24 |
|
* constructor creates array of given size with all elements null |
25 |
|
*/ |
26 |
|
public void testConstructor() { |
27 |
< |
AtomicReferenceArray<Integer> aa = new AtomicReferenceArray<Integer>(SIZE); |
27 |
> |
AtomicReferenceArray<Integer> aa = new AtomicReferenceArray<>(SIZE); |
28 |
|
for (int i = 0; i < SIZE; i++) { |
29 |
|
assertNull(aa.get(i)); |
30 |
|
} |
45 |
|
* constructor with array is of same size and has all elements |
46 |
|
*/ |
47 |
|
public void testConstructor2() { |
48 |
< |
Integer[] a = { two, one, three, four, seven }; |
49 |
< |
AtomicReferenceArray<Integer> aa = new AtomicReferenceArray<Integer>(a); |
48 |
> |
Item[] a = { two, one, three, four, seven }; |
49 |
> |
AtomicReferenceArray<Item> aa = new AtomicReferenceArray<>(a); |
50 |
|
assertEquals(a.length, aa.length()); |
51 |
|
for (int i = 0; i < a.length; i++) |
52 |
|
assertEquals(a[i], aa.get(i)); |
56 |
|
* Initialize AtomicReferenceArray<Class> with SubClass[] |
57 |
|
*/ |
58 |
|
public void testConstructorSubClassArray() { |
59 |
< |
Integer[] a = { two, one, three, four, seven }; |
60 |
< |
AtomicReferenceArray<Number> aa = new AtomicReferenceArray<Number>(a); |
59 |
> |
Item[] a = { two, one, three, four, seven }; |
60 |
> |
AtomicReferenceArray<Number> aa = new AtomicReferenceArray<>(a); |
61 |
|
assertEquals(a.length, aa.length()); |
62 |
|
for (int i = 0; i < a.length; i++) { |
63 |
|
assertSame(a[i], aa.get(i)); |
70 |
|
/** |
71 |
|
* get and set for out of bound indices throw IndexOutOfBoundsException |
72 |
|
*/ |
73 |
+ |
@SuppressWarnings("deprecation") |
74 |
|
public void testIndexing() { |
75 |
< |
AtomicReferenceArray<Integer> aa = new AtomicReferenceArray<Integer>(SIZE); |
75 |
> |
AtomicReferenceArray<Integer> aa = new AtomicReferenceArray<>(SIZE); |
76 |
|
for (int index : new int[] { -1, SIZE }) { |
77 |
|
try { |
78 |
|
aa.get(index); |
94 |
|
aa.weakCompareAndSet(index, null, null); |
95 |
|
shouldThrow(); |
96 |
|
} catch (IndexOutOfBoundsException success) {} |
96 |
– |
try { |
97 |
– |
aa.getPlain(index); |
98 |
– |
shouldThrow(); |
99 |
– |
} catch (IndexOutOfBoundsException success) {} |
100 |
– |
try { |
101 |
– |
aa.getOpaque(index); |
102 |
– |
shouldThrow(); |
103 |
– |
} catch (IndexOutOfBoundsException success) {} |
104 |
– |
try { |
105 |
– |
aa.getAcquire(index); |
106 |
– |
shouldThrow(); |
107 |
– |
} catch (IndexOutOfBoundsException success) {} |
108 |
– |
try { |
109 |
– |
aa.setPlain(index, null); |
110 |
– |
shouldThrow(); |
111 |
– |
} catch (IndexOutOfBoundsException success) {} |
112 |
– |
try { |
113 |
– |
aa.setOpaque(index, null); |
114 |
– |
shouldThrow(); |
115 |
– |
} catch (IndexOutOfBoundsException success) {} |
116 |
– |
try { |
117 |
– |
aa.setRelease(index, null); |
118 |
– |
shouldThrow(); |
119 |
– |
} catch (IndexOutOfBoundsException success) {} |
120 |
– |
try { |
121 |
– |
aa.compareAndExchange(index, null, null); |
122 |
– |
shouldThrow(); |
123 |
– |
} catch (IndexOutOfBoundsException success) {} |
124 |
– |
try { |
125 |
– |
aa.compareAndExchangeAcquire(index, null, null); |
126 |
– |
shouldThrow(); |
127 |
– |
} catch (IndexOutOfBoundsException success) {} |
128 |
– |
try { |
129 |
– |
aa.compareAndExchangeRelease(index, null, null); |
130 |
– |
shouldThrow(); |
131 |
– |
} catch (IndexOutOfBoundsException success) {} |
132 |
– |
try { |
133 |
– |
aa.weakCompareAndSetVolatile(index, null, null); |
134 |
– |
shouldThrow(); |
135 |
– |
} catch (IndexOutOfBoundsException success) {} |
136 |
– |
try { |
137 |
– |
aa.weakCompareAndSetAcquire(index, null, null); |
138 |
– |
shouldThrow(); |
139 |
– |
} catch (IndexOutOfBoundsException success) {} |
140 |
– |
try { |
141 |
– |
aa.weakCompareAndSetRelease(index, null, null); |
142 |
– |
shouldThrow(); |
143 |
– |
} catch (IndexOutOfBoundsException success) {} |
97 |
|
} |
98 |
|
} |
99 |
|
|
101 |
|
* get returns the last value set at index |
102 |
|
*/ |
103 |
|
public void testGetSet() { |
104 |
< |
AtomicReferenceArray aa = new AtomicReferenceArray(SIZE); |
104 |
> |
AtomicReferenceArray<Item> aa = new AtomicReferenceArray<>(SIZE); |
105 |
|
for (int i = 0; i < SIZE; i++) { |
106 |
|
aa.set(i, one); |
107 |
|
assertSame(one, aa.get(i)); |
108 |
|
aa.set(i, two); |
109 |
|
assertSame(two, aa.get(i)); |
110 |
< |
aa.set(i, m3); |
111 |
< |
assertSame(m3, aa.get(i)); |
110 |
> |
aa.set(i, minusThree); |
111 |
> |
assertSame(minusThree, aa.get(i)); |
112 |
|
} |
113 |
|
} |
114 |
|
|
116 |
|
* get returns the last value lazySet at index by same thread |
117 |
|
*/ |
118 |
|
public void testGetLazySet() { |
119 |
< |
AtomicReferenceArray aa = new AtomicReferenceArray(SIZE); |
119 |
> |
AtomicReferenceArray<Item> aa = new AtomicReferenceArray<>(SIZE); |
120 |
|
for (int i = 0; i < SIZE; i++) { |
121 |
|
aa.lazySet(i, one); |
122 |
|
assertSame(one, aa.get(i)); |
123 |
|
aa.lazySet(i, two); |
124 |
|
assertSame(two, aa.get(i)); |
125 |
< |
aa.lazySet(i, m3); |
126 |
< |
assertSame(m3, aa.get(i)); |
125 |
> |
aa.lazySet(i, minusThree); |
126 |
> |
assertSame(minusThree, aa.get(i)); |
127 |
|
} |
128 |
|
} |
129 |
|
|
131 |
|
* compareAndSet succeeds in changing value if equal to expected else fails |
132 |
|
*/ |
133 |
|
public void testCompareAndSet() { |
134 |
< |
AtomicReferenceArray aa = new AtomicReferenceArray(SIZE); |
134 |
> |
AtomicReferenceArray<Item> aa = new AtomicReferenceArray<>(SIZE); |
135 |
|
for (int i = 0; i < SIZE; i++) { |
136 |
|
aa.set(i, one); |
137 |
|
assertTrue(aa.compareAndSet(i, one, two)); |
138 |
< |
assertTrue(aa.compareAndSet(i, two, m4)); |
139 |
< |
assertSame(m4, aa.get(i)); |
140 |
< |
assertFalse(aa.compareAndSet(i, m5, seven)); |
141 |
< |
assertSame(m4, aa.get(i)); |
142 |
< |
assertTrue(aa.compareAndSet(i, m4, seven)); |
138 |
> |
assertTrue(aa.compareAndSet(i, two, minusFour)); |
139 |
> |
assertSame(minusFour, aa.get(i)); |
140 |
> |
assertFalse(aa.compareAndSet(i, minusFive, seven)); |
141 |
> |
assertSame(minusFour, aa.get(i)); |
142 |
> |
assertTrue(aa.compareAndSet(i, minusFour, seven)); |
143 |
|
assertSame(seven, aa.get(i)); |
144 |
|
} |
145 |
|
} |
149 |
|
* to succeed |
150 |
|
*/ |
151 |
|
public void testCompareAndSetInMultipleThreads() throws InterruptedException { |
152 |
< |
final AtomicReferenceArray a = new AtomicReferenceArray(1); |
152 |
> |
final AtomicReferenceArray<Item> a = new AtomicReferenceArray<>(1); |
153 |
|
a.set(0, one); |
154 |
|
Thread t = new Thread(new CheckedRunnable() { |
155 |
|
public void realRun() { |
168 |
|
* repeated weakCompareAndSet succeeds in changing value when equal |
169 |
|
* to expected |
170 |
|
*/ |
171 |
+ |
@SuppressWarnings("deprecation") |
172 |
|
public void testWeakCompareAndSet() { |
173 |
< |
AtomicReferenceArray aa = new AtomicReferenceArray(SIZE); |
173 |
> |
AtomicReferenceArray<Item> aa = new AtomicReferenceArray<>(SIZE); |
174 |
|
for (int i = 0; i < SIZE; i++) { |
175 |
|
aa.set(i, one); |
176 |
|
do {} while (!aa.weakCompareAndSet(i, one, two)); |
177 |
< |
do {} while (!aa.weakCompareAndSet(i, two, m4)); |
178 |
< |
assertSame(m4, aa.get(i)); |
179 |
< |
do {} while (!aa.weakCompareAndSet(i, m4, seven)); |
177 |
> |
do {} while (!aa.weakCompareAndSet(i, two, minusFour)); |
178 |
> |
assertSame(minusFour, aa.get(i)); |
179 |
> |
do {} while (!aa.weakCompareAndSet(i, minusFour, seven)); |
180 |
|
assertSame(seven, aa.get(i)); |
181 |
|
} |
182 |
|
} |
185 |
|
* getAndSet returns previous value and sets to given value at given index |
186 |
|
*/ |
187 |
|
public void testGetAndSet() { |
188 |
< |
AtomicReferenceArray aa = new AtomicReferenceArray(SIZE); |
188 |
> |
AtomicReferenceArray<Item> aa = new AtomicReferenceArray<>(SIZE); |
189 |
|
for (int i = 0; i < SIZE; i++) { |
190 |
|
aa.set(i, one); |
191 |
|
assertSame(one, aa.getAndSet(i, zero)); |
192 |
< |
assertSame(zero, aa.getAndSet(i, m10)); |
193 |
< |
assertSame(m10, aa.getAndSet(i, one)); |
192 |
> |
assertSame(zero, aa.getAndSet(i, minusTen)); |
193 |
> |
assertSame(minusTen, aa.getAndSet(i, one)); |
194 |
|
} |
195 |
|
} |
196 |
|
|
197 |
|
/** |
198 |
< |
* a deserialized serialized array holds same values |
198 |
> |
* a deserialized/reserialized array holds same values in same order |
199 |
|
*/ |
200 |
|
public void testSerialization() throws Exception { |
201 |
< |
AtomicReferenceArray x = new AtomicReferenceArray(SIZE); |
201 |
> |
AtomicReferenceArray<Item> x = new AtomicReferenceArray<>(SIZE); |
202 |
|
for (int i = 0; i < SIZE; i++) { |
203 |
< |
x.set(i, new Integer(-i)); |
203 |
> |
x.set(i, minusOne); |
204 |
|
} |
205 |
< |
AtomicReferenceArray y = serialClone(x); |
205 |
> |
AtomicReferenceArray<Item> y = serialClone(x); |
206 |
|
assertNotSame(x, y); |
207 |
|
assertEquals(x.length(), y.length()); |
208 |
|
for (int i = 0; i < SIZE; i++) { |
214 |
|
* toString returns current value. |
215 |
|
*/ |
216 |
|
public void testToString() { |
217 |
< |
Integer[] a = { two, one, three, four, seven }; |
218 |
< |
AtomicReferenceArray<Integer> aa = new AtomicReferenceArray<Integer>(a); |
217 |
> |
Item[] a = { two, one, three, four, seven }; |
218 |
> |
AtomicReferenceArray<Item> aa = new AtomicReferenceArray<>(a); |
219 |
|
assertEquals(Arrays.toString(a), aa.toString()); |
220 |
|
} |
221 |
|
|
268 |
– |
// jdk9 |
269 |
– |
|
270 |
– |
/** |
271 |
– |
* getPlain returns the last value set |
272 |
– |
*/ |
273 |
– |
public void testGetPlainSet() { |
274 |
– |
AtomicReferenceArray<Integer> aa = new AtomicReferenceArray<Integer>(SIZE); |
275 |
– |
for (int i = 0; i < SIZE; i++) { |
276 |
– |
aa.set(i, one); |
277 |
– |
assertEquals(one, aa.getPlain(i)); |
278 |
– |
aa.set(i, two); |
279 |
– |
assertEquals(two, aa.getPlain(i)); |
280 |
– |
aa.set(i, m3); |
281 |
– |
assertEquals(m3, aa.getPlain(i)); |
282 |
– |
} |
283 |
– |
} |
284 |
– |
|
285 |
– |
/** |
286 |
– |
* getOpaque returns the last value set |
287 |
– |
*/ |
288 |
– |
public void testGetOpaqueSet() { |
289 |
– |
AtomicReferenceArray<Integer> aa = new AtomicReferenceArray<Integer>(SIZE); |
290 |
– |
for (int i = 0; i < SIZE; i++) { |
291 |
– |
aa.set(i, one); |
292 |
– |
assertEquals(one, aa.getOpaque(i)); |
293 |
– |
aa.set(i, two); |
294 |
– |
assertEquals(two, aa.getOpaque(i)); |
295 |
– |
aa.set(i, m3); |
296 |
– |
assertEquals(m3, aa.getOpaque(i)); |
297 |
– |
} |
298 |
– |
} |
299 |
– |
|
300 |
– |
/** |
301 |
– |
* getAcquire returns the last value set |
302 |
– |
*/ |
303 |
– |
public void testGetAcquireSet() { |
304 |
– |
AtomicReferenceArray<Integer> aa = new AtomicReferenceArray<Integer>(SIZE); |
305 |
– |
for (int i = 0; i < SIZE; i++) { |
306 |
– |
aa.set(i, one); |
307 |
– |
assertEquals(one, aa.getAcquire(i)); |
308 |
– |
aa.set(i, two); |
309 |
– |
assertEquals(two, aa.getAcquire(i)); |
310 |
– |
aa.set(i, m3); |
311 |
– |
assertEquals(m3, aa.getAcquire(i)); |
312 |
– |
} |
313 |
– |
} |
314 |
– |
|
315 |
– |
/** |
316 |
– |
* get returns the last value setPlain |
317 |
– |
*/ |
318 |
– |
public void testGetSetPlain() { |
319 |
– |
AtomicReferenceArray<Integer> aa = new AtomicReferenceArray<Integer>(SIZE); |
320 |
– |
for (int i = 0; i < SIZE; i++) { |
321 |
– |
aa.setPlain(i, one); |
322 |
– |
assertEquals(one, aa.get(i)); |
323 |
– |
aa.setPlain(i, two); |
324 |
– |
assertEquals(two, aa.get(i)); |
325 |
– |
aa.setPlain(i, m3); |
326 |
– |
assertEquals(m3, aa.get(i)); |
327 |
– |
} |
328 |
– |
} |
329 |
– |
|
330 |
– |
/** |
331 |
– |
* get returns the last value setOpaque |
332 |
– |
*/ |
333 |
– |
public void testGetSetOpaque() { |
334 |
– |
AtomicReferenceArray<Integer> aa = new AtomicReferenceArray<Integer>(SIZE); |
335 |
– |
for (int i = 0; i < SIZE; i++) { |
336 |
– |
aa.setOpaque(i, one); |
337 |
– |
assertEquals(one, aa.get(i)); |
338 |
– |
aa.setOpaque(i, two); |
339 |
– |
assertEquals(two, aa.get(i)); |
340 |
– |
aa.setOpaque(i, m3); |
341 |
– |
assertEquals(m3, aa.get(i)); |
342 |
– |
} |
343 |
– |
} |
344 |
– |
|
345 |
– |
/** |
346 |
– |
* get returns the last value setRelease |
347 |
– |
*/ |
348 |
– |
public void testGetSetRelease() { |
349 |
– |
AtomicReferenceArray<Integer> aa = new AtomicReferenceArray<Integer>(SIZE); |
350 |
– |
for (int i = 0; i < SIZE; i++) { |
351 |
– |
aa.setRelease(i, one); |
352 |
– |
assertEquals(one, aa.get(i)); |
353 |
– |
aa.setRelease(i, two); |
354 |
– |
assertEquals(two, aa.get(i)); |
355 |
– |
aa.setRelease(i, m3); |
356 |
– |
assertEquals(m3, aa.get(i)); |
357 |
– |
} |
358 |
– |
} |
359 |
– |
|
360 |
– |
/** |
361 |
– |
* compareAndExchange succeeds in changing value if equal to |
362 |
– |
* expected else fails |
363 |
– |
*/ |
364 |
– |
public void testCompareAndExchange() { |
365 |
– |
AtomicReferenceArray<Integer> aa = new AtomicReferenceArray<Integer>(SIZE); |
366 |
– |
for (int i = 0; i < SIZE; i++) { |
367 |
– |
aa.set(i, one); |
368 |
– |
assertEquals(one, aa.compareAndExchange(i, one, two)); |
369 |
– |
assertEquals(two, aa.compareAndExchange(i, two, m4)); |
370 |
– |
assertEquals(m4, aa.get(i)); |
371 |
– |
assertEquals(m4, aa.compareAndExchange(i,m5, seven)); |
372 |
– |
assertEquals(m4, aa.get(i)); |
373 |
– |
assertEquals(m4, aa.compareAndExchange(i, m4, seven)); |
374 |
– |
assertEquals(seven, aa.get(i)); |
375 |
– |
} |
376 |
– |
} |
377 |
– |
|
378 |
– |
/** |
379 |
– |
* compareAndExchangeAcquire succeeds in changing value if equal to |
380 |
– |
* expected else fails |
381 |
– |
*/ |
382 |
– |
public void testCompareAndExchangeAcquire() { |
383 |
– |
AtomicReferenceArray<Integer> aa = new AtomicReferenceArray<Integer>(SIZE); |
384 |
– |
for (int i = 0; i < SIZE; i++) { |
385 |
– |
aa.set(i, one); |
386 |
– |
assertEquals(one, aa.compareAndExchangeAcquire(i, one, two)); |
387 |
– |
assertEquals(two, aa.compareAndExchangeAcquire(i, two, m4)); |
388 |
– |
assertEquals(m4, aa.get(i)); |
389 |
– |
assertEquals(m4, aa.compareAndExchangeAcquire(i,m5, seven)); |
390 |
– |
assertEquals(m4, aa.get(i)); |
391 |
– |
assertEquals(m4, aa.compareAndExchangeAcquire(i, m4, seven)); |
392 |
– |
assertEquals(seven, aa.get(i)); |
393 |
– |
} |
394 |
– |
} |
395 |
– |
|
396 |
– |
/** |
397 |
– |
* compareAndExchangeRelease succeeds in changing value if equal to |
398 |
– |
* expected else fails |
399 |
– |
*/ |
400 |
– |
public void testCompareAndExchangeRelease() { |
401 |
– |
AtomicReferenceArray<Integer> aa = new AtomicReferenceArray<Integer>(SIZE); |
402 |
– |
for (int i = 0; i < SIZE; i++) { |
403 |
– |
aa.set(i, one); |
404 |
– |
assertEquals(one, aa.compareAndExchangeRelease(i, one, two)); |
405 |
– |
assertEquals(two, aa.compareAndExchangeRelease(i, two, m4)); |
406 |
– |
assertEquals(m4, aa.get(i)); |
407 |
– |
assertEquals(m4, aa.compareAndExchangeRelease(i,m5, seven)); |
408 |
– |
assertEquals(m4, aa.get(i)); |
409 |
– |
assertEquals(m4, aa.compareAndExchangeRelease(i, m4, seven)); |
410 |
– |
assertEquals(seven, aa.get(i)); |
411 |
– |
} |
412 |
– |
} |
413 |
– |
|
414 |
– |
/** |
415 |
– |
* repeated weakCompareAndSetVolatile succeeds in changing value when equal |
416 |
– |
* to expected |
417 |
– |
*/ |
418 |
– |
public void testWeakCompareAndSetVolatile() { |
419 |
– |
AtomicReferenceArray<Integer> aa = new AtomicReferenceArray<Integer>(SIZE); |
420 |
– |
for (int i = 0; i < SIZE; i++) { |
421 |
– |
aa.set(i, one); |
422 |
– |
do {} while (!aa.weakCompareAndSetVolatile(i, one, two)); |
423 |
– |
do {} while (!aa.weakCompareAndSetVolatile(i, two, m4)); |
424 |
– |
assertEquals(m4, aa.get(i)); |
425 |
– |
do {} while (!aa.weakCompareAndSetVolatile(i, m4, seven)); |
426 |
– |
assertEquals(seven, aa.get(i)); |
427 |
– |
} |
428 |
– |
} |
429 |
– |
|
430 |
– |
/** |
431 |
– |
* repeated weakCompareAndSetAcquire succeeds in changing value when equal |
432 |
– |
* to expected |
433 |
– |
*/ |
434 |
– |
public void testWeakCompareAndSetAcquire() { |
435 |
– |
AtomicReferenceArray<Integer> aa = new AtomicReferenceArray<Integer>(SIZE); |
436 |
– |
for (int i = 0; i < SIZE; i++) { |
437 |
– |
aa.set(i, one); |
438 |
– |
do {} while (!aa.weakCompareAndSetAcquire(i, one, two)); |
439 |
– |
do {} while (!aa.weakCompareAndSetAcquire(i, two, m4)); |
440 |
– |
assertEquals(m4, aa.get(i)); |
441 |
– |
do {} while (!aa.weakCompareAndSetAcquire(i, m4, seven)); |
442 |
– |
assertEquals(seven, aa.get(i)); |
443 |
– |
} |
444 |
– |
} |
445 |
– |
|
446 |
– |
/** |
447 |
– |
* repeated weakCompareAndSetRelease succeeds in changing value when equal |
448 |
– |
* to expected |
449 |
– |
*/ |
450 |
– |
public void testWeakCompareAndSetRelease() { |
451 |
– |
AtomicReferenceArray<Integer> aa = new AtomicReferenceArray<Integer>(SIZE); |
452 |
– |
for (int i = 0; i < SIZE; i++) { |
453 |
– |
aa.set(i, one); |
454 |
– |
do {} while (!aa.weakCompareAndSetRelease(i, one, two)); |
455 |
– |
do {} while (!aa.weakCompareAndSetRelease(i, two, m4)); |
456 |
– |
assertEquals(m4, aa.get(i)); |
457 |
– |
do {} while (!aa.weakCompareAndSetRelease(i, m4, seven)); |
458 |
– |
assertEquals(seven, aa.get(i)); |
459 |
– |
} |
460 |
– |
} |
461 |
– |
|
222 |
|
} |