ViewVC Help

View File | Revision Log | Show Annotations | Download File | Root Listing

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

Comparing jsr166/src/test/tck/AtomicLongArrayTest.java (file contents):
Revision 1.3 by dl, Sun Sep 14 20:42:40 2003 UTC vs.
Revision 1.6 by dl, Sat Dec 27 19:26:43 2003 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.*;
#	Line 17 | Line 18 | public class AtomicLongArrayTest extends
18		return new TestSuite(AtomicLongArrayTest.class);
19		}
20
21	+	/**
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));
28		}
29
30	+	/**
31	+	* get and set for out of bound indices throw IndexOutOfBoundsException
32	+	*/
33	+	public void testIndexing(){
34	+	AtomicLongArray ai = new AtomicLongArray(SIZE);
35	+	try {
36	+	ai.get(SIZE);
37	+	} catch(IndexOutOfBoundsException success){
38	+	}
39	+	try {
40	+	ai.get(-1);
41	+	} catch(IndexOutOfBoundsException success){
42	+	}
43	+	try {
44	+	ai.set(SIZE, 0);
45	+	} catch(IndexOutOfBoundsException success){
46	+	}
47	+	try {
48	+	ai.set(-1, 0);
49	+	} catch(IndexOutOfBoundsException success){
50	+	}
51	+	}
52	+
53	+	/**
54	+	* get returns the last value set at index
55	+	*/
56		public void testGetSet(){
57		AtomicLongArray ai = new AtomicLongArray(SIZE);
58		for (int i = 0; i < SIZE; ++i) {
#	Line 35 | Line 65 | public class AtomicLongArrayTest extends
65		}
66		}
67
68	+	/**
69	+	* compareAndSet succeeds in changing value if equal to expected else fails
70	+	*/
71		public void testCompareAndSet(){
72		AtomicLongArray ai = new AtomicLongArray(SIZE);
73		for (int i = 0; i < SIZE; ++i) {
#	Line 49 | Line 82 | public class AtomicLongArrayTest extends
82		}
83		}
84
85	+	/**
86	+	* compareAndSet in one thread enables another waiting for value
87	+	* to succeed
88	+	*/
89	+	public void testCompareAndSetInMultipleThreads() {
90	+	final AtomicLongArray a = new AtomicLongArray(1);
91	+	a.set(0, 1);
92	+	Thread t = new Thread(new Runnable() {
93	+	public void run() {
94	+	while(!a.compareAndSet(0, 2, 3)) Thread.yield();
95	+	}});
96	+	try {
97	+	t.start();
98	+	assertTrue(a.compareAndSet(0, 1, 2));
99	+	t.join(LONG_DELAY_MS);
100	+	assertFalse(t.isAlive());
101	+	assertEquals(a.get(0), 3);
102	+	}
103	+	catch(Exception e) {
104	+	unexpectedException();
105	+	}
106	+	}
107	+
108	+	/**
109	+	* repeated weakCompareAndSet succeeds in changing value when equal
110	+	* to expected
111	+	*/
112		public void testWeakCompareAndSet(){
113		AtomicLongArray ai = new AtomicLongArray(SIZE);
114		for (int i = 0; i < SIZE; ++i) {
#	Line 61 | Line 121 | public class AtomicLongArrayTest extends
121		}
122		}
123
124	+	/**
125	+	*  getAndSet returns previous value and sets to given value at given index
126	+	*/
127		public void testGetAndSet(){
128		AtomicLongArray ai = new AtomicLongArray(SIZE);
129		for (int i = 0; i < SIZE; ++i) {
#	Line 71 | Line 134 | public class AtomicLongArrayTest extends
134		}
135		}
136
137	+	/**
138	+	*  getAndAdd returns previous value and adds given value
139	+	*/
140		public void testGetAndAdd(){
141		AtomicLongArray ai = new AtomicLongArray(SIZE);
142		for (int i = 0; i < SIZE; ++i) {
#	Line 82 | Line 148 | public class AtomicLongArrayTest extends
148		}
149		}
150
151	+	/**
152	+	* getAndDecrement returns previous value and decrements
153	+	*/
154		public void testGetAndDecrement(){
155		AtomicLongArray ai = new AtomicLongArray(SIZE);
156		for (int i = 0; i < SIZE; ++i) {
#	Line 92 | Line 161 | public class AtomicLongArrayTest extends
161		}
162		}
163
164	+	/**
165	+	* getAndIncrement returns previous value and increments
166	+	*/
167		public void testGetAndIncrement(){
168		AtomicLongArray ai = new AtomicLongArray(SIZE);
169		for (int i = 0; i < SIZE; ++i) {
#	Line 106 | Line 178 | public class AtomicLongArrayTest extends
178		}
179		}
180
181	+	/**
182	+	*  addAndGet adds given value to current, and returns current value
183	+	*/
184		public void testAddAndGet() {
185		AtomicLongArray ai = new AtomicLongArray(SIZE);
186		for (int i = 0; i < SIZE; ++i) {
#	Line 117 | Line 192 | public class AtomicLongArrayTest extends
192		}
193		}
194
195	+	/**
196	+	* decrementAndGet decrements and returns current value
197	+	*/
198		public void testDecrementAndGet(){
199		AtomicLongArray ai = new AtomicLongArray(SIZE);
200		for (int i = 0; i < SIZE; ++i) {
#	Line 128 | Line 206 | public class AtomicLongArrayTest extends
206		}
207		}
208
209	+	/**
210	+	* incrementAndGet increments and returns current value
211	+	*/
212		public void testIncrementAndGet() {
213		AtomicLongArray ai = new AtomicLongArray(SIZE);
214		for (int i = 0; i < SIZE; ++i) {
#	Line 166 | Line 247 | public class AtomicLongArrayTest extends
247		}
248		}
249
250	+	/**
251	+	* Multiple threads using same array of counters successfully
252	+	* update a number of times equal to total count
253	+	*/
254		public void testCountingInMultipleThreads() {
255		try {
256		final AtomicLongArray ai = new AtomicLongArray(SIZE);
#	Line 182 | Line 267 | public class AtomicLongArrayTest extends
267		assertEquals(c1.counts+c2.counts, SIZE * COUNTDOWN);
268		}
269		catch(InterruptedException ie) {
270	<	fail("unexpected exception");
270	>	unexpectedException();
271		}
272		}
273
274	+	/**
275	+	* a deserialized serialized array holds same values
276	+	*/
277		public void testSerialization() {
278		AtomicLongArray l = new AtomicLongArray(SIZE);
279		for (int i = 0; i < SIZE; ++i)
#	Line 204 | Line 292 | public class AtomicLongArrayTest extends
292		assertEquals(l.get(i), r.get(i));
293		}
294		} catch(Exception e){
295	<	e.printStackTrace();
208	<	fail("unexpected exception");
295	>	unexpectedException();
296		}
297		}
298

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines