| 21 |
|
import java.util.Spliterator; |
| 22 |
|
import java.util.concurrent.BlockingDeque; |
| 23 |
|
import java.util.concurrent.BlockingQueue; |
| 24 |
+ |
import java.util.concurrent.ConcurrentLinkedQueue; |
| 25 |
|
import java.util.concurrent.CountDownLatch; |
| 26 |
|
import java.util.concurrent.Executors; |
| 27 |
|
import java.util.concurrent.ExecutorService; |
| 305 |
|
switch (rnd.nextInt(4)) { |
| 306 |
|
case 0: survivors.addAll(c); break; |
| 307 |
|
case 1: survivors.addAll(Arrays.asList(c.toArray())); break; |
| 308 |
< |
case 2: c.forEach(e -> survivors.add(e)); break; |
| 308 |
> |
case 2: c.forEach(survivors::add); break; |
| 309 |
|
case 3: for (Object e : c) survivors.add(e); break; |
| 310 |
|
} |
| 311 |
|
assertTrue(orig.containsAll(accepts)); |
| 353 |
|
ArrayList iteratedForEachRemaining = new ArrayList(); |
| 354 |
|
ArrayList tryAdvanced = new ArrayList(); |
| 355 |
|
ArrayList spliterated = new ArrayList(); |
| 356 |
+ |
ArrayList splitonced = new ArrayList(); |
| 357 |
|
ArrayList forEached = new ArrayList(); |
| 358 |
+ |
ArrayList streamForEached = new ArrayList(); |
| 359 |
+ |
ConcurrentLinkedQueue parallelStreamForEached = new ConcurrentLinkedQueue(); |
| 360 |
|
ArrayList removeIfed = new ArrayList(); |
| 361 |
|
for (Object x : c) iterated.add(x); |
| 362 |
< |
c.iterator().forEachRemaining(e -> iteratedForEachRemaining.add(e)); |
| 362 |
> |
c.iterator().forEachRemaining(iteratedForEachRemaining::add); |
| 363 |
|
for (Spliterator s = c.spliterator(); |
| 364 |
< |
s.tryAdvance(e -> tryAdvanced.add(e)); ) {} |
| 365 |
< |
c.spliterator().forEachRemaining(e -> spliterated.add(e)); |
| 366 |
< |
c.forEach(e -> forEached.add(e)); |
| 364 |
> |
s.tryAdvance(tryAdvanced::add); ) {} |
| 365 |
> |
c.spliterator().forEachRemaining(spliterated::add); |
| 366 |
> |
{ // trySplit returns "strict prefix" |
| 367 |
> |
Spliterator s1 = c.spliterator(), s2 = s1.trySplit(); |
| 368 |
> |
if (s2 != null) s2.forEachRemaining(splitonced::add); |
| 369 |
> |
s1.forEachRemaining(splitonced::add); |
| 370 |
> |
} |
| 371 |
> |
c.forEach(forEached::add); |
| 372 |
> |
c.stream().forEach(streamForEached::add); |
| 373 |
> |
c.parallelStream().forEach(parallelStreamForEached::add); |
| 374 |
|
c.removeIf(e -> { removeIfed.add(e); return false; }); |
| 375 |
|
boolean ordered = |
| 376 |
|
c.spliterator().hasCharacteristics(Spliterator.ORDERED); |
| 377 |
|
if (c instanceof List || c instanceof Deque) |
| 378 |
|
assertTrue(ordered); |
| 379 |
+ |
HashSet cset = new HashSet(c); |
| 380 |
+ |
assertEquals(cset, new HashSet(parallelStreamForEached)); |
| 381 |
|
if (ordered) { |
| 382 |
|
assertEquals(iterated, iteratedForEachRemaining); |
| 383 |
|
assertEquals(iterated, tryAdvanced); |
| 384 |
|
assertEquals(iterated, spliterated); |
| 385 |
+ |
assertEquals(iterated, splitonced); |
| 386 |
|
assertEquals(iterated, forEached); |
| 387 |
+ |
assertEquals(iterated, streamForEached); |
| 388 |
|
assertEquals(iterated, removeIfed); |
| 389 |
|
} else { |
| 375 |
– |
HashSet cset = new HashSet(c); |
| 390 |
|
assertEquals(cset, new HashSet(iterated)); |
| 391 |
|
assertEquals(cset, new HashSet(iteratedForEachRemaining)); |
| 392 |
|
assertEquals(cset, new HashSet(tryAdvanced)); |
| 393 |
|
assertEquals(cset, new HashSet(spliterated)); |
| 394 |
+ |
assertEquals(cset, new HashSet(splitonced)); |
| 395 |
|
assertEquals(cset, new HashSet(forEached)); |
| 396 |
+ |
assertEquals(cset, new HashSet(streamForEached)); |
| 397 |
|
assertEquals(cset, new HashSet(removeIfed)); |
| 398 |
|
} |
| 399 |
|
if (c instanceof Deque) { |
| 561 |
|
final AtomicBoolean done = new AtomicBoolean(false); |
| 562 |
|
final Object one = impl.makeElement(1); |
| 563 |
|
final Object two = impl.makeElement(2); |
| 564 |
+ |
final Object[] emptyArray = |
| 565 |
+ |
(Object[]) java.lang.reflect.Array.newInstance(one.getClass(), 0); |
| 566 |
|
final List<Future<?>> futures; |
| 567 |
|
final Phaser threadsStarted = new Phaser(1); // register this thread |
| 568 |
< |
final List<Runnable> tasks = List.<Runnable>of( |
| 569 |
< |
() -> c.forEach(x -> assertTrue(x == one || x == two)), |
| 570 |
< |
() -> c.stream().forEach(x -> assertTrue(x == one || x == two)), |
| 568 |
> |
final Consumer checkSanity = x -> assertTrue(x == one || x == two); |
| 569 |
> |
final Runnable[] frobbers = { |
| 570 |
> |
() -> c.forEach(checkSanity), |
| 571 |
> |
() -> c.stream().forEach(checkSanity), |
| 572 |
> |
() -> c.parallelStream().forEach(checkSanity), |
| 573 |
|
() -> c.spliterator().trySplit(), |
| 574 |
|
() -> { |
| 575 |
|
Spliterator s = c.spliterator(); |
| 576 |
< |
s.tryAdvance(x -> assertTrue(x == one || x == two)); |
| 576 |
> |
s.tryAdvance(checkSanity); |
| 577 |
|
s.trySplit(); |
| 578 |
|
}, |
| 579 |
|
() -> { |
| 580 |
|
Spliterator s = c.spliterator(); |
| 581 |
< |
do {} while (s.tryAdvance(x -> assertTrue(x == one || x == two))); |
| 562 |
< |
}, |
| 563 |
< |
() -> { |
| 564 |
< |
for (Object x : c) assertTrue(x == one || x == two); |
| 581 |
> |
do {} while (s.tryAdvance(checkSanity)); |
| 582 |
|
}, |
| 583 |
+ |
() -> { for (Object x : c) checkSanity.accept(x); }, |
| 584 |
+ |
() -> { for (Object x : c.toArray()) checkSanity.accept(x); }, |
| 585 |
+ |
() -> { for (Object x : c.toArray(emptyArray)) checkSanity.accept(x); }, |
| 586 |
|
() -> { |
| 587 |
|
assertTrue(c.add(one)); |
| 588 |
|
assertTrue(c.contains(one)); |
| 594 |
|
assertTrue(c.contains(two)); |
| 595 |
|
assertTrue(c.remove(two)); |
| 596 |
|
assertFalse(c.contains(two)); |
| 597 |
< |
}) |
| 598 |
< |
.stream() |
| 597 |
> |
}, |
| 598 |
> |
}; |
| 599 |
> |
final List<Runnable> tasks = |
| 600 |
> |
Arrays.stream(frobbers) |
| 601 |
|
.filter(task -> rnd.nextBoolean()) // random subset |
| 602 |
|
.map(task -> (Runnable) () -> { |
| 603 |
|
threadsStarted.arriveAndAwaitAdvance(); |
| 609 |
|
try (PoolCleaner cleaner = cleaner(pool, done)) { |
| 610 |
|
threadsStarted.bulkRegister(tasks.size()); |
| 611 |
|
futures = tasks.stream() |
| 612 |
< |
.map(task -> pool.submit(task)) |
| 612 |
> |
.map(pool::submit) |
| 613 |
|
.collect(Collectors.toList()); |
| 614 |
|
threadsStarted.arriveAndDeregister(); |
| 615 |
|
Thread.sleep(testDurationMillis); |
| 618 |
|
assertNull(future.get(0L, MILLISECONDS)); |
| 619 |
|
} |
| 620 |
|
|
| 621 |
+ |
/** |
| 622 |
+ |
* Spliterators are either IMMUTABLE or truly late-binding or, if |
| 623 |
+ |
* concurrent, use the same "late-binding style" of returning |
| 624 |
+ |
* elements added between creation and first use. |
| 625 |
+ |
*/ |
| 626 |
+ |
public void testLateBindingStyle() { |
| 627 |
+ |
if (!testImplementationDetails) return; |
| 628 |
+ |
if (impl.klazz() == ArrayList.class) return; // for jdk8 |
| 629 |
+ |
// Immutable (snapshot) spliterators are exempt |
| 630 |
+ |
if (impl.emptyCollection().spliterator() |
| 631 |
+ |
.hasCharacteristics(Spliterator.IMMUTABLE)) |
| 632 |
+ |
return; |
| 633 |
+ |
final Object one = impl.makeElement(1); |
| 634 |
+ |
{ |
| 635 |
+ |
final Collection c = impl.emptyCollection(); |
| 636 |
+ |
final Spliterator split = c.spliterator(); |
| 637 |
+ |
c.add(one); |
| 638 |
+ |
assertTrue(split.tryAdvance(e -> { assertSame(e, one); })); |
| 639 |
+ |
assertFalse(split.tryAdvance(e -> { throw new AssertionError(); })); |
| 640 |
+ |
assertTrue(c.contains(one)); |
| 641 |
+ |
} |
| 642 |
+ |
{ |
| 643 |
+ |
final AtomicLong count = new AtomicLong(0); |
| 644 |
+ |
final Collection c = impl.emptyCollection(); |
| 645 |
+ |
final Spliterator split = c.spliterator(); |
| 646 |
+ |
c.add(one); |
| 647 |
+ |
split.forEachRemaining( |
| 648 |
+ |
e -> { assertSame(e, one); count.getAndIncrement(); }); |
| 649 |
+ |
assertEquals(1L, count.get()); |
| 650 |
+ |
assertFalse(split.tryAdvance(e -> { throw new AssertionError(); })); |
| 651 |
+ |
assertTrue(c.contains(one)); |
| 652 |
+ |
} |
| 653 |
+ |
} |
| 654 |
+ |
|
| 655 |
|
// public void testCollection8DebugFail() { |
| 656 |
|
// fail(impl.klazz().getSimpleName()); |
| 657 |
|
// } |
