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/* |
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* Written by members of JCP JSR-166 Expert Group and released to the |
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* public domain. Use, modify, and redistribute this code in any way |
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* without acknowledgement. Other contributors include Andrew Wright, |
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* Jeffrey Hayes, Pat Fischer, Mike Judd. |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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*/ |
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import junit.framework.*; |
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import java.util.concurrent.*; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import static java.util.concurrent.TimeUnit.SECONDS; |
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import java.util.*; |
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|
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public class FutureTaskTest extends TestCase { |
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public class FutureTaskTest extends JSR166TestCase { |
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|
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public static void main(String[] args) { |
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junit.textui.TestRunner.run (suite()); |
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junit.textui.TestRunner.run(suite()); |
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} |
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public static Test suite() { |
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return new TestSuite(FutureTaskTest.class); |
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return new TestSuite(FutureTaskTest.class); |
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} |
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|
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private static long SHORT_DELAY_MS = 100; |
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private static long MEDIUM_DELAY_MS = 1000; |
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private static long LONG_DELAY_MS = 10000; |
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|
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public void testIsDone(){ |
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FutureTask task = new FutureTask( new Callable() { |
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public Object call() { return Boolean.TRUE; } }); |
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task.run(); |
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assertTrue(task.isDone()); |
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assertFalse(task.isCancelled()); |
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void checkNotDone(Future<?> f) { |
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assertFalse(f.isDone()); |
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assertFalse(f.isCancelled()); |
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} |
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|
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<T> void checkCompletedNormally(Future<T> f, T expected) { |
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assertTrue(f.isDone()); |
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assertFalse(f.isCancelled()); |
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|
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try { |
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assertSame(expected, f.get()); |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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try { |
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assertSame(expected, f.get(5L, SECONDS)); |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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|
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assertFalse(f.cancel(false)); |
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assertFalse(f.cancel(true)); |
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} |
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|
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void checkCancelled(Future<?> f) { |
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assertTrue(f.isDone()); |
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assertTrue(f.isCancelled()); |
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|
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try { |
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f.get(); |
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shouldThrow(); |
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} catch (CancellationException success) { |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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|
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try { |
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f.get(5L, SECONDS); |
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shouldThrow(); |
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} catch (CancellationException success) { |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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|
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assertFalse(f.cancel(false)); |
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assertFalse(f.cancel(true)); |
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} |
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|
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void checkCompletedAbnormally(Future<?> f, Throwable t) { |
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assertTrue(f.isDone()); |
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assertFalse(f.isCancelled()); |
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|
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try { |
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f.get(); |
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shouldThrow(); |
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} catch (ExecutionException success) { |
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assertSame(t, success.getCause()); |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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|
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try { |
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f.get(5L, SECONDS); |
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shouldThrow(); |
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} catch (ExecutionException success) { |
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assertSame(t, success.getCause()); |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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|
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assertFalse(f.cancel(false)); |
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assertFalse(f.cancel(true)); |
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} |
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|
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/** |
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* Subclass to expose protected methods |
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*/ |
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static class PublicFutureTask extends FutureTask { |
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public PublicFutureTask(Callable r) { super(r); } |
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public boolean runAndReset() { return super.runAndReset(); } |
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public void set(Object x) { super.set(x); } |
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public void setException(Throwable t) { super.setException(t); } |
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} |
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|
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/** |
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* Creating a future with a null callable throws NPE |
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*/ |
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public void testConstructor() { |
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try { |
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FutureTask task = new FutureTask(null); |
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shouldThrow(); |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* creating a future with null runnable fails |
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*/ |
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public void testConstructor2() { |
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try { |
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FutureTask task = new FutureTask(null, Boolean.TRUE); |
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shouldThrow(); |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* isDone is true when a task completes |
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*/ |
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public void testIsDone() { |
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FutureTask task = new FutureTask(new NoOpCallable()); |
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task.run(); |
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assertTrue(task.isDone()); |
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checkCompletedNormally(task, Boolean.TRUE); |
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} |
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|
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/** |
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* runAndReset of a non-cancelled task succeeds |
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*/ |
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public void testRunAndReset() { |
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PublicFutureTask task = new PublicFutureTask(new NoOpCallable()); |
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assertTrue(task.runAndReset()); |
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checkNotDone(task); |
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} |
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|
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/** |
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* runAndReset after cancellation fails |
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*/ |
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public void testResetAfterCancel() { |
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PublicFutureTask task = new PublicFutureTask(new NoOpCallable()); |
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assertTrue(task.cancel(false)); |
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assertFalse(task.runAndReset()); |
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checkCancelled(task); |
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} |
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|
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|
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/** |
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* setting value causes get to return it |
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*/ |
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public void testSet() throws Exception { |
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PublicFutureTask task = new PublicFutureTask(new NoOpCallable()); |
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task.set(one); |
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assertSame(task.get(), one); |
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checkCompletedNormally(task, one); |
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} |
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|
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/** |
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* setException causes get to throw ExecutionException |
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*/ |
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public void testSetException() throws Exception { |
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Exception nse = new NoSuchElementException(); |
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PublicFutureTask task = new PublicFutureTask(new NoOpCallable()); |
162 |
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task.setException(nse); |
163 |
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try { |
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Object x = task.get(); |
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shouldThrow(); |
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} catch (ExecutionException success) { |
167 |
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assertSame(success.getCause(), nse); |
168 |
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checkCompletedAbnormally(task, nse); |
169 |
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} |
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} |
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|
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/** |
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* Cancelling before running succeeds |
174 |
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*/ |
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public void testCancelBeforeRun() { |
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FutureTask task = new FutureTask( new Callable() { |
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public Object call() { return Boolean.TRUE; } }); |
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FutureTask task = new FutureTask(new NoOpCallable()); |
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assertTrue(task.cancel(false)); |
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task.run(); |
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assertTrue(task.isDone()); |
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assertTrue(task.isCancelled()); |
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task.run(); |
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checkCancelled(task); |
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} |
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|
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/** |
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* Cancel(true) before run succeeds |
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*/ |
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public void testCancelBeforeRun2() { |
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FutureTask task = new FutureTask( new Callable() { |
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public Object call() { return Boolean.TRUE; } }); |
186 |
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FutureTask task = new FutureTask(new NoOpCallable()); |
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assertTrue(task.cancel(true)); |
188 |
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task.run(); |
189 |
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assertTrue(task.isDone()); |
47 |
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assertTrue(task.isCancelled()); |
188 |
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task.run(); |
189 |
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checkCancelled(task); |
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} |
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|
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/** |
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* cancel of a completed task fails |
194 |
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*/ |
195 |
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public void testCancelAfterRun() { |
196 |
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FutureTask task = new FutureTask( new Callable() { |
197 |
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public Object call() { return Boolean.TRUE; } }); |
53 |
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task.run(); |
196 |
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FutureTask task = new FutureTask(new NoOpCallable()); |
197 |
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task.run(); |
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|
assertFalse(task.cancel(false)); |
199 |
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assertTrue(task.isDone()); |
56 |
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assertFalse(task.isCancelled()); |
199 |
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checkCompletedNormally(task, Boolean.TRUE); |
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} |
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|
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public void testCancelInterrupt(){ |
203 |
< |
FutureTask task = new FutureTask( new Callable() { |
204 |
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public Object call() { |
205 |
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try { |
206 |
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Thread.sleep(SHORT_DELAY_MS* 2); |
207 |
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fail("should throw"); |
202 |
> |
/** |
203 |
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* cancel(true) interrupts a running task |
204 |
> |
*/ |
205 |
> |
public void testCancelInterrupt() throws InterruptedException { |
206 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
207 |
> |
final FutureTask task = |
208 |
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new FutureTask(new CheckedCallable<Object>() { |
209 |
> |
public Object realCall() { |
210 |
> |
threadStarted.countDown(); |
211 |
> |
long t0 = System.nanoTime(); |
212 |
> |
for (;;) { |
213 |
> |
if (Thread.interrupted()) |
214 |
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return Boolean.TRUE; |
215 |
> |
if (millisElapsedSince(t0) > MEDIUM_DELAY_MS) |
216 |
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fail("interrupt not delivered"); |
217 |
> |
Thread.yield(); |
218 |
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} |
219 |
< |
catch (InterruptedException success) {} |
219 |
> |
}}); |
220 |
> |
|
221 |
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Thread t = newStartedThread(task); |
222 |
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threadStarted.await(); |
223 |
> |
assertTrue(task.cancel(true)); |
224 |
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checkCancelled(task); |
225 |
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awaitTermination(t, MEDIUM_DELAY_MS); |
226 |
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checkCancelled(task); |
227 |
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} |
228 |
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|
229 |
> |
/** |
230 |
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* cancel(false) does not interrupt a running task |
231 |
> |
*/ |
232 |
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public void testCancelNoInterrupt() throws InterruptedException { |
233 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
234 |
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final CountDownLatch cancelled = new CountDownLatch(1); |
235 |
> |
final FutureTask<Boolean> task = |
236 |
> |
new FutureTask<Boolean>(new CheckedCallable<Boolean>() { |
237 |
> |
public Boolean realCall() throws InterruptedException { |
238 |
> |
threadStarted.countDown(); |
239 |
> |
cancelled.await(MEDIUM_DELAY_MS, MILLISECONDS); |
240 |
> |
assertFalse(Thread.interrupted()); |
241 |
|
return Boolean.TRUE; |
242 |
< |
} }); |
243 |
< |
Thread t = new Thread(task); |
244 |
< |
t.start(); |
245 |
< |
|
246 |
< |
try{ |
247 |
< |
Thread.sleep(SHORT_DELAY_MS); |
248 |
< |
assertTrue(task.cancel(true)); |
249 |
< |
t.join(); |
250 |
< |
assertTrue(task.isDone()); |
77 |
< |
assertTrue(task.isCancelled()); |
78 |
< |
} catch(InterruptedException e){ |
79 |
< |
fail("unexpected exception"); |
80 |
< |
} |
242 |
> |
}}); |
243 |
> |
|
244 |
> |
Thread t = newStartedThread(task); |
245 |
> |
threadStarted.await(); |
246 |
> |
assertTrue(task.cancel(false)); |
247 |
> |
checkCancelled(task); |
248 |
> |
cancelled.countDown(); |
249 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
250 |
> |
checkCancelled(task); |
251 |
|
} |
252 |
|
|
253 |
+ |
/** |
254 |
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* run in one thread causes get in another thread to retrieve value |
255 |
+ |
*/ |
256 |
+ |
public void testGetRun() throws InterruptedException { |
257 |
+ |
final CountDownLatch threadStarted = new CountDownLatch(1); |
258 |
+ |
|
259 |
+ |
final FutureTask task = |
260 |
+ |
new FutureTask(new CheckedCallable<Object>() { |
261 |
+ |
public Object realCall() throws InterruptedException { |
262 |
+ |
return Boolean.TRUE; |
263 |
+ |
}}); |
264 |
|
|
265 |
< |
public void testCancelNoInterrupt(){ |
266 |
< |
FutureTask task = new FutureTask( new Callable() { |
267 |
< |
public Object call() { |
268 |
< |
try { |
269 |
< |
Thread.sleep(SHORT_DELAY_MS* 2); |
270 |
< |
} |
271 |
< |
catch (InterruptedException success) { |
272 |
< |
fail("should not interrupt"); |
273 |
< |
} |
265 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
266 |
> |
public void realRun() throws Exception { |
267 |
> |
threadStarted.countDown(); |
268 |
> |
assertSame(Boolean.TRUE, task.get()); |
269 |
> |
}}); |
270 |
> |
|
271 |
> |
threadStarted.await(); |
272 |
> |
checkNotDone(task); |
273 |
> |
assertTrue(t.isAlive()); |
274 |
> |
task.run(); |
275 |
> |
checkCompletedNormally(task, Boolean.TRUE); |
276 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
277 |
> |
} |
278 |
> |
|
279 |
> |
/** |
280 |
> |
* set in one thread causes get in another thread to retrieve value |
281 |
> |
*/ |
282 |
> |
public void testGetSet() throws InterruptedException { |
283 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
284 |
> |
|
285 |
> |
final PublicFutureTask task = |
286 |
> |
new PublicFutureTask(new CheckedCallable<Object>() { |
287 |
> |
public Object realCall() throws InterruptedException { |
288 |
|
return Boolean.TRUE; |
289 |
< |
} }); |
95 |
< |
Thread t = new Thread(task); |
96 |
< |
t.start(); |
97 |
< |
|
98 |
< |
try{ |
99 |
< |
Thread.sleep(SHORT_DELAY_MS); |
100 |
< |
assertTrue(task.cancel(false)); |
101 |
< |
t.join(); |
102 |
< |
assertTrue(task.isDone()); |
103 |
< |
assertTrue(task.isCancelled()); |
104 |
< |
} catch(InterruptedException e){ |
105 |
< |
fail("unexpected exception"); |
106 |
< |
} |
107 |
< |
} |
289 |
> |
}}); |
290 |
|
|
291 |
< |
public void testGet1() { |
292 |
< |
final FutureTask ft = new FutureTask(new Callable(){ |
293 |
< |
public Object call(){ |
294 |
< |
try{ |
295 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
296 |
< |
}catch(InterruptedException e){ |
297 |
< |
fail("unexpected exception"); |
298 |
< |
} |
291 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
292 |
> |
public void realRun() throws Exception { |
293 |
> |
threadStarted.countDown(); |
294 |
> |
assertSame(Boolean.FALSE, task.get()); |
295 |
> |
}}); |
296 |
> |
|
297 |
> |
threadStarted.await(); |
298 |
> |
checkNotDone(task); |
299 |
> |
assertTrue(t.isAlive()); |
300 |
> |
task.set(Boolean.FALSE); |
301 |
> |
checkCompletedNormally(task, Boolean.FALSE); |
302 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
303 |
> |
} |
304 |
> |
|
305 |
> |
/** |
306 |
> |
* run in one thread causes timed get in another thread to retrieve value |
307 |
> |
*/ |
308 |
> |
public void testTimedGetRun() throws InterruptedException { |
309 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
310 |
> |
|
311 |
> |
final FutureTask task = |
312 |
> |
new FutureTask(new CheckedCallable<Object>() { |
313 |
> |
public Object realCall() throws InterruptedException { |
314 |
|
return Boolean.TRUE; |
315 |
< |
} |
316 |
< |
}); |
317 |
< |
Thread t = new Thread(new Runnable(){ |
318 |
< |
public void run(){ |
319 |
< |
try{ |
320 |
< |
ft.get(); |
321 |
< |
}catch(Exception e){ |
322 |
< |
fail("unexpected exception"); |
323 |
< |
} |
324 |
< |
} |
325 |
< |
}); |
326 |
< |
try{ |
327 |
< |
assertFalse(ft.isDone()); |
328 |
< |
assertFalse(ft.isCancelled()); |
329 |
< |
t.start(); |
330 |
< |
Thread.sleep(SHORT_DELAY_MS); |
331 |
< |
ft.run(); |
332 |
< |
t.join(); |
333 |
< |
assertTrue(ft.isDone()); |
334 |
< |
assertFalse(ft.isCancelled()); |
335 |
< |
} catch(InterruptedException e){ |
336 |
< |
fail("unexpected exception"); |
337 |
< |
|
338 |
< |
} |
339 |
< |
} |
340 |
< |
|
144 |
< |
public void testTimedGet1() { |
145 |
< |
final FutureTask ft = new FutureTask(new Callable(){ |
146 |
< |
public Object call(){ |
147 |
< |
try{ |
148 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
149 |
< |
}catch(InterruptedException e){ |
150 |
< |
fail("unexpected exception"); |
151 |
< |
} |
315 |
> |
}}); |
316 |
> |
|
317 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
318 |
> |
public void realRun() throws Exception { |
319 |
> |
threadStarted.countDown(); |
320 |
> |
assertSame(Boolean.TRUE, |
321 |
> |
task.get(MEDIUM_DELAY_MS, MILLISECONDS)); |
322 |
> |
}}); |
323 |
> |
|
324 |
> |
threadStarted.await(); |
325 |
> |
checkNotDone(task); |
326 |
> |
assertTrue(t.isAlive()); |
327 |
> |
task.run(); |
328 |
> |
checkCompletedNormally(task, Boolean.TRUE); |
329 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
330 |
> |
} |
331 |
> |
|
332 |
> |
/** |
333 |
> |
* set in one thread causes timed get in another thread to retrieve value |
334 |
> |
*/ |
335 |
> |
public void testTimedGetSet() throws InterruptedException { |
336 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
337 |
> |
|
338 |
> |
final PublicFutureTask task = |
339 |
> |
new PublicFutureTask(new CheckedCallable<Object>() { |
340 |
> |
public Object realCall() throws InterruptedException { |
341 |
|
return Boolean.TRUE; |
342 |
< |
} |
154 |
< |
}); |
155 |
< |
Thread t = new Thread(new Runnable(){ |
156 |
< |
public void run(){ |
157 |
< |
try{ |
158 |
< |
ft.get(SHORT_DELAY_MS, TimeUnit.MILLISECONDS); |
159 |
< |
} catch(TimeoutException success) { |
160 |
< |
} catch(Exception e){ |
161 |
< |
fail("unexpected exception"); |
162 |
< |
} |
163 |
< |
} |
164 |
< |
}); |
165 |
< |
try{ |
166 |
< |
assertFalse(ft.isDone()); |
167 |
< |
assertFalse(ft.isCancelled()); |
168 |
< |
t.start(); |
169 |
< |
ft.run(); |
170 |
< |
t.join(); |
171 |
< |
assertTrue(ft.isDone()); |
172 |
< |
assertFalse(ft.isCancelled()); |
173 |
< |
} catch(InterruptedException e){ |
174 |
< |
fail("unexpected exception"); |
175 |
< |
|
176 |
< |
} |
177 |
< |
} |
342 |
> |
}}); |
343 |
|
|
344 |
+ |
Thread t = newStartedThread(new CheckedRunnable() { |
345 |
+ |
public void realRun() throws Exception { |
346 |
+ |
threadStarted.countDown(); |
347 |
+ |
assertSame(Boolean.FALSE, |
348 |
+ |
task.get(MEDIUM_DELAY_MS, MILLISECONDS)); |
349 |
+ |
}}); |
350 |
+ |
|
351 |
+ |
threadStarted.await(); |
352 |
+ |
checkNotDone(task); |
353 |
+ |
assertTrue(t.isAlive()); |
354 |
+ |
task.set(Boolean.FALSE); |
355 |
+ |
checkCompletedNormally(task, Boolean.FALSE); |
356 |
+ |
awaitTermination(t, MEDIUM_DELAY_MS); |
357 |
+ |
} |
358 |
+ |
|
359 |
+ |
/** |
360 |
+ |
* Cancelling a task causes timed get in another thread to throw |
361 |
+ |
* CancellationException |
362 |
+ |
*/ |
363 |
+ |
public void testTimedGet_Cancellation() throws InterruptedException { |
364 |
+ |
final CountDownLatch threadStarted = new CountDownLatch(2); |
365 |
+ |
final FutureTask task = |
366 |
+ |
new FutureTask(new CheckedInterruptedCallable<Object>() { |
367 |
+ |
public Object realCall() throws InterruptedException { |
368 |
+ |
threadStarted.countDown(); |
369 |
+ |
delay(LONG_DELAY_MS); |
370 |
+ |
return Boolean.TRUE; |
371 |
+ |
}}); |
372 |
|
|
373 |
< |
public void testGet_Cancellation(){ |
374 |
< |
final FutureTask ft = new FutureTask(new Callable(){ |
375 |
< |
public Object call(){ |
376 |
< |
try{ |
377 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
378 |
< |
}catch(InterruptedException e){ |
379 |
< |
fail("unexpected exception"); |
380 |
< |
} |
373 |
> |
Thread t1 = new ThreadShouldThrow(CancellationException.class) { |
374 |
> |
public void realRun() throws Exception { |
375 |
> |
threadStarted.countDown(); |
376 |
> |
task.get(MEDIUM_DELAY_MS, MILLISECONDS); |
377 |
> |
}}; |
378 |
> |
Thread t2 = new Thread(task); |
379 |
> |
t1.start(); |
380 |
> |
t2.start(); |
381 |
> |
threadStarted.await(); |
382 |
> |
task.cancel(true); |
383 |
> |
awaitTermination(t1, MEDIUM_DELAY_MS); |
384 |
> |
awaitTermination(t2, MEDIUM_DELAY_MS); |
385 |
> |
checkCancelled(task); |
386 |
> |
} |
387 |
> |
|
388 |
> |
/** |
389 |
> |
* Cancelling a task causes get in another thread to throw |
390 |
> |
* CancellationException |
391 |
> |
*/ |
392 |
> |
public void testGet_Cancellation() throws InterruptedException { |
393 |
> |
final CountDownLatch threadStarted = new CountDownLatch(2); |
394 |
> |
final FutureTask task = |
395 |
> |
new FutureTask(new CheckedInterruptedCallable<Object>() { |
396 |
> |
public Object realCall() throws InterruptedException { |
397 |
> |
threadStarted.countDown(); |
398 |
> |
delay(LONG_DELAY_MS); |
399 |
|
return Boolean.TRUE; |
400 |
< |
} |
401 |
< |
}); |
402 |
< |
try { |
403 |
< |
Thread.sleep(SHORT_DELAY_MS); |
404 |
< |
Thread t = new Thread(new Runnable(){ |
405 |
< |
public void run(){ |
406 |
< |
try{ |
407 |
< |
ft.get(); |
408 |
< |
fail("should throw"); |
409 |
< |
}catch(CancellationException success){ |
410 |
< |
} |
411 |
< |
catch(Exception e){ |
412 |
< |
fail("unexpected exception"); |
413 |
< |
} |
414 |
< |
} |
204 |
< |
}); |
205 |
< |
t.start(); |
206 |
< |
ft.cancel(true); |
207 |
< |
t.join(); |
208 |
< |
}catch(InterruptedException sucess){ |
209 |
< |
fail("unexpected exception"); |
210 |
< |
} |
211 |
< |
} |
212 |
< |
|
213 |
< |
public void testGet_Cancellation2(){ |
214 |
< |
final FutureTask ft = new FutureTask(new Callable(){ |
215 |
< |
public Object call(){ |
216 |
< |
try{ |
217 |
< |
Thread.sleep(SHORT_DELAY_MS); |
218 |
< |
} catch(InterruptedException e) { |
219 |
< |
fail("unexpected exception"); |
220 |
< |
} |
221 |
< |
return Boolean.TRUE; |
222 |
< |
} |
223 |
< |
}); |
224 |
< |
try{ |
225 |
< |
Thread.sleep(100); |
226 |
< |
Thread t = new Thread(new Runnable(){ |
227 |
< |
public void run(){ |
228 |
< |
try{ |
229 |
< |
ft.get(3 * SHORT_DELAY_MS, TimeUnit.MILLISECONDS); |
230 |
< |
fail("should throw"); |
231 |
< |
}catch(CancellationException success) {} |
232 |
< |
catch(Exception e){ |
233 |
< |
fail("unexpected exception"); |
234 |
< |
} |
235 |
< |
} |
236 |
< |
}); |
237 |
< |
t.start(); |
238 |
< |
Thread.sleep(SHORT_DELAY_MS); |
239 |
< |
ft.cancel(true); |
240 |
< |
Thread.sleep(SHORT_DELAY_MS); |
241 |
< |
t.join(); |
242 |
< |
}catch(InterruptedException ie){ |
243 |
< |
fail("unexpected exception"); |
244 |
< |
} |
400 |
> |
}}); |
401 |
> |
|
402 |
> |
Thread t1 = new ThreadShouldThrow(CancellationException.class) { |
403 |
> |
public void realRun() throws Exception { |
404 |
> |
threadStarted.countDown(); |
405 |
> |
task.get(); |
406 |
> |
}}; |
407 |
> |
Thread t2 = new Thread(task); |
408 |
> |
t1.start(); |
409 |
> |
t2.start(); |
410 |
> |
threadStarted.await(); |
411 |
> |
task.cancel(true); |
412 |
> |
awaitTermination(t1, MEDIUM_DELAY_MS); |
413 |
> |
awaitTermination(t2, MEDIUM_DELAY_MS); |
414 |
> |
checkCancelled(task); |
415 |
|
} |
416 |
|
|
417 |
< |
public void testGet_ExecutionException(){ |
418 |
< |
final FutureTask ft = new FutureTask(new Callable(){ |
419 |
< |
public Object call(){ |
420 |
< |
int i = 5/0; |
421 |
< |
return Boolean.TRUE; |
422 |
< |
} |
423 |
< |
}); |
424 |
< |
try{ |
425 |
< |
ft.run(); |
426 |
< |
ft.get(); |
427 |
< |
fail("should throw"); |
258 |
< |
}catch(ExecutionException success){ |
259 |
< |
} |
260 |
< |
catch(Exception e){ |
261 |
< |
fail("unexpected exception"); |
262 |
< |
} |
263 |
< |
} |
264 |
< |
|
265 |
< |
public void testTimedGet_ExecutionException2(){ |
266 |
< |
final FutureTask ft = new FutureTask(new Callable(){ |
267 |
< |
public Object call(){ |
268 |
< |
int i = 5/0; |
269 |
< |
return Boolean.TRUE; |
270 |
< |
} |
271 |
< |
}); |
272 |
< |
try{ |
273 |
< |
ft.run(); |
274 |
< |
ft.get(SHORT_DELAY_MS, TimeUnit.MILLISECONDS); |
275 |
< |
fail("should throw"); |
276 |
< |
}catch(ExecutionException success) { |
277 |
< |
}catch(TimeoutException success) { } // unlikely but OK |
278 |
< |
catch(Exception e){ |
279 |
< |
fail("unexpected exception"); |
280 |
< |
} |
281 |
< |
} |
282 |
< |
|
283 |
< |
|
284 |
< |
public void testGet_InterruptedException(){ |
285 |
< |
final FutureTask ft = new FutureTask(new Callable(){ |
286 |
< |
public Object call(){ |
287 |
< |
return new Object(); |
288 |
< |
} |
289 |
< |
}); |
290 |
< |
Thread t = new Thread(new Runnable(){ |
291 |
< |
public void run(){ |
292 |
< |
try{ |
293 |
< |
ft.get(); |
294 |
< |
fail("should throw"); |
295 |
< |
} catch(InterruptedException success){ |
296 |
< |
} catch(Exception e){ |
297 |
< |
fail("unexpected exception"); |
298 |
< |
} |
299 |
< |
} |
300 |
< |
}); |
417 |
> |
|
418 |
> |
/** |
419 |
> |
* A runtime exception in task causes get to throw ExecutionException |
420 |
> |
*/ |
421 |
> |
public void testGet_ExecutionException() throws InterruptedException { |
422 |
> |
final FutureTask task = new FutureTask(new Callable() { |
423 |
> |
public Object call() { |
424 |
> |
return 5/0; |
425 |
> |
}}); |
426 |
> |
|
427 |
> |
task.run(); |
428 |
|
try { |
429 |
< |
t.start(); |
430 |
< |
Thread.sleep(SHORT_DELAY_MS); |
431 |
< |
t.interrupt(); |
432 |
< |
t.join(); |
433 |
< |
} catch(Exception e){ |
307 |
< |
fail("unexpected exception"); |
429 |
> |
task.get(); |
430 |
> |
shouldThrow(); |
431 |
> |
} catch (ExecutionException success) { |
432 |
> |
assertTrue(success.getCause() instanceof ArithmeticException); |
433 |
> |
checkCompletedAbnormally(task, success.getCause()); |
434 |
|
} |
435 |
|
} |
436 |
|
|
437 |
< |
public void testTimedGet_InterruptedException2(){ |
438 |
< |
final FutureTask ft = new FutureTask(new Callable(){ |
439 |
< |
public Object call(){ |
440 |
< |
return new Object(); |
441 |
< |
} |
442 |
< |
}); |
443 |
< |
Thread t = new Thread(new Runnable(){ |
444 |
< |
public void run(){ |
445 |
< |
try{ |
446 |
< |
ft.get(100,TimeUnit.SECONDS); |
447 |
< |
fail("should throw"); |
448 |
< |
}catch(InterruptedException success){} |
449 |
< |
catch(Exception e){ |
450 |
< |
fail("unexpected exception"); |
451 |
< |
} |
452 |
< |
} |
327 |
< |
}); |
328 |
< |
try { |
329 |
< |
t.start(); |
330 |
< |
Thread.sleep(SHORT_DELAY_MS); |
331 |
< |
t.interrupt(); |
332 |
< |
t.join(); |
333 |
< |
} catch(Exception e){ |
334 |
< |
fail("unexpected exception"); |
437 |
> |
/** |
438 |
> |
* A runtime exception in task causes timed get to throw ExecutionException |
439 |
> |
*/ |
440 |
> |
public void testTimedGet_ExecutionException2() throws Exception { |
441 |
> |
final FutureTask task = new FutureTask(new Callable() { |
442 |
> |
public Object call() { |
443 |
> |
return 5/0; |
444 |
> |
}}); |
445 |
> |
|
446 |
> |
task.run(); |
447 |
> |
try { |
448 |
> |
task.get(SHORT_DELAY_MS, MILLISECONDS); |
449 |
> |
shouldThrow(); |
450 |
> |
} catch (ExecutionException success) { |
451 |
> |
assertTrue(success.getCause() instanceof ArithmeticException); |
452 |
> |
checkCompletedAbnormally(task, success.getCause()); |
453 |
|
} |
454 |
|
} |
455 |
< |
|
456 |
< |
public void testGet_TimeoutException(){ |
457 |
< |
FutureTask ft = new FutureTask(new Callable(){ |
458 |
< |
public Object call(){ |
459 |
< |
return new Object(); |
460 |
< |
} |
461 |
< |
}); |
462 |
< |
try{ |
463 |
< |
ft.get(1,TimeUnit.MILLISECONDS); |
464 |
< |
fail("should throw"); |
465 |
< |
}catch(TimeoutException success){} |
466 |
< |
catch(Exception sucess){ |
467 |
< |
fail("unexpected exception"); |
468 |
< |
} |
469 |
< |
|
470 |
< |
|
455 |
> |
|
456 |
> |
|
457 |
> |
/** |
458 |
> |
* Interrupting a waiting get causes it to throw InterruptedException |
459 |
> |
*/ |
460 |
> |
public void testGet_InterruptedException() throws InterruptedException { |
461 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
462 |
> |
final FutureTask task = new FutureTask(new NoOpCallable()); |
463 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
464 |
> |
public void realRun() throws Exception { |
465 |
> |
threadStarted.countDown(); |
466 |
> |
task.get(); |
467 |
> |
}}); |
468 |
> |
|
469 |
> |
threadStarted.await(); |
470 |
> |
t.interrupt(); |
471 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
472 |
> |
checkNotDone(task); |
473 |
> |
} |
474 |
> |
|
475 |
> |
/** |
476 |
> |
* Interrupting a waiting timed get causes it to throw InterruptedException |
477 |
> |
*/ |
478 |
> |
public void testTimedGet_InterruptedException2() throws InterruptedException { |
479 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
480 |
> |
final FutureTask task = new FutureTask(new NoOpCallable()); |
481 |
> |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
482 |
> |
public void realRun() throws Exception { |
483 |
> |
threadStarted.countDown(); |
484 |
> |
task.get(LONG_DELAY_MS, MILLISECONDS); |
485 |
> |
}}); |
486 |
> |
|
487 |
> |
threadStarted.await(); |
488 |
> |
t.interrupt(); |
489 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
490 |
> |
checkNotDone(task); |
491 |
> |
} |
492 |
> |
|
493 |
> |
/** |
494 |
> |
* A timed out timed get throws TimeoutException |
495 |
> |
*/ |
496 |
> |
public void testGet_TimeoutException() throws Exception { |
497 |
> |
try { |
498 |
> |
FutureTask task = new FutureTask(new NoOpCallable()); |
499 |
> |
task.get(1, MILLISECONDS); |
500 |
> |
shouldThrow(); |
501 |
> |
} catch (TimeoutException success) {} |
502 |
|
} |
503 |
< |
|
503 |
> |
|
504 |
|
} |