18 |
|
return new TestSuite(AtomicLongTest.class); |
19 |
|
} |
20 |
|
|
21 |
+ |
final long[] VALUES = { |
22 |
+ |
Long.MIN_VALUE, |
23 |
+ |
Integer.MIN_VALUE, -1, 0, 1, 42, Integer.MAX_VALUE, |
24 |
+ |
Long.MAX_VALUE, |
25 |
+ |
}; |
26 |
+ |
|
27 |
|
/** |
28 |
|
* constructor initializes to given value |
29 |
|
*/ |
30 |
|
public void testConstructor() { |
31 |
|
AtomicLong ai = new AtomicLong(1); |
32 |
< |
assertEquals(1,ai.get()); |
32 |
> |
assertEquals(1,ai.get()); |
33 |
|
} |
34 |
|
|
35 |
|
/** |
37 |
|
*/ |
38 |
|
public void testConstructor2() { |
39 |
|
AtomicLong ai = new AtomicLong(); |
40 |
< |
assertEquals(0,ai.get()); |
40 |
> |
assertEquals(0,ai.get()); |
41 |
|
} |
42 |
|
|
43 |
|
/** |
45 |
|
*/ |
46 |
|
public void testGetSet() { |
47 |
|
AtomicLong ai = new AtomicLong(1); |
48 |
< |
assertEquals(1,ai.get()); |
49 |
< |
ai.set(2); |
50 |
< |
assertEquals(2,ai.get()); |
51 |
< |
ai.set(-3); |
52 |
< |
assertEquals(-3,ai.get()); |
47 |
< |
|
48 |
> |
assertEquals(1,ai.get()); |
49 |
> |
ai.set(2); |
50 |
> |
assertEquals(2,ai.get()); |
51 |
> |
ai.set(-3); |
52 |
> |
assertEquals(-3,ai.get()); |
53 |
|
} |
54 |
|
|
55 |
|
/** |
57 |
|
*/ |
58 |
|
public void testGetLazySet() { |
59 |
|
AtomicLong ai = new AtomicLong(1); |
60 |
< |
assertEquals(1,ai.get()); |
61 |
< |
ai.lazySet(2); |
62 |
< |
assertEquals(2,ai.get()); |
63 |
< |
ai.lazySet(-3); |
64 |
< |
assertEquals(-3,ai.get()); |
60 |
< |
|
60 |
> |
assertEquals(1,ai.get()); |
61 |
> |
ai.lazySet(2); |
62 |
> |
assertEquals(2,ai.get()); |
63 |
> |
ai.lazySet(-3); |
64 |
> |
assertEquals(-3,ai.get()); |
65 |
|
} |
66 |
|
|
67 |
|
/** |
69 |
|
*/ |
70 |
|
public void testCompareAndSet() { |
71 |
|
AtomicLong ai = new AtomicLong(1); |
72 |
< |
assertTrue(ai.compareAndSet(1,2)); |
73 |
< |
assertTrue(ai.compareAndSet(2,-4)); |
74 |
< |
assertEquals(-4,ai.get()); |
75 |
< |
assertFalse(ai.compareAndSet(-5,7)); |
76 |
< |
assertFalse((7 == ai.get())); |
77 |
< |
assertTrue(ai.compareAndSet(-4,7)); |
78 |
< |
assertEquals(7,ai.get()); |
72 |
> |
assertTrue(ai.compareAndSet(1,2)); |
73 |
> |
assertTrue(ai.compareAndSet(2,-4)); |
74 |
> |
assertEquals(-4,ai.get()); |
75 |
> |
assertFalse(ai.compareAndSet(-5,7)); |
76 |
> |
assertEquals(-4,ai.get()); |
77 |
> |
assertTrue(ai.compareAndSet(-4,7)); |
78 |
> |
assertEquals(7,ai.get()); |
79 |
|
} |
80 |
|
|
81 |
|
/** |
82 |
|
* compareAndSet in one thread enables another waiting for value |
83 |
|
* to succeed |
84 |
|
*/ |
85 |
< |
public void testCompareAndSetInMultipleThreads() { |
85 |
> |
public void testCompareAndSetInMultipleThreads() throws Exception { |
86 |
|
final AtomicLong ai = new AtomicLong(1); |
87 |
< |
Thread t = new Thread(new Runnable() { |
88 |
< |
public void run() { |
89 |
< |
while (!ai.compareAndSet(2, 3)) Thread.yield(); |
90 |
< |
}}); |
91 |
< |
try { |
92 |
< |
t.start(); |
93 |
< |
assertTrue(ai.compareAndSet(1, 2)); |
94 |
< |
t.join(LONG_DELAY_MS); |
95 |
< |
assertFalse(t.isAlive()); |
96 |
< |
assertEquals(ai.get(), 3); |
97 |
< |
} |
94 |
< |
catch (Exception e) { |
95 |
< |
unexpectedException(); |
96 |
< |
} |
87 |
> |
Thread t = new Thread(new CheckedRunnable() { |
88 |
> |
public void realRun() { |
89 |
> |
while (!ai.compareAndSet(2, 3)) |
90 |
> |
Thread.yield(); |
91 |
> |
}}); |
92 |
> |
|
93 |
> |
t.start(); |
94 |
> |
assertTrue(ai.compareAndSet(1, 2)); |
95 |
> |
t.join(LONG_DELAY_MS); |
96 |
> |
assertFalse(t.isAlive()); |
97 |
> |
assertEquals(ai.get(), 3); |
98 |
|
} |
99 |
|
|
100 |
|
/** |
103 |
|
*/ |
104 |
|
public void testWeakCompareAndSet() { |
105 |
|
AtomicLong ai = new AtomicLong(1); |
106 |
< |
while (!ai.weakCompareAndSet(1,2)); |
107 |
< |
while (!ai.weakCompareAndSet(2,-4)); |
108 |
< |
assertEquals(-4,ai.get()); |
109 |
< |
while (!ai.weakCompareAndSet(-4,7)); |
110 |
< |
assertEquals(7,ai.get()); |
106 |
> |
while (!ai.weakCompareAndSet(1,2)); |
107 |
> |
while (!ai.weakCompareAndSet(2,-4)); |
108 |
> |
assertEquals(-4,ai.get()); |
109 |
> |
while (!ai.weakCompareAndSet(-4,7)); |
110 |
> |
assertEquals(7,ai.get()); |
111 |
|
} |
112 |
|
|
113 |
|
/** |
115 |
|
*/ |
116 |
|
public void testGetAndSet() { |
117 |
|
AtomicLong ai = new AtomicLong(1); |
118 |
< |
assertEquals(1,ai.getAndSet(0)); |
119 |
< |
assertEquals(0,ai.getAndSet(-10)); |
120 |
< |
assertEquals(-10,ai.getAndSet(1)); |
118 |
> |
assertEquals(1,ai.getAndSet(0)); |
119 |
> |
assertEquals(0,ai.getAndSet(-10)); |
120 |
> |
assertEquals(-10,ai.getAndSet(1)); |
121 |
|
} |
122 |
|
|
123 |
|
/** |
125 |
|
*/ |
126 |
|
public void testGetAndAdd() { |
127 |
|
AtomicLong ai = new AtomicLong(1); |
128 |
< |
assertEquals(1,ai.getAndAdd(2)); |
129 |
< |
assertEquals(3,ai.get()); |
130 |
< |
assertEquals(3,ai.getAndAdd(-4)); |
131 |
< |
assertEquals(-1,ai.get()); |
128 |
> |
assertEquals(1,ai.getAndAdd(2)); |
129 |
> |
assertEquals(3,ai.get()); |
130 |
> |
assertEquals(3,ai.getAndAdd(-4)); |
131 |
> |
assertEquals(-1,ai.get()); |
132 |
|
} |
133 |
|
|
134 |
|
/** |
136 |
|
*/ |
137 |
|
public void testGetAndDecrement() { |
138 |
|
AtomicLong ai = new AtomicLong(1); |
139 |
< |
assertEquals(1,ai.getAndDecrement()); |
140 |
< |
assertEquals(0,ai.getAndDecrement()); |
141 |
< |
assertEquals(-1,ai.getAndDecrement()); |
139 |
> |
assertEquals(1,ai.getAndDecrement()); |
140 |
> |
assertEquals(0,ai.getAndDecrement()); |
141 |
> |
assertEquals(-1,ai.getAndDecrement()); |
142 |
|
} |
143 |
|
|
144 |
|
/** |
146 |
|
*/ |
147 |
|
public void testGetAndIncrement() { |
148 |
|
AtomicLong ai = new AtomicLong(1); |
149 |
< |
assertEquals(1,ai.getAndIncrement()); |
150 |
< |
assertEquals(2,ai.get()); |
151 |
< |
ai.set(-2); |
152 |
< |
assertEquals(-2,ai.getAndIncrement()); |
153 |
< |
assertEquals(-1,ai.getAndIncrement()); |
154 |
< |
assertEquals(0,ai.getAndIncrement()); |
155 |
< |
assertEquals(1,ai.get()); |
149 |
> |
assertEquals(1,ai.getAndIncrement()); |
150 |
> |
assertEquals(2,ai.get()); |
151 |
> |
ai.set(-2); |
152 |
> |
assertEquals(-2,ai.getAndIncrement()); |
153 |
> |
assertEquals(-1,ai.getAndIncrement()); |
154 |
> |
assertEquals(0,ai.getAndIncrement()); |
155 |
> |
assertEquals(1,ai.get()); |
156 |
|
} |
157 |
|
|
158 |
|
/** |
160 |
|
*/ |
161 |
|
public void testAddAndGet() { |
162 |
|
AtomicLong ai = new AtomicLong(1); |
163 |
< |
assertEquals(3,ai.addAndGet(2)); |
164 |
< |
assertEquals(3,ai.get()); |
165 |
< |
assertEquals(-1,ai.addAndGet(-4)); |
166 |
< |
assertEquals(-1,ai.get()); |
163 |
> |
assertEquals(3,ai.addAndGet(2)); |
164 |
> |
assertEquals(3,ai.get()); |
165 |
> |
assertEquals(-1,ai.addAndGet(-4)); |
166 |
> |
assertEquals(-1,ai.get()); |
167 |
|
} |
168 |
|
|
169 |
|
/** |
171 |
|
*/ |
172 |
|
public void testDecrementAndGet() { |
173 |
|
AtomicLong ai = new AtomicLong(1); |
174 |
< |
assertEquals(0,ai.decrementAndGet()); |
175 |
< |
assertEquals(-1,ai.decrementAndGet()); |
176 |
< |
assertEquals(-2,ai.decrementAndGet()); |
177 |
< |
assertEquals(-2,ai.get()); |
174 |
> |
assertEquals(0,ai.decrementAndGet()); |
175 |
> |
assertEquals(-1,ai.decrementAndGet()); |
176 |
> |
assertEquals(-2,ai.decrementAndGet()); |
177 |
> |
assertEquals(-2,ai.get()); |
178 |
|
} |
179 |
|
|
180 |
|
/** |
182 |
|
*/ |
183 |
|
public void testIncrementAndGet() { |
184 |
|
AtomicLong ai = new AtomicLong(1); |
185 |
< |
assertEquals(2,ai.incrementAndGet()); |
186 |
< |
assertEquals(2,ai.get()); |
187 |
< |
ai.set(-2); |
188 |
< |
assertEquals(-1,ai.incrementAndGet()); |
189 |
< |
assertEquals(0,ai.incrementAndGet()); |
190 |
< |
assertEquals(1,ai.incrementAndGet()); |
191 |
< |
assertEquals(1,ai.get()); |
185 |
> |
assertEquals(2,ai.incrementAndGet()); |
186 |
> |
assertEquals(2,ai.get()); |
187 |
> |
ai.set(-2); |
188 |
> |
assertEquals(-1,ai.incrementAndGet()); |
189 |
> |
assertEquals(0,ai.incrementAndGet()); |
190 |
> |
assertEquals(1,ai.incrementAndGet()); |
191 |
> |
assertEquals(1,ai.get()); |
192 |
|
} |
193 |
|
|
194 |
|
/** |
195 |
|
* a deserialized serialized atomic holds same value |
196 |
|
*/ |
197 |
< |
public void testSerialization() { |
197 |
> |
public void testSerialization() throws Exception { |
198 |
|
AtomicLong l = new AtomicLong(); |
199 |
|
|
200 |
< |
try { |
201 |
< |
l.set(-22); |
202 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
203 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
204 |
< |
out.writeObject(l); |
205 |
< |
out.close(); |
206 |
< |
|
207 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
208 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
209 |
< |
AtomicLong r = (AtomicLong) in.readObject(); |
209 |
< |
assertEquals(l.get(), r.get()); |
210 |
< |
} catch (Exception e) { |
211 |
< |
unexpectedException(); |
212 |
< |
} |
200 |
> |
l.set(-22); |
201 |
> |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
202 |
> |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
203 |
> |
out.writeObject(l); |
204 |
> |
out.close(); |
205 |
> |
|
206 |
> |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
207 |
> |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
208 |
> |
AtomicLong r = (AtomicLong) in.readObject(); |
209 |
> |
assertEquals(l.get(), r.get()); |
210 |
|
} |
211 |
|
|
212 |
|
/** |
214 |
|
*/ |
215 |
|
public void testToString() { |
216 |
|
AtomicLong ai = new AtomicLong(); |
217 |
< |
for (long i = -12; i < 6; ++i) { |
217 |
> |
assertEquals("0", ai.toString()); |
218 |
> |
for (long i : VALUES) { |
219 |
|
ai.set(i); |
220 |
|
assertEquals(ai.toString(), Long.toString(i)); |
221 |
|
} |
222 |
|
} |
223 |
|
|
224 |
|
/** |
225 |
+ |
* intValue returns current value. |
226 |
+ |
*/ |
227 |
+ |
public void testIntValue() { |
228 |
+ |
AtomicLong ai = new AtomicLong(); |
229 |
+ |
assertEquals(0, ai.intValue()); |
230 |
+ |
for (long x : VALUES) { |
231 |
+ |
ai.set(x); |
232 |
+ |
assertEquals((int)x, ai.intValue()); |
233 |
+ |
} |
234 |
+ |
} |
235 |
+ |
|
236 |
+ |
/** |
237 |
|
* longValue returns current value. |
238 |
|
*/ |
239 |
|
public void testLongValue() { |
240 |
|
AtomicLong ai = new AtomicLong(); |
241 |
< |
for (int i = -12; i < 6; ++i) { |
242 |
< |
ai.set(i); |
243 |
< |
assertEquals((long)i, ai.longValue()); |
241 |
> |
assertEquals(0L, ai.longValue()); |
242 |
> |
for (long x : VALUES) { |
243 |
> |
ai.set(x); |
244 |
> |
assertEquals((long)x, ai.longValue()); |
245 |
|
} |
246 |
|
} |
247 |
|
|
250 |
|
*/ |
251 |
|
public void testFloatValue() { |
252 |
|
AtomicLong ai = new AtomicLong(); |
253 |
< |
for (int i = -12; i < 6; ++i) { |
254 |
< |
ai.set(i); |
255 |
< |
assertEquals((float)i, ai.floatValue()); |
253 |
> |
assertEquals(0.0f, ai.floatValue()); |
254 |
> |
for (long x : VALUES) { |
255 |
> |
ai.set(x); |
256 |
> |
assertEquals((float)x, ai.floatValue()); |
257 |
|
} |
258 |
|
} |
259 |
|
|
262 |
|
*/ |
263 |
|
public void testDoubleValue() { |
264 |
|
AtomicLong ai = new AtomicLong(); |
265 |
< |
for (int i = -12; i < 6; ++i) { |
266 |
< |
ai.set(i); |
267 |
< |
assertEquals((double)i, ai.doubleValue()); |
265 |
> |
assertEquals(0.0d, ai.doubleValue()); |
266 |
> |
for (long x : VALUES) { |
267 |
> |
ai.set(x); |
268 |
> |
assertEquals((double)x, ai.doubleValue()); |
269 |
|
} |
270 |
|
} |
271 |
|
|
259 |
– |
|
272 |
|
} |