ViewVC Help

View File | Revision Log | Show Annotations | Download File | Root Listing

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

Comparing jsr166/src/test/tck/ConcurrentLinkedQueueTest.java (file contents):
Revision 1.3 by dl, Sun Sep 14 20:42:40 2003 UTC vs.
Revision 1.13 by jsr166, Sat Nov 21 10:25:05 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 13 | Line 14 | import java.io.*;
14		public class ConcurrentLinkedQueueTest extends JSR166TestCase {
15
16		public static void main(String[] args) {
17	<	junit.textui.TestRunner.run (suite());
17	>	junit.textui.TestRunner.run (suite());
18		}
19
20		public static Test suite() {
21	<	return new TestSuite(ConcurrentLinkedQueueTest.class);
21	>	return new TestSuite(ConcurrentLinkedQueueTest.class);
22		}
23
24		/**
#	Line 27 | Line 28 | public class ConcurrentLinkedQueueTest e
28		private ConcurrentLinkedQueue populatedQueue(int n) {
29		ConcurrentLinkedQueue q = new ConcurrentLinkedQueue();
30		assertTrue(q.isEmpty());
31	<	for(int i = 0; i < n; ++i)
32	<	assertTrue(q.offer(new Integer(i)));
31	>	for (int i = 0; i < n; ++i)
32	>	assertTrue(q.offer(new Integer(i)));
33		assertFalse(q.isEmpty());
34	<	assertEquals(n, q.size());
34	>	assertEquals(n, q.size());
35		return q;
36		}
37	<
38	<	public void testConstructor1(){
37	>
38	>	/**
39	>	* new queue is empty
40	>	*/
41	>	public void testConstructor1() {
42		assertEquals(0, new ConcurrentLinkedQueue().size());
43		}
44
45	+	/**
46	+	*  Initializing from null Collection throws NPE
47	+	*/
48		public void testConstructor3() {
49		try {
50		ConcurrentLinkedQueue q = new ConcurrentLinkedQueue((Collection)null);
51	<	fail("Cannot make from null collection");
52	<	}
46	<	catch (NullPointerException success) {}
51	>	shouldThrow();
52	>	} catch (NullPointerException success) {}
53		}
54
55	<	public void testConstructor4(){
55	>	/**
56	>	* Initializing from Collection of null elements throws NPE
57	>	*/
58	>	public void testConstructor4() {
59		try {
60		Integer[] ints = new Integer[SIZE];
61		ConcurrentLinkedQueue q = new ConcurrentLinkedQueue(Arrays.asList(ints));
62	<	fail("Cannot make with null elements");
63	<	}
55	<	catch (NullPointerException success) {}
62	>	shouldThrow();
63	>	} catch (NullPointerException success) {}
64		}
65
66	<	public void testConstructor5(){
66	>	/**
67	>	* Initializing from Collection with some null elements throws NPE
68	>	*/
69	>	public void testConstructor5() {
70		try {
71		Integer[] ints = new Integer[SIZE];
72		for (int i = 0; i < SIZE-1; ++i)
73		ints[i] = new Integer(i);
74		ConcurrentLinkedQueue q = new ConcurrentLinkedQueue(Arrays.asList(ints));
75	<	fail("Cannot make with null elements");
75	>	shouldThrow();
76		}
77		catch (NullPointerException success) {}
78		}
79
80	<	public void testConstructor6(){
80	>	/**
81	>	* Queue contains all elements of collection used to initialize
82	>	*/
83	>	public void testConstructor6() {
84		try {
85		Integer[] ints = new Integer[SIZE];
86		for (int i = 0; i < SIZE; ++i)
#	Line 78 | Line 92 | public class ConcurrentLinkedQueueTest e
92		finally {}
93		}
94
95	+	/**
96	+	* isEmpty is true before add, false after
97	+	*/
98		public void testEmpty() {
99		ConcurrentLinkedQueue q = new ConcurrentLinkedQueue();
100		assertTrue(q.isEmpty());
#	Line 89 | Line 106 | public class ConcurrentLinkedQueueTest e
106		assertTrue(q.isEmpty());
107		}
108
109	+	/**
110	+	* size changes when elements added and removed
111	+	*/
112		public void testSize() {
113		ConcurrentLinkedQueue q = populatedQueue(SIZE);
114		for (int i = 0; i < SIZE; ++i) {
#	Line 101 | Line 121 | public class ConcurrentLinkedQueueTest e
121		}
122		}
123
124	<	public void testOfferNull(){
125	<	try {
124	>	/**
125	>	* offer(null) throws NPE
126	>	*/
127	>	public void testOfferNull() {
128	>	try {
129		ConcurrentLinkedQueue q = new ConcurrentLinkedQueue();
130		q.offer(null);
131	<	fail("should throw NPE");
132	<	} catch (NullPointerException success) { }
131	>	shouldThrow();
132	>	} catch (NullPointerException success) {}
133		}
134
135	+	/**
136	+	* add(null) throws NPE
137	+	*/
138	+	public void testAddNull() {
139	+	try {
140	+	ConcurrentLinkedQueue q = new ConcurrentLinkedQueue();
141	+	q.add(null);
142	+	shouldThrow();
143	+	} catch (NullPointerException success) {}
144	+	}
145	+
146	+
147	+	/**
148	+	* Offer returns true
149	+	*/
150		public void testOffer() {
151		ConcurrentLinkedQueue q = new ConcurrentLinkedQueue();
152		assertTrue(q.offer(zero));
153		assertTrue(q.offer(one));
154		}
155
156	<	public void testAdd(){
156	>	/**
157	>	* add returns true
158	>	*/
159	>	public void testAdd() {
160		ConcurrentLinkedQueue q = new ConcurrentLinkedQueue();
161		for (int i = 0; i < SIZE; ++i) {
162		assertEquals(i, q.size());
#	Line 123 | Line 164 | public class ConcurrentLinkedQueueTest e
164		}
165		}
166
167	<	public void testAddAll1(){
167	>	/**
168	>	* addAll(null) throws NPE
169	>	*/
170	>	public void testAddAll1() {
171		try {
172		ConcurrentLinkedQueue q = new ConcurrentLinkedQueue();
173		q.addAll(null);
174	<	fail("Cannot add null collection");
175	<	}
176	<	catch (NullPointerException success) {}
174	>	shouldThrow();
175	>	} catch (NullPointerException success) {}
176	>	}
177	>
178	>	/**
179	>	* addAll(this) throws IAE
180	>	*/
181	>	public void testAddAllSelf() {
182	>	try {
183	>	ConcurrentLinkedQueue q = populatedQueue(SIZE);
184	>	q.addAll(q);
185	>	shouldThrow();
186	>	} catch (IllegalArgumentException success) {}
187		}
188	<	public void testAddAll2(){
188	>
189	>	/**
190	>	* addAll of a collection with null elements throws NPE
191	>	*/
192	>	public void testAddAll2() {
193		try {
194		ConcurrentLinkedQueue q = new ConcurrentLinkedQueue();
195		Integer[] ints = new Integer[SIZE];
196		q.addAll(Arrays.asList(ints));
197	<	fail("Cannot add null elements");
198	<	}
141	<	catch (NullPointerException success) {}
197	>	shouldThrow();
198	>	} catch (NullPointerException success) {}
199		}
200	<	public void testAddAll3(){
200	>	/**
201	>	*  addAll of a collection with any null elements throws NPE after
202	>	* possibly adding some elements
203	>	*/
204	>	public void testAddAll3() {
205		try {
206		ConcurrentLinkedQueue q = new ConcurrentLinkedQueue();
207		Integer[] ints = new Integer[SIZE];
208		for (int i = 0; i < SIZE-1; ++i)
209		ints[i] = new Integer(i);
210		q.addAll(Arrays.asList(ints));
211	<	fail("Cannot add null elements");
212	<	}
152	<	catch (NullPointerException success) {}
211	>	shouldThrow();
212	>	} catch (NullPointerException success) {}
213		}
214
215	<	public void testAddAll5(){
215	>	/**
216	>	* Queue contains all elements, in traversal order, of successful addAll
217	>	*/
218	>	public void testAddAll5() {
219		try {
220		Integer[] empty = new Integer[0];
221		Integer[] ints = new Integer[SIZE];
#	Line 167 | Line 230 | public class ConcurrentLinkedQueueTest e
230		finally {}
231		}
232
233	<	public void testPoll(){
233	>	/**
234	>	* poll succeeds unless empty
235	>	*/
236	>	public void testPoll() {
237		ConcurrentLinkedQueue q = populatedQueue(SIZE);
238		for (int i = 0; i < SIZE; ++i) {
239		assertEquals(i, ((Integer)q.poll()).intValue());
240		}
241	<	assertNull(q.poll());
241	>	assertNull(q.poll());
242		}
243
244	<	public void testPeek(){
244	>	/**
245	>	* peek returns next element, or null if empty
246	>	*/
247	>	public void testPeek() {
248		ConcurrentLinkedQueue q = populatedQueue(SIZE);
249		for (int i = 0; i < SIZE; ++i) {
250		assertEquals(i, ((Integer)q.peek()).intValue());
#	Line 183 | Line 252 | public class ConcurrentLinkedQueueTest e
252		assertTrue(q.peek() == null ||
253		i != ((Integer)q.peek()).intValue());
254		}
255	<	assertNull(q.peek());
255	>	assertNull(q.peek());
256		}
257
258	<	public void testElement(){
258	>	/**
259	>	* element returns next element, or throws NSEE if empty
260	>	*/
261	>	public void testElement() {
262		ConcurrentLinkedQueue q = populatedQueue(SIZE);
263		for (int i = 0; i < SIZE; ++i) {
264		assertEquals(i, ((Integer)q.element()).intValue());
#	Line 194 | Line 266 | public class ConcurrentLinkedQueueTest e
266		}
267		try {
268		q.element();
269	<	fail("no such element");
270	<	}
199	<	catch (NoSuchElementException success) {}
269	>	shouldThrow();
270	>	} catch (NoSuchElementException success) {}
271		}
272
273	<	public void testRemove(){
273	>	/**
274	>	*  remove removes next element, or throws NSEE if empty
275	>	*/
276	>	public void testRemove() {
277		ConcurrentLinkedQueue q = populatedQueue(SIZE);
278		for (int i = 0; i < SIZE; ++i) {
279		assertEquals(i, ((Integer)q.remove()).intValue());
280		}
281		try {
282		q.remove();
283	<	fail("remove should throw");
284	<	} catch (NoSuchElementException success){
211	<	}
283	>	shouldThrow();
284	>	} catch (NoSuchElementException success) {}
285		}
286
287	<	public void testRemoveElement(){
287	>	/**
288	>	* remove(x) removes x and returns true if present
289	>	*/
290	>	public void testRemoveElement() {
291		ConcurrentLinkedQueue q = populatedQueue(SIZE);
292		for (int i = 1; i < SIZE; i+=2) {
293		assertTrue(q.remove(new Integer(i)));
#	Line 222 | Line 298 | public class ConcurrentLinkedQueueTest e
298		}
299		assertTrue(q.isEmpty());
300		}
301	<
302	<	public void testContains(){
301	>
302	>	/**
303	>	* contains(x) reports true when elements added but not yet removed
304	>	*/
305	>	public void testContains() {
306		ConcurrentLinkedQueue q = populatedQueue(SIZE);
307		for (int i = 0; i < SIZE; ++i) {
308		assertTrue(q.contains(new Integer(i)));
#	Line 232 | Line 311 | public class ConcurrentLinkedQueueTest e
311		}
312		}
313
314	<	public void testClear(){
314	>	/**
315	>	* clear removes all elements
316	>	*/
317	>	public void testClear() {
318		ConcurrentLinkedQueue q = populatedQueue(SIZE);
319		q.clear();
320		assertTrue(q.isEmpty());
#	Line 243 | Line 325 | public class ConcurrentLinkedQueueTest e
325		assertTrue(q.isEmpty());
326		}
327
328	<	public void testContainsAll(){
328	>	/**
329	>	* containsAll(c) is true when c contains a subset of elements
330	>	*/
331	>	public void testContainsAll() {
332		ConcurrentLinkedQueue q = populatedQueue(SIZE);
333		ConcurrentLinkedQueue p = new ConcurrentLinkedQueue();
334		for (int i = 0; i < SIZE; ++i) {
#	Line 254 | Line 339 | public class ConcurrentLinkedQueueTest e
339		assertTrue(p.containsAll(q));
340		}
341
342	<	public void testRetainAll(){
342	>	/**
343	>	* retainAll(c) retains only those elements of c and reports true if change
344	>	*/
345	>	public void testRetainAll() {
346		ConcurrentLinkedQueue q = populatedQueue(SIZE);
347		ConcurrentLinkedQueue p = populatedQueue(SIZE);
348		for (int i = 0; i < SIZE; ++i) {
#	Line 270 | Line 358 | public class ConcurrentLinkedQueueTest e
358		}
359		}
360
361	<	public void testRemoveAll(){
361	>	/**
362	>	* removeAll(c) removes only those elements of c and reports true if changed
363	>	*/
364	>	public void testRemoveAll() {
365		for (int i = 1; i < SIZE; ++i) {
366		ConcurrentLinkedQueue q = populatedQueue(SIZE);
367		ConcurrentLinkedQueue p = populatedQueue(i);
#	Line 283 | Line 374 | public class ConcurrentLinkedQueueTest e
374		}
375		}
376
377	<	public void testToArray(){
377	>	/**
378	>	* toArray contains all elements
379	>	*/
380	>	public void testToArray() {
381		ConcurrentLinkedQueue q = populatedQueue(SIZE);
382	<	Object[] o = q.toArray();
382	>	Object[] o = q.toArray();
383		Arrays.sort(o);
384	<	for(int i = 0; i < o.length; i++)
385	<	assertEquals(o[i], q.poll());
384	>	for (int i = 0; i < o.length; i++)
385	>	assertEquals(o[i], q.poll());
386		}
387
388	<	public void testToArray2(){
388	>	/**
389	>	*  toArray(a) contains all elements
390	>	*/
391	>	public void testToArray2() {
392		ConcurrentLinkedQueue q = populatedQueue(SIZE);
393	<	Integer[] ints = new Integer[SIZE];
394	<	ints = (Integer[])q.toArray(ints);
393	>	Integer[] ints = new Integer[SIZE];
394	>	ints = (Integer[])q.toArray(ints);
395		Arrays.sort(ints);
396	<	for(int i = 0; i < ints.length; i++)
396	>	for (int i = 0; i < ints.length; i++)
397		assertEquals(ints[i], q.poll());
398		}
399	<
400	<	public void testIterator(){
399	>
400	>	/**
401	>	* toArray(null) throws NPE
402	>	*/
403	>	public void testToArray_BadArg() {
404	>	try {
405	>	ConcurrentLinkedQueue q = populatedQueue(SIZE);
406	>	Object o[] = q.toArray(null);
407	>	shouldThrow();
408	>	} catch (NullPointerException success) {}
409	>	}
410	>
411	>	/**
412	>	* toArray with incompatible array type throws ArrayStoreException
413	>	*/
414	>	public void testToArray1_BadArg() {
415	>	try {
416	>	ConcurrentLinkedQueue q = populatedQueue(SIZE);
417	>	Object o[] = q.toArray(new String[10] );
418	>	shouldThrow();
419	>	} catch (ArrayStoreException success) {}
420	>	}
421	>
422	>	/**
423	>	*  iterator iterates through all elements
424	>	*/
425	>	public void testIterator() {
426		ConcurrentLinkedQueue q = populatedQueue(SIZE);
427		int i = 0;
428	<	Iterator it = q.iterator();
429	<	while(it.hasNext()) {
428	>	Iterator it = q.iterator();
429	>	while (it.hasNext()) {
430		assertTrue(q.contains(it.next()));
431		++i;
432		}
433		assertEquals(i, SIZE);
434		}
435
436	+	/**
437	+	* iterator ordering is FIFO
438	+	*/
439		public void testIteratorOrdering() {
440		final ConcurrentLinkedQueue q = new ConcurrentLinkedQueue();
441		q.add(one);
#	Line 320 | Line 445 | public class ConcurrentLinkedQueueTest e
445		int k = 0;
446		for (Iterator it = q.iterator(); it.hasNext();) {
447		int i = ((Integer)(it.next())).intValue();
448	<	assertEquals("items should come out in order", ++k, i);
448	>	assertEquals(++k, i);
449		}
450
451	<	assertEquals("should go through 3 elements", 3, k);
451	>	assertEquals(3, k);
452		}
453
454	+	/**
455	+	* Modifications do not cause iterators to fail
456	+	*/
457		public void testWeaklyConsistentIteration () {
458		final ConcurrentLinkedQueue q = new ConcurrentLinkedQueue();
459		q.add(one);
460		q.add(two);
461		q.add(three);
462
463	<	try {
464	<	for (Iterator it = q.iterator(); it.hasNext();) {
465	<	q.remove();
338	<	it.next();
339	<	}
340	<	}
341	<	catch (ConcurrentModificationException e) {
342	<	fail("weakly consistent iterator; should not get CME");
463	>	for (Iterator it = q.iterator(); it.hasNext();) {
464	>	q.remove();
465	>	it.next();
466		}
467
468		assertEquals("queue should be empty again", 0, q.size());
469		}
470
471	+	/**
472	+	* iterator.remove removes current element
473	+	*/
474		public void testIteratorRemove () {
475		final ConcurrentLinkedQueue q = new ConcurrentLinkedQueue();
476		q.add(one);
#	Line 360 | Line 486 | public class ConcurrentLinkedQueueTest e
486		}
487
488
489	<	public void testToString(){
489	>	/**
490	>	* toString contains toStrings of elements
491	>	*/
492	>	public void testToString() {
493		ConcurrentLinkedQueue q = populatedQueue(SIZE);
494		String s = q.toString();
495		for (int i = 0; i < SIZE; ++i) {
496		assertTrue(s.indexOf(String.valueOf(i)) >= 0);
497		}
498	<	}
498	>	}
499
500	<	public void testSerialization() {
500	>	/**
501	>	* A deserialized serialized queue has same elements in same order
502	>	*/
503	>	public void testSerialization() throws Exception {
504		ConcurrentLinkedQueue q = populatedQueue(SIZE);
505	<	try {
506	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
507	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
508	<	out.writeObject(q);
509	<	out.close();
510	<
511	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
512	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
513	<	ConcurrentLinkedQueue r = (ConcurrentLinkedQueue)in.readObject();
514	<	assertEquals(q.size(), r.size());
515	<	while (!q.isEmpty())
384	<	assertEquals(q.remove(), r.remove());
385	<	} catch(Exception e){
386	<	e.printStackTrace();
387	<	fail("unexpected exception");
388	<	}
505	>	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
506	>	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
507	>	out.writeObject(q);
508	>	out.close();
509	>
510	>	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
511	>	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
512	>	ConcurrentLinkedQueue r = (ConcurrentLinkedQueue)in.readObject();
513	>	assertEquals(q.size(), r.size());
514	>	while (!q.isEmpty())
515	>	assertEquals(q.remove(), r.remove());
516		}
517
518		}

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines