1 |
dl |
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. |
6 |
|
|
*/ |
7 |
|
|
|
8 |
|
|
import junit.framework.*; |
9 |
|
|
import java.util.concurrent.atomic.*; |
10 |
|
|
|
11 |
|
|
public class AtomicLongTest extends TestCase { |
12 |
|
|
public static void main (String[] args) { |
13 |
|
|
junit.textui.TestRunner.run (suite()); |
14 |
|
|
} |
15 |
|
|
public static Test suite() { |
16 |
|
|
return new TestSuite(AtomicLongTest.class); |
17 |
|
|
} |
18 |
|
|
|
19 |
|
|
public void testConstructor(){ |
20 |
|
|
AtomicLong ai = new AtomicLong(1); |
21 |
|
|
assertEquals(1,ai.get()); |
22 |
|
|
} |
23 |
|
|
|
24 |
|
|
public void testConstructor2(){ |
25 |
|
|
AtomicLong ai = new AtomicLong(); |
26 |
|
|
assertEquals(0,ai.get()); |
27 |
|
|
} |
28 |
|
|
|
29 |
|
|
public void testGetSet(){ |
30 |
|
|
AtomicLong ai = new AtomicLong(1); |
31 |
|
|
assertEquals(1,ai.get()); |
32 |
|
|
ai.set(2); |
33 |
|
|
assertEquals(2,ai.get()); |
34 |
|
|
ai.set(-3); |
35 |
|
|
assertEquals(-3,ai.get()); |
36 |
|
|
|
37 |
|
|
} |
38 |
|
|
public void testCompareAndSet(){ |
39 |
|
|
AtomicLong ai = new AtomicLong(1); |
40 |
|
|
assertTrue(ai.compareAndSet(1,2)); |
41 |
|
|
assertTrue(ai.compareAndSet(2,-4)); |
42 |
|
|
assertEquals(-4,ai.get()); |
43 |
|
|
assertFalse(ai.compareAndSet(-5,7)); |
44 |
|
|
assertFalse((7 == ai.get())); |
45 |
|
|
assertTrue(ai.compareAndSet(-4,7)); |
46 |
|
|
assertEquals(7,ai.get()); |
47 |
|
|
} |
48 |
|
|
|
49 |
|
|
public void testWeakCompareAndSet(){ |
50 |
|
|
AtomicLong ai = new AtomicLong(1); |
51 |
|
|
while(!ai.weakCompareAndSet(1,2)); |
52 |
|
|
while(!ai.weakCompareAndSet(2,-4)); |
53 |
|
|
assertEquals(-4,ai.get()); |
54 |
|
|
while(!ai.weakCompareAndSet(-4,7)); |
55 |
|
|
assertEquals(7,ai.get()); |
56 |
|
|
} |
57 |
|
|
|
58 |
|
|
public void testGetAndSet(){ |
59 |
|
|
AtomicLong ai = new AtomicLong(1); |
60 |
|
|
assertEquals(1,ai.getAndSet(0)); |
61 |
|
|
assertEquals(0,ai.getAndSet(-10)); |
62 |
|
|
assertEquals(-10,ai.getAndSet(1)); |
63 |
|
|
} |
64 |
|
|
|
65 |
|
|
public void testGetAndAdd(){ |
66 |
|
|
AtomicLong ai = new AtomicLong(1); |
67 |
|
|
assertEquals(1,ai.getAndAdd(2)); |
68 |
|
|
assertEquals(3,ai.get()); |
69 |
|
|
assertEquals(3,ai.getAndAdd(-4)); |
70 |
|
|
assertEquals(-1,ai.get()); |
71 |
|
|
} |
72 |
|
|
|
73 |
|
|
public void testGetAndDecrement(){ |
74 |
|
|
AtomicLong ai = new AtomicLong(1); |
75 |
|
|
assertEquals(1,ai.getAndDecrement()); |
76 |
|
|
assertEquals(0,ai.getAndDecrement()); |
77 |
|
|
assertEquals(-1,ai.getAndDecrement()); |
78 |
|
|
} |
79 |
|
|
|
80 |
|
|
public void testGetAndIncrement(){ |
81 |
|
|
AtomicLong ai = new AtomicLong(1); |
82 |
|
|
assertEquals(1,ai.getAndIncrement()); |
83 |
|
|
assertEquals(2,ai.get()); |
84 |
|
|
ai.set(-2); |
85 |
|
|
assertEquals(-2,ai.getAndIncrement()); |
86 |
|
|
assertEquals(-1,ai.getAndIncrement()); |
87 |
|
|
assertEquals(0,ai.getAndIncrement()); |
88 |
|
|
assertEquals(1,ai.get()); |
89 |
|
|
} |
90 |
|
|
|
91 |
|
|
public void testAddAndGet(){ |
92 |
|
|
AtomicLong ai = new AtomicLong(1); |
93 |
|
|
assertEquals(3,ai.addAndGet(2)); |
94 |
|
|
assertEquals(3,ai.get()); |
95 |
|
|
assertEquals(-1,ai.addAndGet(-4)); |
96 |
|
|
assertEquals(-1,ai.get()); |
97 |
|
|
} |
98 |
|
|
|
99 |
|
|
public void testDecrementAndGet(){ |
100 |
|
|
AtomicLong ai = new AtomicLong(1); |
101 |
|
|
assertEquals(0,ai.decrementAndGet()); |
102 |
|
|
assertEquals(-1,ai.decrementAndGet()); |
103 |
|
|
assertEquals(-2,ai.decrementAndGet()); |
104 |
|
|
assertEquals(-2,ai.get()); |
105 |
|
|
} |
106 |
|
|
|
107 |
|
|
public void testIncrementAndGet(){ |
108 |
|
|
AtomicLong ai = new AtomicLong(1); |
109 |
|
|
assertEquals(2,ai.incrementAndGet()); |
110 |
|
|
assertEquals(2,ai.get()); |
111 |
|
|
ai.set(-2); |
112 |
|
|
assertEquals(-1,ai.incrementAndGet()); |
113 |
|
|
assertEquals(0,ai.incrementAndGet()); |
114 |
|
|
assertEquals(1,ai.incrementAndGet()); |
115 |
|
|
assertEquals(1,ai.get()); |
116 |
|
|
} |
117 |
|
|
|
118 |
|
|
|
119 |
|
|
} |