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* Pat Fisher, Mike Judd. |
7 |
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*/ |
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|
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< |
import junit.framework.*; |
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> |
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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> |
import static java.util.concurrent.TimeUnit.NANOSECONDS; |
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> |
import static java.util.concurrent.TimeUnit.SECONDS; |
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> |
|
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> |
import java.util.ArrayList; |
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> |
import java.util.List; |
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> |
import java.util.NoSuchElementException; |
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import java.util.concurrent.Callable; |
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import java.util.concurrent.CancellationException; |
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import java.util.concurrent.CountDownLatch; |
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import java.util.concurrent.ExecutionException; |
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import java.util.concurrent.Executors; |
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import java.util.concurrent.ExecutorService; |
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import java.util.concurrent.Future; |
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import java.util.concurrent.FutureTask; |
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import java.util.concurrent.TimeoutException; |
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import java.util.concurrent.atomic.AtomicInteger; |
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< |
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
27 |
< |
import static java.util.concurrent.TimeUnit.SECONDS; |
28 |
< |
import java.util.*; |
26 |
> |
|
27 |
> |
import junit.framework.Test; |
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> |
import junit.framework.TestSuite; |
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|
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public class FutureTaskTest extends JSR166TestCase { |
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|
135 |
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pf.set(new Object()); |
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pf.setException(new Error()); |
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for (boolean mayInterruptIfRunning : new boolean[] { true, false }) { |
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< |
pf.cancel(true); |
138 |
> |
pf.cancel(mayInterruptIfRunning); |
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} |
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} |
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|
809 |
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} |
810 |
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} |
811 |
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|
812 |
+ |
/** |
813 |
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* timed get with most negative timeout works correctly (i.e. no |
814 |
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* underflow bug) |
815 |
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*/ |
816 |
+ |
public void testGet_NegativeInfinityTimeout() throws Exception { |
817 |
+ |
final ExecutorService pool = Executors.newFixedThreadPool(10); |
818 |
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final Runnable nop = new Runnable() { public void run() {}}; |
819 |
+ |
final FutureTask<Void> task = new FutureTask<>(nop, null); |
820 |
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final List<Future<?>> futures = new ArrayList<>(); |
821 |
+ |
Runnable r = new Runnable() { public void run() { |
822 |
+ |
for (long timeout : new long[] { 0L, -1L, Long.MIN_VALUE }) { |
823 |
+ |
try { |
824 |
+ |
task.get(timeout, NANOSECONDS); |
825 |
+ |
shouldThrow(); |
826 |
+ |
} catch (TimeoutException success) { |
827 |
+ |
} catch (Throwable fail) {threadUnexpectedException(fail);}}}}; |
828 |
+ |
for (int i = 0; i < 10; i++) |
829 |
+ |
futures.add(pool.submit(r)); |
830 |
+ |
try { |
831 |
+ |
joinPool(pool); |
832 |
+ |
for (Future<?> future : futures) |
833 |
+ |
checkCompletedNormally(future, null); |
834 |
+ |
} finally { |
835 |
+ |
task.run(); // last resort to help terminate |
836 |
+ |
} |
837 |
+ |
} |
838 |
+ |
|
839 |
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} |