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Comparing jsr166/src/test/tck/AtomicLongArrayTest.java (file contents):
Revision 1.24 by jsr166, Fri Jun 10 20:17:11 2011 UTC vs.
Revision 1.25 by jsr166, Wed Aug 10 07:14:48 2011 UTC

#	Line 22 | Line 22 | public class AtomicLongArrayTest extends
22		* constructor creates array of given size with all elements zero
23		*/
24		public void testConstructor() {
25	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
26	<	for (int i = 0; i < SIZE; ++i)
27	<	assertEquals(0, ai.get(i));
25	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
26	>	for (int i = 0; i < SIZE; i++)
27	>	assertEquals(0, aa.get(i));
28		}
29
30		/**
#	Line 33 | Line 33 | public class AtomicLongArrayTest extends
33		public void testConstructor2NPE() {
34		try {
35		long[] a = null;
36	<	AtomicLongArray ai = new AtomicLongArray(a);
36	>	AtomicLongArray aa = new AtomicLongArray(a);
37		shouldThrow();
38		} catch (NullPointerException success) {}
39		}
#	Line 43 | Line 43 | public class AtomicLongArrayTest extends
43		*/
44		public void testConstructor2() {
45		long[] a = { 17L, 3L, -42L, 99L, -7L };
46	<	AtomicLongArray ai = new AtomicLongArray(a);
47	<	assertEquals(a.length, ai.length());
48	<	for (int i = 0; i < a.length; ++i)
49	<	assertEquals(a[i], ai.get(i));
46	>	AtomicLongArray aa = new AtomicLongArray(a);
47	>	assertEquals(a.length, aa.length());
48	>	for (int i = 0; i < a.length; i++)
49	>	assertEquals(a[i], aa.get(i));
50		}
51
52		/**
53		* get and set for out of bound indices throw IndexOutOfBoundsException
54		*/
55		public void testIndexing() {
56	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
57	<	try {
58	<	ai.get(SIZE);
59	<	shouldThrow();
60	<	} catch (IndexOutOfBoundsException success) {
61	<	}
62	<	try {
63	<	ai.get(-1);
64	<	shouldThrow();
65	<	} catch (IndexOutOfBoundsException success) {
66	<	}
67	<	try {
68	<	ai.set(SIZE, 0);
69	<	shouldThrow();
70	<	} catch (IndexOutOfBoundsException success) {
71	<	}
72	<	try {
73	<	ai.set(-1, 0);
74	<	shouldThrow();
75	<	} catch (IndexOutOfBoundsException success) {
56	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
57	>	for (int index : new int[] { -1, SIZE }) {
58	>	try {
59	>	aa.get(index);
60	>	shouldThrow();
61	>	} catch (IndexOutOfBoundsException success) {}
62	>	try {
63	>	aa.set(index, 1);
64	>	shouldThrow();
65	>	} catch (IndexOutOfBoundsException success) {}
66	>	try {
67	>	aa.lazySet(index, 1);
68	>	shouldThrow();
69	>	} catch (IndexOutOfBoundsException success) {}
70	>	try {
71	>	aa.compareAndSet(index, 1, 2);
72	>	shouldThrow();
73	>	} catch (IndexOutOfBoundsException success) {}
74	>	try {
75	>	aa.weakCompareAndSet(index, 1, 2);
76	>	shouldThrow();
77	>	} catch (IndexOutOfBoundsException success) {}
78	>	try {
79	>	aa.getAndAdd(index, 1);
80	>	shouldThrow();
81	>	} catch (IndexOutOfBoundsException success) {}
82	>	try {
83	>	aa.addAndGet(index, 1);
84	>	shouldThrow();
85	>	} catch (IndexOutOfBoundsException success) {}
86		}
87		}
88
#	Line 80 | Line 90 | public class AtomicLongArrayTest extends
90		* get returns the last value set at index
91		*/
92		public void testGetSet() {
93	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
94	<	for (int i = 0; i < SIZE; ++i) {
95	<	ai.set(i, 1);
96	<	assertEquals(1, ai.get(i));
97	<	ai.set(i, 2);
98	<	assertEquals(2, ai.get(i));
99	<	ai.set(i, -3);
100	<	assertEquals(-3, ai.get(i));
93	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
94	>	for (int i = 0; i < SIZE; i++) {
95	>	aa.set(i, 1);
96	>	assertEquals(1, aa.get(i));
97	>	aa.set(i, 2);
98	>	assertEquals(2, aa.get(i));
99	>	aa.set(i, -3);
100	>	assertEquals(-3, aa.get(i));
101		}
102		}
103
#	Line 95 | Line 105 | public class AtomicLongArrayTest extends
105		* get returns the last value lazySet at index by same thread
106		*/
107		public void testGetLazySet() {
108	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
109	<	for (int i = 0; i < SIZE; ++i) {
110	<	ai.lazySet(i, 1);
111	<	assertEquals(1, ai.get(i));
112	<	ai.lazySet(i, 2);
113	<	assertEquals(2, ai.get(i));
114	<	ai.lazySet(i, -3);
115	<	assertEquals(-3, ai.get(i));
108	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
109	>	for (int i = 0; i < SIZE; i++) {
110	>	aa.lazySet(i, 1);
111	>	assertEquals(1, aa.get(i));
112	>	aa.lazySet(i, 2);
113	>	assertEquals(2, aa.get(i));
114	>	aa.lazySet(i, -3);
115	>	assertEquals(-3, aa.get(i));
116		}
117		}
118
#	Line 110 | Line 120 | public class AtomicLongArrayTest extends
120		* compareAndSet succeeds in changing value if equal to expected else fails
121		*/
122		public void testCompareAndSet() {
123	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
124	<	for (int i = 0; i < SIZE; ++i) {
125	<	ai.set(i, 1);
126	<	assertTrue(ai.compareAndSet(i, 1, 2));
127	<	assertTrue(ai.compareAndSet(i, 2, -4));
128	<	assertEquals(-4, ai.get(i));
129	<	assertFalse(ai.compareAndSet(i, -5, 7));
130	<	assertEquals(-4, ai.get(i));
131	<	assertTrue(ai.compareAndSet(i, -4, 7));
132	<	assertEquals(7, ai.get(i));
123	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
124	>	for (int i = 0; i < SIZE; i++) {
125	>	aa.set(i, 1);
126	>	assertTrue(aa.compareAndSet(i, 1, 2));
127	>	assertTrue(aa.compareAndSet(i, 2, -4));
128	>	assertEquals(-4, aa.get(i));
129	>	assertFalse(aa.compareAndSet(i, -5, 7));
130	>	assertEquals(-4, aa.get(i));
131	>	assertTrue(aa.compareAndSet(i, -4, 7));
132	>	assertEquals(7, aa.get(i));
133		}
134		}
135
#	Line 148 | Line 158 | public class AtomicLongArrayTest extends
158		* to expected
159		*/
160		public void testWeakCompareAndSet() {
161	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
162	<	for (int i = 0; i < SIZE; ++i) {
163	<	ai.set(i, 1);
164	<	while (!ai.weakCompareAndSet(i, 1, 2));
165	<	while (!ai.weakCompareAndSet(i, 2, -4));
166	<	assertEquals(-4, ai.get(i));
167	<	while (!ai.weakCompareAndSet(i, -4, 7));
168	<	assertEquals(7, ai.get(i));
161	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
162	>	for (int i = 0; i < SIZE; i++) {
163	>	aa.set(i, 1);
164	>	while (!aa.weakCompareAndSet(i, 1, 2));
165	>	while (!aa.weakCompareAndSet(i, 2, -4));
166	>	assertEquals(-4, aa.get(i));
167	>	while (!aa.weakCompareAndSet(i, -4, 7));
168	>	assertEquals(7, aa.get(i));
169		}
170		}
171
#	Line 163 | Line 173 | public class AtomicLongArrayTest extends
173		* getAndSet returns previous value and sets to given value at given index
174		*/
175		public void testGetAndSet() {
176	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
177	<	for (int i = 0; i < SIZE; ++i) {
178	<	ai.set(i, 1);
179	<	assertEquals(1, ai.getAndSet(i, 0));
180	<	assertEquals(0, ai.getAndSet(i, -10));
181	<	assertEquals(-10, ai.getAndSet(i, 1));
176	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
177	>	for (int i = 0; i < SIZE; i++) {
178	>	aa.set(i, 1);
179	>	assertEquals(1, aa.getAndSet(i, 0));
180	>	assertEquals(0, aa.getAndSet(i, -10));
181	>	assertEquals(-10, aa.getAndSet(i, 1));
182		}
183		}
184
#	Line 176 | Line 186 | public class AtomicLongArrayTest extends
186		* getAndAdd returns previous value and adds given value
187		*/
188		public void testGetAndAdd() {
189	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
190	<	for (int i = 0; i < SIZE; ++i) {
191	<	ai.set(i, 1);
192	<	assertEquals(1, ai.getAndAdd(i, 2));
193	<	assertEquals(3, ai.get(i));
194	<	assertEquals(3, ai.getAndAdd(i, -4));
195	<	assertEquals(-1, ai.get(i));
189	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
190	>	for (int i = 0; i < SIZE; i++) {
191	>	aa.set(i, 1);
192	>	assertEquals(1, aa.getAndAdd(i, 2));
193	>	assertEquals(3, aa.get(i));
194	>	assertEquals(3, aa.getAndAdd(i, -4));
195	>	assertEquals(-1, aa.get(i));
196		}
197		}
198
#	Line 190 | Line 200 | public class AtomicLongArrayTest extends
200		* getAndDecrement returns previous value and decrements
201		*/
202		public void testGetAndDecrement() {
203	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
204	<	for (int i = 0; i < SIZE; ++i) {
205	<	ai.set(i, 1);
206	<	assertEquals(1, ai.getAndDecrement(i));
207	<	assertEquals(0, ai.getAndDecrement(i));
208	<	assertEquals(-1, ai.getAndDecrement(i));
203	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
204	>	for (int i = 0; i < SIZE; i++) {
205	>	aa.set(i, 1);
206	>	assertEquals(1, aa.getAndDecrement(i));
207	>	assertEquals(0, aa.getAndDecrement(i));
208	>	assertEquals(-1, aa.getAndDecrement(i));
209		}
210		}
211
#	Line 203 | Line 213 | public class AtomicLongArrayTest extends
213		* getAndIncrement returns previous value and increments
214		*/
215		public void testGetAndIncrement() {
216	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
217	<	for (int i = 0; i < SIZE; ++i) {
218	<	ai.set(i, 1);
219	<	assertEquals(1, ai.getAndIncrement(i));
220	<	assertEquals(2, ai.get(i));
221	<	ai.set(i, -2);
222	<	assertEquals(-2, ai.getAndIncrement(i));
223	<	assertEquals(-1, ai.getAndIncrement(i));
224	<	assertEquals(0, ai.getAndIncrement(i));
225	<	assertEquals(1, ai.get(i));
216	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
217	>	for (int i = 0; i < SIZE; i++) {
218	>	aa.set(i, 1);
219	>	assertEquals(1, aa.getAndIncrement(i));
220	>	assertEquals(2, aa.get(i));
221	>	aa.set(i, -2);
222	>	assertEquals(-2, aa.getAndIncrement(i));
223	>	assertEquals(-1, aa.getAndIncrement(i));
224	>	assertEquals(0, aa.getAndIncrement(i));
225	>	assertEquals(1, aa.get(i));
226		}
227		}
228
#	Line 220 | Line 230 | public class AtomicLongArrayTest extends
230		* addAndGet adds given value to current, and returns current value
231		*/
232		public void testAddAndGet() {
233	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
234	<	for (int i = 0; i < SIZE; ++i) {
235	<	ai.set(i, 1);
236	<	assertEquals(3, ai.addAndGet(i, 2));
237	<	assertEquals(3, ai.get(i));
238	<	assertEquals(-1, ai.addAndGet(i, -4));
239	<	assertEquals(-1, ai.get(i));
233	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
234	>	for (int i = 0; i < SIZE; i++) {
235	>	aa.set(i, 1);
236	>	assertEquals(3, aa.addAndGet(i, 2));
237	>	assertEquals(3, aa.get(i));
238	>	assertEquals(-1, aa.addAndGet(i, -4));
239	>	assertEquals(-1, aa.get(i));
240		}
241		}
242
#	Line 234 | Line 244 | public class AtomicLongArrayTest extends
244		* decrementAndGet decrements and returns current value
245		*/
246		public void testDecrementAndGet() {
247	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
248	<	for (int i = 0; i < SIZE; ++i) {
249	<	ai.set(i, 1);
250	<	assertEquals(0, ai.decrementAndGet(i));
251	<	assertEquals(-1, ai.decrementAndGet(i));
252	<	assertEquals(-2, ai.decrementAndGet(i));
253	<	assertEquals(-2, ai.get(i));
247	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
248	>	for (int i = 0; i < SIZE; i++) {
249	>	aa.set(i, 1);
250	>	assertEquals(0, aa.decrementAndGet(i));
251	>	assertEquals(-1, aa.decrementAndGet(i));
252	>	assertEquals(-2, aa.decrementAndGet(i));
253	>	assertEquals(-2, aa.get(i));
254		}
255		}
256
#	Line 248 | Line 258 | public class AtomicLongArrayTest extends
258		* incrementAndGet increments and returns current value
259		*/
260		public void testIncrementAndGet() {
261	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
262	<	for (int i = 0; i < SIZE; ++i) {
263	<	ai.set(i, 1);
264	<	assertEquals(2, ai.incrementAndGet(i));
265	<	assertEquals(2, ai.get(i));
266	<	ai.set(i, -2);
267	<	assertEquals(-1, ai.incrementAndGet(i));
268	<	assertEquals(0, ai.incrementAndGet(i));
269	<	assertEquals(1, ai.incrementAndGet(i));
270	<	assertEquals(1, ai.get(i));
261	>	AtomicLongArray aa = new AtomicLongArray(SIZE);
262	>	for (int i = 0; i < SIZE; i++) {
263	>	aa.set(i, 1);
264	>	assertEquals(2, aa.incrementAndGet(i));
265	>	assertEquals(2, aa.get(i));
266	>	aa.set(i, -2);
267	>	assertEquals(-1, aa.incrementAndGet(i));
268	>	assertEquals(0, aa.incrementAndGet(i));
269	>	assertEquals(1, aa.incrementAndGet(i));
270	>	assertEquals(1, aa.get(i));
271		}
272		}
273
274		static final long COUNTDOWN = 100000;
275
276		class Counter extends CheckedRunnable {
277	<	final AtomicLongArray ai;
277	>	final AtomicLongArray aa;
278		volatile long counts;
279	<	Counter(AtomicLongArray a) { ai = a; }
279	>	Counter(AtomicLongArray a) { aa = a; }
280		public void realRun() {
281		for (;;) {
282		boolean done = true;
283	<	for (int i = 0; i < ai.length(); ++i) {
284	<	long v = ai.get(i);
283	>	for (int i = 0; i < aa.length(); i++) {
284	>	long v = aa.get(i);
285		assertTrue(v >= 0);
286		if (v != 0) {
287		done = false;
288	<	if (ai.compareAndSet(i, v, v-1))
288	>	if (aa.compareAndSet(i, v, v-1))
289		++counts;
290		}
291		}
#	Line 290 | Line 300 | public class AtomicLongArrayTest extends
300		* update a number of times equal to total count
301		*/
302		public void testCountingInMultipleThreads() throws InterruptedException {
303	<	final AtomicLongArray ai = new AtomicLongArray(SIZE);
304	<	for (int i = 0; i < SIZE; ++i)
305	<	ai.set(i, COUNTDOWN);
306	<	Counter c1 = new Counter(ai);
307	<	Counter c2 = new Counter(ai);
303	>	final AtomicLongArray aa = new AtomicLongArray(SIZE);
304	>	for (int i = 0; i < SIZE; i++)
305	>	aa.set(i, COUNTDOWN);
306	>	Counter c1 = new Counter(aa);
307	>	Counter c2 = new Counter(aa);
308		Thread t1 = new Thread(c1);
309		Thread t2 = new Thread(c2);
310		t1.start();
#	Line 309 | Line 319 | public class AtomicLongArrayTest extends
319		*/
320		public void testSerialization() throws Exception {
321		AtomicLongArray x = new AtomicLongArray(SIZE);
322	<	for (int i = 0; i < SIZE; ++i)
322	>	for (int i = 0; i < SIZE; i++)
323		x.set(i, -i);
324		AtomicLongArray y = serialClone(x);
325		assertTrue(x != y);
326		assertEquals(x.length(), y.length());
327	<	for (int i = 0; i < SIZE; ++i) {
327	>	for (int i = 0; i < SIZE; i++) {
328		assertEquals(x.get(i), y.get(i));
329		}
330		}
#	Line 324 | Line 334 | public class AtomicLongArrayTest extends
334		*/
335		public void testToString() {
336		long[] a = { 17, 3, -42, 99, -7 };
337	<	AtomicLongArray ai = new AtomicLongArray(a);
338	<	assertEquals(Arrays.toString(a), ai.toString());
337	>	AtomicLongArray aa = new AtomicLongArray(a);
338	>	assertEquals(Arrays.toString(a), aa.toString());
339		}
340
341		}

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