28 |
|
class Implementation implements MapImplementation { |
29 |
|
public Class<?> klazz() { return ConcurrentHashMap.class; } |
30 |
|
public Map emptyMap() { return new ConcurrentHashMap(); } |
31 |
– |
public Object makeKey(int i) { return i; } |
32 |
– |
public Object makeValue(int i) { return i; } |
31 |
|
public boolean isConcurrent() { return true; } |
32 |
|
public boolean permitsNullKeys() { return false; } |
33 |
|
public boolean permitsNullValues() { return false; } |
39 |
|
} |
40 |
|
|
41 |
|
/** |
42 |
< |
* Returns a new map from Integers 1-5 to Strings "A"-"E". |
42 |
> |
* Returns a new map from Items 1-5 to Strings "A"-"E". |
43 |
|
*/ |
44 |
< |
private static ConcurrentHashMap<Integer, String> map5() { |
45 |
< |
ConcurrentHashMap<Integer, String> map = new ConcurrentHashMap<>(5); |
44 |
> |
private static ConcurrentHashMap<Item, String> map5() { |
45 |
> |
ConcurrentHashMap<Item, String> map = new ConcurrentHashMap<>(5); |
46 |
|
assertTrue(map.isEmpty()); |
47 |
|
map.put(one, "A"); |
48 |
|
map.put(two, "B"); |
50 |
|
map.put(four, "D"); |
51 |
|
map.put(five, "E"); |
52 |
|
assertFalse(map.isEmpty()); |
53 |
< |
assertEquals(5, map.size()); |
53 |
> |
mustEqual(5, map.size()); |
54 |
|
return map; |
55 |
|
} |
56 |
|
|
59 |
– |
/** Re-implement Integer.compare for old java versions */ |
60 |
– |
static int compare(int x, int y) { |
61 |
– |
return (x < y) ? -1 : (x > y) ? 1 : 0; |
62 |
– |
} |
63 |
– |
|
57 |
|
// classes for testing Comparable fallbacks |
58 |
|
static class BI implements Comparable<BI> { |
59 |
|
private final int value; |
60 |
|
BI(int value) { this.value = value; } |
61 |
|
public int compareTo(BI other) { |
62 |
< |
return compare(value, other.value); |
62 |
> |
return Integer.compare(value, other.value); |
63 |
|
} |
64 |
|
public boolean equals(Object x) { |
65 |
|
return (x instanceof BI) && ((BI)x).value == value; |
93 |
|
break; |
94 |
|
} |
95 |
|
if (r == 0) |
96 |
< |
r = compare(size(), other.size()); |
96 |
> |
r = Integer.compare(size(), other.size()); |
97 |
|
return r; |
98 |
|
} |
99 |
|
private static final long serialVersionUID = 0; |
196 |
|
} |
197 |
|
int count = 0; |
198 |
|
for (Object k : map.keySet()) { |
199 |
< |
assertEquals(map.get(k), k); |
199 |
> |
mustEqual(map.get(k), k); |
200 |
|
++count; |
201 |
|
} |
202 |
< |
assertEquals(count, size); |
203 |
< |
assertEquals(map.size(), size); |
202 |
> |
mustEqual(count, size); |
203 |
> |
mustEqual(map.size(), size); |
204 |
|
for (Object k : map.keySet()) { |
205 |
< |
assertEquals(map.put(k, k), k); |
205 |
> |
mustEqual(map.put(k, k), k); |
206 |
|
} |
207 |
|
} |
208 |
|
|
210 |
|
* clear removes all pairs |
211 |
|
*/ |
212 |
|
public void testClear() { |
213 |
< |
ConcurrentHashMap map = map5(); |
213 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
214 |
|
map.clear(); |
215 |
< |
assertEquals(0, map.size()); |
215 |
> |
mustEqual(0, map.size()); |
216 |
|
} |
217 |
|
|
218 |
|
/** |
219 |
|
* Maps with same contents are equal |
220 |
|
*/ |
221 |
|
public void testEquals() { |
222 |
< |
ConcurrentHashMap map1 = map5(); |
223 |
< |
ConcurrentHashMap map2 = map5(); |
224 |
< |
assertEquals(map1, map2); |
225 |
< |
assertEquals(map2, map1); |
222 |
> |
ConcurrentHashMap<Item,String> map1 = map5(); |
223 |
> |
ConcurrentHashMap<Item,String> map2 = map5(); |
224 |
> |
mustEqual(map1, map2); |
225 |
> |
mustEqual(map2, map1); |
226 |
|
map1.clear(); |
227 |
|
assertFalse(map1.equals(map2)); |
228 |
|
assertFalse(map2.equals(map1)); |
232 |
|
* hashCode() equals sum of each key.hashCode ^ value.hashCode |
233 |
|
*/ |
234 |
|
public void testHashCode() { |
235 |
< |
ConcurrentHashMap<Integer,String> map = map5(); |
235 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
236 |
|
int sum = 0; |
237 |
< |
for (Map.Entry<Integer,String> e : map.entrySet()) |
237 |
> |
for (Map.Entry<Item,String> e : map.entrySet()) |
238 |
|
sum += e.getKey().hashCode() ^ e.getValue().hashCode(); |
239 |
< |
assertEquals(sum, map.hashCode()); |
239 |
> |
mustEqual(sum, map.hashCode()); |
240 |
|
} |
241 |
|
|
242 |
|
/** |
243 |
|
* contains returns true for contained value |
244 |
|
*/ |
245 |
|
public void testContains() { |
246 |
< |
ConcurrentHashMap map = map5(); |
246 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
247 |
|
assertTrue(map.contains("A")); |
248 |
|
assertFalse(map.contains("Z")); |
249 |
|
} |
252 |
|
* containsKey returns true for contained key |
253 |
|
*/ |
254 |
|
public void testContainsKey() { |
255 |
< |
ConcurrentHashMap map = map5(); |
255 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
256 |
|
assertTrue(map.containsKey(one)); |
257 |
|
assertFalse(map.containsKey(zero)); |
258 |
|
} |
261 |
|
* containsValue returns true for held values |
262 |
|
*/ |
263 |
|
public void testContainsValue() { |
264 |
< |
ConcurrentHashMap map = map5(); |
264 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
265 |
|
assertTrue(map.containsValue("A")); |
266 |
|
assertFalse(map.containsValue("Z")); |
267 |
|
} |
271 |
|
* elements |
272 |
|
*/ |
273 |
|
public void testEnumeration() { |
274 |
< |
ConcurrentHashMap map = map5(); |
275 |
< |
Enumeration e = map.elements(); |
274 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
275 |
> |
Enumeration<String> e = map.elements(); |
276 |
|
int count = 0; |
277 |
|
while (e.hasMoreElements()) { |
278 |
|
count++; |
279 |
|
e.nextElement(); |
280 |
|
} |
281 |
< |
assertEquals(5, count); |
281 |
> |
mustEqual(5, count); |
282 |
|
} |
283 |
|
|
284 |
|
/** |
285 |
|
* get returns the correct element at the given key, |
286 |
|
* or null if not present |
287 |
|
*/ |
288 |
+ |
@SuppressWarnings("CollectionIncompatibleType") |
289 |
|
public void testGet() { |
290 |
< |
ConcurrentHashMap map = map5(); |
291 |
< |
assertEquals("A", (String)map.get(one)); |
292 |
< |
ConcurrentHashMap empty = new ConcurrentHashMap(); |
290 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
291 |
> |
mustEqual("A", map.get(one)); |
292 |
> |
ConcurrentHashMap<Item,String> empty = new ConcurrentHashMap<>(); |
293 |
|
assertNull(map.get("anything")); |
294 |
|
assertNull(empty.get("anything")); |
295 |
|
} |
298 |
|
* isEmpty is true of empty map and false for non-empty |
299 |
|
*/ |
300 |
|
public void testIsEmpty() { |
301 |
< |
ConcurrentHashMap empty = new ConcurrentHashMap(); |
302 |
< |
ConcurrentHashMap map = map5(); |
301 |
> |
ConcurrentHashMap<Item,String> empty = new ConcurrentHashMap<>(); |
302 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
303 |
|
assertTrue(empty.isEmpty()); |
304 |
|
assertFalse(map.isEmpty()); |
305 |
|
} |
308 |
|
* keys returns an enumeration containing all the keys from the map |
309 |
|
*/ |
310 |
|
public void testKeys() { |
311 |
< |
ConcurrentHashMap map = map5(); |
312 |
< |
Enumeration e = map.keys(); |
311 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
312 |
> |
Enumeration<Item> e = map.keys(); |
313 |
|
int count = 0; |
314 |
|
while (e.hasMoreElements()) { |
315 |
|
count++; |
316 |
|
e.nextElement(); |
317 |
|
} |
318 |
< |
assertEquals(5, count); |
318 |
> |
mustEqual(5, count); |
319 |
|
} |
320 |
|
|
321 |
|
/** |
322 |
|
* keySet returns a Set containing all the keys |
323 |
|
*/ |
324 |
|
public void testKeySet() { |
325 |
< |
ConcurrentHashMap map = map5(); |
326 |
< |
Set s = map.keySet(); |
327 |
< |
assertEquals(5, s.size()); |
328 |
< |
assertTrue(s.contains(one)); |
329 |
< |
assertTrue(s.contains(two)); |
330 |
< |
assertTrue(s.contains(three)); |
331 |
< |
assertTrue(s.contains(four)); |
332 |
< |
assertTrue(s.contains(five)); |
325 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
326 |
> |
Set<Item> s = map.keySet(); |
327 |
> |
mustEqual(5, s.size()); |
328 |
> |
mustContain(s, one); |
329 |
> |
mustContain(s, two); |
330 |
> |
mustContain(s, three); |
331 |
> |
mustContain(s, four); |
332 |
> |
mustContain(s, five); |
333 |
|
} |
334 |
|
|
335 |
|
/** |
336 |
|
* Test keySet().removeAll on empty map |
337 |
|
*/ |
338 |
|
public void testKeySet_empty_removeAll() { |
339 |
< |
ConcurrentHashMap<Integer, String> map = new ConcurrentHashMap<>(); |
340 |
< |
Set<Integer> set = map.keySet(); |
339 |
> |
ConcurrentHashMap<Item, String> map = new ConcurrentHashMap<>(); |
340 |
> |
Set<Item> set = map.keySet(); |
341 |
|
set.removeAll(Collections.emptyList()); |
342 |
|
assertTrue(map.isEmpty()); |
343 |
|
assertTrue(set.isEmpty()); |
351 |
|
* keySet.toArray returns contains all keys |
352 |
|
*/ |
353 |
|
public void testKeySetToArray() { |
354 |
< |
ConcurrentHashMap map = map5(); |
355 |
< |
Set s = map.keySet(); |
354 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
355 |
> |
Set<Item> s = map.keySet(); |
356 |
|
Object[] ar = s.toArray(); |
357 |
|
assertTrue(s.containsAll(Arrays.asList(ar))); |
358 |
< |
assertEquals(5, ar.length); |
359 |
< |
ar[0] = m10; |
358 |
> |
mustEqual(5, ar.length); |
359 |
> |
ar[0] = minusTen; |
360 |
|
assertFalse(s.containsAll(Arrays.asList(ar))); |
361 |
|
} |
362 |
|
|
364 |
|
* Values.toArray contains all values |
365 |
|
*/ |
366 |
|
public void testValuesToArray() { |
367 |
< |
ConcurrentHashMap map = map5(); |
368 |
< |
Collection v = map.values(); |
369 |
< |
Object[] ar = v.toArray(); |
370 |
< |
ArrayList s = new ArrayList(Arrays.asList(ar)); |
371 |
< |
assertEquals(5, ar.length); |
367 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
368 |
> |
Collection<String> v = map.values(); |
369 |
> |
String[] ar = v.toArray(new String[0]); |
370 |
> |
ArrayList<String> s = new ArrayList<>(Arrays.asList(ar)); |
371 |
> |
mustEqual(5, ar.length); |
372 |
|
assertTrue(s.contains("A")); |
373 |
|
assertTrue(s.contains("B")); |
374 |
|
assertTrue(s.contains("C")); |
380 |
|
* entrySet.toArray contains all entries |
381 |
|
*/ |
382 |
|
public void testEntrySetToArray() { |
383 |
< |
ConcurrentHashMap map = map5(); |
384 |
< |
Set s = map.entrySet(); |
383 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
384 |
> |
Set<Map.Entry<Item,String>> s = map.entrySet(); |
385 |
|
Object[] ar = s.toArray(); |
386 |
< |
assertEquals(5, ar.length); |
386 |
> |
mustEqual(5, ar.length); |
387 |
|
for (int i = 0; i < 5; ++i) { |
388 |
|
assertTrue(map.containsKey(((Map.Entry)(ar[i])).getKey())); |
389 |
|
assertTrue(map.containsValue(((Map.Entry)(ar[i])).getValue())); |
394 |
|
* values collection contains all values |
395 |
|
*/ |
396 |
|
public void testValues() { |
397 |
< |
ConcurrentHashMap map = map5(); |
398 |
< |
Collection s = map.values(); |
399 |
< |
assertEquals(5, s.size()); |
397 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
398 |
> |
Collection<String> s = map.values(); |
399 |
> |
mustEqual(5, s.size()); |
400 |
|
assertTrue(s.contains("A")); |
401 |
|
assertTrue(s.contains("B")); |
402 |
|
assertTrue(s.contains("C")); |
408 |
|
* entrySet contains all pairs |
409 |
|
*/ |
410 |
|
public void testEntrySet() { |
411 |
< |
ConcurrentHashMap map = map5(); |
412 |
< |
Set s = map.entrySet(); |
413 |
< |
assertEquals(5, s.size()); |
414 |
< |
Iterator it = s.iterator(); |
411 |
> |
ConcurrentHashMap<Item, String> map = map5(); |
412 |
> |
Set<Map.Entry<Item,String>> s = map.entrySet(); |
413 |
> |
mustEqual(5, s.size()); |
414 |
> |
Iterator<Map.Entry<Item,String>> it = s.iterator(); |
415 |
|
while (it.hasNext()) { |
416 |
< |
Map.Entry e = (Map.Entry) it.next(); |
416 |
> |
Map.Entry<Item,String> e = it.next(); |
417 |
|
assertTrue( |
418 |
|
(e.getKey().equals(one) && e.getValue().equals("A")) || |
419 |
|
(e.getKey().equals(two) && e.getValue().equals("B")) || |
427 |
|
* putAll adds all key-value pairs from the given map |
428 |
|
*/ |
429 |
|
public void testPutAll() { |
430 |
< |
ConcurrentHashMap empty = new ConcurrentHashMap(); |
431 |
< |
ConcurrentHashMap map = map5(); |
432 |
< |
empty.putAll(map); |
433 |
< |
assertEquals(5, empty.size()); |
434 |
< |
assertTrue(empty.containsKey(one)); |
435 |
< |
assertTrue(empty.containsKey(two)); |
436 |
< |
assertTrue(empty.containsKey(three)); |
437 |
< |
assertTrue(empty.containsKey(four)); |
438 |
< |
assertTrue(empty.containsKey(five)); |
430 |
> |
ConcurrentHashMap<Item,String> p = new ConcurrentHashMap<>(); |
431 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
432 |
> |
p.putAll(map); |
433 |
> |
mustEqual(5, p.size()); |
434 |
> |
assertTrue(p.containsKey(one)); |
435 |
> |
assertTrue(p.containsKey(two)); |
436 |
> |
assertTrue(p.containsKey(three)); |
437 |
> |
assertTrue(p.containsKey(four)); |
438 |
> |
assertTrue(p.containsKey(five)); |
439 |
|
} |
440 |
|
|
441 |
|
/** |
442 |
|
* putIfAbsent works when the given key is not present |
443 |
|
*/ |
444 |
|
public void testPutIfAbsent() { |
445 |
< |
ConcurrentHashMap map = map5(); |
445 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
446 |
|
map.putIfAbsent(six, "Z"); |
447 |
|
assertTrue(map.containsKey(six)); |
448 |
|
} |
451 |
|
* putIfAbsent does not add the pair if the key is already present |
452 |
|
*/ |
453 |
|
public void testPutIfAbsent2() { |
454 |
< |
ConcurrentHashMap map = map5(); |
455 |
< |
assertEquals("A", map.putIfAbsent(one, "Z")); |
454 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
455 |
> |
mustEqual("A", map.putIfAbsent(one, "Z")); |
456 |
|
} |
457 |
|
|
458 |
|
/** |
459 |
|
* replace fails when the given key is not present |
460 |
|
*/ |
461 |
|
public void testReplace() { |
462 |
< |
ConcurrentHashMap map = map5(); |
462 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
463 |
|
assertNull(map.replace(six, "Z")); |
464 |
|
assertFalse(map.containsKey(six)); |
465 |
|
} |
468 |
|
* replace succeeds if the key is already present |
469 |
|
*/ |
470 |
|
public void testReplace2() { |
471 |
< |
ConcurrentHashMap map = map5(); |
471 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
472 |
|
assertNotNull(map.replace(one, "Z")); |
473 |
< |
assertEquals("Z", map.get(one)); |
473 |
> |
mustEqual("Z", map.get(one)); |
474 |
|
} |
475 |
|
|
476 |
|
/** |
477 |
|
* replace value fails when the given key not mapped to expected value |
478 |
|
*/ |
479 |
|
public void testReplaceValue() { |
480 |
< |
ConcurrentHashMap map = map5(); |
481 |
< |
assertEquals("A", map.get(one)); |
480 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
481 |
> |
mustEqual("A", map.get(one)); |
482 |
|
assertFalse(map.replace(one, "Z", "Z")); |
483 |
< |
assertEquals("A", map.get(one)); |
483 |
> |
mustEqual("A", map.get(one)); |
484 |
|
} |
485 |
|
|
486 |
|
/** |
487 |
|
* replace value succeeds when the given key mapped to expected value |
488 |
|
*/ |
489 |
|
public void testReplaceValue2() { |
490 |
< |
ConcurrentHashMap map = map5(); |
491 |
< |
assertEquals("A", map.get(one)); |
490 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
491 |
> |
mustEqual("A", map.get(one)); |
492 |
|
assertTrue(map.replace(one, "A", "Z")); |
493 |
< |
assertEquals("Z", map.get(one)); |
493 |
> |
mustEqual("Z", map.get(one)); |
494 |
|
} |
495 |
|
|
496 |
|
/** |
497 |
|
* remove removes the correct key-value pair from the map |
498 |
|
*/ |
499 |
|
public void testRemove() { |
500 |
< |
ConcurrentHashMap map = map5(); |
500 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
501 |
|
map.remove(five); |
502 |
< |
assertEquals(4, map.size()); |
502 |
> |
mustEqual(4, map.size()); |
503 |
|
assertFalse(map.containsKey(five)); |
504 |
|
} |
505 |
|
|
507 |
|
* remove(key,value) removes only if pair present |
508 |
|
*/ |
509 |
|
public void testRemove2() { |
510 |
< |
ConcurrentHashMap map = map5(); |
510 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
511 |
|
map.remove(five, "E"); |
512 |
< |
assertEquals(4, map.size()); |
512 |
> |
mustEqual(4, map.size()); |
513 |
|
assertFalse(map.containsKey(five)); |
514 |
|
map.remove(four, "A"); |
515 |
< |
assertEquals(4, map.size()); |
515 |
> |
mustEqual(4, map.size()); |
516 |
|
assertTrue(map.containsKey(four)); |
517 |
|
} |
518 |
|
|
520 |
|
* size returns the correct values |
521 |
|
*/ |
522 |
|
public void testSize() { |
523 |
< |
ConcurrentHashMap map = map5(); |
524 |
< |
ConcurrentHashMap empty = new ConcurrentHashMap(); |
525 |
< |
assertEquals(0, empty.size()); |
526 |
< |
assertEquals(5, map.size()); |
523 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
524 |
> |
ConcurrentHashMap<Item,String> empty = new ConcurrentHashMap<>(); |
525 |
> |
mustEqual(0, empty.size()); |
526 |
> |
mustEqual(5, map.size()); |
527 |
|
} |
528 |
|
|
529 |
|
/** |
530 |
|
* toString contains toString of elements |
531 |
|
*/ |
532 |
|
public void testToString() { |
533 |
< |
ConcurrentHashMap map = map5(); |
533 |
> |
ConcurrentHashMap<Item,String> map = map5(); |
534 |
|
String s = map.toString(); |
535 |
|
for (int i = 1; i <= 5; ++i) { |
536 |
|
assertTrue(s.contains(String.valueOf(i))); |
544 |
|
*/ |
545 |
|
public void testConstructor1() { |
546 |
|
try { |
547 |
< |
new ConcurrentHashMap(-1); |
547 |
> |
new ConcurrentHashMap<Item,String>(-1); |
548 |
|
shouldThrow(); |
549 |
|
} catch (IllegalArgumentException success) {} |
550 |
|
} |
555 |
|
*/ |
556 |
|
public void testConstructor2() { |
557 |
|
try { |
558 |
< |
new ConcurrentHashMap(-1, .75f); |
558 |
> |
new ConcurrentHashMap<Item,String>(-1, .75f); |
559 |
|
shouldThrow(); |
560 |
|
} catch (IllegalArgumentException success) {} |
561 |
|
|
562 |
|
try { |
563 |
< |
new ConcurrentHashMap(16, -1); |
563 |
> |
new ConcurrentHashMap<Item,String>(16, -1); |
564 |
|
shouldThrow(); |
565 |
|
} catch (IllegalArgumentException success) {} |
566 |
|
} |
571 |
|
*/ |
572 |
|
public void testConstructor3() { |
573 |
|
try { |
574 |
< |
new ConcurrentHashMap(-1, .75f, 1); |
574 |
> |
new ConcurrentHashMap<Item,String>(-1, .75f, 1); |
575 |
|
shouldThrow(); |
576 |
|
} catch (IllegalArgumentException success) {} |
577 |
|
|
578 |
|
try { |
579 |
< |
new ConcurrentHashMap(16, -1, 1); |
579 |
> |
new ConcurrentHashMap<Item,String>(16, -1, 1); |
580 |
|
shouldThrow(); |
581 |
|
} catch (IllegalArgumentException success) {} |
582 |
|
|
583 |
|
try { |
584 |
< |
new ConcurrentHashMap(16, .75f, -1); |
584 |
> |
new ConcurrentHashMap<Item,String>(16, .75f, -1); |
585 |
|
shouldThrow(); |
586 |
|
} catch (IllegalArgumentException success) {} |
587 |
|
} |
592 |
|
*/ |
593 |
|
public void testConstructor4() { |
594 |
|
try { |
595 |
< |
new ConcurrentHashMap(null); |
595 |
> |
new ConcurrentHashMap<Item,String>(null); |
596 |
|
shouldThrow(); |
597 |
|
} catch (NullPointerException success) {} |
598 |
|
} |
602 |
|
* as the given map |
603 |
|
*/ |
604 |
|
public void testConstructor5() { |
605 |
< |
ConcurrentHashMap map1 = map5(); |
606 |
< |
ConcurrentHashMap map2 = new ConcurrentHashMap(map5()); |
605 |
> |
ConcurrentHashMap<Item,String> map1 = map5(); |
606 |
> |
ConcurrentHashMap<Item,String> map2 = new ConcurrentHashMap<>(map1); |
607 |
|
assertTrue(map2.equals(map1)); |
608 |
|
map2.put(one, "F"); |
609 |
|
assertFalse(map2.equals(map1)); |
613 |
|
* get(null) throws NPE |
614 |
|
*/ |
615 |
|
public void testGet_NullPointerException() { |
616 |
< |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
616 |
> |
ConcurrentHashMap<Item,String> c = new ConcurrentHashMap<>(5); |
617 |
|
try { |
618 |
|
c.get(null); |
619 |
|
shouldThrow(); |
624 |
|
* containsKey(null) throws NPE |
625 |
|
*/ |
626 |
|
public void testContainsKey_NullPointerException() { |
627 |
< |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
627 |
> |
ConcurrentHashMap<Item,String> c = new ConcurrentHashMap<>(5); |
628 |
|
try { |
629 |
|
c.containsKey(null); |
630 |
|
shouldThrow(); |
635 |
|
* containsValue(null) throws NPE |
636 |
|
*/ |
637 |
|
public void testContainsValue_NullPointerException() { |
638 |
< |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
638 |
> |
ConcurrentHashMap<Item,String> c = new ConcurrentHashMap<>(5); |
639 |
|
try { |
640 |
|
c.containsValue(null); |
641 |
|
shouldThrow(); |
646 |
|
* contains(null) throws NPE |
647 |
|
*/ |
648 |
|
public void testContains_NullPointerException() { |
649 |
< |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
649 |
> |
ConcurrentHashMap<Item,String> c = new ConcurrentHashMap<>(5); |
650 |
|
try { |
651 |
|
c.contains(null); |
652 |
|
shouldThrow(); |
657 |
|
* put(null,x) throws NPE |
658 |
|
*/ |
659 |
|
public void testPut1_NullPointerException() { |
660 |
< |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
660 |
> |
ConcurrentHashMap<Item,String> c = new ConcurrentHashMap<>(5); |
661 |
|
try { |
662 |
|
c.put(null, "whatever"); |
663 |
|
shouldThrow(); |
668 |
|
* put(x, null) throws NPE |
669 |
|
*/ |
670 |
|
public void testPut2_NullPointerException() { |
671 |
< |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
671 |
> |
ConcurrentHashMap<Item,String> c = new ConcurrentHashMap<>(5); |
672 |
|
try { |
673 |
< |
c.put("whatever", null); |
673 |
> |
c.put(zero, null); |
674 |
|
shouldThrow(); |
675 |
|
} catch (NullPointerException success) {} |
676 |
|
} |
679 |
|
* putIfAbsent(null, x) throws NPE |
680 |
|
*/ |
681 |
|
public void testPutIfAbsent1_NullPointerException() { |
682 |
< |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
682 |
> |
ConcurrentHashMap<Item,String> c = new ConcurrentHashMap<>(5); |
683 |
|
try { |
684 |
|
c.putIfAbsent(null, "whatever"); |
685 |
|
shouldThrow(); |
690 |
|
* replace(null, x) throws NPE |
691 |
|
*/ |
692 |
|
public void testReplace_NullPointerException() { |
693 |
< |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
693 |
> |
ConcurrentHashMap<Item,String> c = new ConcurrentHashMap<>(5); |
694 |
|
try { |
695 |
|
c.replace(null, "whatever"); |
696 |
|
shouldThrow(); |
701 |
|
* replace(null, x, y) throws NPE |
702 |
|
*/ |
703 |
|
public void testReplaceValue_NullPointerException() { |
704 |
< |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
704 |
> |
ConcurrentHashMap<Item,String> c = new ConcurrentHashMap<>(5); |
705 |
|
try { |
706 |
< |
c.replace(null, one, "whatever"); |
706 |
> |
c.replace(null, "A", "B"); |
707 |
|
shouldThrow(); |
708 |
|
} catch (NullPointerException success) {} |
709 |
|
} |
712 |
|
* putIfAbsent(x, null) throws NPE |
713 |
|
*/ |
714 |
|
public void testPutIfAbsent2_NullPointerException() { |
715 |
< |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
715 |
> |
ConcurrentHashMap<Item,String> c = new ConcurrentHashMap<>(5); |
716 |
|
try { |
717 |
< |
c.putIfAbsent("whatever", null); |
717 |
> |
c.putIfAbsent(zero, null); |
718 |
|
shouldThrow(); |
719 |
|
} catch (NullPointerException success) {} |
720 |
|
} |
723 |
|
* replace(x, null) throws NPE |
724 |
|
*/ |
725 |
|
public void testReplace2_NullPointerException() { |
726 |
< |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
726 |
> |
ConcurrentHashMap<Item,String> c = new ConcurrentHashMap<>(5); |
727 |
|
try { |
728 |
< |
c.replace("whatever", null); |
728 |
> |
c.replace(one, null); |
729 |
|
shouldThrow(); |
730 |
|
} catch (NullPointerException success) {} |
731 |
|
} |
734 |
|
* replace(x, null, y) throws NPE |
735 |
|
*/ |
736 |
|
public void testReplaceValue2_NullPointerException() { |
737 |
< |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
737 |
> |
ConcurrentHashMap<Item,String> c = new ConcurrentHashMap<>(5); |
738 |
|
try { |
739 |
< |
c.replace("whatever", null, "A"); |
739 |
> |
c.replace(one, null, "A"); |
740 |
|
shouldThrow(); |
741 |
|
} catch (NullPointerException success) {} |
742 |
|
} |
745 |
|
* replace(x, y, null) throws NPE |
746 |
|
*/ |
747 |
|
public void testReplaceValue3_NullPointerException() { |
748 |
< |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
748 |
> |
ConcurrentHashMap<Item,String> c = new ConcurrentHashMap<>(5); |
749 |
|
try { |
750 |
< |
c.replace("whatever", one, null); |
750 |
> |
c.replace(zero, "A", null); |
751 |
|
shouldThrow(); |
752 |
|
} catch (NullPointerException success) {} |
753 |
|
} |
756 |
|
* remove(null) throws NPE |
757 |
|
*/ |
758 |
|
public void testRemove1_NullPointerException() { |
759 |
< |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
760 |
< |
c.put("sadsdf", "asdads"); |
759 |
> |
ConcurrentHashMap<Item,String> c = new ConcurrentHashMap<>(5); |
760 |
> |
c.put(one, "asdads"); |
761 |
|
try { |
762 |
|
c.remove(null); |
763 |
|
shouldThrow(); |
768 |
|
* remove(null, x) throws NPE |
769 |
|
*/ |
770 |
|
public void testRemove2_NullPointerException() { |
771 |
< |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
772 |
< |
c.put("sadsdf", "asdads"); |
771 |
> |
ConcurrentHashMap<Item,String> c = new ConcurrentHashMap<>(5); |
772 |
> |
c.put(one, "asdads"); |
773 |
|
try { |
774 |
|
c.remove(null, "whatever"); |
775 |
|
shouldThrow(); |
780 |
|
* remove(x, null) returns false |
781 |
|
*/ |
782 |
|
public void testRemove3() { |
783 |
< |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
784 |
< |
c.put("sadsdf", "asdads"); |
785 |
< |
assertFalse(c.remove("sadsdf", null)); |
783 |
> |
ConcurrentHashMap<Item,String> c = new ConcurrentHashMap<>(5); |
784 |
> |
c.put(one, "asdads"); |
785 |
> |
assertFalse(c.remove(one, null)); |
786 |
|
} |
787 |
|
|
788 |
|
/** |
789 |
|
* A deserialized/reserialized map equals original |
790 |
|
*/ |
791 |
|
public void testSerialization() throws Exception { |
792 |
< |
Map x = map5(); |
793 |
< |
Map y = serialClone(x); |
792 |
> |
Map<Item,String> x = map5(); |
793 |
> |
Map<Item,String> y = serialClone(x); |
794 |
|
|
795 |
|
assertNotSame(x, y); |
796 |
< |
assertEquals(x.size(), y.size()); |
797 |
< |
assertEquals(x, y); |
798 |
< |
assertEquals(y, x); |
796 |
> |
mustEqual(x.size(), y.size()); |
797 |
> |
mustEqual(x, y); |
798 |
> |
mustEqual(y, x); |
799 |
|
} |
800 |
|
|
801 |
|
/** |
802 |
|
* SetValue of an EntrySet entry sets value in the map. |
803 |
|
*/ |
804 |
+ |
@SuppressWarnings("unchecked") |
805 |
|
public void testSetValueWriteThrough() { |
806 |
|
// Adapted from a bug report by Eric Zoerner |
807 |
< |
ConcurrentHashMap map = new ConcurrentHashMap(2, 5.0f, 1); |
807 |
> |
ConcurrentHashMap<Object,Object> map = new ConcurrentHashMap<>(2, 5.0f, 1); |
808 |
|
assertTrue(map.isEmpty()); |
809 |
|
for (int i = 0; i < 20; i++) |
810 |
< |
map.put(new Integer(i), new Integer(i)); |
810 |
> |
map.put(itemFor(i), itemFor(i)); |
811 |
|
assertFalse(map.isEmpty()); |
812 |
< |
Map.Entry entry1 = (Map.Entry)map.entrySet().iterator().next(); |
812 |
> |
Item key = itemFor(16); |
813 |
> |
Map.Entry<Object,Object> entry1 = map.entrySet().iterator().next(); |
814 |
|
// Unless it happens to be first (in which case remainder of |
815 |
|
// test is skipped), remove a possibly-colliding key from map |
816 |
|
// which, under some implementations, may cause entry1 to be |
817 |
|
// cloned in map |
818 |
< |
if (!entry1.getKey().equals(new Integer(16))) { |
819 |
< |
map.remove(new Integer(16)); |
818 |
> |
if (!entry1.getKey().equals(key)) { |
819 |
> |
map.remove(key); |
820 |
|
entry1.setValue("XYZ"); |
821 |
|
assertTrue(map.containsValue("XYZ")); // fails if write-through broken |
822 |
|
} |
829 |
|
public void testRemoveAll_performance() { |
830 |
|
final int mapSize = expensiveTests ? 1_000_000 : 100; |
831 |
|
final int iterations = expensiveTests ? 500 : 2; |
832 |
< |
final ConcurrentHashMap<Integer, Integer> map = new ConcurrentHashMap<>(); |
833 |
< |
for (int i = 0; i < mapSize; i++) |
834 |
< |
map.put(i, i); |
835 |
< |
Set<Integer> keySet = map.keySet(); |
836 |
< |
Collection<Integer> removeMe = Arrays.asList(new Integer[] { -99, -86 }); |
832 |
> |
final ConcurrentHashMap<Item, Item> map = new ConcurrentHashMap<>(); |
833 |
> |
for (int i = 0; i < mapSize; i++) { |
834 |
> |
Item I = itemFor(i); |
835 |
> |
map.put(I, I); |
836 |
> |
} |
837 |
> |
Set<Item> keySet = map.keySet(); |
838 |
> |
Collection<Item> removeMe = Arrays.asList(new Item[] { minusOne, minusTwo }); |
839 |
|
for (int i = 0; i < iterations; i++) |
840 |
|
assertFalse(keySet.removeAll(removeMe)); |
841 |
< |
assertEquals(mapSize, map.size()); |
841 |
> |
mustEqual(mapSize, map.size()); |
842 |
> |
} |
843 |
> |
|
844 |
> |
public void testReentrantComputeIfAbsent() { |
845 |
> |
ConcurrentHashMap<Item, Item> map = new ConcurrentHashMap<>(16); |
846 |
> |
try { |
847 |
> |
for (int i = 0; i < 100; i++) { // force a resize |
848 |
> |
map.computeIfAbsent(new Item(i), key -> new Item(findValue(map, key))); |
849 |
> |
} |
850 |
> |
fail("recursive computeIfAbsent should throw IllegalStateException"); |
851 |
> |
} catch (IllegalStateException success) {} |
852 |
|
} |
853 |
|
|
854 |
+ |
private static Item findValue(ConcurrentHashMap<Item, Item> map, |
855 |
+ |
Item key) { |
856 |
+ |
return (key.value % 5 == 0) ? key : |
857 |
+ |
map.computeIfAbsent(new Item(key.value + 1), k -> new Item(findValue(map, k))); |
858 |
+ |
} |
859 |
|
} |