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/* |
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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/licenses/publicdomain |
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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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|
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import junit.framework.*; |
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import java.util.*; |
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import java.util.concurrent.*; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import java.util.concurrent.atomic.*; |
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|
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public class ScheduledExecutorTest 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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} |
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public static Test suite() { |
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return new TestSuite(ScheduledExecutorTest.class); |
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} |
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|
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|
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/** |
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* execute successfully executes a runnable |
26 |
*/ |
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public void testExecute() throws InterruptedException { |
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ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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final CountDownLatch done = new CountDownLatch(1); |
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final Runnable task = new CheckedRunnable() { |
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public void realRun() { |
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done.countDown(); |
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}}; |
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try { |
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p.execute(task); |
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assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS)); |
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} finally { |
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joinPool(p); |
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} |
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} |
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|
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|
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/** |
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* delayed schedule of callable successfully executes after delay |
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*/ |
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public void testSchedule1() throws Exception { |
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ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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final long t0 = System.nanoTime(); |
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final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L; |
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final CountDownLatch done = new CountDownLatch(1); |
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try { |
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Callable task = new CheckedCallable<Boolean>() { |
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public Boolean realCall() { |
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done.countDown(); |
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assertTrue(System.nanoTime() - t0 >= timeoutNanos); |
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return Boolean.TRUE; |
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}}; |
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Future f = p.schedule(task, SHORT_DELAY_MS, MILLISECONDS); |
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assertEquals(Boolean.TRUE, f.get()); |
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assertTrue(System.nanoTime() - t0 >= timeoutNanos); |
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assertTrue(done.await(0L, MILLISECONDS)); |
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} finally { |
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joinPool(p); |
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} |
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} |
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|
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/** |
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* delayed schedule of runnable successfully executes after delay |
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*/ |
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public void testSchedule3() throws Exception { |
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ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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final long t0 = System.nanoTime(); |
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final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L; |
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final CountDownLatch done = new CountDownLatch(1); |
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try { |
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Runnable task = new CheckedRunnable() { |
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public void realRun() { |
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done.countDown(); |
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assertTrue(System.nanoTime() - t0 >= timeoutNanos); |
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}}; |
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Future f = p.schedule(task, SHORT_DELAY_MS, MILLISECONDS); |
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assertNull(f.get()); |
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assertTrue(System.nanoTime() - t0 >= timeoutNanos); |
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assertTrue(done.await(0L, MILLISECONDS)); |
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} finally { |
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joinPool(p); |
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} |
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} |
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|
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/** |
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* scheduleAtFixedRate executes runnable after given initial delay |
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*/ |
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public void testSchedule4() throws Exception { |
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ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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final long t0 = System.nanoTime(); |
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final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L; |
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final CountDownLatch done = new CountDownLatch(1); |
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try { |
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Runnable task = new CheckedRunnable() { |
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public void realRun() { |
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done.countDown(); |
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assertTrue(System.nanoTime() - t0 >= timeoutNanos); |
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}}; |
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ScheduledFuture f = |
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p.scheduleAtFixedRate(task, SHORT_DELAY_MS, |
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SHORT_DELAY_MS, MILLISECONDS); |
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assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS)); |
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assertTrue(System.nanoTime() - t0 >= timeoutNanos); |
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f.cancel(true); |
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} finally { |
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joinPool(p); |
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} |
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} |
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|
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/** |
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* scheduleWithFixedDelay executes runnable after given initial delay |
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*/ |
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public void testSchedule5() throws InterruptedException { |
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ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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final long t0 = System.nanoTime(); |
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final long timeoutNanos = SHORT_DELAY_MS * 1000L * 1000L; |
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final CountDownLatch done = new CountDownLatch(1); |
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try { |
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Runnable task = new CheckedRunnable() { |
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public void realRun() { |
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done.countDown(); |
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assertTrue(System.nanoTime() - t0 >= timeoutNanos); |
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}}; |
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ScheduledFuture f = |
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p.scheduleWithFixedDelay(task, SHORT_DELAY_MS, |
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SHORT_DELAY_MS, MILLISECONDS); |
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assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS)); |
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assertTrue(System.nanoTime() - t0 >= timeoutNanos); |
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f.cancel(true); |
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} finally { |
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joinPool(p); |
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} |
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} |
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|
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static class RunnableCounter implements Runnable { |
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AtomicInteger count = new AtomicInteger(0); |
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public void run() { count.getAndIncrement(); } |
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} |
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|
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/** |
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* scheduleAtFixedRate executes series of tasks at given rate |
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*/ |
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public void testFixedRateSequence() throws InterruptedException { |
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ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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RunnableCounter counter = new RunnableCounter(); |
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ScheduledFuture h = |
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p.scheduleAtFixedRate(counter, 0, 1, MILLISECONDS); |
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Thread.sleep(SMALL_DELAY_MS); |
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h.cancel(true); |
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int c = counter.count.get(); |
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// By time scaling conventions, we must have at least |
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// an execution per SHORT delay, but no more than one SHORT more |
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assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS); |
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assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS); |
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joinPool(p); |
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} |
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|
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/** |
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* scheduleWithFixedDelay executes series of tasks with given period |
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*/ |
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public void testFixedDelaySequence() throws InterruptedException { |
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ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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RunnableCounter counter = new RunnableCounter(); |
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ScheduledFuture h = |
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p.scheduleWithFixedDelay(counter, 0, 1, MILLISECONDS); |
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Thread.sleep(SMALL_DELAY_MS); |
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h.cancel(true); |
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int c = counter.count.get(); |
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assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS); |
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assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS); |
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joinPool(p); |
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} |
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|
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|
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/** |
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* execute(null) throws NPE |
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*/ |
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public void testExecuteNull() throws InterruptedException { |
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ScheduledThreadPoolExecutor se = null; |
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try { |
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se = new ScheduledThreadPoolExecutor(1); |
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se.execute(null); |
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shouldThrow(); |
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} catch (NullPointerException success) {} |
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|
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joinPool(se); |
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} |
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|
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/** |
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* schedule(null) throws NPE |
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*/ |
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public void testScheduleNull() throws InterruptedException { |
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ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1); |
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try { |
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TrackedCallable callable = null; |
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Future f = se.schedule(callable, SHORT_DELAY_MS, MILLISECONDS); |
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shouldThrow(); |
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} catch (NullPointerException success) {} |
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joinPool(se); |
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} |
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|
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/** |
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* execute throws RejectedExecutionException if shutdown |
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*/ |
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public void testSchedule1_RejectedExecutionException() throws InterruptedException { |
211 |
ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1); |
212 |
try { |
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se.shutdown(); |
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se.schedule(new NoOpRunnable(), |
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MEDIUM_DELAY_MS, MILLISECONDS); |
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shouldThrow(); |
217 |
} catch (RejectedExecutionException success) { |
218 |
} catch (SecurityException ok) { |
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} |
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|
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joinPool(se); |
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} |
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|
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/** |
225 |
* schedule throws RejectedExecutionException if shutdown |
226 |
*/ |
227 |
public void testSchedule2_RejectedExecutionException() throws InterruptedException { |
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ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1); |
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try { |
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se.shutdown(); |
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se.schedule(new NoOpCallable(), |
232 |
MEDIUM_DELAY_MS, MILLISECONDS); |
233 |
shouldThrow(); |
234 |
} catch (RejectedExecutionException success) { |
235 |
} catch (SecurityException ok) { |
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} |
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joinPool(se); |
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} |
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|
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/** |
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* schedule callable throws RejectedExecutionException if shutdown |
242 |
*/ |
243 |
public void testSchedule3_RejectedExecutionException() throws InterruptedException { |
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ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1); |
245 |
try { |
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se.shutdown(); |
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se.schedule(new NoOpCallable(), |
248 |
MEDIUM_DELAY_MS, MILLISECONDS); |
249 |
shouldThrow(); |
250 |
} catch (RejectedExecutionException success) { |
251 |
} catch (SecurityException ok) { |
252 |
} |
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joinPool(se); |
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} |
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|
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/** |
257 |
* scheduleAtFixedRate throws RejectedExecutionException if shutdown |
258 |
*/ |
259 |
public void testScheduleAtFixedRate1_RejectedExecutionException() throws InterruptedException { |
260 |
ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1); |
261 |
try { |
262 |
se.shutdown(); |
263 |
se.scheduleAtFixedRate(new NoOpRunnable(), |
264 |
MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS); |
265 |
shouldThrow(); |
266 |
} catch (RejectedExecutionException success) { |
267 |
} catch (SecurityException ok) { |
268 |
} |
269 |
joinPool(se); |
270 |
} |
271 |
|
272 |
/** |
273 |
* scheduleWithFixedDelay throws RejectedExecutionException if shutdown |
274 |
*/ |
275 |
public void testScheduleWithFixedDelay1_RejectedExecutionException() throws InterruptedException { |
276 |
ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1); |
277 |
try { |
278 |
se.shutdown(); |
279 |
se.scheduleWithFixedDelay(new NoOpRunnable(), |
280 |
MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS); |
281 |
shouldThrow(); |
282 |
} catch (RejectedExecutionException success) { |
283 |
} catch (SecurityException ok) { |
284 |
} |
285 |
joinPool(se); |
286 |
} |
287 |
|
288 |
/** |
289 |
* getActiveCount increases but doesn't overestimate, when a |
290 |
* thread becomes active |
291 |
*/ |
292 |
public void testGetActiveCount() throws InterruptedException { |
293 |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2); |
294 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
295 |
final CountDownLatch done = new CountDownLatch(1); |
296 |
try { |
297 |
assertEquals(0, p.getActiveCount()); |
298 |
p.execute(new CheckedRunnable() { |
299 |
public void realRun() throws InterruptedException { |
300 |
threadStarted.countDown(); |
301 |
assertEquals(1, p.getActiveCount()); |
302 |
done.await(); |
303 |
}}); |
304 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
305 |
assertEquals(1, p.getActiveCount()); |
306 |
} finally { |
307 |
done.countDown(); |
308 |
joinPool(p); |
309 |
} |
310 |
} |
311 |
|
312 |
/** |
313 |
* getCompletedTaskCount increases, but doesn't overestimate, |
314 |
* when tasks complete |
315 |
*/ |
316 |
public void testGetCompletedTaskCount() throws InterruptedException { |
317 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2); |
318 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
319 |
final CountDownLatch threadProceed = new CountDownLatch(1); |
320 |
final CountDownLatch threadDone = new CountDownLatch(1); |
321 |
try { |
322 |
assertEquals(0, p.getCompletedTaskCount()); |
323 |
p.execute(new CheckedRunnable() { |
324 |
public void realRun() throws InterruptedException { |
325 |
threadStarted.countDown(); |
326 |
assertEquals(0, p.getCompletedTaskCount()); |
327 |
threadProceed.await(); |
328 |
threadDone.countDown(); |
329 |
}}); |
330 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
331 |
assertEquals(0, p.getCompletedTaskCount()); |
332 |
threadProceed.countDown(); |
333 |
threadDone.await(); |
334 |
Thread.sleep(SHORT_DELAY_MS); |
335 |
assertEquals(1, p.getCompletedTaskCount()); |
336 |
} finally { |
337 |
joinPool(p); |
338 |
} |
339 |
} |
340 |
|
341 |
/** |
342 |
* getCorePoolSize returns size given in constructor if not otherwise set |
343 |
*/ |
344 |
public void testGetCorePoolSize() throws InterruptedException { |
345 |
ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
346 |
assertEquals(1, p.getCorePoolSize()); |
347 |
joinPool(p); |
348 |
} |
349 |
|
350 |
/** |
351 |
* getLargestPoolSize increases, but doesn't overestimate, when |
352 |
* multiple threads active |
353 |
*/ |
354 |
public void testGetLargestPoolSize() throws InterruptedException { |
355 |
final int THREADS = 3; |
356 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS); |
357 |
final CountDownLatch threadsStarted = new CountDownLatch(THREADS); |
358 |
final CountDownLatch done = new CountDownLatch(1); |
359 |
try { |
360 |
assertEquals(0, p.getLargestPoolSize()); |
361 |
for (int i = 0; i < THREADS; i++) |
362 |
p.execute(new CheckedRunnable() { |
363 |
public void realRun() throws InterruptedException { |
364 |
threadsStarted.countDown(); |
365 |
done.await(); |
366 |
assertEquals(THREADS, p.getLargestPoolSize()); |
367 |
}}); |
368 |
assertTrue(threadsStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
369 |
assertEquals(THREADS, p.getLargestPoolSize()); |
370 |
} finally { |
371 |
done.countDown(); |
372 |
joinPool(p); |
373 |
assertEquals(THREADS, p.getLargestPoolSize()); |
374 |
} |
375 |
} |
376 |
|
377 |
/** |
378 |
* getPoolSize increases, but doesn't overestimate, when threads |
379 |
* become active |
380 |
*/ |
381 |
public void testGetPoolSize() throws InterruptedException { |
382 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
383 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
384 |
final CountDownLatch done = new CountDownLatch(1); |
385 |
try { |
386 |
assertEquals(0, p.getPoolSize()); |
387 |
p.execute(new CheckedRunnable() { |
388 |
public void realRun() throws InterruptedException { |
389 |
threadStarted.countDown(); |
390 |
assertEquals(1, p.getPoolSize()); |
391 |
done.await(); |
392 |
}}); |
393 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
394 |
assertEquals(1, p.getPoolSize()); |
395 |
} finally { |
396 |
done.countDown(); |
397 |
joinPool(p); |
398 |
} |
399 |
} |
400 |
|
401 |
/** |
402 |
* getTaskCount increases, but doesn't overestimate, when tasks |
403 |
* submitted |
404 |
*/ |
405 |
public void testGetTaskCount() throws InterruptedException { |
406 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
407 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
408 |
final CountDownLatch done = new CountDownLatch(1); |
409 |
final int TASKS = 5; |
410 |
try { |
411 |
assertEquals(0, p.getTaskCount()); |
412 |
for (int i = 0; i < TASKS; i++) |
413 |
p.execute(new CheckedRunnable() { |
414 |
public void realRun() throws InterruptedException { |
415 |
threadStarted.countDown(); |
416 |
done.await(); |
417 |
}}); |
418 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
419 |
assertEquals(TASKS, p.getTaskCount()); |
420 |
} finally { |
421 |
done.countDown(); |
422 |
joinPool(p); |
423 |
} |
424 |
} |
425 |
|
426 |
/** |
427 |
* getThreadFactory returns factory in constructor if not set |
428 |
*/ |
429 |
public void testGetThreadFactory() throws InterruptedException { |
430 |
ThreadFactory tf = new SimpleThreadFactory(); |
431 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, tf); |
432 |
assertSame(tf, p.getThreadFactory()); |
433 |
joinPool(p); |
434 |
} |
435 |
|
436 |
/** |
437 |
* setThreadFactory sets the thread factory returned by getThreadFactory |
438 |
*/ |
439 |
public void testSetThreadFactory() throws InterruptedException { |
440 |
ThreadFactory tf = new SimpleThreadFactory(); |
441 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
442 |
p.setThreadFactory(tf); |
443 |
assertSame(tf, p.getThreadFactory()); |
444 |
joinPool(p); |
445 |
} |
446 |
|
447 |
/** |
448 |
* setThreadFactory(null) throws NPE |
449 |
*/ |
450 |
public void testSetThreadFactoryNull() throws InterruptedException { |
451 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
452 |
try { |
453 |
p.setThreadFactory(null); |
454 |
shouldThrow(); |
455 |
} catch (NullPointerException success) { |
456 |
} finally { |
457 |
joinPool(p); |
458 |
} |
459 |
} |
460 |
|
461 |
/** |
462 |
* isShutDown is false before shutdown, true after |
463 |
*/ |
464 |
public void testIsShutdown() { |
465 |
|
466 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
467 |
try { |
468 |
assertFalse(p.isShutdown()); |
469 |
} |
470 |
finally { |
471 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
472 |
} |
473 |
assertTrue(p.isShutdown()); |
474 |
} |
475 |
|
476 |
|
477 |
/** |
478 |
* isTerminated is false before termination, true after |
479 |
*/ |
480 |
public void testIsTerminated() throws InterruptedException { |
481 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
482 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
483 |
final CountDownLatch done = new CountDownLatch(1); |
484 |
assertFalse(p.isTerminated()); |
485 |
try { |
486 |
p.execute(new CheckedRunnable() { |
487 |
public void realRun() throws InterruptedException { |
488 |
threadStarted.countDown(); |
489 |
assertFalse(p.isTerminated()); |
490 |
done.await(); |
491 |
}}); |
492 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
493 |
done.countDown(); |
494 |
} finally { |
495 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
496 |
} |
497 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
498 |
assertTrue(p.isTerminated()); |
499 |
} |
500 |
|
501 |
/** |
502 |
* isTerminating is not true when running or when terminated |
503 |
*/ |
504 |
public void testIsTerminating() throws InterruptedException { |
505 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
506 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
507 |
final CountDownLatch done = new CountDownLatch(1); |
508 |
try { |
509 |
assertFalse(p.isTerminating()); |
510 |
p.execute(new CheckedRunnable() { |
511 |
public void realRun() throws InterruptedException { |
512 |
threadStarted.countDown(); |
513 |
assertFalse(p.isTerminating()); |
514 |
done.await(); |
515 |
}}); |
516 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
517 |
assertFalse(p.isTerminating()); |
518 |
done.countDown(); |
519 |
} finally { |
520 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
521 |
} |
522 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
523 |
assertTrue(p.isTerminated()); |
524 |
assertFalse(p.isTerminating()); |
525 |
} |
526 |
|
527 |
/** |
528 |
* getQueue returns the work queue, which contains queued tasks |
529 |
*/ |
530 |
public void testGetQueue() throws InterruptedException { |
531 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
532 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
533 |
final CountDownLatch done = new CountDownLatch(1); |
534 |
try { |
535 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
536 |
for (int i = 0; i < tasks.length; i++) { |
537 |
Runnable r = new CheckedRunnable() { |
538 |
public void realRun() throws InterruptedException { |
539 |
threadStarted.countDown(); |
540 |
done.await(); |
541 |
}}; |
542 |
tasks[i] = p.schedule(r, 1, MILLISECONDS); |
543 |
} |
544 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
545 |
BlockingQueue<Runnable> q = p.getQueue(); |
546 |
assertTrue(q.contains(tasks[tasks.length - 1])); |
547 |
assertFalse(q.contains(tasks[0])); |
548 |
} finally { |
549 |
done.countDown(); |
550 |
joinPool(p); |
551 |
} |
552 |
} |
553 |
|
554 |
/** |
555 |
* remove(task) removes queued task, and fails to remove active task |
556 |
*/ |
557 |
public void testRemove() throws InterruptedException { |
558 |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
559 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
560 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
561 |
final CountDownLatch done = new CountDownLatch(1); |
562 |
try { |
563 |
for (int i = 0; i < tasks.length; i++) { |
564 |
Runnable r = new CheckedRunnable() { |
565 |
public void realRun() throws InterruptedException { |
566 |
threadStarted.countDown(); |
567 |
done.await(); |
568 |
}}; |
569 |
tasks[i] = p.schedule(r, 1, MILLISECONDS); |
570 |
} |
571 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
572 |
BlockingQueue<Runnable> q = p.getQueue(); |
573 |
assertFalse(p.remove((Runnable)tasks[0])); |
574 |
assertTrue(q.contains((Runnable)tasks[4])); |
575 |
assertTrue(q.contains((Runnable)tasks[3])); |
576 |
assertTrue(p.remove((Runnable)tasks[4])); |
577 |
assertFalse(p.remove((Runnable)tasks[4])); |
578 |
assertFalse(q.contains((Runnable)tasks[4])); |
579 |
assertTrue(q.contains((Runnable)tasks[3])); |
580 |
assertTrue(p.remove((Runnable)tasks[3])); |
581 |
assertFalse(q.contains((Runnable)tasks[3])); |
582 |
} finally { |
583 |
done.countDown(); |
584 |
joinPool(p); |
585 |
} |
586 |
} |
587 |
|
588 |
/** |
589 |
* purge removes cancelled tasks from the queue |
590 |
*/ |
591 |
public void testPurge() throws InterruptedException { |
592 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
593 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
594 |
for (int i = 0; i < tasks.length; i++) { |
595 |
tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, MILLISECONDS); |
596 |
} |
597 |
try { |
598 |
int max = tasks.length; |
599 |
if (tasks[4].cancel(true)) --max; |
600 |
if (tasks[3].cancel(true)) --max; |
601 |
// There must eventually be an interference-free point at |
602 |
// which purge will not fail. (At worst, when queue is empty.) |
603 |
int k; |
604 |
for (k = 0; k < SMALL_DELAY_MS; ++k) { |
605 |
p.purge(); |
606 |
long count = p.getTaskCount(); |
607 |
if (count >= 0 && count <= max) |
608 |
break; |
609 |
Thread.sleep(1); |
610 |
} |
611 |
assertTrue(k < SMALL_DELAY_MS); |
612 |
} finally { |
613 |
for (ScheduledFuture task : tasks) |
614 |
task.cancel(true); |
615 |
joinPool(p); |
616 |
} |
617 |
} |
618 |
|
619 |
/** |
620 |
* shutDownNow returns a list containing tasks that were not run |
621 |
*/ |
622 |
public void testShutDownNow() throws InterruptedException { |
623 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
624 |
for (int i = 0; i < 5; i++) |
625 |
p.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, MILLISECONDS); |
626 |
List l; |
627 |
try { |
628 |
l = p.shutdownNow(); |
629 |
} catch (SecurityException ok) { |
630 |
return; |
631 |
} |
632 |
assertTrue(p.isShutdown()); |
633 |
assertTrue(l.size() > 0 && l.size() <= 5); |
634 |
joinPool(p); |
635 |
} |
636 |
|
637 |
/** |
638 |
* In default setting, shutdown cancels periodic but not delayed |
639 |
* tasks at shutdown |
640 |
*/ |
641 |
public void testShutDown1() throws InterruptedException { |
642 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
643 |
assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
644 |
assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
645 |
|
646 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
647 |
for (int i = 0; i < tasks.length; i++) |
648 |
tasks[i] = p.schedule(new NoOpRunnable(), |
649 |
SHORT_DELAY_MS, MILLISECONDS); |
650 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
651 |
BlockingQueue<Runnable> q = p.getQueue(); |
652 |
for (ScheduledFuture task : tasks) { |
653 |
assertFalse(task.isDone()); |
654 |
assertFalse(task.isCancelled()); |
655 |
assertTrue(q.contains(task)); |
656 |
} |
657 |
assertTrue(p.isShutdown()); |
658 |
assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS)); |
659 |
assertTrue(p.isTerminated()); |
660 |
for (ScheduledFuture task : tasks) { |
661 |
assertTrue(task.isDone()); |
662 |
assertFalse(task.isCancelled()); |
663 |
} |
664 |
} |
665 |
|
666 |
|
667 |
/** |
668 |
* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false, |
669 |
* delayed tasks are cancelled at shutdown |
670 |
*/ |
671 |
public void testShutDown2() throws InterruptedException { |
672 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
673 |
p.setExecuteExistingDelayedTasksAfterShutdownPolicy(false); |
674 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
675 |
for (int i = 0; i < tasks.length; i++) |
676 |
tasks[i] = p.schedule(new NoOpRunnable(), |
677 |
SHORT_DELAY_MS, MILLISECONDS); |
678 |
BlockingQueue q = p.getQueue(); |
679 |
assertEquals(tasks.length, q.size()); |
680 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
681 |
assertTrue(p.isShutdown()); |
682 |
assertTrue(q.isEmpty()); |
683 |
assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS)); |
684 |
assertTrue(p.isTerminated()); |
685 |
for (ScheduledFuture task : tasks) { |
686 |
assertTrue(task.isDone()); |
687 |
assertTrue(task.isCancelled()); |
688 |
} |
689 |
} |
690 |
|
691 |
/** |
692 |
* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false, |
693 |
* periodic tasks are cancelled at shutdown |
694 |
*/ |
695 |
public void testShutDown3() throws InterruptedException { |
696 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
697 |
p.setContinueExistingPeriodicTasksAfterShutdownPolicy(false); |
698 |
ScheduledFuture task = |
699 |
p.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, MILLISECONDS); |
700 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
701 |
assertTrue(p.isShutdown()); |
702 |
BlockingQueue q = p.getQueue(); |
703 |
assertTrue(p.getQueue().isEmpty()); |
704 |
assertTrue(task.isDone()); |
705 |
assertTrue(task.isCancelled()); |
706 |
assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS)); |
707 |
assertTrue(p.isTerminated()); |
708 |
} |
709 |
|
710 |
/** |
711 |
* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true, |
712 |
* periodic tasks are not cancelled at shutdown |
713 |
*/ |
714 |
public void testShutDown4() throws InterruptedException { |
715 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
716 |
p.setContinueExistingPeriodicTasksAfterShutdownPolicy(true); |
717 |
final CountDownLatch counter = new CountDownLatch(2); |
718 |
try { |
719 |
final Runnable r = new CheckedRunnable() { |
720 |
public void realRun() { |
721 |
counter.countDown(); |
722 |
}}; |
723 |
ScheduledFuture task = |
724 |
p.scheduleAtFixedRate(r, 1, 1, MILLISECONDS); |
725 |
assertFalse(task.isDone()); |
726 |
assertFalse(task.isCancelled()); |
727 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
728 |
assertFalse(task.isCancelled()); |
729 |
assertFalse(p.isTerminated()); |
730 |
assertTrue(p.isShutdown()); |
731 |
assertTrue(counter.await(SMALL_DELAY_MS, MILLISECONDS)); |
732 |
assertFalse(task.isCancelled()); |
733 |
assertTrue(task.cancel(false)); |
734 |
assertTrue(task.isDone()); |
735 |
assertTrue(task.isCancelled()); |
736 |
assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS)); |
737 |
assertTrue(p.isTerminated()); |
738 |
} |
739 |
finally { |
740 |
joinPool(p); |
741 |
} |
742 |
} |
743 |
|
744 |
/** |
745 |
* completed submit of callable returns result |
746 |
*/ |
747 |
public void testSubmitCallable() throws Exception { |
748 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
749 |
try { |
750 |
Future<String> future = e.submit(new StringTask()); |
751 |
String result = future.get(); |
752 |
assertSame(TEST_STRING, result); |
753 |
} finally { |
754 |
joinPool(e); |
755 |
} |
756 |
} |
757 |
|
758 |
/** |
759 |
* completed submit of runnable returns successfully |
760 |
*/ |
761 |
public void testSubmitRunnable() throws Exception { |
762 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
763 |
try { |
764 |
Future<?> future = e.submit(new NoOpRunnable()); |
765 |
future.get(); |
766 |
assertTrue(future.isDone()); |
767 |
} finally { |
768 |
joinPool(e); |
769 |
} |
770 |
} |
771 |
|
772 |
/** |
773 |
* completed submit of (runnable, result) returns result |
774 |
*/ |
775 |
public void testSubmitRunnable2() throws Exception { |
776 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
777 |
try { |
778 |
Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING); |
779 |
String result = future.get(); |
780 |
assertSame(TEST_STRING, result); |
781 |
} finally { |
782 |
joinPool(e); |
783 |
} |
784 |
} |
785 |
|
786 |
/** |
787 |
* invokeAny(null) throws NPE |
788 |
*/ |
789 |
public void testInvokeAny1() throws Exception { |
790 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
791 |
try { |
792 |
e.invokeAny(null); |
793 |
shouldThrow(); |
794 |
} catch (NullPointerException success) { |
795 |
} finally { |
796 |
joinPool(e); |
797 |
} |
798 |
} |
799 |
|
800 |
/** |
801 |
* invokeAny(empty collection) throws IAE |
802 |
*/ |
803 |
public void testInvokeAny2() throws Exception { |
804 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
805 |
try { |
806 |
e.invokeAny(new ArrayList<Callable<String>>()); |
807 |
shouldThrow(); |
808 |
} catch (IllegalArgumentException success) { |
809 |
} finally { |
810 |
joinPool(e); |
811 |
} |
812 |
} |
813 |
|
814 |
/** |
815 |
* invokeAny(c) throws NPE if c has null elements |
816 |
*/ |
817 |
public void testInvokeAny3() throws Exception { |
818 |
CountDownLatch latch = new CountDownLatch(1); |
819 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
820 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
821 |
l.add(latchAwaitingStringTask(latch)); |
822 |
l.add(null); |
823 |
try { |
824 |
e.invokeAny(l); |
825 |
shouldThrow(); |
826 |
} catch (NullPointerException success) { |
827 |
} finally { |
828 |
latch.countDown(); |
829 |
joinPool(e); |
830 |
} |
831 |
} |
832 |
|
833 |
/** |
834 |
* invokeAny(c) throws ExecutionException if no task completes |
835 |
*/ |
836 |
public void testInvokeAny4() throws Exception { |
837 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
838 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
839 |
l.add(new NPETask()); |
840 |
try { |
841 |
e.invokeAny(l); |
842 |
shouldThrow(); |
843 |
} catch (ExecutionException success) { |
844 |
assertTrue(success.getCause() instanceof NullPointerException); |
845 |
} finally { |
846 |
joinPool(e); |
847 |
} |
848 |
} |
849 |
|
850 |
/** |
851 |
* invokeAny(c) returns result of some task |
852 |
*/ |
853 |
public void testInvokeAny5() throws Exception { |
854 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
855 |
try { |
856 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
857 |
l.add(new StringTask()); |
858 |
l.add(new StringTask()); |
859 |
String result = e.invokeAny(l); |
860 |
assertSame(TEST_STRING, result); |
861 |
} finally { |
862 |
joinPool(e); |
863 |
} |
864 |
} |
865 |
|
866 |
/** |
867 |
* invokeAll(null) throws NPE |
868 |
*/ |
869 |
public void testInvokeAll1() throws Exception { |
870 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
871 |
try { |
872 |
e.invokeAll(null); |
873 |
shouldThrow(); |
874 |
} catch (NullPointerException success) { |
875 |
} finally { |
876 |
joinPool(e); |
877 |
} |
878 |
} |
879 |
|
880 |
/** |
881 |
* invokeAll(empty collection) returns empty collection |
882 |
*/ |
883 |
public void testInvokeAll2() throws Exception { |
884 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
885 |
try { |
886 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>()); |
887 |
assertTrue(r.isEmpty()); |
888 |
} finally { |
889 |
joinPool(e); |
890 |
} |
891 |
} |
892 |
|
893 |
/** |
894 |
* invokeAll(c) throws NPE if c has null elements |
895 |
*/ |
896 |
public void testInvokeAll3() throws Exception { |
897 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
898 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
899 |
l.add(new StringTask()); |
900 |
l.add(null); |
901 |
try { |
902 |
e.invokeAll(l); |
903 |
shouldThrow(); |
904 |
} catch (NullPointerException success) { |
905 |
} finally { |
906 |
joinPool(e); |
907 |
} |
908 |
} |
909 |
|
910 |
/** |
911 |
* get of invokeAll(c) throws exception on failed task |
912 |
*/ |
913 |
public void testInvokeAll4() throws Exception { |
914 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
915 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
916 |
l.add(new NPETask()); |
917 |
List<Future<String>> futures = e.invokeAll(l); |
918 |
assertEquals(1, futures.size()); |
919 |
try { |
920 |
futures.get(0).get(); |
921 |
shouldThrow(); |
922 |
} catch (ExecutionException success) { |
923 |
assertTrue(success.getCause() instanceof NullPointerException); |
924 |
} finally { |
925 |
joinPool(e); |
926 |
} |
927 |
} |
928 |
|
929 |
/** |
930 |
* invokeAll(c) returns results of all completed tasks |
931 |
*/ |
932 |
public void testInvokeAll5() throws Exception { |
933 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
934 |
try { |
935 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
936 |
l.add(new StringTask()); |
937 |
l.add(new StringTask()); |
938 |
List<Future<String>> futures = e.invokeAll(l); |
939 |
assertEquals(2, futures.size()); |
940 |
for (Future<String> future : futures) |
941 |
assertSame(TEST_STRING, future.get()); |
942 |
} finally { |
943 |
joinPool(e); |
944 |
} |
945 |
} |
946 |
|
947 |
/** |
948 |
* timed invokeAny(null) throws NPE |
949 |
*/ |
950 |
public void testTimedInvokeAny1() throws Exception { |
951 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
952 |
try { |
953 |
e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS); |
954 |
shouldThrow(); |
955 |
} catch (NullPointerException success) { |
956 |
} finally { |
957 |
joinPool(e); |
958 |
} |
959 |
} |
960 |
|
961 |
/** |
962 |
* timed invokeAny(,,null) throws NPE |
963 |
*/ |
964 |
public void testTimedInvokeAnyNullTimeUnit() throws Exception { |
965 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
966 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
967 |
l.add(new StringTask()); |
968 |
try { |
969 |
e.invokeAny(l, MEDIUM_DELAY_MS, null); |
970 |
shouldThrow(); |
971 |
} catch (NullPointerException success) { |
972 |
} finally { |
973 |
joinPool(e); |
974 |
} |
975 |
} |
976 |
|
977 |
/** |
978 |
* timed invokeAny(empty collection) throws IAE |
979 |
*/ |
980 |
public void testTimedInvokeAny2() throws Exception { |
981 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
982 |
try { |
983 |
e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS); |
984 |
shouldThrow(); |
985 |
} catch (IllegalArgumentException success) { |
986 |
} finally { |
987 |
joinPool(e); |
988 |
} |
989 |
} |
990 |
|
991 |
/** |
992 |
* timed invokeAny(c) throws NPE if c has null elements |
993 |
*/ |
994 |
public void testTimedInvokeAny3() throws Exception { |
995 |
CountDownLatch latch = new CountDownLatch(1); |
996 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
997 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
998 |
l.add(latchAwaitingStringTask(latch)); |
999 |
l.add(null); |
1000 |
try { |
1001 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1002 |
shouldThrow(); |
1003 |
} catch (NullPointerException success) { |
1004 |
} finally { |
1005 |
latch.countDown(); |
1006 |
joinPool(e); |
1007 |
} |
1008 |
} |
1009 |
|
1010 |
/** |
1011 |
* timed invokeAny(c) throws ExecutionException if no task completes |
1012 |
*/ |
1013 |
public void testTimedInvokeAny4() throws Exception { |
1014 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1015 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1016 |
l.add(new NPETask()); |
1017 |
try { |
1018 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1019 |
shouldThrow(); |
1020 |
} catch (ExecutionException success) { |
1021 |
assertTrue(success.getCause() instanceof NullPointerException); |
1022 |
} finally { |
1023 |
joinPool(e); |
1024 |
} |
1025 |
} |
1026 |
|
1027 |
/** |
1028 |
* timed invokeAny(c) returns result of some task |
1029 |
*/ |
1030 |
public void testTimedInvokeAny5() throws Exception { |
1031 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1032 |
try { |
1033 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1034 |
l.add(new StringTask()); |
1035 |
l.add(new StringTask()); |
1036 |
String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1037 |
assertSame(TEST_STRING, result); |
1038 |
} finally { |
1039 |
joinPool(e); |
1040 |
} |
1041 |
} |
1042 |
|
1043 |
/** |
1044 |
* timed invokeAll(null) throws NPE |
1045 |
*/ |
1046 |
public void testTimedInvokeAll1() throws Exception { |
1047 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1048 |
try { |
1049 |
e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1050 |
shouldThrow(); |
1051 |
} catch (NullPointerException success) { |
1052 |
} finally { |
1053 |
joinPool(e); |
1054 |
} |
1055 |
} |
1056 |
|
1057 |
/** |
1058 |
* timed invokeAll(,,null) throws NPE |
1059 |
*/ |
1060 |
public void testTimedInvokeAllNullTimeUnit() throws Exception { |
1061 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1062 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1063 |
l.add(new StringTask()); |
1064 |
try { |
1065 |
e.invokeAll(l, MEDIUM_DELAY_MS, null); |
1066 |
shouldThrow(); |
1067 |
} catch (NullPointerException success) { |
1068 |
} finally { |
1069 |
joinPool(e); |
1070 |
} |
1071 |
} |
1072 |
|
1073 |
/** |
1074 |
* timed invokeAll(empty collection) returns empty collection |
1075 |
*/ |
1076 |
public void testTimedInvokeAll2() throws Exception { |
1077 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1078 |
try { |
1079 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS); |
1080 |
assertTrue(r.isEmpty()); |
1081 |
} finally { |
1082 |
joinPool(e); |
1083 |
} |
1084 |
} |
1085 |
|
1086 |
/** |
1087 |
* timed invokeAll(c) throws NPE if c has null elements |
1088 |
*/ |
1089 |
public void testTimedInvokeAll3() throws Exception { |
1090 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1091 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1092 |
l.add(new StringTask()); |
1093 |
l.add(null); |
1094 |
try { |
1095 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1096 |
shouldThrow(); |
1097 |
} catch (NullPointerException success) { |
1098 |
} finally { |
1099 |
joinPool(e); |
1100 |
} |
1101 |
} |
1102 |
|
1103 |
/** |
1104 |
* get of element of invokeAll(c) throws exception on failed task |
1105 |
*/ |
1106 |
public void testTimedInvokeAll4() throws Exception { |
1107 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1108 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1109 |
l.add(new NPETask()); |
1110 |
List<Future<String>> futures = |
1111 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1112 |
assertEquals(1, futures.size()); |
1113 |
try { |
1114 |
futures.get(0).get(); |
1115 |
shouldThrow(); |
1116 |
} catch (ExecutionException success) { |
1117 |
assertTrue(success.getCause() instanceof NullPointerException); |
1118 |
} finally { |
1119 |
joinPool(e); |
1120 |
} |
1121 |
} |
1122 |
|
1123 |
/** |
1124 |
* timed invokeAll(c) returns results of all completed tasks |
1125 |
*/ |
1126 |
public void testTimedInvokeAll5() throws Exception { |
1127 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1128 |
try { |
1129 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1130 |
l.add(new StringTask()); |
1131 |
l.add(new StringTask()); |
1132 |
List<Future<String>> futures = |
1133 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1134 |
assertEquals(2, futures.size()); |
1135 |
for (Future<String> future : futures) |
1136 |
assertSame(TEST_STRING, future.get()); |
1137 |
} finally { |
1138 |
joinPool(e); |
1139 |
} |
1140 |
} |
1141 |
|
1142 |
/** |
1143 |
* timed invokeAll(c) cancels tasks not completed by timeout |
1144 |
*/ |
1145 |
public void testTimedInvokeAll6() throws Exception { |
1146 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1147 |
try { |
1148 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1149 |
l.add(new StringTask()); |
1150 |
l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING)); |
1151 |
l.add(new StringTask()); |
1152 |
List<Future<String>> futures = |
1153 |
e.invokeAll(l, SHORT_DELAY_MS, MILLISECONDS); |
1154 |
assertEquals(3, futures.size()); |
1155 |
Iterator<Future<String>> it = futures.iterator(); |
1156 |
Future<String> f1 = it.next(); |
1157 |
Future<String> f2 = it.next(); |
1158 |
Future<String> f3 = it.next(); |
1159 |
assertTrue(f1.isDone()); |
1160 |
assertTrue(f2.isDone()); |
1161 |
assertTrue(f3.isDone()); |
1162 |
assertFalse(f1.isCancelled()); |
1163 |
assertTrue(f2.isCancelled()); |
1164 |
} finally { |
1165 |
joinPool(e); |
1166 |
} |
1167 |
} |
1168 |
|
1169 |
|
1170 |
} |