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Comparing jsr166/src/test/tck/AtomicLongArrayTest.java (file contents):
Revision 1.23 by jsr166, Fri Jun 10 20:01:21 2011 UTC vs.
Revision 1.34 by jsr166, Fri Jun 17 01:38:28 2016 UTC

#	Line 6 | Line 6
6		* Pat Fisher, Mike Judd.
7		*/
8
9	–	import junit.framework.*;
9		import java.util.Arrays;
10		import java.util.concurrent.atomic.AtomicLongArray;
11
12	+	import junit.framework.Test;
13	+	import junit.framework.TestSuite;
14	+
15		public class AtomicLongArrayTest extends JSR166TestCase {
16		public static void main(String[] args) {
17	<	junit.textui.TestRunner.run(suite());
17	>	main(suite(), args);
18		}
19		public static Test suite() {
20		return new TestSuite(AtomicLongArrayTest.class);
#	Line 22 | Line 24 | public class AtomicLongArrayTest extends
24		* constructor creates array of given size with all elements zero
25		*/
26		public void testConstructor() {
27	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
28	<	for (int i = 0; i < SIZE; ++i)
29	<	assertEquals(0, ai.get(i));
27	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
28	>	for (int i = 0; i < SIZE; i++)
29	>	assertEquals(0, aa.get(i));
30		}
31
32		/**
#	Line 33 | Line 35 | public class AtomicLongArrayTest extends
35		public void testConstructor2NPE() {
36		try {
37		long[] a = null;
38	<	AtomicLongArray ai = new AtomicLongArray(a);
38	>	new AtomicLongArray(a);
39		shouldThrow();
40		} catch (NullPointerException success) {}
41		}
#	Line 43 | Line 45 | public class AtomicLongArrayTest extends
45		*/
46		public void testConstructor2() {
47		long[] a = { 17L, 3L, -42L, 99L, -7L };
48	<	AtomicLongArray ai = new AtomicLongArray(a);
49	<	assertEquals(a.length, ai.length());
50	<	for (int i = 0; i < a.length; ++i)
51	<	assertEquals(a[i], ai.get(i));
48	>	AtomicLongArray aa = new AtomicLongArray(a);
49	>	assertEquals(a.length, aa.length());
50	>	for (int i = 0; i < a.length; i++)
51	>	assertEquals(a[i], aa.get(i));
52		}
53
54		/**
55		* get and set for out of bound indices throw IndexOutOfBoundsException
56		*/
57		public void testIndexing() {
58	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
59	<	try {
60	<	ai.get(SIZE);
61	<	shouldThrow();
62	<	} catch (IndexOutOfBoundsException success) {
63	<	}
64	<	try {
65	<	ai.get(-1);
66	<	shouldThrow();
67	<	} catch (IndexOutOfBoundsException success) {
68	<	}
69	<	try {
70	<	ai.set(SIZE, 0);
71	<	shouldThrow();
72	<	} catch (IndexOutOfBoundsException success) {
73	<	}
74	<	try {
75	<	ai.set(-1, 0);
76	<	shouldThrow();
77	<	} catch (IndexOutOfBoundsException success) {
58	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
59	>	for (int index : new int[] { -1, SIZE }) {
60	>	try {
61	>	aa.get(index);
62	>	shouldThrow();
63	>	} catch (IndexOutOfBoundsException success) {}
64	>	try {
65	>	aa.set(index, 1);
66	>	shouldThrow();
67	>	} catch (IndexOutOfBoundsException success) {}
68	>	try {
69	>	aa.lazySet(index, 1);
70	>	shouldThrow();
71	>	} catch (IndexOutOfBoundsException success) {}
72	>	try {
73	>	aa.compareAndSet(index, 1, 2);
74	>	shouldThrow();
75	>	} catch (IndexOutOfBoundsException success) {}
76	>	try {
77	>	aa.weakCompareAndSet(index, 1, 2);
78	>	shouldThrow();
79	>	} catch (IndexOutOfBoundsException success) {}
80	>	try {
81	>	aa.getAndAdd(index, 1);
82	>	shouldThrow();
83	>	} catch (IndexOutOfBoundsException success) {}
84	>	try {
85	>	aa.addAndGet(index, 1);
86	>	shouldThrow();
87	>	} catch (IndexOutOfBoundsException success) {}
88	>	try {
89	>	aa.getPlain(index);
90	>	shouldThrow();
91	>	} catch (IndexOutOfBoundsException success) {}
92	>	try {
93	>	aa.getOpaque(index);
94	>	shouldThrow();
95	>	} catch (IndexOutOfBoundsException success) {}
96	>	try {
97	>	aa.getAcquire(index);
98	>	shouldThrow();
99	>	} catch (IndexOutOfBoundsException success) {}
100	>	try {
101	>	aa.setPlain(index, 1);
102	>	shouldThrow();
103	>	} catch (IndexOutOfBoundsException success) {}
104	>	try {
105	>	aa.setOpaque(index, 1);
106	>	shouldThrow();
107	>	} catch (IndexOutOfBoundsException success) {}
108	>	try {
109	>	aa.setRelease(index, 1);
110	>	shouldThrow();
111	>	} catch (IndexOutOfBoundsException success) {}
112	>	try {
113	>	aa.compareAndExchange(index, 1, 2);
114	>	shouldThrow();
115	>	} catch (IndexOutOfBoundsException success) {}
116	>	try {
117	>	aa.compareAndExchangeAcquire(index, 1, 2);
118	>	shouldThrow();
119	>	} catch (IndexOutOfBoundsException success) {}
120	>	try {
121	>	aa.compareAndExchangeRelease(index, 1, 2);
122	>	shouldThrow();
123	>	} catch (IndexOutOfBoundsException success) {}
124	>	try {
125	>	aa.weakCompareAndSetVolatile(index, 1, 2);
126	>	shouldThrow();
127	>	} catch (IndexOutOfBoundsException success) {}
128	>	try {
129	>	aa.weakCompareAndSetAcquire(index, 1, 2);
130	>	shouldThrow();
131	>	} catch (IndexOutOfBoundsException success) {}
132	>	try {
133	>	aa.weakCompareAndSetRelease(index, 1, 2);
134	>	shouldThrow();
135	>	} catch (IndexOutOfBoundsException success) {}
136		}
137		}
138
#	Line 80 | Line 140 | public class AtomicLongArrayTest extends
140		* get returns the last value set at index
141		*/
142		public void testGetSet() {
143	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
144	<	for (int i = 0; i < SIZE; ++i) {
145	<	ai.set(i, 1);
146	<	assertEquals(1, ai.get(i));
147	<	ai.set(i, 2);
148	<	assertEquals(2, ai.get(i));
149	<	ai.set(i, -3);
150	<	assertEquals(-3, ai.get(i));
143	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
144	>	for (int i = 0; i < SIZE; i++) {
145	>	aa.set(i, 1);
146	>	assertEquals(1, aa.get(i));
147	>	aa.set(i, 2);
148	>	assertEquals(2, aa.get(i));
149	>	aa.set(i, -3);
150	>	assertEquals(-3, aa.get(i));
151		}
152		}
153
#	Line 95 | Line 155 | public class AtomicLongArrayTest extends
155		* get returns the last value lazySet at index by same thread
156		*/
157		public void testGetLazySet() {
158	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
159	<	for (int i = 0; i < SIZE; ++i) {
160	<	ai.lazySet(i, 1);
161	<	assertEquals(1, ai.get(i));
162	<	ai.lazySet(i, 2);
163	<	assertEquals(2, ai.get(i));
164	<	ai.lazySet(i, -3);
165	<	assertEquals(-3, ai.get(i));
158	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
159	>	for (int i = 0; i < SIZE; i++) {
160	>	aa.lazySet(i, 1);
161	>	assertEquals(1, aa.get(i));
162	>	aa.lazySet(i, 2);
163	>	assertEquals(2, aa.get(i));
164	>	aa.lazySet(i, -3);
165	>	assertEquals(-3, aa.get(i));
166		}
167		}
168
#	Line 110 | Line 170 | public class AtomicLongArrayTest extends
170		* compareAndSet succeeds in changing value if equal to expected else fails
171		*/
172		public void testCompareAndSet() {
173	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
174	<	for (int i = 0; i < SIZE; ++i) {
175	<	ai.set(i, 1);
176	<	assertTrue(ai.compareAndSet(i, 1, 2));
177	<	assertTrue(ai.compareAndSet(i, 2, -4));
178	<	assertEquals(-4, ai.get(i));
179	<	assertFalse(ai.compareAndSet(i, -5, 7));
180	<	assertEquals(-4, ai.get(i));
181	<	assertTrue(ai.compareAndSet(i, -4, 7));
182	<	assertEquals(7, ai.get(i));
173	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
174	>	for (int i = 0; i < SIZE; i++) {
175	>	aa.set(i, 1);
176	>	assertTrue(aa.compareAndSet(i, 1, 2));
177	>	assertTrue(aa.compareAndSet(i, 2, -4));
178	>	assertEquals(-4, aa.get(i));
179	>	assertFalse(aa.compareAndSet(i, -5, 7));
180	>	assertEquals(-4, aa.get(i));
181	>	assertTrue(aa.compareAndSet(i, -4, 7));
182	>	assertEquals(7, aa.get(i));
183		}
184		}
185
#	Line 140 | Line 200 | public class AtomicLongArrayTest extends
200		assertTrue(a.compareAndSet(0, 1, 2));
201		t.join(LONG_DELAY_MS);
202		assertFalse(t.isAlive());
203	<	assertEquals(a.get(0), 3);
203	>	assertEquals(3, a.get(0));
204		}
205
206		/**
#	Line 148 | Line 208 | public class AtomicLongArrayTest extends
208		* to expected
209		*/
210		public void testWeakCompareAndSet() {
211	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
212	<	for (int i = 0; i < SIZE; ++i) {
213	<	ai.set(i, 1);
214	<	while (!ai.weakCompareAndSet(i, 1, 2));
215	<	while (!ai.weakCompareAndSet(i, 2, -4));
216	<	assertEquals(-4, ai.get(i));
217	<	while (!ai.weakCompareAndSet(i, -4, 7));
218	<	assertEquals(7, ai.get(i));
211	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
212	>	for (int i = 0; i < SIZE; i++) {
213	>	aa.set(i, 1);
214	>	do {} while (!aa.weakCompareAndSet(i, 1, 2));
215	>	do {} while (!aa.weakCompareAndSet(i, 2, -4));
216	>	assertEquals(-4, aa.get(i));
217	>	do {} while (!aa.weakCompareAndSet(i, -4, 7));
218	>	assertEquals(7, aa.get(i));
219		}
220		}
221
#	Line 163 | Line 223 | public class AtomicLongArrayTest extends
223		* getAndSet returns previous value and sets to given value at given index
224		*/
225		public void testGetAndSet() {
226	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
227	<	for (int i = 0; i < SIZE; ++i) {
228	<	ai.set(i, 1);
229	<	assertEquals(1, ai.getAndSet(i, 0));
230	<	assertEquals(0, ai.getAndSet(i, -10));
231	<	assertEquals(-10, ai.getAndSet(i, 1));
226	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
227	>	for (int i = 0; i < SIZE; i++) {
228	>	aa.set(i, 1);
229	>	assertEquals(1, aa.getAndSet(i, 0));
230	>	assertEquals(0, aa.getAndSet(i, -10));
231	>	assertEquals(-10, aa.getAndSet(i, 1));
232		}
233		}
234
#	Line 176 | Line 236 | public class AtomicLongArrayTest extends
236		* getAndAdd returns previous value and adds given value
237		*/
238		public void testGetAndAdd() {
239	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
240	<	for (int i = 0; i < SIZE; ++i) {
241	<	ai.set(i, 1);
242	<	assertEquals(1, ai.getAndAdd(i, 2));
243	<	assertEquals(3, ai.get(i));
244	<	assertEquals(3, ai.getAndAdd(i, -4));
245	<	assertEquals(-1, ai.get(i));
239	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
240	>	for (int i = 0; i < SIZE; i++) {
241	>	aa.set(i, 1);
242	>	assertEquals(1, aa.getAndAdd(i, 2));
243	>	assertEquals(3, aa.get(i));
244	>	assertEquals(3, aa.getAndAdd(i, -4));
245	>	assertEquals(-1, aa.get(i));
246		}
247		}
248
#	Line 190 | Line 250 | public class AtomicLongArrayTest extends
250		* getAndDecrement returns previous value and decrements
251		*/
252		public void testGetAndDecrement() {
253	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
254	<	for (int i = 0; i < SIZE; ++i) {
255	<	ai.set(i, 1);
256	<	assertEquals(1, ai.getAndDecrement(i));
257	<	assertEquals(0, ai.getAndDecrement(i));
258	<	assertEquals(-1, ai.getAndDecrement(i));
253	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
254	>	for (int i = 0; i < SIZE; i++) {
255	>	aa.set(i, 1);
256	>	assertEquals(1, aa.getAndDecrement(i));
257	>	assertEquals(0, aa.getAndDecrement(i));
258	>	assertEquals(-1, aa.getAndDecrement(i));
259		}
260		}
261
#	Line 203 | Line 263 | public class AtomicLongArrayTest extends
263		* getAndIncrement returns previous value and increments
264		*/
265		public void testGetAndIncrement() {
266	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
267	<	for (int i = 0; i < SIZE; ++i) {
268	<	ai.set(i, 1);
269	<	assertEquals(1, ai.getAndIncrement(i));
270	<	assertEquals(2, ai.get(i));
271	<	ai.set(i, -2);
272	<	assertEquals(-2, ai.getAndIncrement(i));
273	<	assertEquals(-1, ai.getAndIncrement(i));
274	<	assertEquals(0, ai.getAndIncrement(i));
275	<	assertEquals(1, ai.get(i));
266	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
267	>	for (int i = 0; i < SIZE; i++) {
268	>	aa.set(i, 1);
269	>	assertEquals(1, aa.getAndIncrement(i));
270	>	assertEquals(2, aa.get(i));
271	>	aa.set(i, -2);
272	>	assertEquals(-2, aa.getAndIncrement(i));
273	>	assertEquals(-1, aa.getAndIncrement(i));
274	>	assertEquals(0, aa.getAndIncrement(i));
275	>	assertEquals(1, aa.get(i));
276		}
277		}
278
#	Line 220 | Line 280 | public class AtomicLongArrayTest extends
280		* addAndGet adds given value to current, and returns current value
281		*/
282		public void testAddAndGet() {
283	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
284	<	for (int i = 0; i < SIZE; ++i) {
285	<	ai.set(i, 1);
286	<	assertEquals(3, ai.addAndGet(i, 2));
287	<	assertEquals(3, ai.get(i));
288	<	assertEquals(-1, ai.addAndGet(i, -4));
289	<	assertEquals(-1, ai.get(i));
283	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
284	>	for (int i = 0; i < SIZE; i++) {
285	>	aa.set(i, 1);
286	>	assertEquals(3, aa.addAndGet(i, 2));
287	>	assertEquals(3, aa.get(i));
288	>	assertEquals(-1, aa.addAndGet(i, -4));
289	>	assertEquals(-1, aa.get(i));
290		}
291		}
292
#	Line 234 | Line 294 | public class AtomicLongArrayTest extends
294		* decrementAndGet decrements and returns current value
295		*/
296		public void testDecrementAndGet() {
297	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
298	<	for (int i = 0; i < SIZE; ++i) {
299	<	ai.set(i, 1);
300	<	assertEquals(0, ai.decrementAndGet(i));
301	<	assertEquals(-1, ai.decrementAndGet(i));
302	<	assertEquals(-2, ai.decrementAndGet(i));
303	<	assertEquals(-2, ai.get(i));
297	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
298	>	for (int i = 0; i < SIZE; i++) {
299	>	aa.set(i, 1);
300	>	assertEquals(0, aa.decrementAndGet(i));
301	>	assertEquals(-1, aa.decrementAndGet(i));
302	>	assertEquals(-2, aa.decrementAndGet(i));
303	>	assertEquals(-2, aa.get(i));
304		}
305		}
306
#	Line 248 | Line 308 | public class AtomicLongArrayTest extends
308		* incrementAndGet increments and returns current value
309		*/
310		public void testIncrementAndGet() {
311	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
312	<	for (int i = 0; i < SIZE; ++i) {
313	<	ai.set(i, 1);
314	<	assertEquals(2, ai.incrementAndGet(i));
315	<	assertEquals(2, ai.get(i));
316	<	ai.set(i, -2);
317	<	assertEquals(-1, ai.incrementAndGet(i));
318	<	assertEquals(0, ai.incrementAndGet(i));
319	<	assertEquals(1, ai.incrementAndGet(i));
320	<	assertEquals(1, ai.get(i));
311	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
312	>	for (int i = 0; i < SIZE; i++) {
313	>	aa.set(i, 1);
314	>	assertEquals(2, aa.incrementAndGet(i));
315	>	assertEquals(2, aa.get(i));
316	>	aa.set(i, -2);
317	>	assertEquals(-1, aa.incrementAndGet(i));
318	>	assertEquals(0, aa.incrementAndGet(i));
319	>	assertEquals(1, aa.incrementAndGet(i));
320	>	assertEquals(1, aa.get(i));
321		}
322		}
323
264	–	static final long COUNTDOWN = 100000;
265	–
324		class Counter extends CheckedRunnable {
325	<	final AtomicLongArray ai;
325	>	final AtomicLongArray aa;
326		volatile long counts;
327	<	Counter(AtomicLongArray a) { ai = a; }
327	>	Counter(AtomicLongArray a) { aa = a; }
328		public void realRun() {
329		for (;;) {
330		boolean done = true;
331	<	for (int i = 0; i < ai.length(); ++i) {
332	<	long v = ai.get(i);
331	>	for (int i = 0; i < aa.length(); i++) {
332	>	long v = aa.get(i);
333		assertTrue(v >= 0);
334		if (v != 0) {
335		done = false;
336	<	if (ai.compareAndSet(i, v, v-1))
336	>	if (aa.compareAndSet(i, v, v - 1))
337		++counts;
338		}
339		}
#	Line 290 | Line 348 | public class AtomicLongArrayTest extends
348		* update a number of times equal to total count
349		*/
350		public void testCountingInMultipleThreads() throws InterruptedException {
351	<	final AtomicLongArray ai = new AtomicLongArray(SIZE);
352	<	for (int i = 0; i < SIZE; ++i)
353	<	ai.set(i, COUNTDOWN);
354	<	Counter c1 = new Counter(ai);
355	<	Counter c2 = new Counter(ai);
351	>	final AtomicLongArray aa = new AtomicLongArray(SIZE);
352	>	long countdown = 10000;
353	>	for (int i = 0; i < SIZE; i++)
354	>	aa.set(i, countdown);
355	>	Counter c1 = new Counter(aa);
356	>	Counter c2 = new Counter(aa);
357		Thread t1 = new Thread(c1);
358		Thread t2 = new Thread(c2);
359		t1.start();
360		t2.start();
361		t1.join();
362		t2.join();
363	<	assertEquals(c1.counts+c2.counts, SIZE * COUNTDOWN);
363	>	assertEquals(c1.counts+c2.counts, SIZE * countdown);
364		}
365
366		/**
#	Line 309 | Line 368 | public class AtomicLongArrayTest extends
368		*/
369		public void testSerialization() throws Exception {
370		AtomicLongArray x = new AtomicLongArray(SIZE);
371	<	for (int i = 0; i < SIZE; ++i)
371	>	for (int i = 0; i < SIZE; i++)
372		x.set(i, -i);
373		AtomicLongArray y = serialClone(x);
374	<	assertTrue(x != y);
374	>	assertNotSame(x, y);
375		assertEquals(x.length(), y.length());
376	<	for (int i = 0; i < SIZE; ++i) {
376	>	for (int i = 0; i < SIZE; i++) {
377		assertEquals(x.get(i), y.get(i));
378		}
379		}
#	Line 324 | Line 383 | public class AtomicLongArrayTest extends
383		*/
384		public void testToString() {
385		long[] a = { 17, 3, -42, 99, -7 };
386	<	AtomicLongArray ai = new AtomicLongArray(a);
387	<	assertEquals(Arrays.toString(a), ai.toString());
386	>	AtomicLongArray aa = new AtomicLongArray(a);
387	>	assertEquals(Arrays.toString(a), aa.toString());
388	>	}
389	>
390	>	// jdk9
391	>
392	>	/**
393	>	* getPlain returns the last value set
394	>	*/
395	>	public void testGetPlainSet() {
396	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
397	>	for (int i = 0; i < SIZE; i++) {
398	>	aa.set(i, 1);
399	>	assertEquals(1, aa.getPlain(i));
400	>	aa.set(i, 2);
401	>	assertEquals(2, aa.getPlain(i));
402	>	aa.set(i, -3);
403	>	assertEquals(-3, aa.getPlain(i));
404	>	}
405	>	}
406	>
407	>	/**
408	>	* getOpaque returns the last value set
409	>	*/
410	>	public void testGetOpaqueSet() {
411	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
412	>	for (int i = 0; i < SIZE; i++) {
413	>	aa.set(i, 1);
414	>	assertEquals(1, aa.getOpaque(i));
415	>	aa.set(i, 2);
416	>	assertEquals(2, aa.getOpaque(i));
417	>	aa.set(i, -3);
418	>	assertEquals(-3, aa.getOpaque(i));
419	>	}
420	>	}
421	>
422	>	/**
423	>	* getAcquire returns the last value set
424	>	*/
425	>	public void testGetAcquireSet() {
426	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
427	>	for (int i = 0; i < SIZE; i++) {
428	>	aa.set(i, 1);
429	>	assertEquals(1, aa.getAcquire(i));
430	>	aa.set(i, 2);
431	>	assertEquals(2, aa.getAcquire(i));
432	>	aa.set(i, -3);
433	>	assertEquals(-3, aa.getAcquire(i));
434	>	}
435	>	}
436	>
437	>	/**
438	>	* get returns the last value setPlain
439	>	*/
440	>	public void testGetSetPlain() {
441	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
442	>	for (int i = 0; i < SIZE; i++) {
443	>	aa.setPlain(i, 1);
444	>	assertEquals(1, aa.get(i));
445	>	aa.setPlain(i, 2);
446	>	assertEquals(2, aa.get(i));
447	>	aa.setPlain(i, -3);
448	>	assertEquals(-3, aa.get(i));
449	>	}
450	>	}
451	>
452	>	/**
453	>	* get returns the last value setOpaque
454	>	*/
455	>	public void testGetSetOpaque() {
456	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
457	>	for (int i = 0; i < SIZE; i++) {
458	>	aa.setOpaque(i, 1);
459	>	assertEquals(1, aa.get(i));
460	>	aa.setOpaque(i, 2);
461	>	assertEquals(2, aa.get(i));
462	>	aa.setOpaque(i, -3);
463	>	assertEquals(-3, aa.get(i));
464	>	}
465	>	}
466	>
467	>	/**
468	>	* get returns the last value setRelease
469	>	*/
470	>	public void testGetSetRelease() {
471	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
472	>	for (int i = 0; i < SIZE; i++) {
473	>	aa.setRelease(i, 1);
474	>	assertEquals(1, aa.get(i));
475	>	aa.setRelease(i, 2);
476	>	assertEquals(2, aa.get(i));
477	>	aa.setRelease(i, -3);
478	>	assertEquals(-3, aa.get(i));
479	>	}
480	>	}
481	>
482	>	/**
483	>	* compareAndExchange succeeds in changing value if equal to
484	>	* expected else fails
485	>	*/
486	>	public void testCompareAndExchange() {
487	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
488	>	for (int i = 0; i < SIZE; i++) {
489	>	aa.set(i, 1);
490	>	assertEquals(1, aa.compareAndExchange(i, 1, 2));
491	>	assertEquals(2, aa.compareAndExchange(i, 2, -4));
492	>	assertEquals(-4, aa.get(i));
493	>	assertEquals(-4, aa.compareAndExchange(i,-5, 7));
494	>	assertEquals(-4, aa.get(i));
495	>	assertEquals(-4, aa.compareAndExchange(i, -4, 7));
496	>	assertEquals(7, aa.get(i));
497	>	}
498	>	}
499	>
500	>	/**
501	>	* compareAndExchangeAcquire succeeds in changing value if equal to
502	>	* expected else fails
503	>	*/
504	>	public void testCompareAndExchangeAcquire() {
505	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
506	>	for (int i = 0; i < SIZE; i++) {
507	>	aa.set(i, 1);
508	>	assertEquals(1, aa.compareAndExchangeAcquire(i, 1, 2));
509	>	assertEquals(2, aa.compareAndExchangeAcquire(i, 2, -4));
510	>	assertEquals(-4, aa.get(i));
511	>	assertEquals(-4, aa.compareAndExchangeAcquire(i,-5, 7));
512	>	assertEquals(-4, aa.get(i));
513	>	assertEquals(-4, aa.compareAndExchangeAcquire(i, -4, 7));
514	>	assertEquals(7, aa.get(i));
515	>	}
516	>	}
517	>
518	>	/**
519	>	* compareAndExchangeRelease succeeds in changing value if equal to
520	>	* expected else fails
521	>	*/
522	>	public void testCompareAndExchangeRelease() {
523	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
524	>	for (int i = 0; i < SIZE; i++) {
525	>	aa.set(i, 1);
526	>	assertEquals(1, aa.compareAndExchangeRelease(i, 1, 2));
527	>	assertEquals(2, aa.compareAndExchangeRelease(i, 2, -4));
528	>	assertEquals(-4, aa.get(i));
529	>	assertEquals(-4, aa.compareAndExchangeRelease(i,-5, 7));
530	>	assertEquals(-4, aa.get(i));
531	>	assertEquals(-4, aa.compareAndExchangeRelease(i, -4, 7));
532	>	assertEquals(7, aa.get(i));
533	>	}
534	>	}
535	>
536	>	/**
537	>	* repeated weakCompareAndSetVolatile succeeds in changing value when equal
538	>	* to expected
539	>	*/
540	>	public void testWeakCompareAndSetVolatile() {
541	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
542	>	for (int i = 0; i < SIZE; i++) {
543	>	aa.set(i, 1);
544	>	do {} while (!aa.weakCompareAndSetVolatile(i, 1, 2));
545	>	do {} while (!aa.weakCompareAndSetVolatile(i, 2, -4));
546	>	assertEquals(-4, aa.get(i));
547	>	do {} while (!aa.weakCompareAndSetVolatile(i, -4, 7));
548	>	assertEquals(7, aa.get(i));
549	>	}
550	>	}
551	>
552	>	/**
553	>	* repeated weakCompareAndSetAcquire succeeds in changing value when equal
554	>	* to expected
555	>	*/
556	>	public void testWeakCompareAndSetAcquire() {
557	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
558	>	for (int i = 0; i < SIZE; i++) {
559	>	aa.set(i, 1);
560	>	do {} while (!aa.weakCompareAndSetAcquire(i, 1, 2));
561	>	do {} while (!aa.weakCompareAndSetAcquire(i, 2, -4));
562	>	assertEquals(-4, aa.get(i));
563	>	do {} while (!aa.weakCompareAndSetAcquire(i, -4, 7));
564	>	assertEquals(7, aa.get(i));
565	>	}
566	>	}
567	>
568	>	/**
569	>	* repeated weakCompareAndSetRelease succeeds in changing value when equal
570	>	* to expected
571	>	*/
572	>	public void testWeakCompareAndSetRelease() {
573	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
574	>	for (int i = 0; i < SIZE; i++) {
575	>	aa.set(i, 1);
576	>	do {} while (!aa.weakCompareAndSetRelease(i, 1, 2));
577	>	do {} while (!aa.weakCompareAndSetRelease(i, 2, -4));
578	>	assertEquals(-4, aa.get(i));
579	>	do {} while (!aa.weakCompareAndSetRelease(i, -4, 7));
580	>	assertEquals(7, aa.get(i));
581	>	}
582		}
583
584		}

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