/
270	>	public void testAddAll3() {
271		try {
272		PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE);
273		Integer[] ints = new Integer[SIZE];
274		for (int i = 0; i < SIZE-1; ++i)
275		ints[i] = new Integer(i);
276		q.addAll(Arrays.asList(ints));
277	<	fail("Cannot add null elements");
278	<	}
206	<	catch (NullPointerException success) {}
277	>	shouldThrow();
278	>	} catch (NullPointerException success) {}
279		}
280
281	<	public void testAddAll5(){
282	<	try {
283	<	Integer[] empty = new Integer[0];
284	<	Integer[] ints = new Integer[SIZE];
285	<	for (int i = SIZE-1; i >= 0; --i)
286	<	ints[i] = new Integer(i);
287	<	PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE);
288	<	assertFalse(q.addAll(Arrays.asList(empty)));
289	<	assertTrue(q.addAll(Arrays.asList(ints)));
290	<	for (int i = 0; i < SIZE; ++i)
291	<	assertEquals(ints[i], q.poll());
292	<	}
293	<	finally {}
281	>	/**
282	>	* Queue contains all elements of successful addAll
283	>	*/
284	>	public void testAddAll5() {
285	>	Integer[] empty = new Integer[0];
286	>	Integer[] ints = new Integer[SIZE];
287	>	for (int i = SIZE-1; i >= 0; --i)
288	>	ints[i] = new Integer(i);
289	>	PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE);
290	>	assertFalse(q.addAll(Arrays.asList(empty)));
291	>	assertTrue(q.addAll(Arrays.asList(ints)));
292	>	for (int i = 0; i < SIZE; ++i)
293	>	assertEquals(ints[i], q.poll());
294		}
295
296	<	public void testPutNull() {
297	<	try {
296	>	/**
297	>	* put(null) throws NPE
298	>	*/
299	>	public void testPutNull() {
300	>	try {
301		PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE);
302		q.put(null);
303	<	fail("put should throw NPE");
304	<	}
230	<	catch (NullPointerException success){
231	<	}
232	<	}
233	<
234	<	public void testPut() {
235	<	try {
236	<	PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE);
237	<	for (int i = 0; i < SIZE; ++i) {
238	<	Integer I = new Integer(i);
239	<	q.put(I);
240	<	assertTrue(q.contains(I));
241	<	}
242	<	assertEquals(SIZE, q.size());
243	<	}
244	<	finally {
245	<	}
303	>	shouldThrow();
304	>	} catch (NullPointerException success) {}
305		}
306
307	<	public void testPutWithTake() {
308	<	final PriorityBlockingQueue q = new PriorityBlockingQueue(2);
309	<	Thread t = new Thread(new Runnable() {
310	<	public void run(){
311	<	int added = 0;
312	<	try {
313	<	q.put(new Integer(0));
314	<	++added;
315	<	q.put(new Integer(0));
257	<	++added;
258	<	q.put(new Integer(0));
259	<	++added;
260	<	q.put(new Integer(0));
261	<	++added;
262	<	threadAssertTrue(added == 4);
263	<	} finally {
264	<	}
265	<	}
266	<	});
267	<	try {
268	<	t.start();
269	<	Thread.sleep(SHORT_DELAY_MS);
270	<	q.take();
271	<	t.interrupt();
272	<	t.join();
273	<	} catch (Exception e){
274	<	fail("Unexpected exception");
307	>	/**
308	>	* all elements successfully put are contained
309	>	*/
310	>	public void testPut() {
311	>	PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE);
312	>	for (int i = 0; i < SIZE; ++i) {
313	>	Integer I = new Integer(i);
314	>	q.put(I);
315	>	assertTrue(q.contains(I));
316		}
317	+	assertEquals(SIZE, q.size());
318		}
319
320	<	public void testTimedOffer() {
320	>	/**
321	>	* put doesn't block waiting for take
322	>	*/
323	>	public void testPutWithTake() throws InterruptedException {
324		final PriorityBlockingQueue q = new PriorityBlockingQueue(2);
325	<	Thread t = new Thread(new Runnable() {
326	<	public void run(){
327	<	try {
328	<	q.put(new Integer(0));
329	<	q.put(new Integer(0));
330	<	threadAssertTrue(q.offer(new Integer(0), SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
331	<	threadAssertTrue(q.offer(new Integer(0), LONG_DELAY_MS, TimeUnit.MILLISECONDS));
332	<	} finally { }
333	<	}
334	<	});
290	<
291	<	try {
292	<	t.start();
293	<	Thread.sleep(SMALL_DELAY_MS);
294	<	t.interrupt();
295	<	t.join();
296	<	} catch (Exception e){
297	<	fail("Unexpected exception");
298	<	}
299	<	}
300	<
301	<	public void testTake(){
302	<	try {
303	<	PriorityBlockingQueue q = populatedQueue(SIZE);
304	<	for (int i = 0; i < SIZE; ++i) {
305	<	assertEquals(i, ((Integer)q.take()).intValue());
306	<	}
307	<	} catch (InterruptedException e){
308	<	fail("Unexpected exception");
309	<	}
325	>	final int size = 4;
326	>	Thread t = newStartedThread(new CheckedRunnable() {
327	>	public void realRun() {
328	>	for (int i = 0; i < size; i++)
329	>	q.put(new Integer(0));
330	>	}});
331	>
332	>	awaitTermination(t);
333	>	assertEquals(size, q.size());
334	>	q.take();
335		}
336
337	<	public void testTakeFromEmpty() {
337	>	/**
338	>	* timed offer does not time out
339	>	*/
340	>	public void testTimedOffer() throws InterruptedException {
341		final PriorityBlockingQueue q = new PriorityBlockingQueue(2);
342	<	Thread t = new Thread(new Runnable() {
343	<	public void run(){
344	<	try {
345	<	q.take();
346	<	threadFail("Should block");
347	<	} catch (InterruptedException success){ }
348	<	}
349	<	});
350	<	try {
323	<	t.start();
324	<	Thread.sleep(SHORT_DELAY_MS);
325	<	t.interrupt();
326	<	t.join();
327	<	} catch (Exception e){
328	<	fail("Unexpected exception");
329	<	}
342	>	Thread t = newStartedThread(new CheckedRunnable() {
343	>	public void realRun() {
344	>	q.put(new Integer(0));
345	>	q.put(new Integer(0));
346	>	assertTrue(q.offer(new Integer(0), SHORT_DELAY_MS, MILLISECONDS));
347	>	assertTrue(q.offer(new Integer(0), LONG_DELAY_MS, MILLISECONDS));
348	>	}});
349	>
350	>	awaitTermination(t);
351		}
352
353	<	public void testBlockingTake(){
354	<	Thread t = new Thread(new Runnable() {
355	<	public void run() {
356	<	try {
357	<	PriorityBlockingQueue q = populatedQueue(SIZE);
358	<	for (int i = 0; i < SIZE; ++i) {
359	<	threadAssertEquals(i, ((Integer)q.take()).intValue());
339	<	}
340	<	q.take();
341	<	threadFail("take should block");
342	<	} catch (InterruptedException success){
343	<	}
344	<	}});
345	<	t.start();
346	<	try {
347	<	Thread.sleep(SHORT_DELAY_MS);
348	<	t.interrupt();
349	<	t.join();
350	<	}
351	<	catch (InterruptedException ie) {
352	<	fail("Unexpected exception");
353	>	/**
354	>	* take retrieves elements in priority order
355	>	*/
356	>	public void testTake() throws InterruptedException {
357	>	PriorityBlockingQueue q = populatedQueue(SIZE);
358	>	for (int i = 0; i < SIZE; ++i) {
359	>	assertEquals(i, q.take());
360		}
361		}
362
363	+	/**
364	+	* Take removes existing elements until empty, then blocks interruptibly
365	+	*/
366	+	public void testBlockingTake() throws InterruptedException {
367	+	final PriorityBlockingQueue q = populatedQueue(SIZE);
368	+	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
369	+	Thread t = newStartedThread(new CheckedRunnable() {
370	+	public void realRun() throws InterruptedException {
371	+	for (int i = 0; i < SIZE; ++i) {
372	+	assertEquals(i, q.take());
373	+	}
374	+
375	+	Thread.currentThread().interrupt();
376	+	try {
377	+	q.take();
378	+	shouldThrow();
379	+	} catch (InterruptedException success) {}
380	+	assertFalse(Thread.interrupted());
381	+
382	+	pleaseInterrupt.countDown();
383	+	try {
384	+	q.take();
385	+	shouldThrow();
386	+	} catch (InterruptedException success) {}
387	+	assertFalse(Thread.interrupted());
388	+	}});
389	+
390	+	await(pleaseInterrupt);
391	+	assertThreadStaysAlive(t);
392	+	t.interrupt();
393	+	awaitTermination(t);
394	+	}
395
396	<	public void testPoll(){
396	>	/**
397	>	* poll succeeds unless empty
398	>	*/
399	>	public void testPoll() {
400		PriorityBlockingQueue q = populatedQueue(SIZE);
401		for (int i = 0; i < SIZE; ++i) {
402	<	assertEquals(i, ((Integer)q.poll()).intValue());
402	>	assertEquals(i, q.poll());
403		}
404	<	assertNull(q.poll());
404	>	assertNull(q.poll());
405		}
406
407	<	public void testTimedPoll0() {
408	<	try {
409	<	PriorityBlockingQueue q = populatedQueue(SIZE);
410	<	for (int i = 0; i < SIZE; ++i) {
411	<	assertEquals(i, ((Integer)q.poll(0, TimeUnit.MILLISECONDS)).intValue());
412	<	}
413	<	assertNull(q.poll(0, TimeUnit.MILLISECONDS));
414	<	} catch (InterruptedException e){
415	<	fail("Unexpected exception");
374	<	}
407	>	/**
408	>	* timed poll with zero timeout succeeds when non-empty, else times out
409	>	*/
410	>	public void testTimedPoll0() throws InterruptedException {
411	>	PriorityBlockingQueue q = populatedQueue(SIZE);
412	>	for (int i = 0; i < SIZE; ++i) {
413	>	assertEquals(i, q.poll(0, MILLISECONDS));
414	>	}
415	>	assertNull(q.poll(0, MILLISECONDS));
416		}
417
418	<	public void testTimedPoll() {
419	<	try {
420	<	PriorityBlockingQueue q = populatedQueue(SIZE);
421	<	for (int i = 0; i < SIZE; ++i) {
422	<	assertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue());
423	<	}
424	<	assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
425	<	} catch (InterruptedException e){
426	<	fail("Unexpected exception");
427	<	}
428	<	}
429	<
430	<	public void testInterruptedTimedPoll(){
431	<	Thread t = new Thread(new Runnable() {
391	<	public void run() {
392	<	try {
393	<	PriorityBlockingQueue q = populatedQueue(SIZE);
394	<	for (int i = 0; i < SIZE; ++i) {
395	<	threadAssertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue());
396	<	}
397	<	threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
398	<	} catch (InterruptedException success){
399	<	}
400	<	}});
401	<	t.start();
402	<	try {
403	<	Thread.sleep(SHORT_DELAY_MS);
404	<	t.interrupt();
405	<	t.join();
406	<	}
407	<	catch (InterruptedException ie) {
408	<	fail("Unexpected exception");
409	<	}
418	>	/**
419	>	* timed poll with nonzero timeout succeeds when non-empty, else times out
420	>	*/
421	>	public void testTimedPoll() throws InterruptedException {
422	>	PriorityBlockingQueue<Integer> q = populatedQueue(SIZE);
423	>	for (int i = 0; i < SIZE; ++i) {
424	>	long startTime = System.nanoTime();
425	>	assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS));
426	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
427	>	}
428	>	long startTime = System.nanoTime();
429	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
430	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
431	>	checkEmpty(q);
432		}
433
434	<	public void testTimedPollWithOffer(){
435	<	final PriorityBlockingQueue q = new PriorityBlockingQueue(2);
436	<	Thread t = new Thread(new Runnable() {
437	<	public void run(){
438	<	try {
439	<	threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
440	<	q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
441	<	q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
442	<	threadFail("Should block");
443	<	} catch (InterruptedException success) { }
434	>	/**
435	>	* Interrupted timed poll throws InterruptedException instead of
436	>	* returning timeout status
437	>	*/
438	>	public void testInterruptedTimedPoll() throws InterruptedException {
439	>	final BlockingQueue<Integer> q = populatedQueue(SIZE);
440	>	final CountDownLatch aboutToWait = new CountDownLatch(1);
441	>	Thread t = newStartedThread(new CheckedRunnable() {
442	>	public void realRun() throws InterruptedException {
443	>	for (int i = 0; i < SIZE; ++i) {
444	>	long t0 = System.nanoTime();
445	>	assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS));
446	>	assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS);
447		}
448	<	});
449	<	try {
450	<	t.start();
451	<	Thread.sleep(SMALL_DELAY_MS);
452	<	assertTrue(q.offer(new Integer(0), SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
453	<	t.interrupt();
454	<	t.join();
455	<	} catch (Exception e){
456	<	fail("Unexpected exception");
432	<	}
433	<	}
448	>	long t0 = System.nanoTime();
449	>	aboutToWait.countDown();
450	>	try {
451	>	q.poll(LONG_DELAY_MS, MILLISECONDS);
452	>	shouldThrow();
453	>	} catch (InterruptedException success) {
454	>	assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS);
455	>	}
456	>	}});
457
458	+	aboutToWait.await();
459	+	waitForThreadToEnterWaitState(t, SMALL_DELAY_MS);
460	+	t.interrupt();
461	+	awaitTermination(t, MEDIUM_DELAY_MS);
462	+	}
463
464	<	public void testPeek(){
464	>	/**
465	>	* peek returns next element, or null if empty
466	>	*/
467	>	public void testPeek() {
468		PriorityBlockingQueue q = populatedQueue(SIZE);
469		for (int i = 0; i < SIZE; ++i) {
470	<	assertEquals(i, ((Integer)q.peek()).intValue());
471	<	q.poll();
470	>	assertEquals(i, q.peek());
471	>	assertEquals(i, q.poll());
472		assertTrue(q.peek() == null ||
473	<	i != ((Integer)q.peek()).intValue());
473	>	!q.peek().equals(i));
474		}
475	<	assertNull(q.peek());
475	>	assertNull(q.peek());
476		}
477
478	<	public void testElement(){
478	>	/**
479	>	* element returns next element, or throws NSEE if empty
480	>	*/
481	>	public void testElement() {
482		PriorityBlockingQueue q = populatedQueue(SIZE);
483		for (int i = 0; i < SIZE; ++i) {
484	<	assertEquals(i, ((Integer)q.element()).intValue());
485	<	q.poll();
484	>	assertEquals(i, q.element());
485	>	assertEquals(i, q.poll());
486		}
487		try {
488		q.element();
489	<	fail("no such element");
490	<	}
457	<	catch (NoSuchElementException success) {}
489	>	shouldThrow();
490	>	} catch (NoSuchElementException success) {}
491		}
492
493	<	public void testRemove(){
493	>	/**
494	>	* remove removes next element, or throws NSEE if empty
495	>	*/
496	>	public void testRemove() {
497		PriorityBlockingQueue q = populatedQueue(SIZE);
498		for (int i = 0; i < SIZE; ++i) {
499	<	assertEquals(i, ((Integer)q.remove()).intValue());
499	>	assertEquals(i, q.remove());
500		}
501		try {
502		q.remove();
503	<	fail("remove should throw");
504	<	} catch (NoSuchElementException success){
469	<	}
503	>	shouldThrow();
504	>	} catch (NoSuchElementException success) {}
505		}
506
507	<	public void testRemoveElement(){
507	>	/**
508	>	* remove(x) removes x and returns true if present
509	>	*/
510	>	public void testRemoveElement() {
511		PriorityBlockingQueue q = populatedQueue(SIZE);
512		for (int i = 1; i < SIZE; i+=2) {
513	<	assertTrue(q.remove(new Integer(i)));
513	>	assertTrue(q.contains(i));
514	>	assertTrue(q.remove(i));
515	>	assertFalse(q.contains(i));
516	>	assertTrue(q.contains(i-1));
517		}
518		for (int i = 0; i < SIZE; i+=2) {
519	<	assertTrue(q.remove(new Integer(i)));
520	<	assertFalse(q.remove(new Integer(i+1)));
519	>	assertTrue(q.contains(i));
520	>	assertTrue(q.remove(i));
521	>	assertFalse(q.contains(i));
522	>	assertFalse(q.remove(i+1));
523	>	assertFalse(q.contains(i+1));
524		}
525		assertTrue(q.isEmpty());
526		}
527	<
528	<	public void testContains(){
527	>
528	>	/**
529	>	* contains(x) reports true when elements added but not yet removed
530	>	*/
531	>	public void testContains() {
532		PriorityBlockingQueue q = populatedQueue(SIZE);
533		for (int i = 0; i < SIZE; ++i) {
534		assertTrue(q.contains(new Integer(i)));
#	Line 490 | Line 537 | public class PriorityBlockingQueueTest e
537		}
538		}
539
540	<	public void testClear(){
540	>	/**
541	>	* clear removes all elements
542	>	*/
543	>	public void testClear() {
544		PriorityBlockingQueue q = populatedQueue(SIZE);
545		q.clear();
546		assertTrue(q.isEmpty());
547		assertEquals(0, q.size());
548	<	assertEquals(NOCAP, q.remainingCapacity());
499	<	q.add(new Integer(1));
548	>	q.add(one);
549		assertFalse(q.isEmpty());
550	+	assertTrue(q.contains(one));
551		q.clear();
552		assertTrue(q.isEmpty());
553		}
554
555	<	public void testContainsAll(){
555	>	/**
556	>	* containsAll(c) is true when c contains a subset of elements
557	>	*/
558	>	public void testContainsAll() {
559		PriorityBlockingQueue q = populatedQueue(SIZE);
560		PriorityBlockingQueue p = new PriorityBlockingQueue(SIZE);
561		for (int i = 0; i < SIZE; ++i) {
#	Line 513 | Line 566 | public class PriorityBlockingQueueTest e
566		assertTrue(p.containsAll(q));
567		}
568
569	<	public void testRetainAll(){
569	>	/**
570	>	* retainAll(c) retains only those elements of c and reports true if changed
571	>	*/
572	>	public void testRetainAll() {
573		PriorityBlockingQueue q = populatedQueue(SIZE);
574		PriorityBlockingQueue p = populatedQueue(SIZE);
575		for (int i = 0; i < SIZE; ++i) {
#	Line 529 | Line 585 | public class PriorityBlockingQueueTest e
585		}
586		}
587
588	<	public void testRemoveAll(){
588	>	/**
589	>	* removeAll(c) removes only those elements of c and reports true if changed
590	>	*/
591	>	public void testRemoveAll() {
592		for (int i = 1; i < SIZE; ++i) {
593		PriorityBlockingQueue q = populatedQueue(SIZE);
594		PriorityBlockingQueue p = populatedQueue(i);
#	Line 542 | Line 601 | public class PriorityBlockingQueueTest e
601		}
602		}
603
604	<	public void testToArray(){
604	>	/**
605	>	* toArray contains all elements
606	>	*/
607	>	public void testToArray() throws InterruptedException {
608		PriorityBlockingQueue q = populatedQueue(SIZE);
609	<	Object[] o = q.toArray();
609	>	Object[] o = q.toArray();
610		Arrays.sort(o);
611	<	try {
612	<	for(int i = 0; i < o.length; i++)
551	<	assertEquals(o[i], q.take());
552	<	} catch (InterruptedException e){
553	<	fail("Unexpected exception");
554	<	}
611	>	for (int i = 0; i < o.length; i++)
612	>	assertSame(o[i], q.take());
613		}
614
615	<	public void testToArray2(){
616	<	PriorityBlockingQueue q = populatedQueue(SIZE);
617	<	Integer[] ints = new Integer[SIZE];
618	<	ints = (Integer[])q.toArray(ints);
615	>	/**
616	>	* toArray(a) contains all elements
617	>	*/
618	>	public void testToArray2() throws InterruptedException {
619	>	PriorityBlockingQueue<Integer> q = populatedQueue(SIZE);
620	>	Integer[] ints = new Integer[SIZE];
621	>	Integer[] array = q.toArray(ints);
622	>	assertSame(ints, array);
623		Arrays.sort(ints);
624	<	try {
625	<	for(int i = 0; i < ints.length; i++)
626	<	assertEquals(ints[i], q.take());
627	<	} catch (InterruptedException e){
628	<	fail("Unexpected exception");
629	<	}
624	>	for (int i = 0; i < ints.length; i++)
625	>	assertSame(ints[i], q.take());
626	>	}
627	>
628	>	/**
629	>	* toArray(null) throws NullPointerException
630	>	*/
631	>	public void testToArray_NullArg() {
632	>	PriorityBlockingQueue q = populatedQueue(SIZE);
633	>	try {
634	>	q.toArray(null);
635	>	shouldThrow();
636	>	} catch (NullPointerException success) {}
637		}
638	<
639	<	public void testIterator(){
638	>
639	>	/**
640	>	* toArray(incompatible array type) throws ArrayStoreException
641	>	*/
642	>	public void testToArray1_BadArg() {
643	>	PriorityBlockingQueue q = populatedQueue(SIZE);
644	>	try {
645	>	q.toArray(new String[10]);
646	>	shouldThrow();
647	>	} catch (ArrayStoreException success) {}
648	>	}
649	>
650	>	/**
651	>	* iterator iterates through all elements
652	>	*/
653	>	public void testIterator() {
654		PriorityBlockingQueue q = populatedQueue(SIZE);
655		int i = 0;
656	<	Iterator it = q.iterator();
657	<	while(it.hasNext()) {
656	>	Iterator it = q.iterator();
657	>	while (it.hasNext()) {
658		assertTrue(q.contains(it.next()));
659		++i;
660		}
661		assertEquals(i, SIZE);
662		}
663
664	<	public void testIteratorRemove () {
665	<
664	>	/**
665	>	* iterator.remove removes current element
666	>	*/
667	>	public void testIteratorRemove() {
668		final PriorityBlockingQueue q = new PriorityBlockingQueue(3);
584	–
669		q.add(new Integer(2));
670		q.add(new Integer(1));
671		q.add(new Integer(3));
#	Line 596 | Line 680 | public class PriorityBlockingQueueTest e
680		assertFalse(it.hasNext());
681		}
682
683	<
684	<	public void testToString(){
683	>	/**
684	>	* toString contains toStrings of elements
685	>	*/
686	>	public void testToString() {
687		PriorityBlockingQueue q = populatedQueue(SIZE);
688		String s = q.toString();
689		for (int i = 0; i < SIZE; ++i) {
690	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
690	>	assertTrue(s.contains(String.valueOf(i)));
691		}
692	<	}
692	>	}
693
694	+	/**
695	+	* timed poll transfers elements across Executor tasks
696	+	*/
697		public void testPollInExecutor() {
609	–
698		final PriorityBlockingQueue q = new PriorityBlockingQueue(2);
699	<
699	>	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
700		ExecutorService executor = Executors.newFixedThreadPool(2);
701	+	executor.execute(new CheckedRunnable() {
702	+	public void realRun() throws InterruptedException {
703	+	assertNull(q.poll());
704	+	threadsStarted.await();
705	+	assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
706	+	checkEmpty(q);
707	+	}});
708	+
709	+	executor.execute(new CheckedRunnable() {
710	+	public void realRun() throws InterruptedException {
711	+	threadsStarted.await();
712	+	q.put(one);
713	+	}});
714
614	–	executor.execute(new Runnable() {
615	–	public void run() {
616	–	threadAssertNull(q.poll());
617	–	try {
618	–	threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS));
619	–	threadAssertTrue(q.isEmpty());
620	–	}
621	–	catch (InterruptedException e) {
622	–	threadFail("should not be interrupted");
623	–	}
624	–	}
625	–	});
626	–
627	–	executor.execute(new Runnable() {
628	–	public void run() {
629	–	try {
630	–	Thread.sleep(SMALL_DELAY_MS);
631	–	q.put(new Integer(1));
632	–	}
633	–	catch (InterruptedException e) {
634	–	threadFail("should not be interrupted");
635	–	}
636	–	}
637	–	});
638	–
715		joinPool(executor);
716	+	}
717	+
718	+	/**
719	+	* A deserialized serialized queue has same elements
720	+	*/
721	+	public void testSerialization() throws Exception {
722	+	PriorityBlockingQueue q = populatedQueue(SIZE);
723	+	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
724	+	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
725	+	out.writeObject(q);
726	+	out.close();
727	+
728	+	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
729	+	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
730	+	PriorityBlockingQueue r = (PriorityBlockingQueue)in.readObject();
731	+	assertEquals(q.size(), r.size());
732	+	while (!q.isEmpty())
733	+	assertEquals(q.remove(), r.remove());
734	+	}
735	+
736	+	/**
737	+	* drainTo(null) throws NPE
738	+	*/
739	+	public void testDrainToNull() {
740	+	PriorityBlockingQueue q = populatedQueue(SIZE);
741	+	try {
742	+	q.drainTo(null);
743	+	shouldThrow();
744	+	} catch (NullPointerException success) {}
745	+	}
746	+
747	+	/**
748	+	* drainTo(this) throws IAE
749	+	*/
750	+	public void testDrainToSelf() {
751	+	PriorityBlockingQueue q = populatedQueue(SIZE);
752	+	try {
753	+	q.drainTo(q);
754	+	shouldThrow();
755	+	} catch (IllegalArgumentException success) {}
756	+	}
757	+
758	+	/**
759	+	* drainTo(c) empties queue into another collection c
760	+	*/
761	+	public void testDrainTo() {
762	+	PriorityBlockingQueue q = populatedQueue(SIZE);
763	+	ArrayList l = new ArrayList();
764	+	q.drainTo(l);
765	+	assertEquals(q.size(), 0);
766	+	assertEquals(l.size(), SIZE);
767	+	for (int i = 0; i < SIZE; ++i)
768	+	assertEquals(l.get(i), new Integer(i));
769	+	q.add(zero);
770	+	q.add(one);
771	+	assertFalse(q.isEmpty());
772	+	assertTrue(q.contains(zero));
773	+	assertTrue(q.contains(one));
774	+	l.clear();
775	+	q.drainTo(l);
776	+	assertEquals(q.size(), 0);
777	+	assertEquals(l.size(), 2);
778	+	for (int i = 0; i < 2; ++i)
779	+	assertEquals(l.get(i), new Integer(i));
780	+	}
781
782	+	/**
783	+	* drainTo empties queue
784	+	*/
785	+	public void testDrainToWithActivePut() throws InterruptedException {
786	+	final PriorityBlockingQueue q = populatedQueue(SIZE);
787	+	Thread t = new Thread(new CheckedRunnable() {
788	+	public void realRun() {
789	+	q.put(new Integer(SIZE+1));
790	+	}});
791	+
792	+	t.start();
793	+	ArrayList l = new ArrayList();
794	+	q.drainTo(l);
795	+	assertTrue(l.size() >= SIZE);
796	+	for (int i = 0; i < SIZE; ++i)
797	+	assertEquals(l.get(i), new Integer(i));
798	+	t.join();
799	+	assertTrue(q.size() + l.size() >= SIZE);
800	+	}
801	+
802	+	/**
803	+	* drainTo(null, n) throws NPE
804	+	*/
805	+	public void testDrainToNullN() {
806	+	PriorityBlockingQueue q = populatedQueue(SIZE);
807	+	try {
808	+	q.drainTo(null, 0);
809	+	shouldThrow();
810	+	} catch (NullPointerException success) {}
811		}
812
813	<	public void testSerialization() {
813	>	/**
814	>	* drainTo(this, n) throws IAE
815	>	*/
816	>	public void testDrainToSelfN() {
817		PriorityBlockingQueue q = populatedQueue(SIZE);
818		try {
819	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
820	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
821	<	out.writeObject(q);
822	<	out.close();
823	<
824	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
825	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
826	<	PriorityBlockingQueue r = (PriorityBlockingQueue)in.readObject();
827	<	assertEquals(q.size(), r.size());
828	<	while (!q.isEmpty())
829	<	assertEquals(q.remove(), r.remove());
830	<	} catch(Exception e){
831	<	fail("unexpected exception");
819	>	q.drainTo(q, 0);
820	>	shouldThrow();
821	>	} catch (IllegalArgumentException success) {}
822	>	}
823	>
824	>	/**
825	>	* drainTo(c, n) empties first min(n, size) elements of queue into c
826	>	*/
827	>	public void testDrainToN() {
828	>	PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE*2);
829	>	for (int i = 0; i < SIZE + 2; ++i) {
830	>	for (int j = 0; j < SIZE; j++)
831	>	assertTrue(q.offer(new Integer(j)));
832	>	ArrayList l = new ArrayList();
833	>	q.drainTo(l, i);
834	>	int k = (i < SIZE) ? i : SIZE;
835	>	assertEquals(l.size(), k);
836	>	assertEquals(q.size(), SIZE-k);
837	>	for (int j = 0; j < k; ++j)
838	>	assertEquals(l.get(j), new Integer(j));
839	>	while (q.poll() != null) ;
840		}
841		}
842

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