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* Pat Fisher, Mike Judd. |
7 |
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*/ |
8 |
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|
9 |
– |
import java.util.concurrent.atomic.*; |
9 |
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import junit.framework.*; |
10 |
< |
import java.util.*; |
10 |
> |
import java.util.concurrent.atomic.AtomicLongFieldUpdater; |
11 |
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|
12 |
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public class AtomicLongFieldUpdaterTest extends JSR166TestCase { |
13 |
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volatile long x = 0; |
21 |
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return new TestSuite(AtomicLongFieldUpdaterTest.class); |
22 |
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} |
23 |
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|
24 |
+ |
AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> updaterFor(String fieldName) { |
25 |
+ |
return AtomicLongFieldUpdater.newUpdater |
26 |
+ |
(AtomicLongFieldUpdaterTest.class, fieldName); |
27 |
+ |
} |
28 |
+ |
|
29 |
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/** |
30 |
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* Construction with non-existent field throws RuntimeException |
31 |
|
*/ |
32 |
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public void testConstructor() { |
33 |
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try { |
34 |
< |
AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> |
31 |
< |
a = AtomicLongFieldUpdater.newUpdater |
32 |
< |
(AtomicLongFieldUpdaterTest.class, "y"); |
34 |
> |
updaterFor("y"); |
35 |
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shouldThrow(); |
36 |
< |
} catch (RuntimeException success) {} |
36 |
> |
} catch (RuntimeException success) { |
37 |
> |
assertTrue(success.getCause() != null); |
38 |
> |
} |
39 |
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} |
40 |
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|
41 |
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/** |
42 |
< |
* construction with field not of given type throws RuntimeException |
42 |
> |
* construction with field not of given type throws IllegalArgumentException |
43 |
|
*/ |
44 |
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public void testConstructor2() { |
45 |
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try { |
46 |
< |
AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> |
43 |
< |
a = AtomicLongFieldUpdater.newUpdater |
44 |
< |
(AtomicLongFieldUpdaterTest.class, "z"); |
46 |
> |
updaterFor("z"); |
47 |
|
shouldThrow(); |
48 |
< |
} catch (RuntimeException success) {} |
48 |
> |
} catch (IllegalArgumentException success) {} |
49 |
|
} |
50 |
|
|
51 |
|
/** |
52 |
< |
* construction with non-volatile field throws RuntimeException |
52 |
> |
* construction with non-volatile field throws IllegalArgumentException |
53 |
|
*/ |
54 |
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public void testConstructor3() { |
55 |
|
try { |
56 |
< |
AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> |
55 |
< |
a = AtomicLongFieldUpdater.newUpdater |
56 |
< |
(AtomicLongFieldUpdaterTest.class, "w"); |
56 |
> |
updaterFor("w"); |
57 |
|
shouldThrow(); |
58 |
< |
} catch (RuntimeException success) {} |
58 |
> |
} catch (IllegalArgumentException success) {} |
59 |
|
} |
60 |
|
|
61 |
|
/** |
63 |
|
*/ |
64 |
|
public void testGetSet() { |
65 |
|
AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a; |
66 |
< |
try { |
67 |
< |
a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x"); |
68 |
< |
} catch (RuntimeException ok) { |
69 |
< |
return; |
70 |
< |
} |
66 |
> |
a = updaterFor("x"); |
67 |
|
x = 1; |
68 |
< |
assertEquals(1,a.get(this)); |
69 |
< |
a.set(this,2); |
70 |
< |
assertEquals(2,a.get(this)); |
71 |
< |
a.set(this,-3); |
72 |
< |
assertEquals(-3,a.get(this)); |
68 |
> |
assertEquals(1, a.get(this)); |
69 |
> |
a.set(this, 2); |
70 |
> |
assertEquals(2, a.get(this)); |
71 |
> |
a.set(this, -3); |
72 |
> |
assertEquals(-3, a.get(this)); |
73 |
|
} |
74 |
|
|
75 |
|
/** |
77 |
|
*/ |
78 |
|
public void testGetLazySet() { |
79 |
|
AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a; |
80 |
< |
try { |
85 |
< |
a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x"); |
86 |
< |
} catch (RuntimeException ok) { |
87 |
< |
return; |
88 |
< |
} |
80 |
> |
a = updaterFor("x"); |
81 |
|
x = 1; |
82 |
< |
assertEquals(1,a.get(this)); |
83 |
< |
a.lazySet(this,2); |
84 |
< |
assertEquals(2,a.get(this)); |
85 |
< |
a.lazySet(this,-3); |
86 |
< |
assertEquals(-3,a.get(this)); |
82 |
> |
assertEquals(1, a.get(this)); |
83 |
> |
a.lazySet(this, 2); |
84 |
> |
assertEquals(2, a.get(this)); |
85 |
> |
a.lazySet(this, -3); |
86 |
> |
assertEquals(-3, a.get(this)); |
87 |
|
} |
88 |
|
|
89 |
|
/** |
91 |
|
*/ |
92 |
|
public void testCompareAndSet() { |
93 |
|
AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a; |
94 |
< |
try { |
103 |
< |
a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x"); |
104 |
< |
} catch (RuntimeException ok) { |
105 |
< |
return; |
106 |
< |
} |
94 |
> |
a = updaterFor("x"); |
95 |
|
x = 1; |
96 |
< |
assertTrue(a.compareAndSet(this,1,2)); |
97 |
< |
assertTrue(a.compareAndSet(this,2,-4)); |
98 |
< |
assertEquals(-4,a.get(this)); |
99 |
< |
assertFalse(a.compareAndSet(this,-5,7)); |
100 |
< |
assertEquals(-4,a.get(this)); |
101 |
< |
assertTrue(a.compareAndSet(this,-4,7)); |
102 |
< |
assertEquals(7,a.get(this)); |
96 |
> |
assertTrue(a.compareAndSet(this, 1, 2)); |
97 |
> |
assertTrue(a.compareAndSet(this, 2, -4)); |
98 |
> |
assertEquals(-4, a.get(this)); |
99 |
> |
assertFalse(a.compareAndSet(this, -5, 7)); |
100 |
> |
assertEquals(-4, a.get(this)); |
101 |
> |
assertTrue(a.compareAndSet(this, -4, 7)); |
102 |
> |
assertEquals(7, a.get(this)); |
103 |
|
} |
104 |
|
|
105 |
|
/** |
108 |
|
*/ |
109 |
|
public void testCompareAndSetInMultipleThreads() throws Exception { |
110 |
|
x = 1; |
111 |
< |
final AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest>a; |
112 |
< |
try { |
125 |
< |
a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x"); |
126 |
< |
} catch (RuntimeException ok) { |
127 |
< |
return; |
128 |
< |
} |
111 |
> |
final AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a; |
112 |
> |
a = updaterFor("x"); |
113 |
|
|
114 |
|
Thread t = new Thread(new CheckedRunnable() { |
115 |
|
public void realRun() { |
121 |
|
assertTrue(a.compareAndSet(this, 1, 2)); |
122 |
|
t.join(LONG_DELAY_MS); |
123 |
|
assertFalse(t.isAlive()); |
124 |
< |
assertEquals(a.get(this), 3); |
124 |
> |
assertEquals(3, a.get(this)); |
125 |
|
} |
126 |
|
|
127 |
|
/** |
130 |
|
*/ |
131 |
|
public void testWeakCompareAndSet() { |
132 |
|
AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a; |
133 |
< |
try { |
150 |
< |
a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x"); |
151 |
< |
} catch (RuntimeException ok) { |
152 |
< |
return; |
153 |
< |
} |
133 |
> |
a = updaterFor("x"); |
134 |
|
x = 1; |
135 |
< |
while (!a.weakCompareAndSet(this,1,2)); |
136 |
< |
while (!a.weakCompareAndSet(this,2,-4)); |
137 |
< |
assertEquals(-4,a.get(this)); |
138 |
< |
while (!a.weakCompareAndSet(this,-4,7)); |
139 |
< |
assertEquals(7,a.get(this)); |
135 |
> |
while (!a.weakCompareAndSet(this, 1, 2)); |
136 |
> |
while (!a.weakCompareAndSet(this, 2, -4)); |
137 |
> |
assertEquals(-4, a.get(this)); |
138 |
> |
while (!a.weakCompareAndSet(this, -4, 7)); |
139 |
> |
assertEquals(7, a.get(this)); |
140 |
|
} |
141 |
|
|
142 |
|
/** |
144 |
|
*/ |
145 |
|
public void testGetAndSet() { |
146 |
|
AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a; |
147 |
< |
try { |
168 |
< |
a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x"); |
169 |
< |
} catch (RuntimeException ok) { |
170 |
< |
return; |
171 |
< |
} |
147 |
> |
a = updaterFor("x"); |
148 |
|
x = 1; |
149 |
< |
assertEquals(1,a.getAndSet(this, 0)); |
150 |
< |
assertEquals(0,a.getAndSet(this,-10)); |
151 |
< |
assertEquals(-10,a.getAndSet(this,1)); |
149 |
> |
assertEquals(1, a.getAndSet(this, 0)); |
150 |
> |
assertEquals(0, a.getAndSet(this, -10)); |
151 |
> |
assertEquals(-10, a.getAndSet(this, 1)); |
152 |
|
} |
153 |
|
|
154 |
|
/** |
156 |
|
*/ |
157 |
|
public void testGetAndAdd() { |
158 |
|
AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a; |
159 |
< |
try { |
184 |
< |
a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x"); |
185 |
< |
} catch (RuntimeException ok) { |
186 |
< |
return; |
187 |
< |
} |
159 |
> |
a = updaterFor("x"); |
160 |
|
x = 1; |
161 |
< |
assertEquals(1,a.getAndAdd(this,2)); |
162 |
< |
assertEquals(3,a.get(this)); |
163 |
< |
assertEquals(3,a.getAndAdd(this,-4)); |
164 |
< |
assertEquals(-1,a.get(this)); |
161 |
> |
assertEquals(1, a.getAndAdd(this, 2)); |
162 |
> |
assertEquals(3, a.get(this)); |
163 |
> |
assertEquals(3, a.getAndAdd(this, -4)); |
164 |
> |
assertEquals(-1, a.get(this)); |
165 |
|
} |
166 |
|
|
167 |
|
/** |
169 |
|
*/ |
170 |
|
public void testGetAndDecrement() { |
171 |
|
AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a; |
172 |
< |
try { |
201 |
< |
a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x"); |
202 |
< |
} catch (RuntimeException ok) { |
203 |
< |
return; |
204 |
< |
} |
172 |
> |
a = updaterFor("x"); |
173 |
|
x = 1; |
174 |
< |
assertEquals(1,a.getAndDecrement(this)); |
175 |
< |
assertEquals(0,a.getAndDecrement(this)); |
176 |
< |
assertEquals(-1,a.getAndDecrement(this)); |
174 |
> |
assertEquals(1, a.getAndDecrement(this)); |
175 |
> |
assertEquals(0, a.getAndDecrement(this)); |
176 |
> |
assertEquals(-1, a.getAndDecrement(this)); |
177 |
|
} |
178 |
|
|
179 |
|
/** |
181 |
|
*/ |
182 |
|
public void testGetAndIncrement() { |
183 |
|
AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a; |
184 |
< |
try { |
217 |
< |
a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x"); |
218 |
< |
} catch (RuntimeException ok) { |
219 |
< |
return; |
220 |
< |
} |
184 |
> |
a = updaterFor("x"); |
185 |
|
x = 1; |
186 |
< |
assertEquals(1,a.getAndIncrement(this)); |
187 |
< |
assertEquals(2,a.get(this)); |
188 |
< |
a.set(this,-2); |
189 |
< |
assertEquals(-2,a.getAndIncrement(this)); |
190 |
< |
assertEquals(-1,a.getAndIncrement(this)); |
191 |
< |
assertEquals(0,a.getAndIncrement(this)); |
192 |
< |
assertEquals(1,a.get(this)); |
186 |
> |
assertEquals(1, a.getAndIncrement(this)); |
187 |
> |
assertEquals(2, a.get(this)); |
188 |
> |
a.set(this, -2); |
189 |
> |
assertEquals(-2, a.getAndIncrement(this)); |
190 |
> |
assertEquals(-1, a.getAndIncrement(this)); |
191 |
> |
assertEquals(0, a.getAndIncrement(this)); |
192 |
> |
assertEquals(1, a.get(this)); |
193 |
|
} |
194 |
|
|
195 |
|
/** |
197 |
|
*/ |
198 |
|
public void testAddAndGet() { |
199 |
|
AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a; |
200 |
< |
try { |
237 |
< |
a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x"); |
238 |
< |
} catch (RuntimeException ok) { |
239 |
< |
return; |
240 |
< |
} |
200 |
> |
a = updaterFor("x"); |
201 |
|
x = 1; |
202 |
< |
assertEquals(3,a.addAndGet(this,2)); |
203 |
< |
assertEquals(3,a.get(this)); |
204 |
< |
assertEquals(-1,a.addAndGet(this,-4)); |
205 |
< |
assertEquals(-1,a.get(this)); |
202 |
> |
assertEquals(3, a.addAndGet(this, 2)); |
203 |
> |
assertEquals(3, a.get(this)); |
204 |
> |
assertEquals(-1, a.addAndGet(this, -4)); |
205 |
> |
assertEquals(-1, a.get(this)); |
206 |
|
} |
207 |
|
|
208 |
|
/** |
210 |
|
*/ |
211 |
|
public void testDecrementAndGet() { |
212 |
|
AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a; |
213 |
< |
try { |
254 |
< |
a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x"); |
255 |
< |
} catch (RuntimeException ok) { |
256 |
< |
return; |
257 |
< |
} |
213 |
> |
a = updaterFor("x"); |
214 |
|
x = 1; |
215 |
< |
assertEquals(0,a.decrementAndGet(this)); |
216 |
< |
assertEquals(-1,a.decrementAndGet(this)); |
217 |
< |
assertEquals(-2,a.decrementAndGet(this)); |
218 |
< |
assertEquals(-2,a.get(this)); |
215 |
> |
assertEquals(0, a.decrementAndGet(this)); |
216 |
> |
assertEquals(-1, a.decrementAndGet(this)); |
217 |
> |
assertEquals(-2, a.decrementAndGet(this)); |
218 |
> |
assertEquals(-2, a.get(this)); |
219 |
|
} |
220 |
|
|
221 |
|
/** |
223 |
|
*/ |
224 |
|
public void testIncrementAndGet() { |
225 |
|
AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a; |
226 |
< |
try { |
271 |
< |
a = AtomicLongFieldUpdater.newUpdater(AtomicLongFieldUpdaterTest.class, "x"); |
272 |
< |
} catch (RuntimeException ok) { |
273 |
< |
return; |
274 |
< |
} |
226 |
> |
a = updaterFor("x"); |
227 |
|
x = 1; |
228 |
< |
assertEquals(2,a.incrementAndGet(this)); |
229 |
< |
assertEquals(2,a.get(this)); |
230 |
< |
a.set(this,-2); |
231 |
< |
assertEquals(-1,a.incrementAndGet(this)); |
232 |
< |
assertEquals(0,a.incrementAndGet(this)); |
233 |
< |
assertEquals(1,a.incrementAndGet(this)); |
234 |
< |
assertEquals(1,a.get(this)); |
228 |
> |
assertEquals(2, a.incrementAndGet(this)); |
229 |
> |
assertEquals(2, a.get(this)); |
230 |
> |
a.set(this, -2); |
231 |
> |
assertEquals(-1, a.incrementAndGet(this)); |
232 |
> |
assertEquals(0, a.incrementAndGet(this)); |
233 |
> |
assertEquals(1, a.incrementAndGet(this)); |
234 |
> |
assertEquals(1, a.get(this)); |
235 |
|
} |
236 |
|
|
237 |
|
} |