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

Comparing jsr166/src/test/tck/AtomicLongTest.java (file contents):
Revision 1.5 by dl, Thu Sep 25 11:02:41 2003 UTC vs.
Revision 1.13 by jsr166, Mon Nov 16 05:30:07 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.*;
#	Line 20 | Line 21 | public class AtomicLongTest extends JSR1
21		/**
22		* constructor initializes to given value
23		*/
24	<	public void testConstructor(){
24	>	public void testConstructor() {
25		AtomicLong ai = new AtomicLong(1);
26		assertEquals(1,ai.get());
27		}
28
29		/**
30	<	* default constructed intializes to zero
30	>	* default constructed initializes to zero
31		*/
32	<	public void testConstructor2(){
32	>	public void testConstructor2() {
33		AtomicLong ai = new AtomicLong();
34		assertEquals(0,ai.get());
35		}
#	Line 36 | Line 37 | public class AtomicLongTest extends JSR1
37		/**
38		* get returns the last value set
39		*/
40	<	public void testGetSet(){
40	>	public void testGetSet() {
41		AtomicLong ai = new AtomicLong(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	>	AtomicLong ai = new AtomicLong(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		/**
64		* compareAndSet succeeds in changing value if equal to expected else fails
65		*/
66	<	public void testCompareAndSet(){
66	>	public void testCompareAndSet() {
67		AtomicLong ai = new AtomicLong(1);
68		assertTrue(ai.compareAndSet(1,2));
69		assertTrue(ai.compareAndSet(2,-4));
#	Line 67 | Line 82 | public class AtomicLongTest extends JSR1
82		final AtomicLong ai = new AtomicLong(1);
83		Thread t = new Thread(new Runnable() {
84		public void run() {
85	<	while(!ai.compareAndSet(2, 3)) Thread.yield();
85	>	while (!ai.compareAndSet(2, 3)) Thread.yield();
86		}});
87		try {
88		t.start();
#	Line 76 | Line 91 | public class AtomicLongTest extends JSR1
91		assertFalse(t.isAlive());
92		assertEquals(ai.get(), 3);
93		}
94	<	catch(Exception e) {
94	>	catch (Exception e) {
95		unexpectedException();
96		}
97		}
98
99		/**
100		* repeated weakCompareAndSet succeeds in changing value when equal
101	<	* to expected
101	>	* to expected
102		*/
103	<	public void testWeakCompareAndSet(){
103	>	public void testWeakCompareAndSet() {
104		AtomicLong ai = new AtomicLong(1);
105	<	while(!ai.weakCompareAndSet(1,2));
106	<	while(!ai.weakCompareAndSet(2,-4));
105	>	while (!ai.weakCompareAndSet(1,2));
106	>	while (!ai.weakCompareAndSet(2,-4));
107		assertEquals(-4,ai.get());
108	<	while(!ai.weakCompareAndSet(-4,7));
108	>	while (!ai.weakCompareAndSet(-4,7));
109		assertEquals(7,ai.get());
110		}
111
112		/**
113		* getAndSet returns previous value and sets to given value
114		*/
115	<	public void testGetAndSet(){
115	>	public void testGetAndSet() {
116		AtomicLong ai = new AtomicLong(1);
117		assertEquals(1,ai.getAndSet(0));
118		assertEquals(0,ai.getAndSet(-10));
#	Line 107 | Line 122 | public class AtomicLongTest extends JSR1
122		/**
123		* getAndAdd returns previous value and adds given value
124		*/
125	<	public void testGetAndAdd(){
125	>	public void testGetAndAdd() {
126		AtomicLong ai = new AtomicLong(1);
127		assertEquals(1,ai.getAndAdd(2));
128		assertEquals(3,ai.get());
#	Line 118 | Line 133 | public class AtomicLongTest extends JSR1
133		/**
134		* getAndDecrement returns previous value and decrements
135		*/
136	<	public void testGetAndDecrement(){
136	>	public void testGetAndDecrement() {
137		AtomicLong ai = new AtomicLong(1);
138		assertEquals(1,ai.getAndDecrement());
139		assertEquals(0,ai.getAndDecrement());
#	Line 128 | Line 143 | public class AtomicLongTest extends JSR1
143		/**
144		* getAndIncrement returns previous value and increments
145		*/
146	<	public void testGetAndIncrement(){
146	>	public void testGetAndIncrement() {
147		AtomicLong ai = new AtomicLong(1);
148		assertEquals(1,ai.getAndIncrement());
149		assertEquals(2,ai.get());
#	Line 142 | Line 157 | public class AtomicLongTest extends JSR1
157		/**
158		* addAndGet adds given value to current, and returns current value
159		*/
160	<	public void testAddAndGet(){
160	>	public void testAddAndGet() {
161		AtomicLong ai = new AtomicLong(1);
162		assertEquals(3,ai.addAndGet(2));
163		assertEquals(3,ai.get());
#	Line 153 | Line 168 | public class AtomicLongTest extends JSR1
168		/**
169		* decrementAndGet decrements and returns current value
170		*/
171	<	public void testDecrementAndGet(){
171	>	public void testDecrementAndGet() {
172		AtomicLong ai = new AtomicLong(1);
173		assertEquals(0,ai.decrementAndGet());
174		assertEquals(-1,ai.decrementAndGet());
#	Line 164 | Line 179 | public class AtomicLongTest extends JSR1
179		/**
180		* incrementAndGet increments and returns current value
181		*/
182	<	public void testIncrementAndGet(){
182	>	public void testIncrementAndGet() {
183		AtomicLong ai = new AtomicLong(1);
184		assertEquals(2,ai.incrementAndGet());
185		assertEquals(2,ai.get());
#	Line 192 | Line 207 | public class AtomicLongTest extends JSR1
207		ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
208		AtomicLong r = (AtomicLong) in.readObject();
209		assertEquals(l.get(), r.get());
210	<	} catch(Exception e){
210	>	} catch (Exception e) {
211		unexpectedException();
212		}
213		}
214
215	+	/**
216	+	* toString returns current value.
217	+	*/
218	+	public void testToString() {
219	+	AtomicLong ai = new AtomicLong();
220	+	for (long i = -12; i < 6; ++i) {
221	+	ai.set(i);
222	+	assertEquals(ai.toString(), Long.toString(i));
223	+	}
224	+	}
225	+
226	+	/**
227	+	* longValue returns current value.
228	+	*/
229	+	public void testLongValue() {
230	+	AtomicLong ai = new AtomicLong();
231	+	for (int i = -12; i < 6; ++i) {
232	+	ai.set(i);
233	+	assertEquals((long)i, ai.longValue());
234	+	}
235	+	}
236	+
237	+	/**
238	+	* floatValue returns current value.
239	+	*/
240	+	public void testFloatValue() {
241	+	AtomicLong ai = new AtomicLong();
242	+	for (int i = -12; i < 6; ++i) {
243	+	ai.set(i);
244	+	assertEquals((float)i, ai.floatValue());
245	+	}
246	+	}
247	+
248	+	/**
249	+	* doubleValue returns current value.
250	+	*/
251	+	public void testDoubleValue() {
252	+	AtomicLong ai = new AtomicLong();
253	+	for (int i = -12; i < 6; ++i) {
254	+	ai.set(i);
255	+	assertEquals((double)i, ai.doubleValue());
256	+	}
257	+	}
258	+
259	+
260		}

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