1 |
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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
3 |
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* Expert Group and released to the public domain, as explained at |
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< |
* http://creativecommons.org/licenses/publicdomain |
4 |
> |
* http://creativecommons.org/publicdomain/zero/1.0/ |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
6 |
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* Pat Fisher, Mike Judd. |
7 |
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*/ |
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9 |
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import junit.framework.*; |
10 |
+ |
import java.io.ByteArrayInputStream; |
11 |
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import java.io.ByteArrayOutputStream; |
12 |
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import java.io.ObjectInputStream; |
13 |
+ |
import java.io.ObjectOutputStream; |
14 |
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import java.util.ArrayList; |
15 |
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import java.util.Arrays; |
16 |
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import java.util.Date; |
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import java.util.Enumeration; |
18 |
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import java.util.List; |
19 |
+ |
import java.util.NoSuchElementException; |
20 |
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import java.util.PropertyPermission; |
21 |
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import java.util.concurrent.*; |
22 |
+ |
import java.util.concurrent.atomic.AtomicBoolean; |
23 |
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import java.util.concurrent.atomic.AtomicReference; |
24 |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
25 |
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import static java.util.concurrent.TimeUnit.NANOSECONDS; |
72 |
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* |
73 |
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* </ol> |
74 |
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* |
75 |
< |
* <p> <b>Other notes</b> |
75 |
> |
* <p><b>Other notes</b> |
76 |
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* <ul> |
77 |
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* |
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* <li> Usually, there is one testcase method per JSR166 method |
145 |
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} |
146 |
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|
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/** |
148 |
< |
* Runs all JSR166 unit tests using junit.textui.TestRunner |
148 |
> |
* Runs all JSR166 unit tests using junit.textui.TestRunner. |
149 |
> |
* Optional command line arg provides the number of iterations to |
150 |
> |
* repeat running the tests. |
151 |
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*/ |
152 |
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public static void main(String[] args) { |
153 |
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if (useSecurityManager) { |
265 |
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return 50; |
266 |
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} |
267 |
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|
255 |
– |
|
268 |
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/** |
269 |
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* Sets delays as multiples of SHORT_DELAY. |
270 |
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*/ |
272 |
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SHORT_DELAY_MS = getShortDelay(); |
273 |
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SMALL_DELAY_MS = SHORT_DELAY_MS * 5; |
274 |
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MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10; |
275 |
< |
LONG_DELAY_MS = SHORT_DELAY_MS * 50; |
275 |
> |
LONG_DELAY_MS = SHORT_DELAY_MS * 200; |
276 |
> |
} |
277 |
> |
|
278 |
> |
/** |
279 |
> |
* Returns a timeout in milliseconds to be used in tests that |
280 |
> |
* verify that operations block or time out. |
281 |
> |
*/ |
282 |
> |
long timeoutMillis() { |
283 |
> |
return SHORT_DELAY_MS / 4; |
284 |
> |
} |
285 |
> |
|
286 |
> |
/** |
287 |
> |
* Returns a new Date instance representing a time delayMillis |
288 |
> |
* milliseconds in the future. |
289 |
> |
*/ |
290 |
> |
Date delayedDate(long delayMillis) { |
291 |
> |
return new Date(System.currentTimeMillis() + delayMillis); |
292 |
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} |
293 |
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|
294 |
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/** |
312 |
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} |
313 |
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|
314 |
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/** |
315 |
+ |
* Extra checks that get done for all test cases. |
316 |
+ |
* |
317 |
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* Triggers test case failure if any thread assertions have failed, |
318 |
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* by rethrowing, in the test harness thread, any exception recorded |
319 |
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* earlier by threadRecordFailure. |
320 |
+ |
* |
321 |
+ |
* Triggers test case failure if interrupt status is set in the main thread. |
322 |
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*/ |
323 |
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public void tearDown() throws Exception { |
324 |
< |
Throwable t = threadFailure.getAndSet(null); |
324 |
> |
Throwable t = threadFailure.getAndSet(null); |
325 |
|
if (t != null) { |
326 |
|
if (t instanceof Error) |
327 |
|
throw (Error) t; |
336 |
|
throw afe; |
337 |
|
} |
338 |
|
} |
339 |
+ |
|
340 |
+ |
if (Thread.interrupted()) |
341 |
+ |
throw new AssertionFailedError("interrupt status set in main thread"); |
342 |
|
} |
343 |
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|
344 |
|
/** |
470 |
|
else { |
471 |
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AssertionFailedError afe = |
472 |
|
new AssertionFailedError("unexpected exception: " + t); |
473 |
< |
t.initCause(t); |
473 |
> |
afe.initCause(t); |
474 |
|
throw afe; |
475 |
|
} |
476 |
|
} |
477 |
|
|
478 |
|
/** |
479 |
+ |
* Delays, via Thread.sleep, for the given millisecond delay, but |
480 |
+ |
* if the sleep is shorter than specified, may re-sleep or yield |
481 |
+ |
* until time elapses. |
482 |
+ |
*/ |
483 |
+ |
static void delay(long millis) throws InterruptedException { |
484 |
+ |
long startTime = System.nanoTime(); |
485 |
+ |
long ns = millis * 1000 * 1000; |
486 |
+ |
for (;;) { |
487 |
+ |
if (millis > 0L) |
488 |
+ |
Thread.sleep(millis); |
489 |
+ |
else // too short to sleep |
490 |
+ |
Thread.yield(); |
491 |
+ |
long d = ns - (System.nanoTime() - startTime); |
492 |
+ |
if (d > 0L) |
493 |
+ |
millis = d / (1000 * 1000); |
494 |
+ |
else |
495 |
+ |
break; |
496 |
+ |
} |
497 |
+ |
} |
498 |
+ |
|
499 |
+ |
/** |
500 |
|
* Waits out termination of a thread pool or fails doing so. |
501 |
|
*/ |
502 |
< |
public void joinPool(ExecutorService exec) { |
502 |
> |
void joinPool(ExecutorService exec) { |
503 |
|
try { |
504 |
|
exec.shutdown(); |
505 |
|
assertTrue("ExecutorService did not terminate in a timely manner", |
506 |
< |
exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
506 |
> |
exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)); |
507 |
|
} catch (SecurityException ok) { |
508 |
|
// Allowed in case test doesn't have privs |
509 |
|
} catch (InterruptedException ie) { |
511 |
|
} |
512 |
|
} |
513 |
|
|
514 |
+ |
/** |
515 |
+ |
* A debugging tool to print all stack traces, as jstack does. |
516 |
+ |
*/ |
517 |
+ |
void printAllStackTraces() { |
518 |
+ |
System.err.println( |
519 |
+ |
Arrays.toString( |
520 |
+ |
java.lang.management.ManagementFactory.getThreadMXBean() |
521 |
+ |
.dumpAllThreads(true, true))); |
522 |
+ |
} |
523 |
+ |
|
524 |
+ |
/** |
525 |
+ |
* Checks that thread does not terminate within the default |
526 |
+ |
* millisecond delay of {@code timeoutMillis()}. |
527 |
+ |
*/ |
528 |
+ |
void assertThreadStaysAlive(Thread thread) { |
529 |
+ |
assertThreadStaysAlive(thread, timeoutMillis()); |
530 |
+ |
} |
531 |
+ |
|
532 |
+ |
/** |
533 |
+ |
* Checks that thread does not terminate within the given millisecond delay. |
534 |
+ |
*/ |
535 |
+ |
void assertThreadStaysAlive(Thread thread, long millis) { |
536 |
+ |
try { |
537 |
+ |
// No need to optimize the failing case via Thread.join. |
538 |
+ |
delay(millis); |
539 |
+ |
assertTrue(thread.isAlive()); |
540 |
+ |
} catch (InterruptedException ie) { |
541 |
+ |
fail("Unexpected InterruptedException"); |
542 |
+ |
} |
543 |
+ |
} |
544 |
+ |
|
545 |
+ |
/** |
546 |
+ |
* Checks that the threads do not terminate within the default |
547 |
+ |
* millisecond delay of {@code timeoutMillis()}. |
548 |
+ |
*/ |
549 |
+ |
void assertThreadsStayAlive(Thread... threads) { |
550 |
+ |
assertThreadsStayAlive(timeoutMillis(), threads); |
551 |
+ |
} |
552 |
+ |
|
553 |
+ |
/** |
554 |
+ |
* Checks that the threads do not terminate within the given millisecond delay. |
555 |
+ |
*/ |
556 |
+ |
void assertThreadsStayAlive(long millis, Thread... threads) { |
557 |
+ |
try { |
558 |
+ |
// No need to optimize the failing case via Thread.join. |
559 |
+ |
delay(millis); |
560 |
+ |
for (Thread thread : threads) |
561 |
+ |
assertTrue(thread.isAlive()); |
562 |
+ |
} catch (InterruptedException ie) { |
563 |
+ |
fail("Unexpected InterruptedException"); |
564 |
+ |
} |
565 |
+ |
} |
566 |
+ |
|
567 |
+ |
/** |
568 |
+ |
* Checks that future.get times out, with the default timeout of |
569 |
+ |
* {@code timeoutMillis()}. |
570 |
+ |
*/ |
571 |
+ |
void assertFutureTimesOut(Future future) { |
572 |
+ |
assertFutureTimesOut(future, timeoutMillis()); |
573 |
+ |
} |
574 |
+ |
|
575 |
+ |
/** |
576 |
+ |
* Checks that future.get times out, with the given millisecond timeout. |
577 |
+ |
*/ |
578 |
+ |
void assertFutureTimesOut(Future future, long timeoutMillis) { |
579 |
+ |
long startTime = System.nanoTime(); |
580 |
+ |
try { |
581 |
+ |
future.get(timeoutMillis, MILLISECONDS); |
582 |
+ |
shouldThrow(); |
583 |
+ |
} catch (TimeoutException success) { |
584 |
+ |
} catch (Exception e) { |
585 |
+ |
threadUnexpectedException(e); |
586 |
+ |
} finally { future.cancel(true); } |
587 |
+ |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
588 |
+ |
} |
589 |
|
|
590 |
|
/** |
591 |
|
* Fails with message "should throw exception". |
638 |
|
SecurityManager sm = System.getSecurityManager(); |
639 |
|
if (sm == null) { |
640 |
|
r.run(); |
641 |
+ |
} |
642 |
+ |
runWithSecurityManagerWithPermissions(r, permissions); |
643 |
+ |
} |
644 |
+ |
|
645 |
+ |
/** |
646 |
+ |
* Runs Runnable r with a security policy that permits precisely |
647 |
+ |
* the specified permissions. If there is no current security |
648 |
+ |
* manager, a temporary one is set for the duration of the |
649 |
+ |
* Runnable. We require that any security manager permit |
650 |
+ |
* getPolicy/setPolicy. |
651 |
+ |
*/ |
652 |
+ |
public void runWithSecurityManagerWithPermissions(Runnable r, |
653 |
+ |
Permission... permissions) { |
654 |
+ |
SecurityManager sm = System.getSecurityManager(); |
655 |
+ |
if (sm == null) { |
656 |
|
Policy savedPolicy = Policy.getPolicy(); |
657 |
|
try { |
658 |
|
Policy.setPolicy(permissivePolicy()); |
659 |
|
System.setSecurityManager(new SecurityManager()); |
660 |
< |
runWithPermissions(r, permissions); |
660 |
> |
runWithSecurityManagerWithPermissions(r, permissions); |
661 |
|
} finally { |
662 |
|
System.setSecurityManager(null); |
663 |
|
Policy.setPolicy(savedPolicy); |
705 |
|
return perms.implies(p); |
706 |
|
} |
707 |
|
public void refresh() {} |
708 |
+ |
public String toString() { |
709 |
+ |
List<Permission> ps = new ArrayList<Permission>(); |
710 |
+ |
for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();) |
711 |
+ |
ps.add(e.nextElement()); |
712 |
+ |
return "AdjustablePolicy with permissions " + ps; |
713 |
+ |
} |
714 |
|
} |
715 |
|
|
716 |
|
/** |
738 |
|
*/ |
739 |
|
void sleep(long millis) { |
740 |
|
try { |
741 |
< |
Thread.sleep(millis); |
741 |
> |
delay(millis); |
742 |
|
} catch (InterruptedException ie) { |
743 |
|
AssertionFailedError afe = |
744 |
|
new AssertionFailedError("Unexpected InterruptedException"); |
748 |
|
} |
749 |
|
|
750 |
|
/** |
751 |
< |
* Sleeps until the timeout has elapsed, or interrupted. |
600 |
< |
* Does <em>NOT</em> throw InterruptedException. |
601 |
< |
*/ |
602 |
< |
void sleepTillInterrupted(long timeoutMillis) { |
603 |
< |
try { |
604 |
< |
Thread.sleep(timeoutMillis); |
605 |
< |
} catch (InterruptedException wakeup) {} |
606 |
< |
} |
607 |
< |
|
608 |
< |
/** |
609 |
< |
* Waits up to the specified number of milliseconds for the given |
751 |
> |
* Spin-waits up to the specified number of milliseconds for the given |
752 |
|
* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING. |
753 |
|
*/ |
754 |
|
void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) { |
755 |
< |
long timeoutNanos = timeoutMillis * 1000L * 1000L; |
614 |
< |
long t0 = System.nanoTime(); |
755 |
> |
long startTime = System.nanoTime(); |
756 |
|
for (;;) { |
757 |
|
Thread.State s = thread.getState(); |
758 |
|
if (s == Thread.State.BLOCKED || |
761 |
|
return; |
762 |
|
else if (s == Thread.State.TERMINATED) |
763 |
|
fail("Unexpected thread termination"); |
764 |
< |
else if (System.nanoTime() - t0 > timeoutNanos) { |
764 |
> |
else if (millisElapsedSince(startTime) > timeoutMillis) { |
765 |
|
threadAssertTrue(thread.isAlive()); |
766 |
|
return; |
767 |
|
} |
770 |
|
} |
771 |
|
|
772 |
|
/** |
773 |
+ |
* Waits up to LONG_DELAY_MS for the given thread to enter a wait |
774 |
+ |
* state: BLOCKED, WAITING, or TIMED_WAITING. |
775 |
+ |
*/ |
776 |
+ |
void waitForThreadToEnterWaitState(Thread thread) { |
777 |
+ |
waitForThreadToEnterWaitState(thread, LONG_DELAY_MS); |
778 |
+ |
} |
779 |
+ |
|
780 |
+ |
/** |
781 |
|
* Returns the number of milliseconds since time given by |
782 |
|
* startNanoTime, which must have been previously returned from a |
783 |
|
* call to {@link System.nanoTime()}. |
807 |
|
} catch (InterruptedException ie) { |
808 |
|
threadUnexpectedException(ie); |
809 |
|
} finally { |
810 |
< |
if (t.isAlive()) { |
810 |
> |
if (t.getState() != Thread.State.TERMINATED) { |
811 |
|
t.interrupt(); |
812 |
|
fail("Test timed out"); |
813 |
|
} |
814 |
|
} |
815 |
|
} |
816 |
|
|
817 |
+ |
/** |
818 |
+ |
* Waits for LONG_DELAY_MS milliseconds for the thread to |
819 |
+ |
* terminate (using {@link Thread#join(long)}), else interrupts |
820 |
+ |
* the thread (in the hope that it may terminate later) and fails. |
821 |
+ |
*/ |
822 |
+ |
void awaitTermination(Thread t) { |
823 |
+ |
awaitTermination(t, LONG_DELAY_MS); |
824 |
+ |
} |
825 |
+ |
|
826 |
|
// Some convenient Runnable classes |
827 |
|
|
828 |
|
public abstract class CheckedRunnable implements Runnable { |
885 |
|
realRun(); |
886 |
|
threadShouldThrow("InterruptedException"); |
887 |
|
} catch (InterruptedException success) { |
888 |
+ |
threadAssertFalse(Thread.interrupted()); |
889 |
|
} catch (Throwable t) { |
890 |
|
threadUnexpectedException(t); |
891 |
|
} |
915 |
|
threadShouldThrow("InterruptedException"); |
916 |
|
return result; |
917 |
|
} catch (InterruptedException success) { |
918 |
+ |
threadAssertFalse(Thread.interrupted()); |
919 |
|
} catch (Throwable t) { |
920 |
|
threadUnexpectedException(t); |
921 |
|
} |
947 |
|
}}; |
948 |
|
} |
949 |
|
|
950 |
+ |
public Runnable awaiter(final CountDownLatch latch) { |
951 |
+ |
return new CheckedRunnable() { |
952 |
+ |
public void realRun() throws InterruptedException { |
953 |
+ |
await(latch); |
954 |
+ |
}}; |
955 |
+ |
} |
956 |
+ |
|
957 |
+ |
public void await(CountDownLatch latch) { |
958 |
+ |
try { |
959 |
+ |
assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS)); |
960 |
+ |
} catch (Throwable t) { |
961 |
+ |
threadUnexpectedException(t); |
962 |
+ |
} |
963 |
+ |
} |
964 |
+ |
|
965 |
+ |
public void await(Semaphore semaphore) { |
966 |
+ |
try { |
967 |
+ |
assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS)); |
968 |
+ |
} catch (Throwable t) { |
969 |
+ |
threadUnexpectedException(t); |
970 |
+ |
} |
971 |
+ |
} |
972 |
+ |
|
973 |
+ |
// /** |
974 |
+ |
// * Spin-waits up to LONG_DELAY_MS until flag becomes true. |
975 |
+ |
// */ |
976 |
+ |
// public void await(AtomicBoolean flag) { |
977 |
+ |
// await(flag, LONG_DELAY_MS); |
978 |
+ |
// } |
979 |
+ |
|
980 |
+ |
// /** |
981 |
+ |
// * Spin-waits up to the specified timeout until flag becomes true. |
982 |
+ |
// */ |
983 |
+ |
// public void await(AtomicBoolean flag, long timeoutMillis) { |
984 |
+ |
// long startTime = System.nanoTime(); |
985 |
+ |
// while (!flag.get()) { |
986 |
+ |
// if (millisElapsedSince(startTime) > timeoutMillis) |
987 |
+ |
// throw new AssertionFailedError("timed out"); |
988 |
+ |
// Thread.yield(); |
989 |
+ |
// } |
990 |
+ |
// } |
991 |
+ |
|
992 |
|
public static class NPETask implements Callable<String> { |
993 |
|
public String call() { throw new NullPointerException(); } |
994 |
|
} |
999 |
|
|
1000 |
|
public class ShortRunnable extends CheckedRunnable { |
1001 |
|
protected void realRun() throws Throwable { |
1002 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1002 |
> |
delay(SHORT_DELAY_MS); |
1003 |
|
} |
1004 |
|
} |
1005 |
|
|
1006 |
|
public class ShortInterruptedRunnable extends CheckedInterruptedRunnable { |
1007 |
|
protected void realRun() throws InterruptedException { |
1008 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1008 |
> |
delay(SHORT_DELAY_MS); |
1009 |
|
} |
1010 |
|
} |
1011 |
|
|
1012 |
|
public class SmallRunnable extends CheckedRunnable { |
1013 |
|
protected void realRun() throws Throwable { |
1014 |
< |
Thread.sleep(SMALL_DELAY_MS); |
1014 |
> |
delay(SMALL_DELAY_MS); |
1015 |
|
} |
1016 |
|
} |
1017 |
|
|
1018 |
|
public class SmallPossiblyInterruptedRunnable extends CheckedRunnable { |
1019 |
|
protected void realRun() { |
1020 |
|
try { |
1021 |
< |
Thread.sleep(SMALL_DELAY_MS); |
1021 |
> |
delay(SMALL_DELAY_MS); |
1022 |
|
} catch (InterruptedException ok) {} |
1023 |
|
} |
1024 |
|
} |
1025 |
|
|
1026 |
|
public class SmallCallable extends CheckedCallable { |
1027 |
|
protected Object realCall() throws InterruptedException { |
1028 |
< |
Thread.sleep(SMALL_DELAY_MS); |
1028 |
> |
delay(SMALL_DELAY_MS); |
1029 |
|
return Boolean.TRUE; |
1030 |
|
} |
1031 |
|
} |
1032 |
|
|
1033 |
|
public class MediumRunnable extends CheckedRunnable { |
1034 |
|
protected void realRun() throws Throwable { |
1035 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
1035 |
> |
delay(MEDIUM_DELAY_MS); |
1036 |
|
} |
1037 |
|
} |
1038 |
|
|
1039 |
|
public class MediumInterruptedRunnable extends CheckedInterruptedRunnable { |
1040 |
|
protected void realRun() throws InterruptedException { |
1041 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
1041 |
> |
delay(MEDIUM_DELAY_MS); |
1042 |
|
} |
1043 |
|
} |
1044 |
|
|
1046 |
|
return new CheckedRunnable() { |
1047 |
|
protected void realRun() { |
1048 |
|
try { |
1049 |
< |
Thread.sleep(timeoutMillis); |
1049 |
> |
delay(timeoutMillis); |
1050 |
|
} catch (InterruptedException ok) {} |
1051 |
|
}}; |
1052 |
|
} |
1054 |
|
public class MediumPossiblyInterruptedRunnable extends CheckedRunnable { |
1055 |
|
protected void realRun() { |
1056 |
|
try { |
1057 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
1057 |
> |
delay(MEDIUM_DELAY_MS); |
1058 |
|
} catch (InterruptedException ok) {} |
1059 |
|
} |
1060 |
|
} |
1062 |
|
public class LongPossiblyInterruptedRunnable extends CheckedRunnable { |
1063 |
|
protected void realRun() { |
1064 |
|
try { |
1065 |
< |
Thread.sleep(LONG_DELAY_MS); |
1065 |
> |
delay(LONG_DELAY_MS); |
1066 |
|
} catch (InterruptedException ok) {} |
1067 |
|
} |
1068 |
|
} |
1086 |
|
public boolean isDone() { return done; } |
1087 |
|
public void run() { |
1088 |
|
try { |
1089 |
< |
Thread.sleep(timeoutMillis); |
1089 |
> |
delay(timeoutMillis); |
1090 |
|
done = true; |
1091 |
|
} catch (InterruptedException ok) {} |
1092 |
|
} |
1097 |
|
public volatile boolean done = false; |
1098 |
|
public void run() { |
1099 |
|
try { |
1100 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1100 |
> |
delay(SHORT_DELAY_MS); |
1101 |
|
done = true; |
1102 |
|
} catch (InterruptedException ok) {} |
1103 |
|
} |
1107 |
|
public volatile boolean done = false; |
1108 |
|
public void run() { |
1109 |
|
try { |
1110 |
< |
Thread.sleep(SMALL_DELAY_MS); |
1110 |
> |
delay(SMALL_DELAY_MS); |
1111 |
|
done = true; |
1112 |
|
} catch (InterruptedException ok) {} |
1113 |
|
} |
1117 |
|
public volatile boolean done = false; |
1118 |
|
public void run() { |
1119 |
|
try { |
1120 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
1120 |
> |
delay(MEDIUM_DELAY_MS); |
1121 |
|
done = true; |
1122 |
|
} catch (InterruptedException ok) {} |
1123 |
|
} |
1127 |
|
public volatile boolean done = false; |
1128 |
|
public void run() { |
1129 |
|
try { |
1130 |
< |
Thread.sleep(LONG_DELAY_MS); |
1130 |
> |
delay(LONG_DELAY_MS); |
1131 |
|
done = true; |
1132 |
|
} catch (InterruptedException ok) {} |
1133 |
|
} |
1144 |
|
public volatile boolean done = false; |
1145 |
|
public Object call() { |
1146 |
|
try { |
1147 |
< |
Thread.sleep(SMALL_DELAY_MS); |
1147 |
> |
delay(SMALL_DELAY_MS); |
1148 |
|
done = true; |
1149 |
|
} catch (InterruptedException ok) {} |
1150 |
|
return Boolean.TRUE; |
1191 |
|
} |
1192 |
|
|
1193 |
|
/** |
1194 |
< |
* A CyclicBarrier that fails with AssertionFailedErrors instead |
1195 |
< |
* of throwing checked exceptions. |
1194 |
> |
* A CyclicBarrier that uses timed await and fails with |
1195 |
> |
* AssertionFailedErrors instead of throwing checked exceptions. |
1196 |
|
*/ |
1197 |
|
public class CheckedBarrier extends CyclicBarrier { |
1198 |
|
public CheckedBarrier(int parties) { super(parties); } |
1199 |
|
|
1200 |
|
public int await() { |
1201 |
|
try { |
1202 |
< |
return super.await(); |
1202 |
> |
return super.await(2 * LONG_DELAY_MS, MILLISECONDS); |
1203 |
> |
} catch (TimeoutException e) { |
1204 |
> |
throw new AssertionFailedError("timed out"); |
1205 |
|
} catch (Exception e) { |
1206 |
|
AssertionFailedError afe = |
1207 |
|
new AssertionFailedError("Unexpected exception: " + e); |
1211 |
|
} |
1212 |
|
} |
1213 |
|
|
1214 |
+ |
void checkEmpty(BlockingQueue q) { |
1215 |
+ |
try { |
1216 |
+ |
assertTrue(q.isEmpty()); |
1217 |
+ |
assertEquals(0, q.size()); |
1218 |
+ |
assertNull(q.peek()); |
1219 |
+ |
assertNull(q.poll()); |
1220 |
+ |
assertNull(q.poll(0, MILLISECONDS)); |
1221 |
+ |
assertEquals(q.toString(), "[]"); |
1222 |
+ |
assertTrue(Arrays.equals(q.toArray(), new Object[0])); |
1223 |
+ |
assertFalse(q.iterator().hasNext()); |
1224 |
+ |
try { |
1225 |
+ |
q.element(); |
1226 |
+ |
shouldThrow(); |
1227 |
+ |
} catch (NoSuchElementException success) {} |
1228 |
+ |
try { |
1229 |
+ |
q.iterator().next(); |
1230 |
+ |
shouldThrow(); |
1231 |
+ |
} catch (NoSuchElementException success) {} |
1232 |
+ |
try { |
1233 |
+ |
q.remove(); |
1234 |
+ |
shouldThrow(); |
1235 |
+ |
} catch (NoSuchElementException success) {} |
1236 |
+ |
} catch (InterruptedException ie) { |
1237 |
+ |
threadUnexpectedException(ie); |
1238 |
+ |
} |
1239 |
+ |
} |
1240 |
+ |
|
1241 |
+ |
void assertSerialEquals(Object x, Object y) { |
1242 |
+ |
assertTrue(Arrays.equals(serialBytes(x), serialBytes(y))); |
1243 |
+ |
} |
1244 |
+ |
|
1245 |
+ |
void assertNotSerialEquals(Object x, Object y) { |
1246 |
+ |
assertFalse(Arrays.equals(serialBytes(x), serialBytes(y))); |
1247 |
+ |
} |
1248 |
+ |
|
1249 |
+ |
byte[] serialBytes(Object o) { |
1250 |
+ |
try { |
1251 |
+ |
ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
1252 |
+ |
ObjectOutputStream oos = new ObjectOutputStream(bos); |
1253 |
+ |
oos.writeObject(o); |
1254 |
+ |
oos.flush(); |
1255 |
+ |
oos.close(); |
1256 |
+ |
return bos.toByteArray(); |
1257 |
+ |
} catch (Throwable t) { |
1258 |
+ |
threadUnexpectedException(t); |
1259 |
+ |
return new byte[0]; |
1260 |
+ |
} |
1261 |
+ |
} |
1262 |
+ |
|
1263 |
+ |
@SuppressWarnings("unchecked") |
1264 |
+ |
<T> T serialClone(T o) { |
1265 |
+ |
try { |
1266 |
+ |
ObjectInputStream ois = new ObjectInputStream |
1267 |
+ |
(new ByteArrayInputStream(serialBytes(o))); |
1268 |
+ |
T clone = (T) ois.readObject(); |
1269 |
+ |
assertSame(o.getClass(), clone.getClass()); |
1270 |
+ |
return clone; |
1271 |
+ |
} catch (Throwable t) { |
1272 |
+ |
threadUnexpectedException(t); |
1273 |
+ |
return null; |
1274 |
+ |
} |
1275 |
+ |
} |
1276 |
|
} |