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* http://creativecommons.org/publicdomain/zero/1.0/ |
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*/ |
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< |
import static java.util.concurrent.TimeUnit.SECONDS; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import java.util.HashSet; |
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import java.util.concurrent.CancellationException; |
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public class RecursiveTaskTest extends JSR166TestCase { |
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public static void main(String[] args) { |
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junit.textui.TestRunner.run(suite()); |
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main(suite(), args); |
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} |
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public static Test suite() { |
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return new TestSuite(RecursiveTaskTest.class); |
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} |
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private <T> T testInvokeOnPool(ForkJoinPool pool, RecursiveTask<T> a) { |
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try { |
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try (PoolCleaner cleaner = cleaner(pool)) { |
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checkNotDone(a); |
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|
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T result = pool.invoke(a); |
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checkCompletedNormally(a, result); |
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return result; |
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} finally { |
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joinPool(pool); |
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} |
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} |
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Thread.currentThread().interrupt(); |
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try { |
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a.get(5L, SECONDS); |
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a.get(randomTimeout(), randomTimeUnit()); |
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shouldThrow(); |
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} catch (InterruptedException success) { |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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} |
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try { |
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a.get(0L, SECONDS); |
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a.get(randomExpiredTimeout(), randomTimeUnit()); |
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shouldThrow(); |
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} catch (TimeoutException success) { |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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assertFalse(a.cancel(true)); |
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try { |
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assertSame(expected, a.get()); |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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try { |
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assertSame(expected, a.get(5L, SECONDS)); |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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assertSame(expected, a.get(randomTimeout(), randomTimeUnit())); |
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} catch (Exception fail) { threadUnexpectedException(fail); } |
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} |
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/** |
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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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|
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try { |
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a.get(5L, SECONDS); |
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> |
a.get(randomTimeout(), randomTimeUnit()); |
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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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} catch (Throwable fail) { threadUnexpectedException(fail); } |
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try { |
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a.get(5L, SECONDS); |
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a.get(randomTimeout(), randomTimeUnit()); |
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shouldThrow(); |
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} catch (ExecutionException success) { |
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assertSame(t.getClass(), success.getCause().getClass()); |
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public FJException() { super(); } |
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} |
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// An invalid return value for Fib |
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/** An invalid return value for Fib. */ |
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static final Integer NoResult = Integer.valueOf(-17); |
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|
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// A simple recursive task for testing |
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> |
/** A simple recursive task for testing. */ |
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final class FibTask extends CheckedRecursiveTask<Integer> { |
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final int number; |
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FibTask(int n) { number = n; } |
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} |
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} |
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// A recursive action failing in base case |
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> |
/** A recursive action failing in base case. */ |
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final class FailingFibTask extends RecursiveTask<Integer> { |
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final int number; |
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int result; |
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public Integer realCompute() throws Exception { |
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FibTask f = new FibTask(8); |
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assertSame(f, f.fork()); |
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Integer r = f.get(5L, SECONDS); |
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> |
Integer r = f.get(LONG_DELAY_MS, MILLISECONDS); |
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assertEquals(21, (int) r); |
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checkCompletedNormally(f, r); |
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return r; |
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FibTask f = new FibTask(8); |
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assertSame(f, f.fork()); |
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helpQuiesce(); |
329 |
+ |
while (!f.isDone()) // wait out race |
330 |
+ |
; |
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assertEquals(0, getQueuedTaskCount()); |
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checkCompletedNormally(f, 21); |
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return NoResult; |
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FailingFibTask f = new FailingFibTask(8); |
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assertSame(f, f.fork()); |
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try { |
420 |
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Integer r = f.get(5L, SECONDS); |
420 |
> |
Integer r = f.get(LONG_DELAY_MS, MILLISECONDS); |
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shouldThrow(); |
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} catch (ExecutionException success) { |
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Throwable cause = success.getCause(); |
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assertTrue(f.cancel(true)); |
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assertSame(f, f.fork()); |
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try { |
517 |
< |
Integer r = f.get(5L, SECONDS); |
517 |
> |
Integer r = f.get(LONG_DELAY_MS, MILLISECONDS); |
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shouldThrow(); |
519 |
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} catch (CancellationException success) { |
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checkCancelled(f); |