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

Comparing jsr166/src/test/tck/AtomicIntegerTest.java (file contents):
Revision 1.4 by dl, Sat Sep 20 18:20:07 2003 UTC vs.
Revision 1.11 by dl, Fri Oct 7 14:58:35 2005 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 AtomicIntegerTest extends J
19		}
20
21		/**
22	<	*
22	>	* constructor initializes to given value
23		*/
24		public void testConstructor(){
25		AtomicInteger ai = new AtomicInteger(1);
#	Line 26 | Line 27 | public class AtomicIntegerTest extends J
27		}
28
29		/**
30	<	*
30	>	* default constructed initializes to zero
31		*/
32		public void testConstructor2(){
33		AtomicInteger ai = new AtomicInteger();
#	Line 34 | Line 35 | public class AtomicIntegerTest extends J
35		}
36
37		/**
38	<	*
38	>	* get returns the last value set
39		*/
40		public void testGetSet(){
41		AtomicInteger ai = new AtomicInteger(1);
#	Line 45 | Line 46 | public class AtomicIntegerTest extends J
46		assertEquals(-3,ai.get());
47
48		}
49	+
50		/**
51	<	*
51	>	* get returns the last value lazySet in same thread
52	>	*/
53	>	public void testGetLazySet(){
54	>	AtomicInteger ai = new AtomicInteger(1);
55	>	assertEquals(1,ai.get());
56	>	ai.lazySet(2);
57	>	assertEquals(2,ai.get());
58	>	ai.lazySet(-3);
59	>	assertEquals(-3,ai.get());
60	>
61	>	}
62	>	/**
63	>	* compareAndSet succeeds in changing value if equal to expected else fails
64		*/
65		public void testCompareAndSet(){
66		AtomicInteger ai = new AtomicInteger(1);
#	Line 60 | Line 74 | public class AtomicIntegerTest extends J
74		}
75
76		/**
77	<	*
77	>	* compareAndSet in one thread enables another waiting for value
78	>	* to succeed
79	>	*/
80	>	public void testCompareAndSetInMultipleThreads() {
81	>	final AtomicInteger ai = new AtomicInteger(1);
82	>	Thread t = new Thread(new Runnable() {
83	>	public void run() {
84	>	while(!ai.compareAndSet(2, 3)) Thread.yield();
85	>	}});
86	>	try {
87	>	t.start();
88	>	assertTrue(ai.compareAndSet(1, 2));
89	>	t.join(LONG_DELAY_MS);
90	>	assertFalse(t.isAlive());
91	>	assertEquals(ai.get(), 3);
92	>	}
93	>	catch(Exception e) {
94	>	unexpectedException();
95	>	}
96	>	}
97	>
98	>	/**
99	>	* repeated weakCompareAndSet succeeds in changing value when equal
100	>	* to expected
101		*/
102		public void testWeakCompareAndSet(){
103		AtomicInteger ai = new AtomicInteger(1);
#	Line 72 | Line 109 | public class AtomicIntegerTest extends J
109		}
110
111		/**
112	<	*
112	>	* getAndSet returns previous value and sets to given value
113		*/
114		public void testGetAndSet(){
115		AtomicInteger ai = new AtomicInteger(1);
#	Line 82 | Line 119 | public class AtomicIntegerTest extends J
119		}
120
121		/**
122	<	*
122	>	* getAndAdd returns previous value and adds given value
123		*/
124		public void testGetAndAdd(){
125		AtomicInteger ai = new AtomicInteger(1);
#	Line 93 | Line 130 | public class AtomicIntegerTest extends J
130		}
131
132		/**
133	<	*
133	>	* getAndDecrement returns previous value and decrements
134		*/
135		public void testGetAndDecrement(){
136		AtomicInteger ai = new AtomicInteger(1);
#	Line 103 | Line 140 | public class AtomicIntegerTest extends J
140		}
141
142		/**
143	<	*
143	>	* getAndIncrement returns previous value and increments
144		*/
145		public void testGetAndIncrement(){
146		AtomicInteger ai = new AtomicInteger(1);
#	Line 117 | Line 154 | public class AtomicIntegerTest extends J
154		}
155
156		/**
157	<	*
157	>	* addAndGet adds given value to current, and returns current value
158		*/
159		public void testAddAndGet(){
160		AtomicInteger ai = new AtomicInteger(1);
#	Line 128 | Line 165 | public class AtomicIntegerTest extends J
165		}
166
167		/**
168	<	*
168	>	* decrementAndGet decrements and returns current value
169		*/
170		public void testDecrementAndGet(){
171		AtomicInteger ai = new AtomicInteger(1);
#	Line 139 | Line 176 | public class AtomicIntegerTest extends J
176		}
177
178		/**
179	<	*
179	>	* incrementAndGet increments and returns current value
180		*/
181		public void testIncrementAndGet(){
182		AtomicInteger ai = new AtomicInteger(1);
#	Line 153 | Line 190 | public class AtomicIntegerTest extends J
190		}
191
192		/**
193	<	*
193	>	* a deserialized serialized atomic holds same value
194		*/
195		public void testSerialization() {
196		AtomicInteger l = new AtomicInteger();
#	Line 174 | Line 211 | public class AtomicIntegerTest extends J
211		}
212		}
213
214	+	/**
215	+	* toString returns current value.
216	+	*/
217	+	public void testToString() {
218	+	AtomicInteger ai = new AtomicInteger();
219	+	for (int i = -12; i < 6; ++i) {
220	+	ai.set(i);
221	+	assertEquals(ai.toString(), Integer.toString(i));
222	+	}
223	+	}
224	+
225	+	/**
226	+	* intValue returns current value.
227	+	*/
228	+	public void testIntValue() {
229	+	AtomicInteger ai = new AtomicInteger();
230	+	for (int i = -12; i < 6; ++i) {
231	+	ai.set(i);
232	+	assertEquals(i, ai.intValue());
233	+	}
234	+	}
235	+
236	+
237	+	/**
238	+	* longValue returns current value.
239	+	*/
240	+	public void testLongValue() {
241	+	AtomicInteger ai = new AtomicInteger();
242	+	for (int i = -12; i < 6; ++i) {
243	+	ai.set(i);
244	+	assertEquals((long)i, ai.longValue());
245	+	}
246	+	}
247	+
248	+	/**
249	+	* floatValue returns current value.
250	+	*/
251	+	public void testFloatValue() {
252	+	AtomicInteger ai = new AtomicInteger();
253	+	for (int i = -12; i < 6; ++i) {
254	+	ai.set(i);
255	+	assertEquals((float)i, ai.floatValue());
256	+	}
257	+	}
258	+
259	+	/**
260	+	* doubleValue returns current value.
261	+	*/
262	+	public void testDoubleValue() {
263	+	AtomicInteger ai = new AtomicInteger();
264	+	for (int i = -12; i < 6; ++i) {
265	+	ai.set(i);
266	+	assertEquals((double)i, ai.doubleValue());
267	+	}
268	+	}
269	+
270	+
271
272		}

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