29 |
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import java.util.concurrent.ThreadFactory; |
30 |
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import java.util.concurrent.ThreadPoolExecutor; |
31 |
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import java.util.concurrent.TimeUnit; |
32 |
+ |
import java.util.concurrent.atomic.AtomicInteger; |
33 |
|
|
34 |
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import junit.framework.Test; |
35 |
|
import junit.framework.TestSuite; |
625 |
|
} |
626 |
|
|
627 |
|
/** |
628 |
< |
* shutdownNow returns a list containing tasks that were not run |
628 |
> |
* shutdownNow returns a list containing tasks that were not run, |
629 |
> |
* and those tasks are drained from the queue |
630 |
|
*/ |
631 |
< |
public void testShutdownNow() { |
631 |
> |
public void testShutdownNow() throws InterruptedException { |
632 |
> |
final int poolSize = 2; |
633 |
> |
final int count = 5; |
634 |
> |
final AtomicInteger ran = new AtomicInteger(0); |
635 |
|
final ThreadPoolExecutor p = |
636 |
< |
new ThreadPoolExecutor(1, 1, |
636 |
> |
new ThreadPoolExecutor(poolSize, poolSize, |
637 |
|
LONG_DELAY_MS, MILLISECONDS, |
638 |
|
new ArrayBlockingQueue<Runnable>(10)); |
639 |
< |
List l; |
640 |
< |
try { |
641 |
< |
for (int i = 0; i < 5; i++) |
637 |
< |
p.execute(new MediumPossiblyInterruptedRunnable()); |
638 |
< |
} |
639 |
< |
finally { |
639 |
> |
CountDownLatch threadsStarted = new CountDownLatch(poolSize); |
640 |
> |
Runnable waiter = new CheckedRunnable() { public void realRun() { |
641 |
> |
threadsStarted.countDown(); |
642 |
|
try { |
643 |
< |
l = p.shutdownNow(); |
644 |
< |
} catch (SecurityException ok) { return; } |
643 |
> |
MILLISECONDS.sleep(2 * LONG_DELAY_MS); |
644 |
> |
} catch (InterruptedException success) {} |
645 |
> |
ran.getAndIncrement(); |
646 |
> |
}}; |
647 |
> |
for (int i = 0; i < count; i++) |
648 |
> |
p.execute(waiter); |
649 |
> |
assertTrue(threadsStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
650 |
> |
assertEquals(poolSize, p.getActiveCount()); |
651 |
> |
assertEquals(0, p.getCompletedTaskCount()); |
652 |
> |
final List<Runnable> queuedTasks; |
653 |
> |
try { |
654 |
> |
queuedTasks = p.shutdownNow(); |
655 |
> |
} catch (SecurityException ok) { |
656 |
> |
return; // Allowed in case test doesn't have privs |
657 |
|
} |
658 |
|
assertTrue(p.isShutdown()); |
659 |
< |
assertTrue(l.size() <= 4); |
659 |
> |
assertTrue(p.getQueue().isEmpty()); |
660 |
> |
assertEquals(count - poolSize, queuedTasks.size()); |
661 |
> |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
662 |
> |
assertTrue(p.isTerminated()); |
663 |
> |
assertEquals(poolSize, ran.get()); |
664 |
> |
assertEquals(poolSize, p.getCompletedTaskCount()); |
665 |
|
} |
666 |
|
|
667 |
|
// Exception Tests |