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

Comparing jsr166/src/test/tck/AtomicLongArrayTest.java (file contents):
Revision 1.5 by dl, Thu Sep 25 11:02:41 2003 UTC vs.
Revision 1.33 by dl, Thu Jun 16 23:35:25 2016 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.concurrent.atomic.*;
11	<	import java.io.*;
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());
16	>	public static void main(String[] args) {
17	>	main(suite(), args);
18		}
19		public static Test suite() {
20		return new TestSuite(AtomicLongArrayTest.class);
#	Line 20 | Line 23 | public class AtomicLongArrayTest extends
23		/**
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));
26	>	public void testConstructor() {
27	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
28	>	for (int i = 0; i < SIZE; i++)
29	>	assertEquals(0, aa.get(i));
30		}
31
32		/**
33	<	* get and set for out of bound indices throw IndexOutOfBoundsException
33	>	* constructor with null array throws NPE
34		*/
35	<	public void testIndexing(){
33	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
34	<	try {
35	<	ai.get(SIZE);
36	<	} catch(IndexOutOfBoundsException success){
37	<	}
38	<	try {
39	<	ai.get(-1);
40	<	} catch(IndexOutOfBoundsException success){
41	<	}
35	>	public void testConstructor2NPE() {
36		try {
37	<	ai.set(SIZE, 0);
38	<	} catch(IndexOutOfBoundsException success){
39	<	}
40	<	try {
41	<	ai.set(-1, 0);
42	<	} catch(IndexOutOfBoundsException success){
37	>	long[] a = null;
38	>	new AtomicLongArray(a);
39	>	shouldThrow();
40	>	} catch (NullPointerException success) {}
41	>	}
42	>
43	>	/**
44	>	* constructor with array is of same size and has all elements
45	>	*/
46	>	public void testConstructor2() {
47	>	long[] a = { 17L, 3L, -42L, 99L, -7L };
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 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
139		/**
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));
142	>	public void testGetSet() {
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	>
154	>	/**
155	>	* get returns the last value lazySet at index by same thread
156	>	*/
157	>	public void testGetLazySet() {
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
169		/**
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	<	assertFalse((7 == ai.get(i)));
181	<	assertTrue(ai.compareAndSet(i, -4,7));
182	<	assertEquals(7,ai.get(i));
172	>	public void testCompareAndSet() {
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 85 | Line 187 | public class AtomicLongArrayTest extends
187		* compareAndSet in one thread enables another waiting for value
188		* to succeed
189		*/
190	<	public void testCompareAndSetInMultipleThreads() {
190	>	public void testCompareAndSetInMultipleThreads() throws InterruptedException {
191		final AtomicLongArray a = new AtomicLongArray(1);
192		a.set(0, 1);
193	<	Thread t = new Thread(new Runnable() {
194	<	public void run() {
195	<	while(!a.compareAndSet(0, 2, 3)) Thread.yield();
196	<	}});
197	<	try {
198	<	t.start();
199	<	assertTrue(a.compareAndSet(0, 1, 2));
200	<	t.join(LONG_DELAY_MS);
201	<	assertFalse(t.isAlive());
202	<	assertEquals(a.get(0), 3);
203	<	}
102	<	catch(Exception e) {
103	<	unexpectedException();
104	<	}
193	>	Thread t = new Thread(new CheckedRunnable() {
194	>	public void realRun() {
195	>	while (!a.compareAndSet(0, 2, 3))
196	>	Thread.yield();
197	>	}});
198	>
199	>	t.start();
200	>	assertTrue(a.compareAndSet(0, 1, 2));
201	>	t.join(LONG_DELAY_MS);
202	>	assertFalse(t.isAlive());
203	>	assertEquals(3, a.get(0));
204		}
205
206		/**
207		* repeated weakCompareAndSet succeeds in changing value when equal
208	<	* to expected
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));
210	>	public void testWeakCompareAndSet() {
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
222		/**
223	<	*  getAndSet returns previous value and sets to given value at given index
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));
225	>	public void testGetAndSet() {
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
235		/**
236	<	*  getAndAdd returns previous value and adds given value
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));
238	>	public void testGetAndAdd() {
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
249		/**
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));
252	>	public void testGetAndDecrement() {
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
262		/**
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));
265	>	public void testGetAndIncrement() {
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
279		/**
280	<	*  addAndGet adds given value to current, and returns current value
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
293		/**
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));
296	>	public void testDecrementAndGet() {
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 209 | 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
324	<	static final long COUNTDOWN = 100000;
325	<
227	<	class Counter implements Runnable {
228	<	final AtomicLongArray ai;
324	>	class Counter extends CheckedRunnable {
325	>	final AtomicLongArray aa;
326		volatile long counts;
327	<	Counter(AtomicLongArray a) { ai = a; }
328	<	public void run() {
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);
333	<	threadAssertTrue(v >= 0);
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 250 | Line 347 | public class AtomicLongArrayTest extends
347		* Multiple threads using same array of counters successfully
348		* update a number of times equal to total count
349		*/
350	<	public void testCountingInMultipleThreads() {
351	<	try {
352	<	final AtomicLongArray ai = new AtomicLongArray(SIZE);
353	<	for (int i = 0; i < SIZE; ++i)
354	<	ai.set(i, COUNTDOWN);
355	<	Counter c1 = new Counter(ai);
356	<	Counter c2 = new Counter(ai);
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);
350	>	public void testCountingInMultipleThreads() throws InterruptedException {
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);
364	>	}
365	>
366	>	/**
367	>	* a deserialized serialized array holds same values
368	>	*/
369	>	public void testSerialization() throws Exception {
370	>	AtomicLongArray x = new AtomicLongArray(SIZE);
371	>	for (int i = 0; i < SIZE; i++)
372	>	x.set(i, -i);
373	>	AtomicLongArray y = serialClone(x);
374	>	assertNotSame(x, y);
375	>	assertEquals(x.length(), y.length());
376	>	for (int i = 0; i < SIZE; i++) {
377	>	assertEquals(x.get(i), y.get(i));
378		}
379	<	catch(InterruptedException ie) {
380	<	unexpectedException();
379	>	}
380	>
381	>	/**
382	>	* toString returns current value.
383	>	*/
384	>	public void testToString() {
385	>	long[] a = { 17, 3, -42, 99, -7 };
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	<	* a deserialized serialized array holds same values
408	>	* getOpaque returns the last value set
409		*/
410	<	public void testSerialization() {
411	<	AtomicLongArray l = new AtomicLongArray(SIZE);
412	<	for (int i = 0; i < SIZE; ++i)
413	<	l.set(i, -i);
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	<	try {
423	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
424	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
425	<	out.writeObject(l);
426	<	out.close();
427	<
428	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
429	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
430	<	AtomicLongArray r = (AtomicLongArray) in.readObject();
431	<	for (int i = 0; i < SIZE; ++i) {
432	<	assertEquals(l.get(i), r.get(i));
433	<	}
434	<	} catch(Exception e){
435	<	unexpectedException();
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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