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Comparing jsr166/src/test/tck/AtomicLongArrayTest.java (file contents):
Revision 1.5 by dl, Thu Sep 25 11:02:41 2003 UTC vs.
Revision 1.10 by jsr166, Mon Nov 2 20:28:31 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.*;
10		import java.util.concurrent.atomic.*;
11		import java.io.*;
12	+	import java.util.*;
13
14		public class AtomicLongArrayTest extends JSR166TestCase {
15		public static void main (String[] args) {
#	Line 22 | 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
31		/**
32	+	* constructor with null array throws NPE
33	+	*/
34	+	public void testConstructor2NPE() {
35	+	try {
36	+	long[] a = null;
37	+	AtomicLongArray ai = new AtomicLongArray(a);
38	+	} catch (NullPointerException success) {
39	+	} catch (Exception ex) {
40	+	unexpectedException();
41	+	}
42	+	}
43	+
44	+	/**
45	+	* constructor with array is of same size and has all elements
46	+	*/
47	+	public void testConstructor2() {
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)
52	+	assertEquals(a[i], ai.get(i));
53	+	}
54	+
55	+	/**
56		* get and set for out of bound indices throw IndexOutOfBoundsException
57		*/
58		public void testIndexing(){
#	Line 53 | 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 65 | 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 106 | Line 147 | public class AtomicLongArrayTest extends
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));
#	Line 124 | 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 137 | 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 151 | 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 164 | 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 181 | 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 195 | 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 209 | 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 223 | 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 252 | 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 274 | 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 295 | Line 336 | public class AtomicLongArrayTest extends
336		}
337		}
338
339	+	/**
340	+	* toString returns current value.
341	+	*/
342	+	public void testToString() {
343	+	long[] a = { 17, 3, -42, 99, -7};
344	+	AtomicLongArray ai = new AtomicLongArray(a);
345	+	assertEquals(Arrays.toString(a), ai.toString());
346	+	}
347	+
348
349		}

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