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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/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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|
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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|
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import java.util.ArrayList; |
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import java.util.List; |
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import java.util.concurrent.BlockingQueue; |
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import java.util.concurrent.Callable; |
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import java.util.concurrent.CancellationException; |
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import java.util.concurrent.CountDownLatch; |
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import java.util.concurrent.ExecutionException; |
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import java.util.concurrent.Executors; |
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import java.util.concurrent.ExecutorService; |
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import java.util.concurrent.Future; |
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import java.util.concurrent.RejectedExecutionException; |
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import java.util.concurrent.ScheduledFuture; |
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import java.util.concurrent.ScheduledThreadPoolExecutor; |
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import java.util.concurrent.ThreadFactory; |
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import java.util.concurrent.ThreadPoolExecutor; |
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import java.util.concurrent.atomic.AtomicInteger; |
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|
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import junit.framework.Test; |
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import junit.framework.TestSuite; |
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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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main(suite(), args); |
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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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* execute successfully executes a runnable |
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*/ |
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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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* 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 startTime = System.nanoTime(); |
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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(millisElapsedSince(startTime) >= timeoutMillis()); |
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return Boolean.TRUE; |
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}}; |
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Future f = p.schedule(task, timeoutMillis(), MILLISECONDS); |
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assertSame(Boolean.TRUE, f.get()); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
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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 startTime = System.nanoTime(); |
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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(millisElapsedSince(startTime) >= timeoutMillis()); |
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}}; |
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Future f = p.schedule(task, timeoutMillis(), MILLISECONDS); |
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await(done); |
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assertNull(f.get(LONG_DELAY_MS, MILLISECONDS)); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
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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 startTime = System.nanoTime(); |
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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(millisElapsedSince(startTime) >= timeoutMillis()); |
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}}; |
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ScheduledFuture f = |
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p.scheduleAtFixedRate(task, timeoutMillis(), |
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LONG_DELAY_MS, MILLISECONDS); |
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await(done); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
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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 Exception { |
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ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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final long startTime = System.nanoTime(); |
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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(millisElapsedSince(startTime) >= timeoutMillis()); |
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}}; |
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ScheduledFuture f = |
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p.scheduleWithFixedDelay(task, timeoutMillis(), |
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LONG_DELAY_MS, MILLISECONDS); |
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await(done); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
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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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try { |
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for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) { |
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long startTime = System.nanoTime(); |
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int cycles = 10; |
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final CountDownLatch done = new CountDownLatch(cycles); |
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Runnable task = new CheckedRunnable() { |
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public void realRun() { done.countDown(); }}; |
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ScheduledFuture h = |
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p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS); |
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done.await(); |
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h.cancel(true); |
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double normalizedTime = |
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(double) millisElapsedSince(startTime) / delay; |
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if (normalizedTime >= cycles - 1 && |
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normalizedTime <= cycles) |
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return; |
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} |
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throw new AssertionError("unexpected execution rate"); |
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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 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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try { |
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for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) { |
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long startTime = System.nanoTime(); |
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int cycles = 10; |
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final CountDownLatch done = new CountDownLatch(cycles); |
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Runnable task = new CheckedRunnable() { |
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public void realRun() { done.countDown(); }}; |
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ScheduledFuture h = |
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p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS); |
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done.await(); |
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h.cancel(true); |
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double normalizedTime = |
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(double) millisElapsedSince(startTime) / delay; |
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if (normalizedTime >= cycles - 1 && |
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normalizedTime <= cycles) |
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return; |
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} |
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throw new AssertionError("unexpected execution rate"); |
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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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* 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 { |
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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 NoOpRunnable(), |
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MEDIUM_DELAY_MS, MILLISECONDS); |
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shouldThrow(); |
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} catch (RejectedExecutionException success) { |
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} 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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/** |
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* schedule throws RejectedExecutionException if shutdown |
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*/ |
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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(), |
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MEDIUM_DELAY_MS, MILLISECONDS); |
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shouldThrow(); |
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} catch (RejectedExecutionException success) { |
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} 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 |
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*/ |
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public void testSchedule3_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(), |
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MEDIUM_DELAY_MS, MILLISECONDS); |
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shouldThrow(); |
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} catch (RejectedExecutionException success) { |
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} 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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* scheduleAtFixedRate throws RejectedExecutionException if shutdown |
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*/ |
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public void testScheduleAtFixedRate1_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.scheduleAtFixedRate(new NoOpRunnable(), |
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MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS); |
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shouldThrow(); |
297 |
} catch (RejectedExecutionException success) { |
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} 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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* scheduleWithFixedDelay throws RejectedExecutionException if shutdown |
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*/ |
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public void testScheduleWithFixedDelay1_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.scheduleWithFixedDelay(new NoOpRunnable(), |
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MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS); |
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shouldThrow(); |
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} catch (RejectedExecutionException success) { |
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} 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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/** |
320 |
* getActiveCount increases but doesn't overestimate, when a |
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* thread becomes active |
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*/ |
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public void testGetActiveCount() throws InterruptedException { |
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final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2); |
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final CountDownLatch threadStarted = new CountDownLatch(1); |
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final CountDownLatch done = new CountDownLatch(1); |
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try { |
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assertEquals(0, p.getActiveCount()); |
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p.execute(new CheckedRunnable() { |
330 |
public void realRun() throws InterruptedException { |
331 |
threadStarted.countDown(); |
332 |
assertEquals(1, p.getActiveCount()); |
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done.await(); |
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}}); |
335 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
336 |
assertEquals(1, p.getActiveCount()); |
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} finally { |
338 |
done.countDown(); |
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joinPool(p); |
340 |
} |
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} |
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|
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/** |
344 |
* getCompletedTaskCount increases, but doesn't overestimate, |
345 |
* when tasks complete |
346 |
*/ |
347 |
public void testGetCompletedTaskCount() throws InterruptedException { |
348 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2); |
349 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
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final CountDownLatch threadProceed = new CountDownLatch(1); |
351 |
final CountDownLatch threadDone = new CountDownLatch(1); |
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try { |
353 |
assertEquals(0, p.getCompletedTaskCount()); |
354 |
p.execute(new CheckedRunnable() { |
355 |
public void realRun() throws InterruptedException { |
356 |
threadStarted.countDown(); |
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assertEquals(0, p.getCompletedTaskCount()); |
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threadProceed.await(); |
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threadDone.countDown(); |
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}}); |
361 |
await(threadStarted); |
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assertEquals(0, p.getCompletedTaskCount()); |
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threadProceed.countDown(); |
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threadDone.await(); |
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long startTime = System.nanoTime(); |
366 |
while (p.getCompletedTaskCount() != 1) { |
367 |
if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
368 |
fail("timed out"); |
369 |
Thread.yield(); |
370 |
} |
371 |
} finally { |
372 |
joinPool(p); |
373 |
} |
374 |
} |
375 |
|
376 |
/** |
377 |
* getCorePoolSize returns size given in constructor if not otherwise set |
378 |
*/ |
379 |
public void testGetCorePoolSize() throws InterruptedException { |
380 |
ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
381 |
assertEquals(1, p.getCorePoolSize()); |
382 |
joinPool(p); |
383 |
} |
384 |
|
385 |
/** |
386 |
* getLargestPoolSize increases, but doesn't overestimate, when |
387 |
* multiple threads active |
388 |
*/ |
389 |
public void testGetLargestPoolSize() throws InterruptedException { |
390 |
final int THREADS = 3; |
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final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS); |
392 |
final CountDownLatch threadsStarted = new CountDownLatch(THREADS); |
393 |
final CountDownLatch done = new CountDownLatch(1); |
394 |
try { |
395 |
assertEquals(0, p.getLargestPoolSize()); |
396 |
for (int i = 0; i < THREADS; i++) |
397 |
p.execute(new CheckedRunnable() { |
398 |
public void realRun() throws InterruptedException { |
399 |
threadsStarted.countDown(); |
400 |
done.await(); |
401 |
assertEquals(THREADS, p.getLargestPoolSize()); |
402 |
}}); |
403 |
assertTrue(threadsStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
404 |
assertEquals(THREADS, p.getLargestPoolSize()); |
405 |
} finally { |
406 |
done.countDown(); |
407 |
joinPool(p); |
408 |
assertEquals(THREADS, p.getLargestPoolSize()); |
409 |
} |
410 |
} |
411 |
|
412 |
/** |
413 |
* getPoolSize increases, but doesn't overestimate, when threads |
414 |
* become active |
415 |
*/ |
416 |
public void testGetPoolSize() throws InterruptedException { |
417 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
418 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
419 |
final CountDownLatch done = new CountDownLatch(1); |
420 |
try { |
421 |
assertEquals(0, p.getPoolSize()); |
422 |
p.execute(new CheckedRunnable() { |
423 |
public void realRun() throws InterruptedException { |
424 |
threadStarted.countDown(); |
425 |
assertEquals(1, p.getPoolSize()); |
426 |
done.await(); |
427 |
}}); |
428 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
429 |
assertEquals(1, p.getPoolSize()); |
430 |
} finally { |
431 |
done.countDown(); |
432 |
joinPool(p); |
433 |
} |
434 |
} |
435 |
|
436 |
/** |
437 |
* getTaskCount increases, but doesn't overestimate, when tasks |
438 |
* submitted |
439 |
*/ |
440 |
public void testGetTaskCount() throws InterruptedException { |
441 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
442 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
443 |
final CountDownLatch done = new CountDownLatch(1); |
444 |
final int TASKS = 5; |
445 |
try { |
446 |
assertEquals(0, p.getTaskCount()); |
447 |
for (int i = 0; i < TASKS; i++) |
448 |
p.execute(new CheckedRunnable() { |
449 |
public void realRun() throws InterruptedException { |
450 |
threadStarted.countDown(); |
451 |
done.await(); |
452 |
}}); |
453 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
454 |
assertEquals(TASKS, p.getTaskCount()); |
455 |
} finally { |
456 |
done.countDown(); |
457 |
joinPool(p); |
458 |
} |
459 |
} |
460 |
|
461 |
/** |
462 |
* getThreadFactory returns factory in constructor if not set |
463 |
*/ |
464 |
public void testGetThreadFactory() throws InterruptedException { |
465 |
ThreadFactory tf = new SimpleThreadFactory(); |
466 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, tf); |
467 |
assertSame(tf, p.getThreadFactory()); |
468 |
joinPool(p); |
469 |
} |
470 |
|
471 |
/** |
472 |
* setThreadFactory sets the thread factory returned by getThreadFactory |
473 |
*/ |
474 |
public void testSetThreadFactory() throws InterruptedException { |
475 |
ThreadFactory tf = new SimpleThreadFactory(); |
476 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
477 |
p.setThreadFactory(tf); |
478 |
assertSame(tf, p.getThreadFactory()); |
479 |
joinPool(p); |
480 |
} |
481 |
|
482 |
/** |
483 |
* setThreadFactory(null) throws NPE |
484 |
*/ |
485 |
public void testSetThreadFactoryNull() throws InterruptedException { |
486 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
487 |
try { |
488 |
p.setThreadFactory(null); |
489 |
shouldThrow(); |
490 |
} catch (NullPointerException success) { |
491 |
} finally { |
492 |
joinPool(p); |
493 |
} |
494 |
} |
495 |
|
496 |
/** |
497 |
* isShutdown is false before shutdown, true after |
498 |
*/ |
499 |
public void testIsShutdown() { |
500 |
|
501 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
502 |
try { |
503 |
assertFalse(p.isShutdown()); |
504 |
} |
505 |
finally { |
506 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
507 |
} |
508 |
assertTrue(p.isShutdown()); |
509 |
} |
510 |
|
511 |
/** |
512 |
* isTerminated is false before termination, true after |
513 |
*/ |
514 |
public void testIsTerminated() throws InterruptedException { |
515 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
516 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
517 |
final CountDownLatch done = new CountDownLatch(1); |
518 |
assertFalse(p.isTerminated()); |
519 |
try { |
520 |
p.execute(new CheckedRunnable() { |
521 |
public void realRun() throws InterruptedException { |
522 |
assertFalse(p.isTerminated()); |
523 |
threadStarted.countDown(); |
524 |
done.await(); |
525 |
}}); |
526 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
527 |
assertFalse(p.isTerminating()); |
528 |
done.countDown(); |
529 |
} finally { |
530 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
531 |
} |
532 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
533 |
assertTrue(p.isTerminated()); |
534 |
} |
535 |
|
536 |
/** |
537 |
* isTerminating is not true when running or when terminated |
538 |
*/ |
539 |
public void testIsTerminating() throws InterruptedException { |
540 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
541 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
542 |
final CountDownLatch done = new CountDownLatch(1); |
543 |
try { |
544 |
assertFalse(p.isTerminating()); |
545 |
p.execute(new CheckedRunnable() { |
546 |
public void realRun() throws InterruptedException { |
547 |
assertFalse(p.isTerminating()); |
548 |
threadStarted.countDown(); |
549 |
done.await(); |
550 |
}}); |
551 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
552 |
assertFalse(p.isTerminating()); |
553 |
done.countDown(); |
554 |
} finally { |
555 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
556 |
} |
557 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
558 |
assertTrue(p.isTerminated()); |
559 |
assertFalse(p.isTerminating()); |
560 |
} |
561 |
|
562 |
/** |
563 |
* getQueue returns the work queue, which contains queued tasks |
564 |
*/ |
565 |
public void testGetQueue() throws InterruptedException { |
566 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
567 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
568 |
final CountDownLatch done = new CountDownLatch(1); |
569 |
try { |
570 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
571 |
for (int i = 0; i < tasks.length; i++) { |
572 |
Runnable r = new CheckedRunnable() { |
573 |
public void realRun() throws InterruptedException { |
574 |
threadStarted.countDown(); |
575 |
done.await(); |
576 |
}}; |
577 |
tasks[i] = p.schedule(r, 1, MILLISECONDS); |
578 |
} |
579 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
580 |
BlockingQueue<Runnable> q = p.getQueue(); |
581 |
assertTrue(q.contains(tasks[tasks.length - 1])); |
582 |
assertFalse(q.contains(tasks[0])); |
583 |
} finally { |
584 |
done.countDown(); |
585 |
joinPool(p); |
586 |
} |
587 |
} |
588 |
|
589 |
/** |
590 |
* remove(task) removes queued task, and fails to remove active task |
591 |
*/ |
592 |
public void testRemove() throws InterruptedException { |
593 |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
594 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
595 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
596 |
final CountDownLatch done = new CountDownLatch(1); |
597 |
try { |
598 |
for (int i = 0; i < tasks.length; i++) { |
599 |
Runnable r = new CheckedRunnable() { |
600 |
public void realRun() throws InterruptedException { |
601 |
threadStarted.countDown(); |
602 |
done.await(); |
603 |
}}; |
604 |
tasks[i] = p.schedule(r, 1, MILLISECONDS); |
605 |
} |
606 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
607 |
BlockingQueue<Runnable> q = p.getQueue(); |
608 |
assertFalse(p.remove((Runnable)tasks[0])); |
609 |
assertTrue(q.contains((Runnable)tasks[4])); |
610 |
assertTrue(q.contains((Runnable)tasks[3])); |
611 |
assertTrue(p.remove((Runnable)tasks[4])); |
612 |
assertFalse(p.remove((Runnable)tasks[4])); |
613 |
assertFalse(q.contains((Runnable)tasks[4])); |
614 |
assertTrue(q.contains((Runnable)tasks[3])); |
615 |
assertTrue(p.remove((Runnable)tasks[3])); |
616 |
assertFalse(q.contains((Runnable)tasks[3])); |
617 |
} finally { |
618 |
done.countDown(); |
619 |
joinPool(p); |
620 |
} |
621 |
} |
622 |
|
623 |
/** |
624 |
* purge eventually removes cancelled tasks from the queue |
625 |
*/ |
626 |
public void testPurge() throws InterruptedException { |
627 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
628 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
629 |
for (int i = 0; i < tasks.length; i++) |
630 |
tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(), |
631 |
LONG_DELAY_MS, MILLISECONDS); |
632 |
try { |
633 |
int max = tasks.length; |
634 |
if (tasks[4].cancel(true)) --max; |
635 |
if (tasks[3].cancel(true)) --max; |
636 |
// There must eventually be an interference-free point at |
637 |
// which purge will not fail. (At worst, when queue is empty.) |
638 |
long startTime = System.nanoTime(); |
639 |
do { |
640 |
p.purge(); |
641 |
long count = p.getTaskCount(); |
642 |
if (count == max) |
643 |
return; |
644 |
} while (millisElapsedSince(startTime) < MEDIUM_DELAY_MS); |
645 |
fail("Purge failed to remove cancelled tasks"); |
646 |
} finally { |
647 |
for (ScheduledFuture task : tasks) |
648 |
task.cancel(true); |
649 |
joinPool(p); |
650 |
} |
651 |
} |
652 |
|
653 |
/** |
654 |
* shutdownNow returns a list containing tasks that were not run, |
655 |
* and those tasks are drained from the queue |
656 |
*/ |
657 |
public void testShutdownNow() { |
658 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
659 |
for (int i = 0; i < 5; i++) |
660 |
p.schedule(new SmallPossiblyInterruptedRunnable(), |
661 |
LONG_DELAY_MS, MILLISECONDS); |
662 |
try { |
663 |
List<Runnable> l = p.shutdownNow(); |
664 |
assertTrue(p.isShutdown()); |
665 |
assertTrue(p.getQueue().isEmpty()); |
666 |
assertEquals(5, l.size()); |
667 |
} catch (SecurityException ok) { |
668 |
// Allowed in case test doesn't have privs |
669 |
} finally { |
670 |
joinPool(p); |
671 |
} |
672 |
} |
673 |
|
674 |
/** |
675 |
* In default setting, shutdown cancels periodic but not delayed |
676 |
* tasks at shutdown |
677 |
*/ |
678 |
public void testShutdown1() throws InterruptedException { |
679 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
680 |
assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
681 |
assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
682 |
|
683 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
684 |
for (int i = 0; i < tasks.length; i++) |
685 |
tasks[i] = p.schedule(new NoOpRunnable(), |
686 |
SHORT_DELAY_MS, MILLISECONDS); |
687 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
688 |
BlockingQueue<Runnable> q = p.getQueue(); |
689 |
for (ScheduledFuture task : tasks) { |
690 |
assertFalse(task.isDone()); |
691 |
assertFalse(task.isCancelled()); |
692 |
assertTrue(q.contains(task)); |
693 |
} |
694 |
assertTrue(p.isShutdown()); |
695 |
assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS)); |
696 |
assertTrue(p.isTerminated()); |
697 |
for (ScheduledFuture task : tasks) { |
698 |
assertTrue(task.isDone()); |
699 |
assertFalse(task.isCancelled()); |
700 |
} |
701 |
} |
702 |
|
703 |
/** |
704 |
* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false, |
705 |
* delayed tasks are cancelled at shutdown |
706 |
*/ |
707 |
public void testShutdown2() throws InterruptedException { |
708 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
709 |
p.setExecuteExistingDelayedTasksAfterShutdownPolicy(false); |
710 |
assertFalse(p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
711 |
assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
712 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
713 |
for (int i = 0; i < tasks.length; i++) |
714 |
tasks[i] = p.schedule(new NoOpRunnable(), |
715 |
SHORT_DELAY_MS, MILLISECONDS); |
716 |
BlockingQueue q = p.getQueue(); |
717 |
assertEquals(tasks.length, q.size()); |
718 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
719 |
assertTrue(p.isShutdown()); |
720 |
assertTrue(q.isEmpty()); |
721 |
assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS)); |
722 |
assertTrue(p.isTerminated()); |
723 |
for (ScheduledFuture task : tasks) { |
724 |
assertTrue(task.isDone()); |
725 |
assertTrue(task.isCancelled()); |
726 |
} |
727 |
} |
728 |
|
729 |
/** |
730 |
* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false, |
731 |
* periodic tasks are cancelled at shutdown |
732 |
*/ |
733 |
public void testShutdown3() throws InterruptedException { |
734 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
735 |
assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
736 |
assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
737 |
p.setContinueExistingPeriodicTasksAfterShutdownPolicy(false); |
738 |
assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
739 |
assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
740 |
long initialDelay = LONG_DELAY_MS; |
741 |
ScheduledFuture task = |
742 |
p.scheduleAtFixedRate(new NoOpRunnable(), initialDelay, |
743 |
5, MILLISECONDS); |
744 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
745 |
assertTrue(p.isShutdown()); |
746 |
assertTrue(p.getQueue().isEmpty()); |
747 |
assertTrue(task.isDone()); |
748 |
assertTrue(task.isCancelled()); |
749 |
joinPool(p); |
750 |
} |
751 |
|
752 |
/** |
753 |
* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true, |
754 |
* periodic tasks are not cancelled at shutdown |
755 |
*/ |
756 |
public void testShutdown4() throws InterruptedException { |
757 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
758 |
final CountDownLatch counter = new CountDownLatch(2); |
759 |
try { |
760 |
p.setContinueExistingPeriodicTasksAfterShutdownPolicy(true); |
761 |
assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
762 |
assertTrue(p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
763 |
final Runnable r = new CheckedRunnable() { |
764 |
public void realRun() { |
765 |
counter.countDown(); |
766 |
}}; |
767 |
ScheduledFuture task = |
768 |
p.scheduleAtFixedRate(r, 1, 1, MILLISECONDS); |
769 |
assertFalse(task.isDone()); |
770 |
assertFalse(task.isCancelled()); |
771 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
772 |
assertFalse(task.isCancelled()); |
773 |
assertFalse(p.isTerminated()); |
774 |
assertTrue(p.isShutdown()); |
775 |
assertTrue(counter.await(SMALL_DELAY_MS, MILLISECONDS)); |
776 |
assertFalse(task.isCancelled()); |
777 |
assertTrue(task.cancel(false)); |
778 |
assertTrue(task.isDone()); |
779 |
assertTrue(task.isCancelled()); |
780 |
assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS)); |
781 |
assertTrue(p.isTerminated()); |
782 |
} |
783 |
finally { |
784 |
joinPool(p); |
785 |
} |
786 |
} |
787 |
|
788 |
/** |
789 |
* completed submit of callable returns result |
790 |
*/ |
791 |
public void testSubmitCallable() throws Exception { |
792 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
793 |
try { |
794 |
Future<String> future = e.submit(new StringTask()); |
795 |
String result = future.get(); |
796 |
assertSame(TEST_STRING, result); |
797 |
} finally { |
798 |
joinPool(e); |
799 |
} |
800 |
} |
801 |
|
802 |
/** |
803 |
* completed submit of runnable returns successfully |
804 |
*/ |
805 |
public void testSubmitRunnable() throws Exception { |
806 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
807 |
try { |
808 |
Future<?> future = e.submit(new NoOpRunnable()); |
809 |
future.get(); |
810 |
assertTrue(future.isDone()); |
811 |
} finally { |
812 |
joinPool(e); |
813 |
} |
814 |
} |
815 |
|
816 |
/** |
817 |
* completed submit of (runnable, result) returns result |
818 |
*/ |
819 |
public void testSubmitRunnable2() throws Exception { |
820 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
821 |
try { |
822 |
Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING); |
823 |
String result = future.get(); |
824 |
assertSame(TEST_STRING, result); |
825 |
} finally { |
826 |
joinPool(e); |
827 |
} |
828 |
} |
829 |
|
830 |
/** |
831 |
* invokeAny(null) throws NPE |
832 |
*/ |
833 |
public void testInvokeAny1() throws Exception { |
834 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
835 |
try { |
836 |
e.invokeAny(null); |
837 |
shouldThrow(); |
838 |
} catch (NullPointerException success) { |
839 |
} finally { |
840 |
joinPool(e); |
841 |
} |
842 |
} |
843 |
|
844 |
/** |
845 |
* invokeAny(empty collection) throws IAE |
846 |
*/ |
847 |
public void testInvokeAny2() throws Exception { |
848 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
849 |
try { |
850 |
e.invokeAny(new ArrayList<Callable<String>>()); |
851 |
shouldThrow(); |
852 |
} catch (IllegalArgumentException success) { |
853 |
} finally { |
854 |
joinPool(e); |
855 |
} |
856 |
} |
857 |
|
858 |
/** |
859 |
* invokeAny(c) throws NPE if c has null elements |
860 |
*/ |
861 |
public void testInvokeAny3() throws Exception { |
862 |
CountDownLatch latch = new CountDownLatch(1); |
863 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
864 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
865 |
l.add(latchAwaitingStringTask(latch)); |
866 |
l.add(null); |
867 |
try { |
868 |
e.invokeAny(l); |
869 |
shouldThrow(); |
870 |
} catch (NullPointerException success) { |
871 |
} finally { |
872 |
latch.countDown(); |
873 |
joinPool(e); |
874 |
} |
875 |
} |
876 |
|
877 |
/** |
878 |
* invokeAny(c) throws ExecutionException if no task completes |
879 |
*/ |
880 |
public void testInvokeAny4() throws Exception { |
881 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
882 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
883 |
l.add(new NPETask()); |
884 |
try { |
885 |
e.invokeAny(l); |
886 |
shouldThrow(); |
887 |
} catch (ExecutionException success) { |
888 |
assertTrue(success.getCause() instanceof NullPointerException); |
889 |
} finally { |
890 |
joinPool(e); |
891 |
} |
892 |
} |
893 |
|
894 |
/** |
895 |
* invokeAny(c) returns result of some task |
896 |
*/ |
897 |
public void testInvokeAny5() throws Exception { |
898 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
899 |
try { |
900 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
901 |
l.add(new StringTask()); |
902 |
l.add(new StringTask()); |
903 |
String result = e.invokeAny(l); |
904 |
assertSame(TEST_STRING, result); |
905 |
} finally { |
906 |
joinPool(e); |
907 |
} |
908 |
} |
909 |
|
910 |
/** |
911 |
* invokeAll(null) throws NPE |
912 |
*/ |
913 |
public void testInvokeAll1() throws Exception { |
914 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
915 |
try { |
916 |
e.invokeAll(null); |
917 |
shouldThrow(); |
918 |
} catch (NullPointerException success) { |
919 |
} finally { |
920 |
joinPool(e); |
921 |
} |
922 |
} |
923 |
|
924 |
/** |
925 |
* invokeAll(empty collection) returns empty collection |
926 |
*/ |
927 |
public void testInvokeAll2() throws Exception { |
928 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
929 |
try { |
930 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>()); |
931 |
assertTrue(r.isEmpty()); |
932 |
} finally { |
933 |
joinPool(e); |
934 |
} |
935 |
} |
936 |
|
937 |
/** |
938 |
* invokeAll(c) throws NPE if c has null elements |
939 |
*/ |
940 |
public void testInvokeAll3() throws Exception { |
941 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
942 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
943 |
l.add(new StringTask()); |
944 |
l.add(null); |
945 |
try { |
946 |
e.invokeAll(l); |
947 |
shouldThrow(); |
948 |
} catch (NullPointerException success) { |
949 |
} finally { |
950 |
joinPool(e); |
951 |
} |
952 |
} |
953 |
|
954 |
/** |
955 |
* get of invokeAll(c) throws exception on failed task |
956 |
*/ |
957 |
public void testInvokeAll4() throws Exception { |
958 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
959 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
960 |
l.add(new NPETask()); |
961 |
List<Future<String>> futures = e.invokeAll(l); |
962 |
assertEquals(1, futures.size()); |
963 |
try { |
964 |
futures.get(0).get(); |
965 |
shouldThrow(); |
966 |
} catch (ExecutionException success) { |
967 |
assertTrue(success.getCause() instanceof NullPointerException); |
968 |
} finally { |
969 |
joinPool(e); |
970 |
} |
971 |
} |
972 |
|
973 |
/** |
974 |
* invokeAll(c) returns results of all completed tasks |
975 |
*/ |
976 |
public void testInvokeAll5() throws Exception { |
977 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
978 |
try { |
979 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
980 |
l.add(new StringTask()); |
981 |
l.add(new StringTask()); |
982 |
List<Future<String>> futures = e.invokeAll(l); |
983 |
assertEquals(2, futures.size()); |
984 |
for (Future<String> future : futures) |
985 |
assertSame(TEST_STRING, future.get()); |
986 |
} finally { |
987 |
joinPool(e); |
988 |
} |
989 |
} |
990 |
|
991 |
/** |
992 |
* timed invokeAny(null) throws NPE |
993 |
*/ |
994 |
public void testTimedInvokeAny1() throws Exception { |
995 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
996 |
try { |
997 |
e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS); |
998 |
shouldThrow(); |
999 |
} catch (NullPointerException success) { |
1000 |
} finally { |
1001 |
joinPool(e); |
1002 |
} |
1003 |
} |
1004 |
|
1005 |
/** |
1006 |
* timed invokeAny(,,null) throws NPE |
1007 |
*/ |
1008 |
public void testTimedInvokeAnyNullTimeUnit() throws Exception { |
1009 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1010 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1011 |
l.add(new StringTask()); |
1012 |
try { |
1013 |
e.invokeAny(l, MEDIUM_DELAY_MS, null); |
1014 |
shouldThrow(); |
1015 |
} catch (NullPointerException success) { |
1016 |
} finally { |
1017 |
joinPool(e); |
1018 |
} |
1019 |
} |
1020 |
|
1021 |
/** |
1022 |
* timed invokeAny(empty collection) throws IAE |
1023 |
*/ |
1024 |
public void testTimedInvokeAny2() throws Exception { |
1025 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1026 |
try { |
1027 |
e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS); |
1028 |
shouldThrow(); |
1029 |
} catch (IllegalArgumentException success) { |
1030 |
} finally { |
1031 |
joinPool(e); |
1032 |
} |
1033 |
} |
1034 |
|
1035 |
/** |
1036 |
* timed invokeAny(c) throws NPE if c has null elements |
1037 |
*/ |
1038 |
public void testTimedInvokeAny3() throws Exception { |
1039 |
CountDownLatch latch = new CountDownLatch(1); |
1040 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1041 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1042 |
l.add(latchAwaitingStringTask(latch)); |
1043 |
l.add(null); |
1044 |
try { |
1045 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1046 |
shouldThrow(); |
1047 |
} catch (NullPointerException success) { |
1048 |
} finally { |
1049 |
latch.countDown(); |
1050 |
joinPool(e); |
1051 |
} |
1052 |
} |
1053 |
|
1054 |
/** |
1055 |
* timed invokeAny(c) throws ExecutionException if no task completes |
1056 |
*/ |
1057 |
public void testTimedInvokeAny4() throws Exception { |
1058 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1059 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1060 |
l.add(new NPETask()); |
1061 |
try { |
1062 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1063 |
shouldThrow(); |
1064 |
} catch (ExecutionException success) { |
1065 |
assertTrue(success.getCause() instanceof NullPointerException); |
1066 |
} finally { |
1067 |
joinPool(e); |
1068 |
} |
1069 |
} |
1070 |
|
1071 |
/** |
1072 |
* timed invokeAny(c) returns result of some task |
1073 |
*/ |
1074 |
public void testTimedInvokeAny5() throws Exception { |
1075 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1076 |
try { |
1077 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1078 |
l.add(new StringTask()); |
1079 |
l.add(new StringTask()); |
1080 |
String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1081 |
assertSame(TEST_STRING, result); |
1082 |
} finally { |
1083 |
joinPool(e); |
1084 |
} |
1085 |
} |
1086 |
|
1087 |
/** |
1088 |
* timed invokeAll(null) throws NPE |
1089 |
*/ |
1090 |
public void testTimedInvokeAll1() throws Exception { |
1091 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1092 |
try { |
1093 |
e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1094 |
shouldThrow(); |
1095 |
} catch (NullPointerException success) { |
1096 |
} finally { |
1097 |
joinPool(e); |
1098 |
} |
1099 |
} |
1100 |
|
1101 |
/** |
1102 |
* timed invokeAll(,,null) throws NPE |
1103 |
*/ |
1104 |
public void testTimedInvokeAllNullTimeUnit() throws Exception { |
1105 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1106 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1107 |
l.add(new StringTask()); |
1108 |
try { |
1109 |
e.invokeAll(l, MEDIUM_DELAY_MS, null); |
1110 |
shouldThrow(); |
1111 |
} catch (NullPointerException success) { |
1112 |
} finally { |
1113 |
joinPool(e); |
1114 |
} |
1115 |
} |
1116 |
|
1117 |
/** |
1118 |
* timed invokeAll(empty collection) returns empty collection |
1119 |
*/ |
1120 |
public void testTimedInvokeAll2() throws Exception { |
1121 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1122 |
try { |
1123 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS); |
1124 |
assertTrue(r.isEmpty()); |
1125 |
} finally { |
1126 |
joinPool(e); |
1127 |
} |
1128 |
} |
1129 |
|
1130 |
/** |
1131 |
* timed invokeAll(c) throws NPE if c has null elements |
1132 |
*/ |
1133 |
public void testTimedInvokeAll3() throws Exception { |
1134 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1135 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1136 |
l.add(new StringTask()); |
1137 |
l.add(null); |
1138 |
try { |
1139 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1140 |
shouldThrow(); |
1141 |
} catch (NullPointerException success) { |
1142 |
} finally { |
1143 |
joinPool(e); |
1144 |
} |
1145 |
} |
1146 |
|
1147 |
/** |
1148 |
* get of element of invokeAll(c) throws exception on failed task |
1149 |
*/ |
1150 |
public void testTimedInvokeAll4() throws Exception { |
1151 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1152 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1153 |
l.add(new NPETask()); |
1154 |
List<Future<String>> futures = |
1155 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1156 |
assertEquals(1, futures.size()); |
1157 |
try { |
1158 |
futures.get(0).get(); |
1159 |
shouldThrow(); |
1160 |
} catch (ExecutionException success) { |
1161 |
assertTrue(success.getCause() instanceof NullPointerException); |
1162 |
} finally { |
1163 |
joinPool(e); |
1164 |
} |
1165 |
} |
1166 |
|
1167 |
/** |
1168 |
* timed invokeAll(c) returns results of all completed tasks |
1169 |
*/ |
1170 |
public void testTimedInvokeAll5() throws Exception { |
1171 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1172 |
try { |
1173 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1174 |
l.add(new StringTask()); |
1175 |
l.add(new StringTask()); |
1176 |
List<Future<String>> futures = |
1177 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1178 |
assertEquals(2, futures.size()); |
1179 |
for (Future<String> future : futures) |
1180 |
assertSame(TEST_STRING, future.get()); |
1181 |
} finally { |
1182 |
joinPool(e); |
1183 |
} |
1184 |
} |
1185 |
|
1186 |
/** |
1187 |
* timed invokeAll(c) cancels tasks not completed by timeout |
1188 |
*/ |
1189 |
public void testTimedInvokeAll6() throws Exception { |
1190 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1191 |
try { |
1192 |
for (long timeout = timeoutMillis();;) { |
1193 |
List<Callable<String>> tasks = new ArrayList<>(); |
1194 |
tasks.add(new StringTask("0")); |
1195 |
tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING)); |
1196 |
tasks.add(new StringTask("2")); |
1197 |
long startTime = System.nanoTime(); |
1198 |
List<Future<String>> futures = |
1199 |
e.invokeAll(tasks, timeout, MILLISECONDS); |
1200 |
assertEquals(tasks.size(), futures.size()); |
1201 |
assertTrue(millisElapsedSince(startTime) >= timeout); |
1202 |
for (Future future : futures) |
1203 |
assertTrue(future.isDone()); |
1204 |
assertTrue(futures.get(1).isCancelled()); |
1205 |
try { |
1206 |
assertEquals("0", futures.get(0).get()); |
1207 |
assertEquals("2", futures.get(2).get()); |
1208 |
break; |
1209 |
} catch (CancellationException retryWithLongerTimeout) { |
1210 |
timeout *= 2; |
1211 |
if (timeout >= LONG_DELAY_MS / 2) |
1212 |
fail("expected exactly one task to be cancelled"); |
1213 |
} |
1214 |
} |
1215 |
} finally { |
1216 |
joinPool(e); |
1217 |
} |
1218 |
} |
1219 |
|
1220 |
} |