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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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import static java.util.concurrent.TimeUnit.SECONDS; |
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|
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import java.util.ArrayList; |
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import java.util.HashSet; |
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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 |
275 |
*/ |
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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); |
282 |
shouldThrow(); |
283 |
} catch (RejectedExecutionException success) { |
284 |
} 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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/** |
290 |
* scheduleAtFixedRate throws RejectedExecutionException if shutdown |
291 |
*/ |
292 |
public void testScheduleAtFixedRate1_RejectedExecutionException() throws InterruptedException { |
293 |
ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1); |
294 |
try { |
295 |
se.shutdown(); |
296 |
se.scheduleAtFixedRate(new NoOpRunnable(), |
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MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS); |
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shouldThrow(); |
299 |
} catch (RejectedExecutionException success) { |
300 |
} 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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/** |
306 |
* scheduleWithFixedDelay throws RejectedExecutionException if shutdown |
307 |
*/ |
308 |
public void testScheduleWithFixedDelay1_RejectedExecutionException() throws InterruptedException { |
309 |
ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1); |
310 |
try { |
311 |
se.shutdown(); |
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se.scheduleWithFixedDelay(new NoOpRunnable(), |
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MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS); |
314 |
shouldThrow(); |
315 |
} catch (RejectedExecutionException success) { |
316 |
} catch (SecurityException ok) { |
317 |
} |
318 |
joinPool(se); |
319 |
} |
320 |
|
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/** |
322 |
* getActiveCount increases but doesn't overestimate, when a |
323 |
* thread becomes active |
324 |
*/ |
325 |
public void testGetActiveCount() throws InterruptedException { |
326 |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2); |
327 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
328 |
final CountDownLatch done = new CountDownLatch(1); |
329 |
try { |
330 |
assertEquals(0, p.getActiveCount()); |
331 |
p.execute(new CheckedRunnable() { |
332 |
public void realRun() throws InterruptedException { |
333 |
threadStarted.countDown(); |
334 |
assertEquals(1, p.getActiveCount()); |
335 |
done.await(); |
336 |
}}); |
337 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
338 |
assertEquals(1, p.getActiveCount()); |
339 |
} finally { |
340 |
done.countDown(); |
341 |
joinPool(p); |
342 |
} |
343 |
} |
344 |
|
345 |
/** |
346 |
* getCompletedTaskCount increases, but doesn't overestimate, |
347 |
* when tasks complete |
348 |
*/ |
349 |
public void testGetCompletedTaskCount() throws InterruptedException { |
350 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2); |
351 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
352 |
final CountDownLatch threadProceed = new CountDownLatch(1); |
353 |
final CountDownLatch threadDone = new CountDownLatch(1); |
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try { |
355 |
assertEquals(0, p.getCompletedTaskCount()); |
356 |
p.execute(new CheckedRunnable() { |
357 |
public void realRun() throws InterruptedException { |
358 |
threadStarted.countDown(); |
359 |
assertEquals(0, p.getCompletedTaskCount()); |
360 |
threadProceed.await(); |
361 |
threadDone.countDown(); |
362 |
}}); |
363 |
await(threadStarted); |
364 |
assertEquals(0, p.getCompletedTaskCount()); |
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threadProceed.countDown(); |
366 |
threadDone.await(); |
367 |
long startTime = System.nanoTime(); |
368 |
while (p.getCompletedTaskCount() != 1) { |
369 |
if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
370 |
fail("timed out"); |
371 |
Thread.yield(); |
372 |
} |
373 |
} finally { |
374 |
joinPool(p); |
375 |
} |
376 |
} |
377 |
|
378 |
/** |
379 |
* getCorePoolSize returns size given in constructor if not otherwise set |
380 |
*/ |
381 |
public void testGetCorePoolSize() throws InterruptedException { |
382 |
ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
383 |
assertEquals(1, p.getCorePoolSize()); |
384 |
joinPool(p); |
385 |
} |
386 |
|
387 |
/** |
388 |
* getLargestPoolSize increases, but doesn't overestimate, when |
389 |
* multiple threads active |
390 |
*/ |
391 |
public void testGetLargestPoolSize() throws InterruptedException { |
392 |
final int THREADS = 3; |
393 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS); |
394 |
final CountDownLatch threadsStarted = new CountDownLatch(THREADS); |
395 |
final CountDownLatch done = new CountDownLatch(1); |
396 |
try { |
397 |
assertEquals(0, p.getLargestPoolSize()); |
398 |
for (int i = 0; i < THREADS; i++) |
399 |
p.execute(new CheckedRunnable() { |
400 |
public void realRun() throws InterruptedException { |
401 |
threadsStarted.countDown(); |
402 |
done.await(); |
403 |
assertEquals(THREADS, p.getLargestPoolSize()); |
404 |
}}); |
405 |
assertTrue(threadsStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
406 |
assertEquals(THREADS, p.getLargestPoolSize()); |
407 |
} finally { |
408 |
done.countDown(); |
409 |
joinPool(p); |
410 |
assertEquals(THREADS, p.getLargestPoolSize()); |
411 |
} |
412 |
} |
413 |
|
414 |
/** |
415 |
* getPoolSize increases, but doesn't overestimate, when threads |
416 |
* become active |
417 |
*/ |
418 |
public void testGetPoolSize() throws InterruptedException { |
419 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
420 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
421 |
final CountDownLatch done = new CountDownLatch(1); |
422 |
try { |
423 |
assertEquals(0, p.getPoolSize()); |
424 |
p.execute(new CheckedRunnable() { |
425 |
public void realRun() throws InterruptedException { |
426 |
threadStarted.countDown(); |
427 |
assertEquals(1, p.getPoolSize()); |
428 |
done.await(); |
429 |
}}); |
430 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
431 |
assertEquals(1, p.getPoolSize()); |
432 |
} finally { |
433 |
done.countDown(); |
434 |
joinPool(p); |
435 |
} |
436 |
} |
437 |
|
438 |
/** |
439 |
* getTaskCount increases, but doesn't overestimate, when tasks |
440 |
* submitted |
441 |
*/ |
442 |
public void testGetTaskCount() throws InterruptedException { |
443 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
444 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
445 |
final CountDownLatch done = new CountDownLatch(1); |
446 |
final int TASKS = 5; |
447 |
try { |
448 |
assertEquals(0, p.getTaskCount()); |
449 |
for (int i = 0; i < TASKS; i++) |
450 |
p.execute(new CheckedRunnable() { |
451 |
public void realRun() throws InterruptedException { |
452 |
threadStarted.countDown(); |
453 |
done.await(); |
454 |
}}); |
455 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
456 |
assertEquals(TASKS, p.getTaskCount()); |
457 |
} finally { |
458 |
done.countDown(); |
459 |
joinPool(p); |
460 |
} |
461 |
} |
462 |
|
463 |
/** |
464 |
* getThreadFactory returns factory in constructor if not set |
465 |
*/ |
466 |
public void testGetThreadFactory() throws InterruptedException { |
467 |
ThreadFactory tf = new SimpleThreadFactory(); |
468 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, tf); |
469 |
assertSame(tf, p.getThreadFactory()); |
470 |
joinPool(p); |
471 |
} |
472 |
|
473 |
/** |
474 |
* setThreadFactory sets the thread factory returned by getThreadFactory |
475 |
*/ |
476 |
public void testSetThreadFactory() throws InterruptedException { |
477 |
ThreadFactory tf = new SimpleThreadFactory(); |
478 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
479 |
p.setThreadFactory(tf); |
480 |
assertSame(tf, p.getThreadFactory()); |
481 |
joinPool(p); |
482 |
} |
483 |
|
484 |
/** |
485 |
* setThreadFactory(null) throws NPE |
486 |
*/ |
487 |
public void testSetThreadFactoryNull() throws InterruptedException { |
488 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
489 |
try { |
490 |
p.setThreadFactory(null); |
491 |
shouldThrow(); |
492 |
} catch (NullPointerException success) { |
493 |
} finally { |
494 |
joinPool(p); |
495 |
} |
496 |
} |
497 |
|
498 |
/** |
499 |
* isShutdown is false before shutdown, true after |
500 |
*/ |
501 |
public void testIsShutdown() { |
502 |
|
503 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
504 |
try { |
505 |
assertFalse(p.isShutdown()); |
506 |
} |
507 |
finally { |
508 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
509 |
} |
510 |
assertTrue(p.isShutdown()); |
511 |
} |
512 |
|
513 |
/** |
514 |
* isTerminated is false before termination, true after |
515 |
*/ |
516 |
public void testIsTerminated() throws InterruptedException { |
517 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
518 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
519 |
final CountDownLatch done = new CountDownLatch(1); |
520 |
assertFalse(p.isTerminated()); |
521 |
try { |
522 |
p.execute(new CheckedRunnable() { |
523 |
public void realRun() throws InterruptedException { |
524 |
assertFalse(p.isTerminated()); |
525 |
threadStarted.countDown(); |
526 |
done.await(); |
527 |
}}); |
528 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
529 |
assertFalse(p.isTerminating()); |
530 |
done.countDown(); |
531 |
} finally { |
532 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
533 |
} |
534 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
535 |
assertTrue(p.isTerminated()); |
536 |
} |
537 |
|
538 |
/** |
539 |
* isTerminating is not true when running or when terminated |
540 |
*/ |
541 |
public void testIsTerminating() throws InterruptedException { |
542 |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
543 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
544 |
final CountDownLatch done = new CountDownLatch(1); |
545 |
try { |
546 |
assertFalse(p.isTerminating()); |
547 |
p.execute(new CheckedRunnable() { |
548 |
public void realRun() throws InterruptedException { |
549 |
assertFalse(p.isTerminating()); |
550 |
threadStarted.countDown(); |
551 |
done.await(); |
552 |
}}); |
553 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
554 |
assertFalse(p.isTerminating()); |
555 |
done.countDown(); |
556 |
} finally { |
557 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
558 |
} |
559 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
560 |
assertTrue(p.isTerminated()); |
561 |
assertFalse(p.isTerminating()); |
562 |
} |
563 |
|
564 |
/** |
565 |
* getQueue returns the work queue, which contains queued tasks |
566 |
*/ |
567 |
public void testGetQueue() throws InterruptedException { |
568 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
569 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
570 |
final CountDownLatch done = new CountDownLatch(1); |
571 |
try { |
572 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
573 |
for (int i = 0; i < tasks.length; i++) { |
574 |
Runnable r = new CheckedRunnable() { |
575 |
public void realRun() throws InterruptedException { |
576 |
threadStarted.countDown(); |
577 |
done.await(); |
578 |
}}; |
579 |
tasks[i] = p.schedule(r, 1, MILLISECONDS); |
580 |
} |
581 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
582 |
BlockingQueue<Runnable> q = p.getQueue(); |
583 |
assertTrue(q.contains(tasks[tasks.length - 1])); |
584 |
assertFalse(q.contains(tasks[0])); |
585 |
} finally { |
586 |
done.countDown(); |
587 |
joinPool(p); |
588 |
} |
589 |
} |
590 |
|
591 |
/** |
592 |
* remove(task) removes queued task, and fails to remove active task |
593 |
*/ |
594 |
public void testRemove() throws InterruptedException { |
595 |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
596 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
597 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
598 |
final CountDownLatch done = new CountDownLatch(1); |
599 |
try { |
600 |
for (int i = 0; i < tasks.length; i++) { |
601 |
Runnable r = new CheckedRunnable() { |
602 |
public void realRun() throws InterruptedException { |
603 |
threadStarted.countDown(); |
604 |
done.await(); |
605 |
}}; |
606 |
tasks[i] = p.schedule(r, 1, MILLISECONDS); |
607 |
} |
608 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
609 |
BlockingQueue<Runnable> q = p.getQueue(); |
610 |
assertFalse(p.remove((Runnable)tasks[0])); |
611 |
assertTrue(q.contains((Runnable)tasks[4])); |
612 |
assertTrue(q.contains((Runnable)tasks[3])); |
613 |
assertTrue(p.remove((Runnable)tasks[4])); |
614 |
assertFalse(p.remove((Runnable)tasks[4])); |
615 |
assertFalse(q.contains((Runnable)tasks[4])); |
616 |
assertTrue(q.contains((Runnable)tasks[3])); |
617 |
assertTrue(p.remove((Runnable)tasks[3])); |
618 |
assertFalse(q.contains((Runnable)tasks[3])); |
619 |
} finally { |
620 |
done.countDown(); |
621 |
joinPool(p); |
622 |
} |
623 |
} |
624 |
|
625 |
/** |
626 |
* purge eventually removes cancelled tasks from the queue |
627 |
*/ |
628 |
public void testPurge() throws InterruptedException { |
629 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
630 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
631 |
for (int i = 0; i < tasks.length; i++) |
632 |
tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(), |
633 |
LONG_DELAY_MS, MILLISECONDS); |
634 |
try { |
635 |
int max = tasks.length; |
636 |
if (tasks[4].cancel(true)) --max; |
637 |
if (tasks[3].cancel(true)) --max; |
638 |
// There must eventually be an interference-free point at |
639 |
// which purge will not fail. (At worst, when queue is empty.) |
640 |
long startTime = System.nanoTime(); |
641 |
do { |
642 |
p.purge(); |
643 |
long count = p.getTaskCount(); |
644 |
if (count == max) |
645 |
return; |
646 |
} while (millisElapsedSince(startTime) < MEDIUM_DELAY_MS); |
647 |
fail("Purge failed to remove cancelled tasks"); |
648 |
} finally { |
649 |
for (ScheduledFuture task : tasks) |
650 |
task.cancel(true); |
651 |
joinPool(p); |
652 |
} |
653 |
} |
654 |
|
655 |
/** |
656 |
* shutdownNow returns a list containing tasks that were not run, |
657 |
* and those tasks are drained from the queue |
658 |
*/ |
659 |
public void testShutdownNow_delayedTasks() throws InterruptedException { |
660 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
661 |
List<ScheduledFuture> tasks = new ArrayList<>(); |
662 |
for (int i = 0; i < 3; i++) { |
663 |
Runnable r = new NoOpRunnable(); |
664 |
tasks.add(p.schedule(r, 9, SECONDS)); |
665 |
tasks.add(p.scheduleAtFixedRate(r, 9, 9, SECONDS)); |
666 |
tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS)); |
667 |
} |
668 |
if (testImplementationDetails) |
669 |
assertEquals(new HashSet(tasks), new HashSet(p.getQueue())); |
670 |
final List<Runnable> queuedTasks; |
671 |
try { |
672 |
queuedTasks = p.shutdownNow(); |
673 |
} catch (SecurityException ok) { |
674 |
return; // Allowed in case test doesn't have privs |
675 |
} |
676 |
assertTrue(p.isShutdown()); |
677 |
assertTrue(p.getQueue().isEmpty()); |
678 |
if (testImplementationDetails) |
679 |
assertEquals(new HashSet(tasks), new HashSet(queuedTasks)); |
680 |
assertEquals(tasks.size(), queuedTasks.size()); |
681 |
for (ScheduledFuture task : tasks) { |
682 |
assertFalse(task.isDone()); |
683 |
assertFalse(task.isCancelled()); |
684 |
} |
685 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
686 |
assertTrue(p.isTerminated()); |
687 |
} |
688 |
|
689 |
/** |
690 |
* In default setting, shutdown cancels periodic but not delayed |
691 |
* tasks at shutdown |
692 |
*/ |
693 |
public void testShutdown1() throws InterruptedException { |
694 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
695 |
assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
696 |
assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
697 |
|
698 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
699 |
for (int i = 0; i < tasks.length; i++) |
700 |
tasks[i] = p.schedule(new NoOpRunnable(), |
701 |
SHORT_DELAY_MS, MILLISECONDS); |
702 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
703 |
BlockingQueue<Runnable> q = p.getQueue(); |
704 |
for (ScheduledFuture task : tasks) { |
705 |
assertFalse(task.isDone()); |
706 |
assertFalse(task.isCancelled()); |
707 |
assertTrue(q.contains(task)); |
708 |
} |
709 |
assertTrue(p.isShutdown()); |
710 |
assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS)); |
711 |
assertTrue(p.isTerminated()); |
712 |
for (ScheduledFuture task : tasks) { |
713 |
assertTrue(task.isDone()); |
714 |
assertFalse(task.isCancelled()); |
715 |
} |
716 |
} |
717 |
|
718 |
/** |
719 |
* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false, |
720 |
* delayed tasks are cancelled at shutdown |
721 |
*/ |
722 |
public void testShutdown2() throws InterruptedException { |
723 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
724 |
p.setExecuteExistingDelayedTasksAfterShutdownPolicy(false); |
725 |
assertFalse(p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
726 |
assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
727 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
728 |
for (int i = 0; i < tasks.length; i++) |
729 |
tasks[i] = p.schedule(new NoOpRunnable(), |
730 |
SHORT_DELAY_MS, MILLISECONDS); |
731 |
BlockingQueue q = p.getQueue(); |
732 |
assertEquals(tasks.length, q.size()); |
733 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
734 |
assertTrue(p.isShutdown()); |
735 |
assertTrue(q.isEmpty()); |
736 |
assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS)); |
737 |
assertTrue(p.isTerminated()); |
738 |
for (ScheduledFuture task : tasks) { |
739 |
assertTrue(task.isDone()); |
740 |
assertTrue(task.isCancelled()); |
741 |
} |
742 |
} |
743 |
|
744 |
/** |
745 |
* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false, |
746 |
* periodic tasks are cancelled at shutdown |
747 |
*/ |
748 |
public void testShutdown3() throws InterruptedException { |
749 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
750 |
assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
751 |
assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
752 |
p.setContinueExistingPeriodicTasksAfterShutdownPolicy(false); |
753 |
assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
754 |
assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
755 |
long initialDelay = LONG_DELAY_MS; |
756 |
ScheduledFuture task = |
757 |
p.scheduleAtFixedRate(new NoOpRunnable(), initialDelay, |
758 |
5, MILLISECONDS); |
759 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
760 |
assertTrue(p.isShutdown()); |
761 |
assertTrue(p.getQueue().isEmpty()); |
762 |
assertTrue(task.isDone()); |
763 |
assertTrue(task.isCancelled()); |
764 |
joinPool(p); |
765 |
} |
766 |
|
767 |
/** |
768 |
* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true, |
769 |
* periodic tasks are not cancelled at shutdown |
770 |
*/ |
771 |
public void testShutdown4() throws InterruptedException { |
772 |
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
773 |
final CountDownLatch counter = new CountDownLatch(2); |
774 |
try { |
775 |
p.setContinueExistingPeriodicTasksAfterShutdownPolicy(true); |
776 |
assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
777 |
assertTrue(p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
778 |
final Runnable r = new CheckedRunnable() { |
779 |
public void realRun() { |
780 |
counter.countDown(); |
781 |
}}; |
782 |
ScheduledFuture task = |
783 |
p.scheduleAtFixedRate(r, 1, 1, MILLISECONDS); |
784 |
assertFalse(task.isDone()); |
785 |
assertFalse(task.isCancelled()); |
786 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
787 |
assertFalse(task.isCancelled()); |
788 |
assertFalse(p.isTerminated()); |
789 |
assertTrue(p.isShutdown()); |
790 |
assertTrue(counter.await(SMALL_DELAY_MS, MILLISECONDS)); |
791 |
assertFalse(task.isCancelled()); |
792 |
assertTrue(task.cancel(false)); |
793 |
assertTrue(task.isDone()); |
794 |
assertTrue(task.isCancelled()); |
795 |
assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS)); |
796 |
assertTrue(p.isTerminated()); |
797 |
} |
798 |
finally { |
799 |
joinPool(p); |
800 |
} |
801 |
} |
802 |
|
803 |
/** |
804 |
* completed submit of callable returns result |
805 |
*/ |
806 |
public void testSubmitCallable() throws Exception { |
807 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
808 |
try { |
809 |
Future<String> future = e.submit(new StringTask()); |
810 |
String result = future.get(); |
811 |
assertSame(TEST_STRING, result); |
812 |
} finally { |
813 |
joinPool(e); |
814 |
} |
815 |
} |
816 |
|
817 |
/** |
818 |
* completed submit of runnable returns successfully |
819 |
*/ |
820 |
public void testSubmitRunnable() throws Exception { |
821 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
822 |
try { |
823 |
Future<?> future = e.submit(new NoOpRunnable()); |
824 |
future.get(); |
825 |
assertTrue(future.isDone()); |
826 |
} finally { |
827 |
joinPool(e); |
828 |
} |
829 |
} |
830 |
|
831 |
/** |
832 |
* completed submit of (runnable, result) returns result |
833 |
*/ |
834 |
public void testSubmitRunnable2() throws Exception { |
835 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
836 |
try { |
837 |
Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING); |
838 |
String result = future.get(); |
839 |
assertSame(TEST_STRING, result); |
840 |
} finally { |
841 |
joinPool(e); |
842 |
} |
843 |
} |
844 |
|
845 |
/** |
846 |
* invokeAny(null) throws NPE |
847 |
*/ |
848 |
public void testInvokeAny1() throws Exception { |
849 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
850 |
try { |
851 |
e.invokeAny(null); |
852 |
shouldThrow(); |
853 |
} catch (NullPointerException success) { |
854 |
} finally { |
855 |
joinPool(e); |
856 |
} |
857 |
} |
858 |
|
859 |
/** |
860 |
* invokeAny(empty collection) throws IAE |
861 |
*/ |
862 |
public void testInvokeAny2() throws Exception { |
863 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
864 |
try { |
865 |
e.invokeAny(new ArrayList<Callable<String>>()); |
866 |
shouldThrow(); |
867 |
} catch (IllegalArgumentException success) { |
868 |
} finally { |
869 |
joinPool(e); |
870 |
} |
871 |
} |
872 |
|
873 |
/** |
874 |
* invokeAny(c) throws NPE if c has null elements |
875 |
*/ |
876 |
public void testInvokeAny3() throws Exception { |
877 |
CountDownLatch latch = new CountDownLatch(1); |
878 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
879 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
880 |
l.add(latchAwaitingStringTask(latch)); |
881 |
l.add(null); |
882 |
try { |
883 |
e.invokeAny(l); |
884 |
shouldThrow(); |
885 |
} catch (NullPointerException success) { |
886 |
} finally { |
887 |
latch.countDown(); |
888 |
joinPool(e); |
889 |
} |
890 |
} |
891 |
|
892 |
/** |
893 |
* invokeAny(c) throws ExecutionException if no task completes |
894 |
*/ |
895 |
public void testInvokeAny4() throws Exception { |
896 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
897 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
898 |
l.add(new NPETask()); |
899 |
try { |
900 |
e.invokeAny(l); |
901 |
shouldThrow(); |
902 |
} catch (ExecutionException success) { |
903 |
assertTrue(success.getCause() instanceof NullPointerException); |
904 |
} finally { |
905 |
joinPool(e); |
906 |
} |
907 |
} |
908 |
|
909 |
/** |
910 |
* invokeAny(c) returns result of some task |
911 |
*/ |
912 |
public void testInvokeAny5() throws Exception { |
913 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
914 |
try { |
915 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
916 |
l.add(new StringTask()); |
917 |
l.add(new StringTask()); |
918 |
String result = e.invokeAny(l); |
919 |
assertSame(TEST_STRING, result); |
920 |
} finally { |
921 |
joinPool(e); |
922 |
} |
923 |
} |
924 |
|
925 |
/** |
926 |
* invokeAll(null) throws NPE |
927 |
*/ |
928 |
public void testInvokeAll1() throws Exception { |
929 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
930 |
try { |
931 |
e.invokeAll(null); |
932 |
shouldThrow(); |
933 |
} catch (NullPointerException success) { |
934 |
} finally { |
935 |
joinPool(e); |
936 |
} |
937 |
} |
938 |
|
939 |
/** |
940 |
* invokeAll(empty collection) returns empty collection |
941 |
*/ |
942 |
public void testInvokeAll2() throws Exception { |
943 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
944 |
try { |
945 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>()); |
946 |
assertTrue(r.isEmpty()); |
947 |
} finally { |
948 |
joinPool(e); |
949 |
} |
950 |
} |
951 |
|
952 |
/** |
953 |
* invokeAll(c) throws NPE if c has null elements |
954 |
*/ |
955 |
public void testInvokeAll3() throws Exception { |
956 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
957 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
958 |
l.add(new StringTask()); |
959 |
l.add(null); |
960 |
try { |
961 |
e.invokeAll(l); |
962 |
shouldThrow(); |
963 |
} catch (NullPointerException success) { |
964 |
} finally { |
965 |
joinPool(e); |
966 |
} |
967 |
} |
968 |
|
969 |
/** |
970 |
* get of invokeAll(c) throws exception on failed task |
971 |
*/ |
972 |
public void testInvokeAll4() throws Exception { |
973 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
974 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
975 |
l.add(new NPETask()); |
976 |
List<Future<String>> futures = e.invokeAll(l); |
977 |
assertEquals(1, futures.size()); |
978 |
try { |
979 |
futures.get(0).get(); |
980 |
shouldThrow(); |
981 |
} catch (ExecutionException success) { |
982 |
assertTrue(success.getCause() instanceof NullPointerException); |
983 |
} finally { |
984 |
joinPool(e); |
985 |
} |
986 |
} |
987 |
|
988 |
/** |
989 |
* invokeAll(c) returns results of all completed tasks |
990 |
*/ |
991 |
public void testInvokeAll5() throws Exception { |
992 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
993 |
try { |
994 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
995 |
l.add(new StringTask()); |
996 |
l.add(new StringTask()); |
997 |
List<Future<String>> futures = e.invokeAll(l); |
998 |
assertEquals(2, futures.size()); |
999 |
for (Future<String> future : futures) |
1000 |
assertSame(TEST_STRING, future.get()); |
1001 |
} finally { |
1002 |
joinPool(e); |
1003 |
} |
1004 |
} |
1005 |
|
1006 |
/** |
1007 |
* timed invokeAny(null) throws NPE |
1008 |
*/ |
1009 |
public void testTimedInvokeAny1() throws Exception { |
1010 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1011 |
try { |
1012 |
e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1013 |
shouldThrow(); |
1014 |
} catch (NullPointerException success) { |
1015 |
} finally { |
1016 |
joinPool(e); |
1017 |
} |
1018 |
} |
1019 |
|
1020 |
/** |
1021 |
* timed invokeAny(,,null) throws NPE |
1022 |
*/ |
1023 |
public void testTimedInvokeAnyNullTimeUnit() throws Exception { |
1024 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1025 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1026 |
l.add(new StringTask()); |
1027 |
try { |
1028 |
e.invokeAny(l, MEDIUM_DELAY_MS, null); |
1029 |
shouldThrow(); |
1030 |
} catch (NullPointerException success) { |
1031 |
} finally { |
1032 |
joinPool(e); |
1033 |
} |
1034 |
} |
1035 |
|
1036 |
/** |
1037 |
* timed invokeAny(empty collection) throws IAE |
1038 |
*/ |
1039 |
public void testTimedInvokeAny2() throws Exception { |
1040 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1041 |
try { |
1042 |
e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS); |
1043 |
shouldThrow(); |
1044 |
} catch (IllegalArgumentException success) { |
1045 |
} finally { |
1046 |
joinPool(e); |
1047 |
} |
1048 |
} |
1049 |
|
1050 |
/** |
1051 |
* timed invokeAny(c) throws NPE if c has null elements |
1052 |
*/ |
1053 |
public void testTimedInvokeAny3() throws Exception { |
1054 |
CountDownLatch latch = new CountDownLatch(1); |
1055 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1056 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1057 |
l.add(latchAwaitingStringTask(latch)); |
1058 |
l.add(null); |
1059 |
try { |
1060 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1061 |
shouldThrow(); |
1062 |
} catch (NullPointerException success) { |
1063 |
} finally { |
1064 |
latch.countDown(); |
1065 |
joinPool(e); |
1066 |
} |
1067 |
} |
1068 |
|
1069 |
/** |
1070 |
* timed invokeAny(c) throws ExecutionException if no task completes |
1071 |
*/ |
1072 |
public void testTimedInvokeAny4() throws Exception { |
1073 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1074 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1075 |
l.add(new NPETask()); |
1076 |
try { |
1077 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1078 |
shouldThrow(); |
1079 |
} catch (ExecutionException success) { |
1080 |
assertTrue(success.getCause() instanceof NullPointerException); |
1081 |
} finally { |
1082 |
joinPool(e); |
1083 |
} |
1084 |
} |
1085 |
|
1086 |
/** |
1087 |
* timed invokeAny(c) returns result of some task |
1088 |
*/ |
1089 |
public void testTimedInvokeAny5() throws Exception { |
1090 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1091 |
try { |
1092 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1093 |
l.add(new StringTask()); |
1094 |
l.add(new StringTask()); |
1095 |
String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1096 |
assertSame(TEST_STRING, result); |
1097 |
} finally { |
1098 |
joinPool(e); |
1099 |
} |
1100 |
} |
1101 |
|
1102 |
/** |
1103 |
* timed invokeAll(null) throws NPE |
1104 |
*/ |
1105 |
public void testTimedInvokeAll1() throws Exception { |
1106 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1107 |
try { |
1108 |
e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1109 |
shouldThrow(); |
1110 |
} catch (NullPointerException success) { |
1111 |
} finally { |
1112 |
joinPool(e); |
1113 |
} |
1114 |
} |
1115 |
|
1116 |
/** |
1117 |
* timed invokeAll(,,null) throws NPE |
1118 |
*/ |
1119 |
public void testTimedInvokeAllNullTimeUnit() throws Exception { |
1120 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1121 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1122 |
l.add(new StringTask()); |
1123 |
try { |
1124 |
e.invokeAll(l, MEDIUM_DELAY_MS, null); |
1125 |
shouldThrow(); |
1126 |
} catch (NullPointerException success) { |
1127 |
} finally { |
1128 |
joinPool(e); |
1129 |
} |
1130 |
} |
1131 |
|
1132 |
/** |
1133 |
* timed invokeAll(empty collection) returns empty collection |
1134 |
*/ |
1135 |
public void testTimedInvokeAll2() throws Exception { |
1136 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1137 |
try { |
1138 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS); |
1139 |
assertTrue(r.isEmpty()); |
1140 |
} finally { |
1141 |
joinPool(e); |
1142 |
} |
1143 |
} |
1144 |
|
1145 |
/** |
1146 |
* timed invokeAll(c) throws NPE if c has null elements |
1147 |
*/ |
1148 |
public void testTimedInvokeAll3() throws Exception { |
1149 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1150 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1151 |
l.add(new StringTask()); |
1152 |
l.add(null); |
1153 |
try { |
1154 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1155 |
shouldThrow(); |
1156 |
} catch (NullPointerException success) { |
1157 |
} finally { |
1158 |
joinPool(e); |
1159 |
} |
1160 |
} |
1161 |
|
1162 |
/** |
1163 |
* get of element of invokeAll(c) throws exception on failed task |
1164 |
*/ |
1165 |
public void testTimedInvokeAll4() throws Exception { |
1166 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1167 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1168 |
l.add(new NPETask()); |
1169 |
List<Future<String>> futures = |
1170 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1171 |
assertEquals(1, futures.size()); |
1172 |
try { |
1173 |
futures.get(0).get(); |
1174 |
shouldThrow(); |
1175 |
} catch (ExecutionException success) { |
1176 |
assertTrue(success.getCause() instanceof NullPointerException); |
1177 |
} finally { |
1178 |
joinPool(e); |
1179 |
} |
1180 |
} |
1181 |
|
1182 |
/** |
1183 |
* timed invokeAll(c) returns results of all completed tasks |
1184 |
*/ |
1185 |
public void testTimedInvokeAll5() throws Exception { |
1186 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1187 |
try { |
1188 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1189 |
l.add(new StringTask()); |
1190 |
l.add(new StringTask()); |
1191 |
List<Future<String>> futures = |
1192 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1193 |
assertEquals(2, futures.size()); |
1194 |
for (Future<String> future : futures) |
1195 |
assertSame(TEST_STRING, future.get()); |
1196 |
} finally { |
1197 |
joinPool(e); |
1198 |
} |
1199 |
} |
1200 |
|
1201 |
/** |
1202 |
* timed invokeAll(c) cancels tasks not completed by timeout |
1203 |
*/ |
1204 |
public void testTimedInvokeAll6() throws Exception { |
1205 |
ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1206 |
try { |
1207 |
for (long timeout = timeoutMillis();;) { |
1208 |
List<Callable<String>> tasks = new ArrayList<>(); |
1209 |
tasks.add(new StringTask("0")); |
1210 |
tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING)); |
1211 |
tasks.add(new StringTask("2")); |
1212 |
long startTime = System.nanoTime(); |
1213 |
List<Future<String>> futures = |
1214 |
e.invokeAll(tasks, timeout, MILLISECONDS); |
1215 |
assertEquals(tasks.size(), futures.size()); |
1216 |
assertTrue(millisElapsedSince(startTime) >= timeout); |
1217 |
for (Future future : futures) |
1218 |
assertTrue(future.isDone()); |
1219 |
assertTrue(futures.get(1).isCancelled()); |
1220 |
try { |
1221 |
assertEquals("0", futures.get(0).get()); |
1222 |
assertEquals("2", futures.get(2).get()); |
1223 |
break; |
1224 |
} catch (CancellationException retryWithLongerTimeout) { |
1225 |
timeout *= 2; |
1226 |
if (timeout >= LONG_DELAY_MS / 2) |
1227 |
fail("expected exactly one task to be cancelled"); |
1228 |
} |
1229 |
} |
1230 |
} finally { |
1231 |
joinPool(e); |
1232 |
} |
1233 |
} |
1234 |
|
1235 |
} |