ViewVC Help

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

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

Comparing jsr166/src/test/tck/AtomicIntegerTest.java (file contents):
Revision 1.17 by jsr166, Sat Nov 21 02:07:26 2009 UTC vs.
Revision 1.25 by jsr166, Thu May 30 03:28:55 2013 UTC

#	Line 1 | Line 1
1		/*
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
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		* Other contributors include Andrew Wright, Jeffrey Hayes,
6		* Pat Fisher, Mike Judd.
7		*/
8
9		import junit.framework.*;
10	<	import java.util.concurrent.atomic.*;
11	<	import java.io.*;
10	>	import java.util.concurrent.atomic.AtomicInteger;
11
12		public class AtomicIntegerTest extends JSR166TestCase {
13	<	public static void main (String[] args) {
14	<	junit.textui.TestRunner.run (suite());
13	>	public static void main(String[] args) {
14	>	junit.textui.TestRunner.run(suite());
15		}
16		public static Test suite() {
17		return new TestSuite(AtomicIntegerTest.class);
18		}
19
20	+	final int[] VALUES = {
21	+	Integer.MIN_VALUE, -1, 0, 1, 42, Integer.MAX_VALUE,
22	+	};
23	+
24		/**
25		* constructor initializes to given value
26		*/
27		public void testConstructor() {
28		AtomicInteger ai = new AtomicInteger(1);
29	<	assertEquals(1,ai.get());
29	>	assertEquals(1, ai.get());
30		}
31
32		/**
#	Line 31 | Line 34 | public class AtomicIntegerTest extends J
34		*/
35		public void testConstructor2() {
36		AtomicInteger ai = new AtomicInteger();
37	<	assertEquals(0,ai.get());
37	>	assertEquals(0, ai.get());
38		}
39
40		/**
#	Line 39 | Line 42 | public class AtomicIntegerTest extends J
42		*/
43		public void testGetSet() {
44		AtomicInteger ai = new AtomicInteger(1);
45	<	assertEquals(1,ai.get());
45	>	assertEquals(1, ai.get());
46		ai.set(2);
47	<	assertEquals(2,ai.get());
47	>	assertEquals(2, ai.get());
48		ai.set(-3);
49	<	assertEquals(-3,ai.get());
47	<
49	>	assertEquals(-3, ai.get());
50		}
51
52		/**
#	Line 52 | Line 54 | public class AtomicIntegerTest extends J
54		*/
55		public void testGetLazySet() {
56		AtomicInteger ai = new AtomicInteger(1);
57	<	assertEquals(1,ai.get());
57	>	assertEquals(1, ai.get());
58		ai.lazySet(2);
59	<	assertEquals(2,ai.get());
59	>	assertEquals(2, ai.get());
60		ai.lazySet(-3);
61	<	assertEquals(-3,ai.get());
60	<
61	>	assertEquals(-3, ai.get());
62		}
63	+
64		/**
65		* compareAndSet succeeds in changing value if equal to expected else fails
66		*/
67		public void testCompareAndSet() {
68		AtomicInteger ai = new AtomicInteger(1);
69	<	assertTrue(ai.compareAndSet(1,2));
70	<	assertTrue(ai.compareAndSet(2,-4));
71	<	assertEquals(-4,ai.get());
72	<	assertFalse(ai.compareAndSet(-5,7));
73	<	assertFalse((7 == ai.get()));
74	<	assertTrue(ai.compareAndSet(-4,7));
75	<	assertEquals(7,ai.get());
69	>	assertTrue(ai.compareAndSet(1, 2));
70	>	assertTrue(ai.compareAndSet(2, -4));
71	>	assertEquals(-4, ai.get());
72	>	assertFalse(ai.compareAndSet(-5, 7));
73	>	assertEquals(-4, ai.get());
74	>	assertTrue(ai.compareAndSet(-4, 7));
75	>	assertEquals(7, ai.get());
76		}
77
78		/**
#	Line 89 | Line 91 | public class AtomicIntegerTest extends J
91		assertTrue(ai.compareAndSet(1, 2));
92		t.join(LONG_DELAY_MS);
93		assertFalse(t.isAlive());
94	<	assertEquals(ai.get(), 3);
94	>	assertEquals(3, ai.get());
95		}
96
97		/**
#	Line 98 | Line 100 | public class AtomicIntegerTest extends J
100		*/
101		public void testWeakCompareAndSet() {
102		AtomicInteger ai = new AtomicInteger(1);
103	<	while (!ai.weakCompareAndSet(1,2));
104	<	while (!ai.weakCompareAndSet(2,-4));
105	<	assertEquals(-4,ai.get());
106	<	while (!ai.weakCompareAndSet(-4,7));
107	<	assertEquals(7,ai.get());
103	>	while (!ai.weakCompareAndSet(1, 2));
104	>	while (!ai.weakCompareAndSet(2, -4));
105	>	assertEquals(-4, ai.get());
106	>	while (!ai.weakCompareAndSet(-4, 7));
107	>	assertEquals(7, ai.get());
108		}
109
110		/**
#	Line 110 | Line 112 | public class AtomicIntegerTest extends J
112		*/
113		public void testGetAndSet() {
114		AtomicInteger ai = new AtomicInteger(1);
115	<	assertEquals(1,ai.getAndSet(0));
116	<	assertEquals(0,ai.getAndSet(-10));
117	<	assertEquals(-10,ai.getAndSet(1));
115	>	assertEquals(1, ai.getAndSet(0));
116	>	assertEquals(0, ai.getAndSet(-10));
117	>	assertEquals(-10, ai.getAndSet(1));
118		}
119
120		/**
#	Line 120 | Line 122 | public class AtomicIntegerTest extends J
122		*/
123		public void testGetAndAdd() {
124		AtomicInteger ai = new AtomicInteger(1);
125	<	assertEquals(1,ai.getAndAdd(2));
126	<	assertEquals(3,ai.get());
127	<	assertEquals(3,ai.getAndAdd(-4));
128	<	assertEquals(-1,ai.get());
125	>	assertEquals(1, ai.getAndAdd(2));
126	>	assertEquals(3, ai.get());
127	>	assertEquals(3, ai.getAndAdd(-4));
128	>	assertEquals(-1, ai.get());
129		}
130
131		/**
#	Line 131 | Line 133 | public class AtomicIntegerTest extends J
133		*/
134		public void testGetAndDecrement() {
135		AtomicInteger ai = new AtomicInteger(1);
136	<	assertEquals(1,ai.getAndDecrement());
137	<	assertEquals(0,ai.getAndDecrement());
138	<	assertEquals(-1,ai.getAndDecrement());
136	>	assertEquals(1, ai.getAndDecrement());
137	>	assertEquals(0, ai.getAndDecrement());
138	>	assertEquals(-1, ai.getAndDecrement());
139		}
140
141		/**
#	Line 141 | Line 143 | public class AtomicIntegerTest extends J
143		*/
144		public void testGetAndIncrement() {
145		AtomicInteger ai = new AtomicInteger(1);
146	<	assertEquals(1,ai.getAndIncrement());
147	<	assertEquals(2,ai.get());
146	>	assertEquals(1, ai.getAndIncrement());
147	>	assertEquals(2, ai.get());
148		ai.set(-2);
149	<	assertEquals(-2,ai.getAndIncrement());
150	<	assertEquals(-1,ai.getAndIncrement());
151	<	assertEquals(0,ai.getAndIncrement());
152	<	assertEquals(1,ai.get());
149	>	assertEquals(-2, ai.getAndIncrement());
150	>	assertEquals(-1, ai.getAndIncrement());
151	>	assertEquals(0, ai.getAndIncrement());
152	>	assertEquals(1, ai.get());
153		}
154
155		/**
#	Line 155 | Line 157 | public class AtomicIntegerTest extends J
157		*/
158		public void testAddAndGet() {
159		AtomicInteger ai = new AtomicInteger(1);
160	<	assertEquals(3,ai.addAndGet(2));
161	<	assertEquals(3,ai.get());
162	<	assertEquals(-1,ai.addAndGet(-4));
163	<	assertEquals(-1,ai.get());
160	>	assertEquals(3, ai.addAndGet(2));
161	>	assertEquals(3, ai.get());
162	>	assertEquals(-1, ai.addAndGet(-4));
163	>	assertEquals(-1, ai.get());
164		}
165
166		/**
#	Line 166 | Line 168 | public class AtomicIntegerTest extends J
168		*/
169		public void testDecrementAndGet() {
170		AtomicInteger ai = new AtomicInteger(1);
171	<	assertEquals(0,ai.decrementAndGet());
172	<	assertEquals(-1,ai.decrementAndGet());
173	<	assertEquals(-2,ai.decrementAndGet());
174	<	assertEquals(-2,ai.get());
171	>	assertEquals(0, ai.decrementAndGet());
172	>	assertEquals(-1, ai.decrementAndGet());
173	>	assertEquals(-2, ai.decrementAndGet());
174	>	assertEquals(-2, ai.get());
175		}
176
177		/**
#	Line 177 | Line 179 | public class AtomicIntegerTest extends J
179		*/
180		public void testIncrementAndGet() {
181		AtomicInteger ai = new AtomicInteger(1);
182	<	assertEquals(2,ai.incrementAndGet());
183	<	assertEquals(2,ai.get());
182	>	assertEquals(2, ai.incrementAndGet());
183	>	assertEquals(2, ai.get());
184		ai.set(-2);
185	<	assertEquals(-1,ai.incrementAndGet());
186	<	assertEquals(0,ai.incrementAndGet());
187	<	assertEquals(1,ai.incrementAndGet());
188	<	assertEquals(1,ai.get());
185	>	assertEquals(-1, ai.incrementAndGet());
186	>	assertEquals(0, ai.incrementAndGet());
187	>	assertEquals(1, ai.incrementAndGet());
188	>	assertEquals(1, ai.get());
189		}
190
191		/**
192		* a deserialized serialized atomic holds same value
193		*/
194		public void testSerialization() throws Exception {
195	<	AtomicInteger l = new AtomicInteger();
196	<
197	<	l.set(22);
198	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
199	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
200	<	out.writeObject(l);
201	<	out.close();
202	<
201	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
202	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
203	<	AtomicInteger r = (AtomicInteger) in.readObject();
204	<	assertEquals(l.get(), r.get());
195	>	AtomicInteger x = new AtomicInteger();
196	>	AtomicInteger y = serialClone(x);
197	>	assertNotSame(x, y);
198	>	x.set(22);
199	>	AtomicInteger z = serialClone(x);
200	>	assertEquals(22, x.get());
201	>	assertEquals(0, y.get());
202	>	assertEquals(22, z.get());
203		}
204
205		/**
#	Line 209 | Line 207 | public class AtomicIntegerTest extends J
207		*/
208		public void testToString() {
209		AtomicInteger ai = new AtomicInteger();
210	<	for (int i = -12; i < 6; ++i) {
211	<	ai.set(i);
212	<	assertEquals(ai.toString(), Integer.toString(i));
210	>	assertEquals("0", ai.toString());
211	>	for (int x : VALUES) {
212	>	ai.set(x);
213	>	assertEquals(Integer.toString(x), ai.toString());
214		}
215		}
216
#	Line 220 | Line 219 | public class AtomicIntegerTest extends J
219		*/
220		public void testIntValue() {
221		AtomicInteger ai = new AtomicInteger();
222	<	for (int i = -12; i < 6; ++i) {
223	<	ai.set(i);
224	<	assertEquals(i, ai.intValue());
222	>	assertEquals(0, ai.intValue());
223	>	for (int x : VALUES) {
224	>	ai.set(x);
225	>	assertEquals(x, ai.intValue());
226		}
227		}
228
229	–
229		/**
230		* longValue returns current value.
231		*/
232		public void testLongValue() {
233		AtomicInteger ai = new AtomicInteger();
234	<	for (int i = -12; i < 6; ++i) {
235	<	ai.set(i);
236	<	assertEquals((long)i, ai.longValue());
234	>	assertEquals(0L, ai.longValue());
235	>	for (int x : VALUES) {
236	>	ai.set(x);
237	>	assertEquals((long)x, ai.longValue());
238		}
239		}
240
#	Line 243 | Line 243 | public class AtomicIntegerTest extends J
243		*/
244		public void testFloatValue() {
245		AtomicInteger ai = new AtomicInteger();
246	<	for (int i = -12; i < 6; ++i) {
247	<	ai.set(i);
248	<	assertEquals((float)i, ai.floatValue());
246	>	assertEquals(0.0f, ai.floatValue());
247	>	for (int x : VALUES) {
248	>	ai.set(x);
249	>	assertEquals((float)x, ai.floatValue());
250		}
251		}
252
#	Line 254 | Line 255 | public class AtomicIntegerTest extends J
255		*/
256		public void testDoubleValue() {
257		AtomicInteger ai = new AtomicInteger();
258	<	for (int i = -12; i < 6; ++i) {
259	<	ai.set(i);
260	<	assertEquals((double)i, ai.doubleValue());
258	>	assertEquals(0.0d, ai.doubleValue());
259	>	for (int x : VALUES) {
260	>	ai.set(x);
261	>	assertEquals((double)x, ai.doubleValue());
262		}
263		}
264
263	–
264	–
265		}

Diff Legend

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