23 |
|
*/ |
24 |
|
public void testConstructor() { |
25 |
|
AtomicLong ai = new AtomicLong(1); |
26 |
< |
assertEquals(1,ai.get()); |
26 |
> |
assertEquals(1,ai.get()); |
27 |
|
} |
28 |
|
|
29 |
|
/** |
31 |
|
*/ |
32 |
|
public void testConstructor2() { |
33 |
|
AtomicLong ai = new AtomicLong(); |
34 |
< |
assertEquals(0,ai.get()); |
34 |
> |
assertEquals(0,ai.get()); |
35 |
|
} |
36 |
|
|
37 |
|
/** |
39 |
|
*/ |
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()); |
42 |
> |
assertEquals(1,ai.get()); |
43 |
> |
ai.set(2); |
44 |
> |
assertEquals(2,ai.get()); |
45 |
> |
ai.set(-3); |
46 |
> |
assertEquals(-3,ai.get()); |
47 |
|
|
48 |
|
} |
49 |
|
|
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()); |
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 |
|
|
65 |
|
*/ |
66 |
|
public void testCompareAndSet() { |
67 |
|
AtomicLong ai = new AtomicLong(1); |
68 |
< |
assertTrue(ai.compareAndSet(1,2)); |
69 |
< |
assertTrue(ai.compareAndSet(2,-4)); |
70 |
< |
assertEquals(-4,ai.get()); |
71 |
< |
assertFalse(ai.compareAndSet(-5,7)); |
72 |
< |
assertFalse((7 == ai.get())); |
73 |
< |
assertTrue(ai.compareAndSet(-4,7)); |
74 |
< |
assertEquals(7,ai.get()); |
68 |
> |
assertTrue(ai.compareAndSet(1,2)); |
69 |
> |
assertTrue(ai.compareAndSet(2,-4)); |
70 |
> |
assertEquals(-4,ai.get()); |
71 |
> |
assertFalse(ai.compareAndSet(-5,7)); |
72 |
> |
assertFalse((7 == ai.get())); |
73 |
> |
assertTrue(ai.compareAndSet(-4,7)); |
74 |
> |
assertEquals(7,ai.get()); |
75 |
|
} |
76 |
|
|
77 |
|
/** |
78 |
|
* compareAndSet in one thread enables another waiting for value |
79 |
|
* to succeed |
80 |
|
*/ |
81 |
< |
public void testCompareAndSetInMultipleThreads() { |
81 |
> |
public void testCompareAndSetInMultipleThreads() throws Exception { |
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(); |
86 |
< |
}}); |
87 |
< |
try { |
88 |
< |
t.start(); |
89 |
< |
assertTrue(ai.compareAndSet(1, 2)); |
90 |
< |
t.join(LONG_DELAY_MS); |
91 |
< |
assertFalse(t.isAlive()); |
92 |
< |
assertEquals(ai.get(), 3); |
93 |
< |
} |
94 |
< |
catch (Exception e) { |
95 |
< |
unexpectedException(); |
96 |
< |
} |
83 |
> |
Thread t = new Thread(new CheckedRunnable() { |
84 |
> |
public void realRun() { |
85 |
> |
while (!ai.compareAndSet(2, 3)) |
86 |
> |
Thread.yield(); |
87 |
> |
}}); |
88 |
> |
|
89 |
> |
t.start(); |
90 |
> |
assertTrue(ai.compareAndSet(1, 2)); |
91 |
> |
t.join(LONG_DELAY_MS); |
92 |
> |
assertFalse(t.isAlive()); |
93 |
> |
assertEquals(ai.get(), 3); |
94 |
|
} |
95 |
|
|
96 |
|
/** |
99 |
|
*/ |
100 |
|
public void testWeakCompareAndSet() { |
101 |
|
AtomicLong ai = new AtomicLong(1); |
102 |
< |
while (!ai.weakCompareAndSet(1,2)); |
103 |
< |
while (!ai.weakCompareAndSet(2,-4)); |
104 |
< |
assertEquals(-4,ai.get()); |
105 |
< |
while (!ai.weakCompareAndSet(-4,7)); |
106 |
< |
assertEquals(7,ai.get()); |
102 |
> |
while (!ai.weakCompareAndSet(1,2)); |
103 |
> |
while (!ai.weakCompareAndSet(2,-4)); |
104 |
> |
assertEquals(-4,ai.get()); |
105 |
> |
while (!ai.weakCompareAndSet(-4,7)); |
106 |
> |
assertEquals(7,ai.get()); |
107 |
|
} |
108 |
|
|
109 |
|
/** |
111 |
|
*/ |
112 |
|
public void testGetAndSet() { |
113 |
|
AtomicLong ai = new AtomicLong(1); |
114 |
< |
assertEquals(1,ai.getAndSet(0)); |
115 |
< |
assertEquals(0,ai.getAndSet(-10)); |
116 |
< |
assertEquals(-10,ai.getAndSet(1)); |
114 |
> |
assertEquals(1,ai.getAndSet(0)); |
115 |
> |
assertEquals(0,ai.getAndSet(-10)); |
116 |
> |
assertEquals(-10,ai.getAndSet(1)); |
117 |
|
} |
118 |
|
|
119 |
|
/** |
121 |
|
*/ |
122 |
|
public void testGetAndAdd() { |
123 |
|
AtomicLong ai = new AtomicLong(1); |
124 |
< |
assertEquals(1,ai.getAndAdd(2)); |
125 |
< |
assertEquals(3,ai.get()); |
126 |
< |
assertEquals(3,ai.getAndAdd(-4)); |
127 |
< |
assertEquals(-1,ai.get()); |
124 |
> |
assertEquals(1,ai.getAndAdd(2)); |
125 |
> |
assertEquals(3,ai.get()); |
126 |
> |
assertEquals(3,ai.getAndAdd(-4)); |
127 |
> |
assertEquals(-1,ai.get()); |
128 |
|
} |
129 |
|
|
130 |
|
/** |
132 |
|
*/ |
133 |
|
public void testGetAndDecrement() { |
134 |
|
AtomicLong ai = new AtomicLong(1); |
135 |
< |
assertEquals(1,ai.getAndDecrement()); |
136 |
< |
assertEquals(0,ai.getAndDecrement()); |
137 |
< |
assertEquals(-1,ai.getAndDecrement()); |
135 |
> |
assertEquals(1,ai.getAndDecrement()); |
136 |
> |
assertEquals(0,ai.getAndDecrement()); |
137 |
> |
assertEquals(-1,ai.getAndDecrement()); |
138 |
|
} |
139 |
|
|
140 |
|
/** |
142 |
|
*/ |
143 |
|
public void testGetAndIncrement() { |
144 |
|
AtomicLong ai = new AtomicLong(1); |
145 |
< |
assertEquals(1,ai.getAndIncrement()); |
146 |
< |
assertEquals(2,ai.get()); |
147 |
< |
ai.set(-2); |
148 |
< |
assertEquals(-2,ai.getAndIncrement()); |
149 |
< |
assertEquals(-1,ai.getAndIncrement()); |
150 |
< |
assertEquals(0,ai.getAndIncrement()); |
151 |
< |
assertEquals(1,ai.get()); |
145 |
> |
assertEquals(1,ai.getAndIncrement()); |
146 |
> |
assertEquals(2,ai.get()); |
147 |
> |
ai.set(-2); |
148 |
> |
assertEquals(-2,ai.getAndIncrement()); |
149 |
> |
assertEquals(-1,ai.getAndIncrement()); |
150 |
> |
assertEquals(0,ai.getAndIncrement()); |
151 |
> |
assertEquals(1,ai.get()); |
152 |
|
} |
153 |
|
|
154 |
|
/** |
156 |
|
*/ |
157 |
|
public void testAddAndGet() { |
158 |
|
AtomicLong ai = new AtomicLong(1); |
159 |
< |
assertEquals(3,ai.addAndGet(2)); |
160 |
< |
assertEquals(3,ai.get()); |
161 |
< |
assertEquals(-1,ai.addAndGet(-4)); |
162 |
< |
assertEquals(-1,ai.get()); |
159 |
> |
assertEquals(3,ai.addAndGet(2)); |
160 |
> |
assertEquals(3,ai.get()); |
161 |
> |
assertEquals(-1,ai.addAndGet(-4)); |
162 |
> |
assertEquals(-1,ai.get()); |
163 |
|
} |
164 |
|
|
165 |
|
/** |
167 |
|
*/ |
168 |
|
public void testDecrementAndGet() { |
169 |
|
AtomicLong ai = new AtomicLong(1); |
170 |
< |
assertEquals(0,ai.decrementAndGet()); |
171 |
< |
assertEquals(-1,ai.decrementAndGet()); |
172 |
< |
assertEquals(-2,ai.decrementAndGet()); |
173 |
< |
assertEquals(-2,ai.get()); |
170 |
> |
assertEquals(0,ai.decrementAndGet()); |
171 |
> |
assertEquals(-1,ai.decrementAndGet()); |
172 |
> |
assertEquals(-2,ai.decrementAndGet()); |
173 |
> |
assertEquals(-2,ai.get()); |
174 |
|
} |
175 |
|
|
176 |
|
/** |
178 |
|
*/ |
179 |
|
public void testIncrementAndGet() { |
180 |
|
AtomicLong ai = new AtomicLong(1); |
181 |
< |
assertEquals(2,ai.incrementAndGet()); |
182 |
< |
assertEquals(2,ai.get()); |
183 |
< |
ai.set(-2); |
184 |
< |
assertEquals(-1,ai.incrementAndGet()); |
185 |
< |
assertEquals(0,ai.incrementAndGet()); |
186 |
< |
assertEquals(1,ai.incrementAndGet()); |
187 |
< |
assertEquals(1,ai.get()); |
181 |
> |
assertEquals(2,ai.incrementAndGet()); |
182 |
> |
assertEquals(2,ai.get()); |
183 |
> |
ai.set(-2); |
184 |
> |
assertEquals(-1,ai.incrementAndGet()); |
185 |
> |
assertEquals(0,ai.incrementAndGet()); |
186 |
> |
assertEquals(1,ai.incrementAndGet()); |
187 |
> |
assertEquals(1,ai.get()); |
188 |
|
} |
189 |
|
|
190 |
|
/** |
191 |
|
* a deserialized serialized atomic holds same value |
192 |
|
*/ |
193 |
< |
public void testSerialization() { |
193 |
> |
public void testSerialization() throws Exception { |
194 |
|
AtomicLong l = new AtomicLong(); |
195 |
|
|
196 |
< |
try { |
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 |
< |
|
203 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
204 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
205 |
< |
AtomicLong r = (AtomicLong) in.readObject(); |
209 |
< |
assertEquals(l.get(), r.get()); |
210 |
< |
} catch (Exception e) { |
211 |
< |
unexpectedException(); |
212 |
< |
} |
196 |
> |
l.set(-22); |
197 |
> |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
198 |
> |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
199 |
> |
out.writeObject(l); |
200 |
> |
out.close(); |
201 |
> |
|
202 |
> |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
203 |
> |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
204 |
> |
AtomicLong r = (AtomicLong) in.readObject(); |
205 |
> |
assertEquals(l.get(), r.get()); |
206 |
|
} |
207 |
|
|
208 |
|
/** |