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

Comparing jsr166/src/test/tck/AtomicLongArrayTest.java (file contents):
Revision 1.4 by dl, Sat Sep 20 18:20:07 2003 UTC vs.
Revision 1.7 by dl, Thu Jan 8 01:29:46 2004 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 18 | Line 19 | public class AtomicLongArrayTest extends
19		}
20
21		/**
22	<	*
22	>	* constructor creates array of given size with all elements zero
23		*/
24		public void testConstructor(){
25		AtomicLongArray ai = new AtomicLongArray(SIZE);
#	Line 27 | Line 28 | public class AtomicLongArrayTest extends
28		}
29
30		/**
31	<	*
31	>	* constructor with null array throws NPE
32	>	*/
33	>	public void testConstructor2NPE() {
34	>	try {
35	>	long[] a = null;
36	>	AtomicLongArray ai = new AtomicLongArray(a);
37	>	} catch (NullPointerException success) {
38	>	} catch (Exception ex) {
39	>	unexpectedException();
40	>	}
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 ai = new AtomicLongArray(a);
49	>	assertEquals(a.length, ai.length());
50	>	for (int i = 0; i < a.length; ++i)
51	>	assertEquals(a[i], ai.get(i));
52	>	}
53	>
54	>	/**
55	>	* get and set for out of bound indices throw IndexOutOfBoundsException
56	>	*/
57	>	public void testIndexing(){
58	>	AtomicLongArray ai = new AtomicLongArray(SIZE);
59	>	try {
60	>	ai.get(SIZE);
61	>	} catch(IndexOutOfBoundsException success){
62	>	}
63	>	try {
64	>	ai.get(-1);
65	>	} catch(IndexOutOfBoundsException success){
66	>	}
67	>	try {
68	>	ai.set(SIZE, 0);
69	>	} catch(IndexOutOfBoundsException success){
70	>	}
71	>	try {
72	>	ai.set(-1, 0);
73	>	} catch(IndexOutOfBoundsException success){
74	>	}
75	>	}
76	>
77	>	/**
78	>	* get returns the last value set at index
79		*/
80		public void testGetSet(){
81		AtomicLongArray ai = new AtomicLongArray(SIZE);
#	Line 42 | Line 90 | public class AtomicLongArrayTest extends
90		}
91
92		/**
93	<	*
93	>	* compareAndSet succeeds in changing value if equal to expected else fails
94		*/
95		public void testCompareAndSet(){
96		AtomicLongArray ai = new AtomicLongArray(SIZE);
#	Line 59 | Line 107 | public class AtomicLongArrayTest extends
107		}
108
109		/**
110	<	*
110	>	* compareAndSet in one thread enables another waiting for value
111	>	* to succeed
112	>	*/
113	>	public void testCompareAndSetInMultipleThreads() {
114	>	final AtomicLongArray a = new AtomicLongArray(1);
115	>	a.set(0, 1);
116	>	Thread t = new Thread(new Runnable() {
117	>	public void run() {
118	>	while(!a.compareAndSet(0, 2, 3)) Thread.yield();
119	>	}});
120	>	try {
121	>	t.start();
122	>	assertTrue(a.compareAndSet(0, 1, 2));
123	>	t.join(LONG_DELAY_MS);
124	>	assertFalse(t.isAlive());
125	>	assertEquals(a.get(0), 3);
126	>	}
127	>	catch(Exception e) {
128	>	unexpectedException();
129	>	}
130	>	}
131	>
132	>	/**
133	>	* repeated weakCompareAndSet succeeds in changing value when equal
134	>	* to expected
135		*/
136		public void testWeakCompareAndSet(){
137		AtomicLongArray ai = new AtomicLongArray(SIZE);
#	Line 74 | Line 146 | public class AtomicLongArrayTest extends
146		}
147
148		/**
149	<	*
149	>	*  getAndSet returns previous value and sets to given value at given index
150		*/
151		public void testGetAndSet(){
152		AtomicLongArray ai = new AtomicLongArray(SIZE);
#	Line 87 | Line 159 | public class AtomicLongArrayTest extends
159		}
160
161		/**
162	<	*
162	>	*  getAndAdd returns previous value and adds given value
163		*/
164		public void testGetAndAdd(){
165		AtomicLongArray ai = new AtomicLongArray(SIZE);
#	Line 101 | Line 173 | public class AtomicLongArrayTest extends
173		}
174
175		/**
176	<	*
176	>	* getAndDecrement returns previous value and decrements
177		*/
178		public void testGetAndDecrement(){
179		AtomicLongArray ai = new AtomicLongArray(SIZE);
#	Line 114 | Line 186 | public class AtomicLongArrayTest extends
186		}
187
188		/**
189	<	*
189	>	* getAndIncrement returns previous value and increments
190		*/
191		public void testGetAndIncrement(){
192		AtomicLongArray ai = new AtomicLongArray(SIZE);
#	Line 131 | Line 203 | public class AtomicLongArrayTest extends
203		}
204
205		/**
206	<	*
206	>	*  addAndGet adds given value to current, and returns current value
207		*/
208		public void testAddAndGet() {
209		AtomicLongArray ai = new AtomicLongArray(SIZE);
#	Line 145 | Line 217 | public class AtomicLongArrayTest extends
217		}
218
219		/**
220	<	*
220	>	* decrementAndGet decrements and returns current value
221		*/
222		public void testDecrementAndGet(){
223		AtomicLongArray ai = new AtomicLongArray(SIZE);
#	Line 159 | Line 231 | public class AtomicLongArrayTest extends
231		}
232
233		/**
234	<	*
234	>	* incrementAndGet increments and returns current value
235		*/
236		public void testIncrementAndGet() {
237		AtomicLongArray ai = new AtomicLongArray(SIZE);
#	Line 200 | Line 272 | public class AtomicLongArrayTest extends
272		}
273
274		/**
275	<	*
275	>	* Multiple threads using same array of counters successfully
276	>	* update a number of times equal to total count
277		*/
278		public void testCountingInMultipleThreads() {
279		try {
#	Line 223 | Line 296 | public class AtomicLongArrayTest extends
296		}
297
298		/**
299	<	*
299	>	* a deserialized serialized array holds same values
300		*/
301		public void testSerialization() {
302		AtomicLongArray l = new AtomicLongArray(SIZE);

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