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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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*/ |
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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.Delayed; |
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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.RejectedExecutionHandler; |
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import java.util.concurrent.RunnableScheduledFuture; |
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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.TimeoutException; |
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import java.util.concurrent.TimeUnit; |
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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 ScheduledExecutorSubclassTest 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(ScheduledExecutorSubclassTest.class); |
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} |
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|
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static class CustomTask<V> implements RunnableScheduledFuture<V> { |
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RunnableScheduledFuture<V> task; |
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volatile boolean ran; |
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CustomTask(RunnableScheduledFuture<V> t) { task = t; } |
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public boolean isPeriodic() { return task.isPeriodic(); } |
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public void run() { |
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ran = true; |
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task.run(); |
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} |
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public long getDelay(TimeUnit unit) { return task.getDelay(unit); } |
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public int compareTo(Delayed t) { |
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return task.compareTo(((CustomTask)t).task); |
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} |
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public boolean cancel(boolean mayInterruptIfRunning) { |
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return task.cancel(mayInterruptIfRunning); |
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} |
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public boolean isCancelled() { return task.isCancelled(); } |
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public boolean isDone() { return task.isDone(); } |
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public V get() throws InterruptedException, ExecutionException { |
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V v = task.get(); |
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assertTrue(ran); |
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return v; |
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} |
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public V get(long time, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException { |
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V v = task.get(time, unit); |
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assertTrue(ran); |
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return v; |
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} |
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} |
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|
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public class CustomExecutor extends ScheduledThreadPoolExecutor { |
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|
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protected <V> RunnableScheduledFuture<V> decorateTask(Runnable r, RunnableScheduledFuture<V> task) { |
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return new CustomTask<V>(task); |
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} |
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|
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protected <V> RunnableScheduledFuture<V> decorateTask(Callable<V> c, RunnableScheduledFuture<V> task) { |
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return new CustomTask<V>(task); |
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} |
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CustomExecutor(int corePoolSize) { super(corePoolSize); } |
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CustomExecutor(int corePoolSize, RejectedExecutionHandler handler) { |
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super(corePoolSize, handler); |
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} |
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|
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CustomExecutor(int corePoolSize, ThreadFactory threadFactory) { |
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super(corePoolSize, threadFactory); |
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} |
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CustomExecutor(int corePoolSize, ThreadFactory threadFactory, |
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RejectedExecutionHandler handler) { |
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super(corePoolSize, threadFactory, handler); |
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} |
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|
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} |
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|
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/** |
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* execute successfully executes a runnable |
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*/ |
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public void testExecute() throws InterruptedException { |
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CustomExecutor p = new CustomExecutor(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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CustomExecutor p = new CustomExecutor(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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CustomExecutor p = new CustomExecutor(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 InterruptedException { |
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CustomExecutor p = new CustomExecutor(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 InterruptedException { |
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CustomExecutor p = new CustomExecutor(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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CustomExecutor p = new CustomExecutor(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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CustomExecutor p = new CustomExecutor(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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CustomExecutor se = new CustomExecutor(1); |
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try { |
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se.execute(null); |
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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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* schedule(null) throws NPE |
282 |
*/ |
283 |
public void testScheduleNull() throws InterruptedException { |
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CustomExecutor se = new CustomExecutor(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(); |
289 |
} 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 |
295 |
*/ |
296 |
public void testSchedule1_RejectedExecutionException() { |
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CustomExecutor se = new CustomExecutor(1); |
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try { |
299 |
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) { |
304 |
} 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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|
310 |
/** |
311 |
* schedule throws RejectedExecutionException if shutdown |
312 |
*/ |
313 |
public void testSchedule2_RejectedExecutionException() { |
314 |
CustomExecutor se = new CustomExecutor(1); |
315 |
try { |
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se.shutdown(); |
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se.schedule(new NoOpCallable(), |
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MEDIUM_DELAY_MS, MILLISECONDS); |
319 |
shouldThrow(); |
320 |
} catch (RejectedExecutionException success) { |
321 |
} catch (SecurityException ok) { |
322 |
} |
323 |
joinPool(se); |
324 |
} |
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|
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/** |
327 |
* schedule callable throws RejectedExecutionException if shutdown |
328 |
*/ |
329 |
public void testSchedule3_RejectedExecutionException() { |
330 |
CustomExecutor se = new CustomExecutor(1); |
331 |
try { |
332 |
se.shutdown(); |
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se.schedule(new NoOpCallable(), |
334 |
MEDIUM_DELAY_MS, MILLISECONDS); |
335 |
shouldThrow(); |
336 |
} catch (RejectedExecutionException success) { |
337 |
} catch (SecurityException ok) { |
338 |
} |
339 |
joinPool(se); |
340 |
} |
341 |
|
342 |
/** |
343 |
* scheduleAtFixedRate throws RejectedExecutionException if shutdown |
344 |
*/ |
345 |
public void testScheduleAtFixedRate1_RejectedExecutionException() { |
346 |
CustomExecutor se = new CustomExecutor(1); |
347 |
try { |
348 |
se.shutdown(); |
349 |
se.scheduleAtFixedRate(new NoOpRunnable(), |
350 |
MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS); |
351 |
shouldThrow(); |
352 |
} catch (RejectedExecutionException success) { |
353 |
} catch (SecurityException ok) { |
354 |
} |
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joinPool(se); |
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} |
357 |
|
358 |
/** |
359 |
* scheduleWithFixedDelay throws RejectedExecutionException if shutdown |
360 |
*/ |
361 |
public void testScheduleWithFixedDelay1_RejectedExecutionException() { |
362 |
CustomExecutor se = new CustomExecutor(1); |
363 |
try { |
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se.shutdown(); |
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se.scheduleWithFixedDelay(new NoOpRunnable(), |
366 |
MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, MILLISECONDS); |
367 |
shouldThrow(); |
368 |
} catch (RejectedExecutionException success) { |
369 |
} catch (SecurityException ok) { |
370 |
} |
371 |
joinPool(se); |
372 |
} |
373 |
|
374 |
/** |
375 |
* getActiveCount increases but doesn't overestimate, when a |
376 |
* thread becomes active |
377 |
*/ |
378 |
public void testGetActiveCount() throws InterruptedException { |
379 |
final ThreadPoolExecutor p = new CustomExecutor(2); |
380 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
381 |
final CountDownLatch done = new CountDownLatch(1); |
382 |
try { |
383 |
assertEquals(0, p.getActiveCount()); |
384 |
p.execute(new CheckedRunnable() { |
385 |
public void realRun() throws InterruptedException { |
386 |
threadStarted.countDown(); |
387 |
assertEquals(1, p.getActiveCount()); |
388 |
done.await(); |
389 |
}}); |
390 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
391 |
assertEquals(1, p.getActiveCount()); |
392 |
} finally { |
393 |
done.countDown(); |
394 |
joinPool(p); |
395 |
} |
396 |
} |
397 |
|
398 |
/** |
399 |
* getCompletedTaskCount increases, but doesn't overestimate, |
400 |
* when tasks complete |
401 |
*/ |
402 |
public void testGetCompletedTaskCount() throws InterruptedException { |
403 |
final ThreadPoolExecutor p = new CustomExecutor(2); |
404 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
405 |
final CountDownLatch threadProceed = new CountDownLatch(1); |
406 |
final CountDownLatch threadDone = new CountDownLatch(1); |
407 |
try { |
408 |
assertEquals(0, p.getCompletedTaskCount()); |
409 |
p.execute(new CheckedRunnable() { |
410 |
public void realRun() throws InterruptedException { |
411 |
threadStarted.countDown(); |
412 |
assertEquals(0, p.getCompletedTaskCount()); |
413 |
threadProceed.await(); |
414 |
threadDone.countDown(); |
415 |
}}); |
416 |
await(threadStarted); |
417 |
assertEquals(0, p.getCompletedTaskCount()); |
418 |
threadProceed.countDown(); |
419 |
threadDone.await(); |
420 |
long startTime = System.nanoTime(); |
421 |
while (p.getCompletedTaskCount() != 1) { |
422 |
if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
423 |
fail("timed out"); |
424 |
Thread.yield(); |
425 |
} |
426 |
} finally { |
427 |
joinPool(p); |
428 |
} |
429 |
} |
430 |
|
431 |
/** |
432 |
* getCorePoolSize returns size given in constructor if not otherwise set |
433 |
*/ |
434 |
public void testGetCorePoolSize() { |
435 |
CustomExecutor p = new CustomExecutor(1); |
436 |
assertEquals(1, p.getCorePoolSize()); |
437 |
joinPool(p); |
438 |
} |
439 |
|
440 |
/** |
441 |
* getLargestPoolSize increases, but doesn't overestimate, when |
442 |
* multiple threads active |
443 |
*/ |
444 |
public void testGetLargestPoolSize() throws InterruptedException { |
445 |
final int THREADS = 3; |
446 |
final ThreadPoolExecutor p = new CustomExecutor(THREADS); |
447 |
final CountDownLatch threadsStarted = new CountDownLatch(THREADS); |
448 |
final CountDownLatch done = new CountDownLatch(1); |
449 |
try { |
450 |
assertEquals(0, p.getLargestPoolSize()); |
451 |
for (int i = 0; i < THREADS; i++) |
452 |
p.execute(new CheckedRunnable() { |
453 |
public void realRun() throws InterruptedException { |
454 |
threadsStarted.countDown(); |
455 |
done.await(); |
456 |
assertEquals(THREADS, p.getLargestPoolSize()); |
457 |
}}); |
458 |
assertTrue(threadsStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
459 |
assertEquals(THREADS, p.getLargestPoolSize()); |
460 |
} finally { |
461 |
done.countDown(); |
462 |
joinPool(p); |
463 |
assertEquals(THREADS, p.getLargestPoolSize()); |
464 |
} |
465 |
} |
466 |
|
467 |
/** |
468 |
* getPoolSize increases, but doesn't overestimate, when threads |
469 |
* become active |
470 |
*/ |
471 |
public void testGetPoolSize() throws InterruptedException { |
472 |
final ThreadPoolExecutor p = new CustomExecutor(1); |
473 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
474 |
final CountDownLatch done = new CountDownLatch(1); |
475 |
try { |
476 |
assertEquals(0, p.getPoolSize()); |
477 |
p.execute(new CheckedRunnable() { |
478 |
public void realRun() throws InterruptedException { |
479 |
threadStarted.countDown(); |
480 |
assertEquals(1, p.getPoolSize()); |
481 |
done.await(); |
482 |
}}); |
483 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
484 |
assertEquals(1, p.getPoolSize()); |
485 |
} finally { |
486 |
done.countDown(); |
487 |
joinPool(p); |
488 |
} |
489 |
} |
490 |
|
491 |
/** |
492 |
* getTaskCount increases, but doesn't overestimate, when tasks |
493 |
* submitted |
494 |
*/ |
495 |
public void testGetTaskCount() throws InterruptedException { |
496 |
final ThreadPoolExecutor p = new CustomExecutor(1); |
497 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
498 |
final CountDownLatch done = new CountDownLatch(1); |
499 |
final int TASKS = 5; |
500 |
try { |
501 |
assertEquals(0, p.getTaskCount()); |
502 |
for (int i = 0; i < TASKS; i++) |
503 |
p.execute(new CheckedRunnable() { |
504 |
public void realRun() throws InterruptedException { |
505 |
threadStarted.countDown(); |
506 |
done.await(); |
507 |
}}); |
508 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
509 |
assertEquals(TASKS, p.getTaskCount()); |
510 |
} finally { |
511 |
done.countDown(); |
512 |
joinPool(p); |
513 |
} |
514 |
} |
515 |
|
516 |
/** |
517 |
* getThreadFactory returns factory in constructor if not set |
518 |
*/ |
519 |
public void testGetThreadFactory() { |
520 |
ThreadFactory tf = new SimpleThreadFactory(); |
521 |
CustomExecutor p = new CustomExecutor(1, tf); |
522 |
assertSame(tf, p.getThreadFactory()); |
523 |
joinPool(p); |
524 |
} |
525 |
|
526 |
/** |
527 |
* setThreadFactory sets the thread factory returned by getThreadFactory |
528 |
*/ |
529 |
public void testSetThreadFactory() { |
530 |
ThreadFactory tf = new SimpleThreadFactory(); |
531 |
CustomExecutor p = new CustomExecutor(1); |
532 |
p.setThreadFactory(tf); |
533 |
assertSame(tf, p.getThreadFactory()); |
534 |
joinPool(p); |
535 |
} |
536 |
|
537 |
/** |
538 |
* setThreadFactory(null) throws NPE |
539 |
*/ |
540 |
public void testSetThreadFactoryNull() { |
541 |
CustomExecutor p = new CustomExecutor(1); |
542 |
try { |
543 |
p.setThreadFactory(null); |
544 |
shouldThrow(); |
545 |
} catch (NullPointerException success) { |
546 |
} finally { |
547 |
joinPool(p); |
548 |
} |
549 |
} |
550 |
|
551 |
/** |
552 |
* isShutdown is false before shutdown, true after |
553 |
*/ |
554 |
public void testIsShutdown() { |
555 |
CustomExecutor p = new CustomExecutor(1); |
556 |
try { |
557 |
assertFalse(p.isShutdown()); |
558 |
} |
559 |
finally { |
560 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
561 |
} |
562 |
assertTrue(p.isShutdown()); |
563 |
} |
564 |
|
565 |
/** |
566 |
* isTerminated is false before termination, true after |
567 |
*/ |
568 |
public void testIsTerminated() throws InterruptedException { |
569 |
final ThreadPoolExecutor p = new CustomExecutor(1); |
570 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
571 |
final CountDownLatch done = new CountDownLatch(1); |
572 |
assertFalse(p.isTerminated()); |
573 |
try { |
574 |
p.execute(new CheckedRunnable() { |
575 |
public void realRun() throws InterruptedException { |
576 |
assertFalse(p.isTerminated()); |
577 |
threadStarted.countDown(); |
578 |
done.await(); |
579 |
}}); |
580 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
581 |
assertFalse(p.isTerminating()); |
582 |
done.countDown(); |
583 |
} finally { |
584 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
585 |
} |
586 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
587 |
assertTrue(p.isTerminated()); |
588 |
} |
589 |
|
590 |
/** |
591 |
* isTerminating is not true when running or when terminated |
592 |
*/ |
593 |
public void testIsTerminating() throws InterruptedException { |
594 |
final ThreadPoolExecutor p = new CustomExecutor(1); |
595 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
596 |
final CountDownLatch done = new CountDownLatch(1); |
597 |
try { |
598 |
assertFalse(p.isTerminating()); |
599 |
p.execute(new CheckedRunnable() { |
600 |
public void realRun() throws InterruptedException { |
601 |
assertFalse(p.isTerminating()); |
602 |
threadStarted.countDown(); |
603 |
done.await(); |
604 |
}}); |
605 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
606 |
assertFalse(p.isTerminating()); |
607 |
done.countDown(); |
608 |
} finally { |
609 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
610 |
} |
611 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
612 |
assertTrue(p.isTerminated()); |
613 |
assertFalse(p.isTerminating()); |
614 |
} |
615 |
|
616 |
/** |
617 |
* getQueue returns the work queue, which contains queued tasks |
618 |
*/ |
619 |
public void testGetQueue() throws InterruptedException { |
620 |
ScheduledThreadPoolExecutor p = new CustomExecutor(1); |
621 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
622 |
final CountDownLatch done = new CountDownLatch(1); |
623 |
try { |
624 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
625 |
for (int i = 0; i < tasks.length; i++) { |
626 |
Runnable r = new CheckedRunnable() { |
627 |
public void realRun() throws InterruptedException { |
628 |
threadStarted.countDown(); |
629 |
done.await(); |
630 |
}}; |
631 |
tasks[i] = p.schedule(r, 1, MILLISECONDS); |
632 |
} |
633 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
634 |
BlockingQueue<Runnable> q = p.getQueue(); |
635 |
assertTrue(q.contains(tasks[tasks.length - 1])); |
636 |
assertFalse(q.contains(tasks[0])); |
637 |
} finally { |
638 |
done.countDown(); |
639 |
joinPool(p); |
640 |
} |
641 |
} |
642 |
|
643 |
/** |
644 |
* remove(task) removes queued task, and fails to remove active task |
645 |
*/ |
646 |
public void testRemove() throws InterruptedException { |
647 |
final ScheduledThreadPoolExecutor p = new CustomExecutor(1); |
648 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
649 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
650 |
final CountDownLatch done = new CountDownLatch(1); |
651 |
try { |
652 |
for (int i = 0; i < tasks.length; i++) { |
653 |
Runnable r = new CheckedRunnable() { |
654 |
public void realRun() throws InterruptedException { |
655 |
threadStarted.countDown(); |
656 |
done.await(); |
657 |
}}; |
658 |
tasks[i] = p.schedule(r, 1, MILLISECONDS); |
659 |
} |
660 |
assertTrue(threadStarted.await(SMALL_DELAY_MS, MILLISECONDS)); |
661 |
BlockingQueue<Runnable> q = p.getQueue(); |
662 |
assertFalse(p.remove((Runnable)tasks[0])); |
663 |
assertTrue(q.contains((Runnable)tasks[4])); |
664 |
assertTrue(q.contains((Runnable)tasks[3])); |
665 |
assertTrue(p.remove((Runnable)tasks[4])); |
666 |
assertFalse(p.remove((Runnable)tasks[4])); |
667 |
assertFalse(q.contains((Runnable)tasks[4])); |
668 |
assertTrue(q.contains((Runnable)tasks[3])); |
669 |
assertTrue(p.remove((Runnable)tasks[3])); |
670 |
assertFalse(q.contains((Runnable)tasks[3])); |
671 |
} finally { |
672 |
done.countDown(); |
673 |
joinPool(p); |
674 |
} |
675 |
} |
676 |
|
677 |
/** |
678 |
* purge removes cancelled tasks from the queue |
679 |
*/ |
680 |
public void testPurge() throws InterruptedException { |
681 |
CustomExecutor p = new CustomExecutor(1); |
682 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
683 |
for (int i = 0; i < tasks.length; i++) |
684 |
tasks[i] = p.schedule(new SmallPossiblyInterruptedRunnable(), |
685 |
LONG_DELAY_MS, MILLISECONDS); |
686 |
try { |
687 |
int max = tasks.length; |
688 |
if (tasks[4].cancel(true)) --max; |
689 |
if (tasks[3].cancel(true)) --max; |
690 |
// There must eventually be an interference-free point at |
691 |
// which purge will not fail. (At worst, when queue is empty.) |
692 |
long startTime = System.nanoTime(); |
693 |
do { |
694 |
p.purge(); |
695 |
long count = p.getTaskCount(); |
696 |
if (count == max) |
697 |
return; |
698 |
} while (millisElapsedSince(startTime) < MEDIUM_DELAY_MS); |
699 |
fail("Purge failed to remove cancelled tasks"); |
700 |
} finally { |
701 |
for (ScheduledFuture task : tasks) |
702 |
task.cancel(true); |
703 |
joinPool(p); |
704 |
} |
705 |
} |
706 |
|
707 |
/** |
708 |
* shutdownNow returns a list containing tasks that were not run |
709 |
*/ |
710 |
public void testShutdownNow() { |
711 |
CustomExecutor p = new CustomExecutor(1); |
712 |
for (int i = 0; i < 5; i++) |
713 |
p.schedule(new SmallPossiblyInterruptedRunnable(), |
714 |
LONG_DELAY_MS, MILLISECONDS); |
715 |
try { |
716 |
List<Runnable> l = p.shutdownNow(); |
717 |
assertTrue(p.isShutdown()); |
718 |
assertEquals(5, l.size()); |
719 |
} catch (SecurityException ok) { |
720 |
// Allowed in case test doesn't have privs |
721 |
} finally { |
722 |
joinPool(p); |
723 |
} |
724 |
} |
725 |
|
726 |
/** |
727 |
* In default setting, shutdown cancels periodic but not delayed |
728 |
* tasks at shutdown |
729 |
*/ |
730 |
public void testShutdown1() throws InterruptedException { |
731 |
CustomExecutor p = new CustomExecutor(1); |
732 |
assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
733 |
assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
734 |
|
735 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
736 |
for (int i = 0; i < tasks.length; i++) |
737 |
tasks[i] = p.schedule(new NoOpRunnable(), |
738 |
SHORT_DELAY_MS, MILLISECONDS); |
739 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
740 |
BlockingQueue<Runnable> q = p.getQueue(); |
741 |
for (ScheduledFuture task : tasks) { |
742 |
assertFalse(task.isDone()); |
743 |
assertFalse(task.isCancelled()); |
744 |
assertTrue(q.contains(task)); |
745 |
} |
746 |
assertTrue(p.isShutdown()); |
747 |
assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS)); |
748 |
assertTrue(p.isTerminated()); |
749 |
for (ScheduledFuture task : tasks) { |
750 |
assertTrue(task.isDone()); |
751 |
assertFalse(task.isCancelled()); |
752 |
} |
753 |
} |
754 |
|
755 |
/** |
756 |
* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false, |
757 |
* delayed tasks are cancelled at shutdown |
758 |
*/ |
759 |
public void testShutdown2() throws InterruptedException { |
760 |
CustomExecutor p = new CustomExecutor(1); |
761 |
p.setExecuteExistingDelayedTasksAfterShutdownPolicy(false); |
762 |
assertFalse(p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
763 |
assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
764 |
ScheduledFuture[] tasks = new ScheduledFuture[5]; |
765 |
for (int i = 0; i < tasks.length; i++) |
766 |
tasks[i] = p.schedule(new NoOpRunnable(), |
767 |
SHORT_DELAY_MS, MILLISECONDS); |
768 |
BlockingQueue q = p.getQueue(); |
769 |
assertEquals(tasks.length, q.size()); |
770 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
771 |
assertTrue(p.isShutdown()); |
772 |
assertTrue(q.isEmpty()); |
773 |
assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS)); |
774 |
assertTrue(p.isTerminated()); |
775 |
for (ScheduledFuture task : tasks) { |
776 |
assertTrue(task.isDone()); |
777 |
assertTrue(task.isCancelled()); |
778 |
} |
779 |
} |
780 |
|
781 |
/** |
782 |
* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false, |
783 |
* periodic tasks are cancelled at shutdown |
784 |
*/ |
785 |
public void testShutdown3() throws InterruptedException { |
786 |
CustomExecutor p = new CustomExecutor(1); |
787 |
assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
788 |
assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
789 |
p.setContinueExistingPeriodicTasksAfterShutdownPolicy(false); |
790 |
assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
791 |
assertFalse(p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
792 |
long initialDelay = LONG_DELAY_MS; |
793 |
ScheduledFuture task = |
794 |
p.scheduleAtFixedRate(new NoOpRunnable(), initialDelay, |
795 |
5, MILLISECONDS); |
796 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
797 |
assertTrue(p.isShutdown()); |
798 |
assertTrue(p.getQueue().isEmpty()); |
799 |
assertTrue(task.isDone()); |
800 |
assertTrue(task.isCancelled()); |
801 |
joinPool(p); |
802 |
} |
803 |
|
804 |
/** |
805 |
* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true, |
806 |
* periodic tasks are not cancelled at shutdown |
807 |
*/ |
808 |
public void testShutdown4() throws InterruptedException { |
809 |
CustomExecutor p = new CustomExecutor(1); |
810 |
final CountDownLatch counter = new CountDownLatch(2); |
811 |
try { |
812 |
p.setContinueExistingPeriodicTasksAfterShutdownPolicy(true); |
813 |
assertTrue(p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
814 |
assertTrue(p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
815 |
final Runnable r = new CheckedRunnable() { |
816 |
public void realRun() { |
817 |
counter.countDown(); |
818 |
}}; |
819 |
ScheduledFuture task = |
820 |
p.scheduleAtFixedRate(r, 1, 1, MILLISECONDS); |
821 |
assertFalse(task.isDone()); |
822 |
assertFalse(task.isCancelled()); |
823 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
824 |
assertFalse(task.isCancelled()); |
825 |
assertFalse(p.isTerminated()); |
826 |
assertTrue(p.isShutdown()); |
827 |
assertTrue(counter.await(SMALL_DELAY_MS, MILLISECONDS)); |
828 |
assertFalse(task.isCancelled()); |
829 |
assertTrue(task.cancel(false)); |
830 |
assertTrue(task.isDone()); |
831 |
assertTrue(task.isCancelled()); |
832 |
assertTrue(p.awaitTermination(SMALL_DELAY_MS, MILLISECONDS)); |
833 |
assertTrue(p.isTerminated()); |
834 |
} |
835 |
finally { |
836 |
joinPool(p); |
837 |
} |
838 |
} |
839 |
|
840 |
/** |
841 |
* completed submit of callable returns result |
842 |
*/ |
843 |
public void testSubmitCallable() throws Exception { |
844 |
ExecutorService e = new CustomExecutor(2); |
845 |
try { |
846 |
Future<String> future = e.submit(new StringTask()); |
847 |
String result = future.get(); |
848 |
assertSame(TEST_STRING, result); |
849 |
} finally { |
850 |
joinPool(e); |
851 |
} |
852 |
} |
853 |
|
854 |
/** |
855 |
* completed submit of runnable returns successfully |
856 |
*/ |
857 |
public void testSubmitRunnable() throws Exception { |
858 |
ExecutorService e = new CustomExecutor(2); |
859 |
try { |
860 |
Future<?> future = e.submit(new NoOpRunnable()); |
861 |
future.get(); |
862 |
assertTrue(future.isDone()); |
863 |
} finally { |
864 |
joinPool(e); |
865 |
} |
866 |
} |
867 |
|
868 |
/** |
869 |
* completed submit of (runnable, result) returns result |
870 |
*/ |
871 |
public void testSubmitRunnable2() throws Exception { |
872 |
ExecutorService e = new CustomExecutor(2); |
873 |
try { |
874 |
Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING); |
875 |
String result = future.get(); |
876 |
assertSame(TEST_STRING, result); |
877 |
} finally { |
878 |
joinPool(e); |
879 |
} |
880 |
} |
881 |
|
882 |
/** |
883 |
* invokeAny(null) throws NPE |
884 |
*/ |
885 |
public void testInvokeAny1() throws Exception { |
886 |
ExecutorService e = new CustomExecutor(2); |
887 |
try { |
888 |
e.invokeAny(null); |
889 |
shouldThrow(); |
890 |
} catch (NullPointerException success) { |
891 |
} finally { |
892 |
joinPool(e); |
893 |
} |
894 |
} |
895 |
|
896 |
/** |
897 |
* invokeAny(empty collection) throws IAE |
898 |
*/ |
899 |
public void testInvokeAny2() throws Exception { |
900 |
ExecutorService e = new CustomExecutor(2); |
901 |
try { |
902 |
e.invokeAny(new ArrayList<Callable<String>>()); |
903 |
shouldThrow(); |
904 |
} catch (IllegalArgumentException success) { |
905 |
} finally { |
906 |
joinPool(e); |
907 |
} |
908 |
} |
909 |
|
910 |
/** |
911 |
* invokeAny(c) throws NPE if c has null elements |
912 |
*/ |
913 |
public void testInvokeAny3() throws Exception { |
914 |
CountDownLatch latch = new CountDownLatch(1); |
915 |
ExecutorService e = new CustomExecutor(2); |
916 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
917 |
l.add(latchAwaitingStringTask(latch)); |
918 |
l.add(null); |
919 |
try { |
920 |
e.invokeAny(l); |
921 |
shouldThrow(); |
922 |
} catch (NullPointerException success) { |
923 |
} finally { |
924 |
latch.countDown(); |
925 |
joinPool(e); |
926 |
} |
927 |
} |
928 |
|
929 |
/** |
930 |
* invokeAny(c) throws ExecutionException if no task completes |
931 |
*/ |
932 |
public void testInvokeAny4() throws Exception { |
933 |
ExecutorService e = new CustomExecutor(2); |
934 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
935 |
l.add(new NPETask()); |
936 |
try { |
937 |
e.invokeAny(l); |
938 |
shouldThrow(); |
939 |
} catch (ExecutionException success) { |
940 |
assertTrue(success.getCause() instanceof NullPointerException); |
941 |
} finally { |
942 |
joinPool(e); |
943 |
} |
944 |
} |
945 |
|
946 |
/** |
947 |
* invokeAny(c) returns result of some task |
948 |
*/ |
949 |
public void testInvokeAny5() throws Exception { |
950 |
ExecutorService e = new CustomExecutor(2); |
951 |
try { |
952 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
953 |
l.add(new StringTask()); |
954 |
l.add(new StringTask()); |
955 |
String result = e.invokeAny(l); |
956 |
assertSame(TEST_STRING, result); |
957 |
} finally { |
958 |
joinPool(e); |
959 |
} |
960 |
} |
961 |
|
962 |
/** |
963 |
* invokeAll(null) throws NPE |
964 |
*/ |
965 |
public void testInvokeAll1() throws Exception { |
966 |
ExecutorService e = new CustomExecutor(2); |
967 |
try { |
968 |
e.invokeAll(null); |
969 |
shouldThrow(); |
970 |
} catch (NullPointerException success) { |
971 |
} finally { |
972 |
joinPool(e); |
973 |
} |
974 |
} |
975 |
|
976 |
/** |
977 |
* invokeAll(empty collection) returns empty collection |
978 |
*/ |
979 |
public void testInvokeAll2() throws Exception { |
980 |
ExecutorService e = new CustomExecutor(2); |
981 |
try { |
982 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>()); |
983 |
assertTrue(r.isEmpty()); |
984 |
} finally { |
985 |
joinPool(e); |
986 |
} |
987 |
} |
988 |
|
989 |
/** |
990 |
* invokeAll(c) throws NPE if c has null elements |
991 |
*/ |
992 |
public void testInvokeAll3() throws Exception { |
993 |
ExecutorService e = new CustomExecutor(2); |
994 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
995 |
l.add(new StringTask()); |
996 |
l.add(null); |
997 |
try { |
998 |
e.invokeAll(l); |
999 |
shouldThrow(); |
1000 |
} catch (NullPointerException success) { |
1001 |
} finally { |
1002 |
joinPool(e); |
1003 |
} |
1004 |
} |
1005 |
|
1006 |
/** |
1007 |
* get of invokeAll(c) throws exception on failed task |
1008 |
*/ |
1009 |
public void testInvokeAll4() throws Exception { |
1010 |
ExecutorService e = new CustomExecutor(2); |
1011 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1012 |
l.add(new NPETask()); |
1013 |
List<Future<String>> futures = e.invokeAll(l); |
1014 |
assertEquals(1, futures.size()); |
1015 |
try { |
1016 |
futures.get(0).get(); |
1017 |
shouldThrow(); |
1018 |
} catch (ExecutionException success) { |
1019 |
assertTrue(success.getCause() instanceof NullPointerException); |
1020 |
} finally { |
1021 |
joinPool(e); |
1022 |
} |
1023 |
} |
1024 |
|
1025 |
/** |
1026 |
* invokeAll(c) returns results of all completed tasks |
1027 |
*/ |
1028 |
public void testInvokeAll5() throws Exception { |
1029 |
ExecutorService e = new CustomExecutor(2); |
1030 |
try { |
1031 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1032 |
l.add(new StringTask()); |
1033 |
l.add(new StringTask()); |
1034 |
List<Future<String>> futures = e.invokeAll(l); |
1035 |
assertEquals(2, futures.size()); |
1036 |
for (Future<String> future : futures) |
1037 |
assertSame(TEST_STRING, future.get()); |
1038 |
} finally { |
1039 |
joinPool(e); |
1040 |
} |
1041 |
} |
1042 |
|
1043 |
/** |
1044 |
* timed invokeAny(null) throws NPE |
1045 |
*/ |
1046 |
public void testTimedInvokeAny1() throws Exception { |
1047 |
ExecutorService e = new CustomExecutor(2); |
1048 |
try { |
1049 |
e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1050 |
shouldThrow(); |
1051 |
} catch (NullPointerException success) { |
1052 |
} finally { |
1053 |
joinPool(e); |
1054 |
} |
1055 |
} |
1056 |
|
1057 |
/** |
1058 |
* timed invokeAny(,,null) throws NPE |
1059 |
*/ |
1060 |
public void testTimedInvokeAnyNullTimeUnit() throws Exception { |
1061 |
ExecutorService e = new CustomExecutor(2); |
1062 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1063 |
l.add(new StringTask()); |
1064 |
try { |
1065 |
e.invokeAny(l, MEDIUM_DELAY_MS, null); |
1066 |
shouldThrow(); |
1067 |
} catch (NullPointerException success) { |
1068 |
} finally { |
1069 |
joinPool(e); |
1070 |
} |
1071 |
} |
1072 |
|
1073 |
/** |
1074 |
* timed invokeAny(empty collection) throws IAE |
1075 |
*/ |
1076 |
public void testTimedInvokeAny2() throws Exception { |
1077 |
ExecutorService e = new CustomExecutor(2); |
1078 |
try { |
1079 |
e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS); |
1080 |
shouldThrow(); |
1081 |
} catch (IllegalArgumentException success) { |
1082 |
} finally { |
1083 |
joinPool(e); |
1084 |
} |
1085 |
} |
1086 |
|
1087 |
/** |
1088 |
* timed invokeAny(c) throws NPE if c has null elements |
1089 |
*/ |
1090 |
public void testTimedInvokeAny3() throws Exception { |
1091 |
CountDownLatch latch = new CountDownLatch(1); |
1092 |
ExecutorService e = new CustomExecutor(2); |
1093 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1094 |
l.add(latchAwaitingStringTask(latch)); |
1095 |
l.add(null); |
1096 |
try { |
1097 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1098 |
shouldThrow(); |
1099 |
} catch (NullPointerException success) { |
1100 |
} finally { |
1101 |
latch.countDown(); |
1102 |
joinPool(e); |
1103 |
} |
1104 |
} |
1105 |
|
1106 |
/** |
1107 |
* timed invokeAny(c) throws ExecutionException if no task completes |
1108 |
*/ |
1109 |
public void testTimedInvokeAny4() throws Exception { |
1110 |
ExecutorService e = new CustomExecutor(2); |
1111 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1112 |
l.add(new NPETask()); |
1113 |
try { |
1114 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1115 |
shouldThrow(); |
1116 |
} catch (ExecutionException success) { |
1117 |
assertTrue(success.getCause() instanceof NullPointerException); |
1118 |
} finally { |
1119 |
joinPool(e); |
1120 |
} |
1121 |
} |
1122 |
|
1123 |
/** |
1124 |
* timed invokeAny(c) returns result of some task |
1125 |
*/ |
1126 |
public void testTimedInvokeAny5() throws Exception { |
1127 |
ExecutorService e = new CustomExecutor(2); |
1128 |
try { |
1129 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1130 |
l.add(new StringTask()); |
1131 |
l.add(new StringTask()); |
1132 |
String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1133 |
assertSame(TEST_STRING, result); |
1134 |
} finally { |
1135 |
joinPool(e); |
1136 |
} |
1137 |
} |
1138 |
|
1139 |
/** |
1140 |
* timed invokeAll(null) throws NPE |
1141 |
*/ |
1142 |
public void testTimedInvokeAll1() throws Exception { |
1143 |
ExecutorService e = new CustomExecutor(2); |
1144 |
try { |
1145 |
e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1146 |
shouldThrow(); |
1147 |
} catch (NullPointerException success) { |
1148 |
} finally { |
1149 |
joinPool(e); |
1150 |
} |
1151 |
} |
1152 |
|
1153 |
/** |
1154 |
* timed invokeAll(,,null) throws NPE |
1155 |
*/ |
1156 |
public void testTimedInvokeAllNullTimeUnit() throws Exception { |
1157 |
ExecutorService e = new CustomExecutor(2); |
1158 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1159 |
l.add(new StringTask()); |
1160 |
try { |
1161 |
e.invokeAll(l, MEDIUM_DELAY_MS, null); |
1162 |
shouldThrow(); |
1163 |
} catch (NullPointerException success) { |
1164 |
} finally { |
1165 |
joinPool(e); |
1166 |
} |
1167 |
} |
1168 |
|
1169 |
/** |
1170 |
* timed invokeAll(empty collection) returns empty collection |
1171 |
*/ |
1172 |
public void testTimedInvokeAll2() throws Exception { |
1173 |
ExecutorService e = new CustomExecutor(2); |
1174 |
try { |
1175 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS); |
1176 |
assertTrue(r.isEmpty()); |
1177 |
} finally { |
1178 |
joinPool(e); |
1179 |
} |
1180 |
} |
1181 |
|
1182 |
/** |
1183 |
* timed invokeAll(c) throws NPE if c has null elements |
1184 |
*/ |
1185 |
public void testTimedInvokeAll3() throws Exception { |
1186 |
ExecutorService e = new CustomExecutor(2); |
1187 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1188 |
l.add(new StringTask()); |
1189 |
l.add(null); |
1190 |
try { |
1191 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1192 |
shouldThrow(); |
1193 |
} catch (NullPointerException success) { |
1194 |
} finally { |
1195 |
joinPool(e); |
1196 |
} |
1197 |
} |
1198 |
|
1199 |
/** |
1200 |
* get of element of invokeAll(c) throws exception on failed task |
1201 |
*/ |
1202 |
public void testTimedInvokeAll4() throws Exception { |
1203 |
ExecutorService e = new CustomExecutor(2); |
1204 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1205 |
l.add(new NPETask()); |
1206 |
List<Future<String>> futures = |
1207 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1208 |
assertEquals(1, futures.size()); |
1209 |
try { |
1210 |
futures.get(0).get(); |
1211 |
shouldThrow(); |
1212 |
} catch (ExecutionException success) { |
1213 |
assertTrue(success.getCause() instanceof NullPointerException); |
1214 |
} finally { |
1215 |
joinPool(e); |
1216 |
} |
1217 |
} |
1218 |
|
1219 |
/** |
1220 |
* timed invokeAll(c) returns results of all completed tasks |
1221 |
*/ |
1222 |
public void testTimedInvokeAll5() throws Exception { |
1223 |
ExecutorService e = new CustomExecutor(2); |
1224 |
try { |
1225 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1226 |
l.add(new StringTask()); |
1227 |
l.add(new StringTask()); |
1228 |
List<Future<String>> futures = |
1229 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1230 |
assertEquals(2, futures.size()); |
1231 |
for (Future<String> future : futures) |
1232 |
assertSame(TEST_STRING, future.get()); |
1233 |
} finally { |
1234 |
joinPool(e); |
1235 |
} |
1236 |
} |
1237 |
|
1238 |
/** |
1239 |
* timed invokeAll(c) cancels tasks not completed by timeout |
1240 |
*/ |
1241 |
public void testTimedInvokeAll6() throws Exception { |
1242 |
ExecutorService e = new CustomExecutor(2); |
1243 |
try { |
1244 |
for (long timeout = timeoutMillis();;) { |
1245 |
List<Callable<String>> tasks = new ArrayList<>(); |
1246 |
tasks.add(new StringTask("0")); |
1247 |
tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING)); |
1248 |
tasks.add(new StringTask("2")); |
1249 |
long startTime = System.nanoTime(); |
1250 |
List<Future<String>> futures = |
1251 |
e.invokeAll(tasks, timeout, MILLISECONDS); |
1252 |
assertEquals(tasks.size(), futures.size()); |
1253 |
assertTrue(millisElapsedSince(startTime) >= timeout); |
1254 |
for (Future future : futures) |
1255 |
assertTrue(future.isDone()); |
1256 |
assertTrue(futures.get(1).isCancelled()); |
1257 |
try { |
1258 |
assertEquals("0", futures.get(0).get()); |
1259 |
assertEquals("2", futures.get(2).get()); |
1260 |
break; |
1261 |
} catch (CancellationException retryWithLongerTimeout) { |
1262 |
timeout *= 2; |
1263 |
if (timeout >= LONG_DELAY_MS / 2) |
1264 |
fail("expected exactly one task to be cancelled"); |
1265 |
} |
1266 |
} |
1267 |
} finally { |
1268 |
joinPool(e); |
1269 |
} |
1270 |
} |
1271 |
|
1272 |
} |