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Comparing jsr166/src/test/tck/AtomicLongArrayTest.java (file contents):
Revision 1.8 by dl, Sat Jan 10 01:41:59 2004 UTC vs.
Revision 1.11 by jsr166, Mon Nov 16 04:57:10 2009 UTC

#	Line 2 | Line 2
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.
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9		import junit.framework.*;
#	Line 24 | Line 24 | public class AtomicLongArrayTest extends
24		*/
25		public void testConstructor(){
26		AtomicLongArray ai = new AtomicLongArray(SIZE);
27	<	for (int i = 0; i < SIZE; ++i)
27	>	for (int i = 0; i < SIZE; ++i)
28		assertEquals(0,ai.get(i));
29		}
30
#	Line 48 | Line 48 | public class AtomicLongArrayTest extends
48		long[] a = { 17L, 3L, -42L, 99L, -7L};
49		AtomicLongArray ai = new AtomicLongArray(a);
50		assertEquals(a.length, ai.length());
51	<	for (int i = 0; i < a.length; ++i)
51	>	for (int i = 0; i < a.length; ++i)
52		assertEquals(a[i], ai.get(i));
53		}
54
#	Line 59 | Line 59 | public class AtomicLongArrayTest extends
59		AtomicLongArray ai = new AtomicLongArray(SIZE);
60		try {
61		ai.get(SIZE);
62	<	} catch(IndexOutOfBoundsException success){
62	>	} catch (IndexOutOfBoundsException success){
63		}
64		try {
65		ai.get(-1);
66	<	} catch(IndexOutOfBoundsException success){
66	>	} catch (IndexOutOfBoundsException success){
67		}
68		try {
69		ai.set(SIZE, 0);
70	<	} catch(IndexOutOfBoundsException success){
70	>	} catch (IndexOutOfBoundsException success){
71		}
72		try {
73		ai.set(-1, 0);
74	<	} catch(IndexOutOfBoundsException success){
74	>	} catch (IndexOutOfBoundsException success){
75		}
76		}
77
#	Line 79 | Line 79 | public class AtomicLongArrayTest extends
79		* get returns the last value set at index
80		*/
81		public void testGetSet(){
82	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
82	>	AtomicLongArray ai = new AtomicLongArray(SIZE);
83		for (int i = 0; i < SIZE; ++i) {
84		ai.set(i, 1);
85		assertEquals(1,ai.get(i));
#	Line 91 | Line 91 | public class AtomicLongArrayTest extends
91		}
92
93		/**
94	+	* get returns the last value lazySet at index by same thread
95	+	*/
96	+	public void testGetLazySet(){
97	+	AtomicLongArray ai = new AtomicLongArray(SIZE);
98	+	for (int i = 0; i < SIZE; ++i) {
99	+	ai.lazySet(i, 1);
100	+	assertEquals(1,ai.get(i));
101	+	ai.lazySet(i, 2);
102	+	assertEquals(2,ai.get(i));
103	+	ai.lazySet(i, -3);
104	+	assertEquals(-3,ai.get(i));
105	+	}
106	+	}
107	+
108	+	/**
109		* compareAndSet succeeds in changing value if equal to expected else fails
110		*/
111		public void testCompareAndSet(){
112	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
112	>	AtomicLongArray ai = new AtomicLongArray(SIZE);
113		for (int i = 0; i < SIZE; ++i) {
114		ai.set(i, 1);
115		assertTrue(ai.compareAndSet(i, 1,2));
#	Line 116 | Line 131 | public class AtomicLongArrayTest extends
131		a.set(0, 1);
132		Thread t = new Thread(new Runnable() {
133		public void run() {
134	<	while(!a.compareAndSet(0, 2, 3)) Thread.yield();
134	>	while (!a.compareAndSet(0, 2, 3)) Thread.yield();
135		}});
136		try {
137		t.start();
#	Line 125 | Line 140 | public class AtomicLongArrayTest extends
140		assertFalse(t.isAlive());
141		assertEquals(a.get(0), 3);
142		}
143	<	catch(Exception e) {
143	>	catch (Exception e) {
144		unexpectedException();
145		}
146		}
147
148		/**
149		* repeated weakCompareAndSet succeeds in changing value when equal
150	<	* to expected
150	>	* to expected
151		*/
152		public void testWeakCompareAndSet(){
153	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
153	>	AtomicLongArray ai = new AtomicLongArray(SIZE);
154		for (int i = 0; i < SIZE; ++i) {
155		ai.set(i, 1);
156	<	while(!ai.weakCompareAndSet(i, 1,2));
157	<	while(!ai.weakCompareAndSet(i, 2,-4));
156	>	while (!ai.weakCompareAndSet(i, 1,2));
157	>	while (!ai.weakCompareAndSet(i, 2,-4));
158		assertEquals(-4,ai.get(i));
159	<	while(!ai.weakCompareAndSet(i, -4,7));
159	>	while (!ai.weakCompareAndSet(i, -4,7));
160		assertEquals(7,ai.get(i));
161		}
162		}
#	Line 150 | Line 165 | public class AtomicLongArrayTest extends
165		*  getAndSet returns previous value and sets to given value at given index
166		*/
167		public void testGetAndSet(){
168	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
168	>	AtomicLongArray ai = new AtomicLongArray(SIZE);
169		for (int i = 0; i < SIZE; ++i) {
170		ai.set(i, 1);
171		assertEquals(1,ai.getAndSet(i,0));
#	Line 163 | Line 178 | public class AtomicLongArrayTest extends
178		*  getAndAdd returns previous value and adds given value
179		*/
180		public void testGetAndAdd(){
181	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
181	>	AtomicLongArray ai = new AtomicLongArray(SIZE);
182		for (int i = 0; i < SIZE; ++i) {
183		ai.set(i, 1);
184		assertEquals(1,ai.getAndAdd(i,2));
#	Line 177 | Line 192 | public class AtomicLongArrayTest extends
192		* getAndDecrement returns previous value and decrements
193		*/
194		public void testGetAndDecrement(){
195	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
195	>	AtomicLongArray ai = new AtomicLongArray(SIZE);
196		for (int i = 0; i < SIZE; ++i) {
197		ai.set(i, 1);
198		assertEquals(1,ai.getAndDecrement(i));
#	Line 190 | Line 205 | public class AtomicLongArrayTest extends
205		* getAndIncrement returns previous value and increments
206		*/
207		public void testGetAndIncrement(){
208	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
208	>	AtomicLongArray ai = new AtomicLongArray(SIZE);
209		for (int i = 0; i < SIZE; ++i) {
210		ai.set(i, 1);
211		assertEquals(1,ai.getAndIncrement(i));
#	Line 207 | Line 222 | public class AtomicLongArrayTest extends
222		*  addAndGet adds given value to current, and returns current value
223		*/
224		public void testAddAndGet() {
225	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
225	>	AtomicLongArray ai = new AtomicLongArray(SIZE);
226		for (int i = 0; i < SIZE; ++i) {
227		ai.set(i, 1);
228		assertEquals(3,ai.addAndGet(i,2));
#	Line 221 | Line 236 | public class AtomicLongArrayTest extends
236		* decrementAndGet decrements and returns current value
237		*/
238		public void testDecrementAndGet(){
239	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
239	>	AtomicLongArray ai = new AtomicLongArray(SIZE);
240		for (int i = 0; i < SIZE; ++i) {
241		ai.set(i, 1);
242		assertEquals(0,ai.decrementAndGet(i));
#	Line 235 | Line 250 | public class AtomicLongArrayTest extends
250		* incrementAndGet increments and returns current value
251		*/
252		public void testIncrementAndGet() {
253	<	AtomicLongArray ai = new AtomicLongArray(SIZE);
253	>	AtomicLongArray ai = new AtomicLongArray(SIZE);
254		for (int i = 0; i < SIZE; ++i) {
255		ai.set(i, 1);
256		assertEquals(2,ai.incrementAndGet(i));
#	Line 249 | Line 264 | public class AtomicLongArrayTest extends
264		}
265
266		static final long COUNTDOWN = 100000;
267	<
267	>
268		class Counter implements Runnable {
269		final AtomicLongArray ai;
270		volatile long counts;
#	Line 278 | Line 293 | public class AtomicLongArrayTest extends
293		*/
294		public void testCountingInMultipleThreads() {
295		try {
296	<	final AtomicLongArray ai = new AtomicLongArray(SIZE);
297	<	for (int i = 0; i < SIZE; ++i)
296	>	final AtomicLongArray ai = new AtomicLongArray(SIZE);
297	>	for (int i = 0; i < SIZE; ++i)
298		ai.set(i, COUNTDOWN);
299		Counter c1 = new Counter(ai);
300		Counter c2 = new Counter(ai);
#	Line 291 | Line 306 | public class AtomicLongArrayTest extends
306		t2.join();
307		assertEquals(c1.counts+c2.counts, SIZE * COUNTDOWN);
308		}
309	<	catch(InterruptedException ie) {
309	>	catch (InterruptedException ie) {
310		unexpectedException();
311		}
312		}
#	Line 300 | Line 315 | public class AtomicLongArrayTest extends
315		* a deserialized serialized array holds same values
316		*/
317		public void testSerialization() {
318	<	AtomicLongArray l = new AtomicLongArray(SIZE);
319	<	for (int i = 0; i < SIZE; ++i)
318	>	AtomicLongArray l = new AtomicLongArray(SIZE);
319	>	for (int i = 0; i < SIZE; ++i)
320		l.set(i, -i);
321
322		try {
#	Line 316 | Line 331 | public class AtomicLongArrayTest extends
331		for (int i = 0; i < SIZE; ++i) {
332		assertEquals(l.get(i), r.get(i));
333		}
334	<	} catch(Exception e){
334	>	} catch (Exception e){
335		unexpectedException();
336		}
337		}
338
339		/**
340		* toString returns current value.
341	<	*/
341	>	*/
342		public void testToString() {
343		long[] a = { 17, 3, -42, 99, -7};
344		AtomicLongArray ai = new AtomicLongArray(a);

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