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

Comparing jsr166/src/test/tck/AtomicIntegerTest.java (file contents):
Revision 1.8 by dl, Fri Jan 9 20:07:36 2004 UTC vs.
Revision 1.14 by jsr166, Mon Nov 16 05:30:07 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 21 | Line 21 | public class AtomicIntegerTest extends J
21		/**
22		* constructor initializes to given value
23		*/
24	<	public void testConstructor(){
24	>	public void testConstructor() {
25		AtomicInteger ai = new AtomicInteger(1);
26		assertEquals(1,ai.get());
27		}
#	Line 29 | Line 29 | public class AtomicIntegerTest extends J
29		/**
30		* default constructed initializes to zero
31		*/
32	<	public void testConstructor2(){
32	>	public void testConstructor2() {
33		AtomicInteger ai = new AtomicInteger();
34		assertEquals(0,ai.get());
35		}
#	Line 37 | Line 37 | public class AtomicIntegerTest extends J
37		/**
38		* get returns the last value set
39		*/
40	<	public void testGetSet(){
40	>	public void testGetSet() {
41		AtomicInteger ai = new AtomicInteger(1);
42		assertEquals(1,ai.get());
43		ai.set(2);
44		assertEquals(2,ai.get());
45		ai.set(-3);
46		assertEquals(-3,ai.get());
47	<
47	>
48	>	}
49	>
50	>	/**
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(){
65	>	public void testCompareAndSet() {
66		AtomicInteger ai = new AtomicInteger(1);
67		assertTrue(ai.compareAndSet(1,2));
68		assertTrue(ai.compareAndSet(2,-4));
#	Line 68 | Line 81 | public class AtomicIntegerTest extends J
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();
84	>	while (!ai.compareAndSet(2, 3)) Thread.yield();
85		}});
86		try {
87		t.start();
#	Line 77 | Line 90 | public class AtomicIntegerTest extends J
90		assertFalse(t.isAlive());
91		assertEquals(ai.get(), 3);
92		}
93	<	catch(Exception e) {
93	>	catch (Exception e) {
94		unexpectedException();
95		}
96		}
97
98		/**
99		* repeated weakCompareAndSet succeeds in changing value when equal
100	<	* to expected
100	>	* to expected
101		*/
102	<	public void testWeakCompareAndSet(){
102	>	public void testWeakCompareAndSet() {
103		AtomicInteger ai = new AtomicInteger(1);
104	<	while(!ai.weakCompareAndSet(1,2));
105	<	while(!ai.weakCompareAndSet(2,-4));
104	>	while (!ai.weakCompareAndSet(1,2));
105	>	while (!ai.weakCompareAndSet(2,-4));
106		assertEquals(-4,ai.get());
107	<	while(!ai.weakCompareAndSet(-4,7));
107	>	while (!ai.weakCompareAndSet(-4,7));
108		assertEquals(7,ai.get());
109		}
110
111		/**
112		* getAndSet returns previous value and sets to given value
113		*/
114	<	public void testGetAndSet(){
114	>	public void testGetAndSet() {
115		AtomicInteger ai = new AtomicInteger(1);
116		assertEquals(1,ai.getAndSet(0));
117		assertEquals(0,ai.getAndSet(-10));
#	Line 108 | Line 121 | public class AtomicIntegerTest extends J
121		/**
122		* getAndAdd returns previous value and adds given value
123		*/
124	<	public void testGetAndAdd(){
124	>	public void testGetAndAdd() {
125		AtomicInteger ai = new AtomicInteger(1);
126		assertEquals(1,ai.getAndAdd(2));
127		assertEquals(3,ai.get());
#	Line 119 | Line 132 | public class AtomicIntegerTest extends J
132		/**
133		* getAndDecrement returns previous value and decrements
134		*/
135	<	public void testGetAndDecrement(){
135	>	public void testGetAndDecrement() {
136		AtomicInteger ai = new AtomicInteger(1);
137		assertEquals(1,ai.getAndDecrement());
138		assertEquals(0,ai.getAndDecrement());
#	Line 129 | Line 142 | public class AtomicIntegerTest extends J
142		/**
143		* getAndIncrement returns previous value and increments
144		*/
145	<	public void testGetAndIncrement(){
145	>	public void testGetAndIncrement() {
146		AtomicInteger ai = new AtomicInteger(1);
147		assertEquals(1,ai.getAndIncrement());
148		assertEquals(2,ai.get());
#	Line 143 | Line 156 | public class AtomicIntegerTest extends J
156		/**
157		* addAndGet adds given value to current, and returns current value
158		*/
159	<	public void testAddAndGet(){
159	>	public void testAddAndGet() {
160		AtomicInteger ai = new AtomicInteger(1);
161		assertEquals(3,ai.addAndGet(2));
162		assertEquals(3,ai.get());
#	Line 154 | Line 167 | public class AtomicIntegerTest extends J
167		/**
168		* decrementAndGet decrements and returns current value
169		*/
170	<	public void testDecrementAndGet(){
170	>	public void testDecrementAndGet() {
171		AtomicInteger ai = new AtomicInteger(1);
172		assertEquals(0,ai.decrementAndGet());
173		assertEquals(-1,ai.decrementAndGet());
#	Line 165 | Line 178 | public class AtomicIntegerTest extends J
178		/**
179		* incrementAndGet increments and returns current value
180		*/
181	<	public void testIncrementAndGet(){
181	>	public void testIncrementAndGet() {
182		AtomicInteger ai = new AtomicInteger(1);
183		assertEquals(2,ai.incrementAndGet());
184		assertEquals(2,ai.get());
#	Line 193 | Line 206 | public class AtomicIntegerTest extends J
206		ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
207		AtomicInteger r = (AtomicInteger) in.readObject();
208		assertEquals(l.get(), r.get());
209	<	} catch(Exception e){
209	>	} catch (Exception e) {
210		unexpectedException();
211		}
212		}
213
214		/**
215		* toString returns current value.
216	<	*/
216	>	*/
217		public void testToString() {
218		AtomicInteger ai = new AtomicInteger();
219		for (int i = -12; i < 6; ++i) {
#	Line 209 | Line 222 | public class AtomicIntegerTest extends J
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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