12 |
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import java.io.ObjectInputStream; |
13 |
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import java.io.ObjectOutputStream; |
14 |
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import java.util.Arrays; |
15 |
+ |
import java.util.Date; |
16 |
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import java.util.NoSuchElementException; |
17 |
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import java.util.PropertyPermission; |
18 |
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import java.util.concurrent.*; |
19 |
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import java.util.concurrent.atomic.AtomicBoolean; |
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import java.util.concurrent.atomic.AtomicReference; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import static java.util.concurrent.TimeUnit.NANOSECONDS; |
260 |
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return 50; |
261 |
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} |
262 |
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|
261 |
– |
|
263 |
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/** |
264 |
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* Sets delays as multiples of SHORT_DELAY. |
265 |
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*/ |
271 |
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} |
272 |
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|
273 |
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/** |
274 |
+ |
* Returns a timeout in milliseconds to be used in tests that |
275 |
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* verify that operations block or time out. |
276 |
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*/ |
277 |
+ |
long timeoutMillis() { |
278 |
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return SHORT_DELAY_MS / 4; |
279 |
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} |
280 |
+ |
|
281 |
+ |
/** |
282 |
+ |
* Returns a new Date instance representing a time delayMillis |
283 |
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* milliseconds in the future. |
284 |
+ |
*/ |
285 |
+ |
Date delayedDate(long delayMillis) { |
286 |
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return new Date(System.currentTimeMillis() + delayMillis); |
287 |
+ |
} |
288 |
+ |
|
289 |
+ |
/** |
290 |
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* The first exception encountered if any threadAssertXXX method fails. |
291 |
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*/ |
292 |
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private final AtomicReference<Throwable> threadFailure |
307 |
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} |
308 |
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|
309 |
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/** |
310 |
+ |
* Extra checks that get done for all test cases. |
311 |
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* |
312 |
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* Triggers test case failure if any thread assertions have failed, |
313 |
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* by rethrowing, in the test harness thread, any exception recorded |
314 |
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* earlier by threadRecordFailure. |
315 |
+ |
* |
316 |
+ |
* Triggers test case failure if interrupt status is set in the main thread. |
317 |
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*/ |
318 |
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public void tearDown() throws Exception { |
319 |
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Throwable t = threadFailure.getAndSet(null); |
331 |
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throw afe; |
332 |
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} |
333 |
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} |
334 |
+ |
|
335 |
+ |
if (Thread.interrupted()) |
336 |
+ |
throw new AssertionFailedError("interrupt status set in main thread"); |
337 |
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} |
338 |
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|
339 |
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/** |
465 |
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else { |
466 |
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AssertionFailedError afe = |
467 |
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new AssertionFailedError("unexpected exception: " + t); |
468 |
< |
t.initCause(t); |
468 |
> |
afe.initCause(t); |
469 |
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throw afe; |
470 |
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} |
471 |
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} |
472 |
|
|
473 |
|
/** |
474 |
< |
* Delays, via Thread.sleep for the given millisecond delay, but |
474 |
> |
* Delays, via Thread.sleep, for the given millisecond delay, but |
475 |
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* if the sleep is shorter than specified, may re-sleep or yield |
476 |
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* until time elapses. |
477 |
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*/ |
478 |
< |
public static void delay(long millis) throws InterruptedException { |
478 |
> |
static void delay(long millis) throws InterruptedException { |
479 |
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long startTime = System.nanoTime(); |
480 |
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long ns = millis * 1000 * 1000; |
481 |
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for (;;) { |
494 |
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/** |
495 |
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* Waits out termination of a thread pool or fails doing so. |
496 |
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*/ |
497 |
< |
public void joinPool(ExecutorService exec) { |
497 |
> |
void joinPool(ExecutorService exec) { |
498 |
|
try { |
499 |
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exec.shutdown(); |
500 |
|
assertTrue("ExecutorService did not terminate in a timely manner", |
507 |
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} |
508 |
|
|
509 |
|
/** |
510 |
+ |
* Checks that thread does not terminate within the default |
511 |
+ |
* millisecond delay of {@code timeoutMillis()}. |
512 |
+ |
*/ |
513 |
+ |
void assertThreadStaysAlive(Thread thread) { |
514 |
+ |
assertThreadStaysAlive(thread, timeoutMillis()); |
515 |
+ |
} |
516 |
+ |
|
517 |
+ |
/** |
518 |
|
* Checks that thread does not terminate within the given millisecond delay. |
519 |
|
*/ |
520 |
< |
public void assertThreadStaysAlive(Thread thread, long millis) { |
520 |
> |
void assertThreadStaysAlive(Thread thread, long millis) { |
521 |
|
try { |
522 |
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// No need to optimize the failing case via Thread.join. |
523 |
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delay(millis); |
528 |
|
} |
529 |
|
|
530 |
|
/** |
531 |
+ |
* Checks that future.get times out, with the default timeout of |
532 |
+ |
* {@code timeoutMillis()}. |
533 |
+ |
*/ |
534 |
+ |
void assertFutureTimesOut(Future future) { |
535 |
+ |
assertFutureTimesOut(future, timeoutMillis()); |
536 |
+ |
} |
537 |
+ |
|
538 |
+ |
/** |
539 |
+ |
* Checks that future.get times out, with the given millisecond timeout. |
540 |
+ |
*/ |
541 |
+ |
void assertFutureTimesOut(Future future, long timeoutMillis) { |
542 |
+ |
long startTime = System.nanoTime(); |
543 |
+ |
try { |
544 |
+ |
future.get(timeoutMillis, MILLISECONDS); |
545 |
+ |
shouldThrow(); |
546 |
+ |
} catch (TimeoutException success) { |
547 |
+ |
} catch (Exception e) { |
548 |
+ |
threadUnexpectedException(e); |
549 |
+ |
} finally { future.cancel(true); } |
550 |
+ |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
551 |
+ |
} |
552 |
+ |
|
553 |
+ |
/** |
554 |
|
* Fails with message "should throw exception". |
555 |
|
*/ |
556 |
|
public void shouldThrow() { |
690 |
|
} |
691 |
|
|
692 |
|
/** |
638 |
– |
* Sleeps until the timeout has elapsed, or interrupted. |
639 |
– |
* Does <em>NOT</em> throw InterruptedException. |
640 |
– |
*/ |
641 |
– |
void sleepTillInterrupted(long timeoutMillis) { |
642 |
– |
try { |
643 |
– |
Thread.sleep(timeoutMillis); |
644 |
– |
} catch (InterruptedException wakeup) {} |
645 |
– |
} |
646 |
– |
|
647 |
– |
/** |
693 |
|
* Waits up to the specified number of milliseconds for the given |
694 |
|
* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING. |
695 |
|
*/ |
750 |
|
} catch (InterruptedException ie) { |
751 |
|
threadUnexpectedException(ie); |
752 |
|
} finally { |
753 |
< |
if (t.isAlive()) { |
753 |
> |
if (t.getState() != Thread.State.TERMINATED) { |
754 |
|
t.interrupt(); |
755 |
|
fail("Test timed out"); |
756 |
|
} |
828 |
|
realRun(); |
829 |
|
threadShouldThrow("InterruptedException"); |
830 |
|
} catch (InterruptedException success) { |
831 |
+ |
threadAssertFalse(Thread.interrupted()); |
832 |
|
} catch (Throwable t) { |
833 |
|
threadUnexpectedException(t); |
834 |
|
} |
858 |
|
threadShouldThrow("InterruptedException"); |
859 |
|
return result; |
860 |
|
} catch (InterruptedException success) { |
861 |
+ |
threadAssertFalse(Thread.interrupted()); |
862 |
|
} catch (Throwable t) { |
863 |
|
threadUnexpectedException(t); |
864 |
|
} |
905 |
|
} |
906 |
|
} |
907 |
|
|
908 |
+ |
// /** |
909 |
+ |
// * Spin-waits up to LONG_DELAY_MS until flag becomes true. |
910 |
+ |
// */ |
911 |
+ |
// public void await(AtomicBoolean flag) { |
912 |
+ |
// await(flag, LONG_DELAY_MS); |
913 |
+ |
// } |
914 |
+ |
|
915 |
+ |
// /** |
916 |
+ |
// * Spin-waits up to the specified timeout until flag becomes true. |
917 |
+ |
// */ |
918 |
+ |
// public void await(AtomicBoolean flag, long timeoutMillis) { |
919 |
+ |
// long startTime = System.nanoTime(); |
920 |
+ |
// while (!flag.get()) { |
921 |
+ |
// if (millisElapsedSince(startTime) > timeoutMillis) |
922 |
+ |
// throw new AssertionFailedError("timed out"); |
923 |
+ |
// Thread.yield(); |
924 |
+ |
// } |
925 |
+ |
// } |
926 |
+ |
|
927 |
|
public static class NPETask implements Callable<String> { |
928 |
|
public String call() { throw new NullPointerException(); } |
929 |
|
} |
1126 |
|
} |
1127 |
|
|
1128 |
|
/** |
1129 |
< |
* A CyclicBarrier that fails with AssertionFailedErrors instead |
1130 |
< |
* of throwing checked exceptions. |
1129 |
> |
* A CyclicBarrier that uses timed await and fails with |
1130 |
> |
* AssertionFailedErrors instead of throwing checked exceptions. |
1131 |
|
*/ |
1132 |
|
public class CheckedBarrier extends CyclicBarrier { |
1133 |
|
public CheckedBarrier(int parties) { super(parties); } |
1134 |
|
|
1135 |
|
public int await() { |
1136 |
|
try { |
1137 |
< |
return super.await(); |
1137 |
> |
return super.await(2 * LONG_DELAY_MS, MILLISECONDS); |
1138 |
> |
} catch (TimeoutException e) { |
1139 |
> |
throw new AssertionFailedError("timed out"); |
1140 |
|
} catch (Exception e) { |
1141 |
|
AssertionFailedError afe = |
1142 |
|
new AssertionFailedError("Unexpected exception: " + e); |
1146 |
|
} |
1147 |
|
} |
1148 |
|
|
1149 |
< |
public void checkEmpty(BlockingQueue q) { |
1149 |
> |
void checkEmpty(BlockingQueue q) { |
1150 |
|
try { |
1151 |
|
assertTrue(q.isEmpty()); |
1152 |
|
assertEquals(0, q.size()); |
1174 |
|
} |
1175 |
|
|
1176 |
|
@SuppressWarnings("unchecked") |
1177 |
< |
public <T> T serialClone(T o) { |
1177 |
> |
<T> T serialClone(T o) { |
1178 |
|
try { |
1179 |
|
ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
1180 |
|
ObjectOutputStream oos = new ObjectOutputStream(bos); |