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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.List; |
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import java.util.concurrent.ArrayBlockingQueue; |
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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.FutureTask; |
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import java.util.concurrent.LinkedBlockingQueue; |
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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.RunnableFuture; |
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import java.util.concurrent.SynchronousQueue; |
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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; |
33 |
import java.util.concurrent.atomic.AtomicInteger; |
34 |
import java.util.concurrent.locks.Condition; |
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import java.util.concurrent.locks.ReentrantLock; |
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|
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import junit.framework.Test; |
38 |
import junit.framework.TestSuite; |
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|
40 |
public class ThreadPoolExecutorSubclassTest extends JSR166TestCase { |
41 |
public static void main(String[] args) { |
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main(suite(), args); |
43 |
} |
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public static Test suite() { |
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return new TestSuite(ThreadPoolExecutorSubclassTest.class); |
46 |
} |
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|
48 |
static class CustomTask<V> implements RunnableFuture<V> { |
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final Callable<V> callable; |
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final ReentrantLock lock = new ReentrantLock(); |
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final Condition cond = lock.newCondition(); |
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boolean done; |
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boolean cancelled; |
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V result; |
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Thread thread; |
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Exception exception; |
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CustomTask(Callable<V> c) { |
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if (c == null) throw new NullPointerException(); |
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callable = c; |
60 |
} |
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CustomTask(final Runnable r, final V res) { |
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if (r == null) throw new NullPointerException(); |
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callable = new Callable<V>() { |
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public V call() throws Exception { r.run(); return res; }}; |
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} |
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public boolean isDone() { |
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lock.lock(); try { return done; } finally { lock.unlock() ; } |
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} |
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public boolean isCancelled() { |
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lock.lock(); try { return cancelled; } finally { lock.unlock() ; } |
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} |
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public boolean cancel(boolean mayInterrupt) { |
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lock.lock(); |
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try { |
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if (!done) { |
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cancelled = true; |
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done = true; |
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if (mayInterrupt && thread != null) |
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thread.interrupt(); |
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return true; |
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} |
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return false; |
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} |
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finally { lock.unlock() ; } |
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} |
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public void run() { |
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lock.lock(); |
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try { |
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if (done) |
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return; |
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thread = Thread.currentThread(); |
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} |
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finally { lock.unlock() ; } |
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V v = null; |
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Exception e = null; |
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try { |
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v = callable.call(); |
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} |
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catch (Exception ex) { |
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e = ex; |
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} |
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lock.lock(); |
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try { |
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if (!done) { |
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result = v; |
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exception = e; |
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done = true; |
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thread = null; |
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cond.signalAll(); |
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} |
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} |
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finally { lock.unlock(); } |
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} |
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public V get() throws InterruptedException, ExecutionException { |
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lock.lock(); |
116 |
try { |
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while (!done) |
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cond.await(); |
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if (cancelled) |
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throw new CancellationException(); |
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if (exception != null) |
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throw new ExecutionException(exception); |
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return result; |
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} |
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finally { lock.unlock(); } |
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} |
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public V get(long timeout, TimeUnit unit) |
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throws InterruptedException, ExecutionException, TimeoutException { |
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long nanos = unit.toNanos(timeout); |
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lock.lock(); |
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try { |
132 |
while (!done) { |
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if (nanos <= 0L) |
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throw new TimeoutException(); |
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nanos = cond.awaitNanos(nanos); |
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} |
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if (cancelled) |
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throw new CancellationException(); |
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if (exception != null) |
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throw new ExecutionException(exception); |
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return result; |
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} |
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finally { lock.unlock(); } |
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} |
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} |
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|
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static class CustomTPE extends ThreadPoolExecutor { |
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protected <V> RunnableFuture<V> newTaskFor(Callable<V> c) { |
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return new CustomTask<V>(c); |
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} |
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protected <V> RunnableFuture<V> newTaskFor(Runnable r, V v) { |
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return new CustomTask<V>(r, v); |
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} |
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|
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CustomTPE(int corePoolSize, |
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int maximumPoolSize, |
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long keepAliveTime, |
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TimeUnit unit, |
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BlockingQueue<Runnable> workQueue) { |
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super(corePoolSize, maximumPoolSize, keepAliveTime, unit, |
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workQueue); |
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} |
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CustomTPE(int corePoolSize, |
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int maximumPoolSize, |
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long keepAliveTime, |
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TimeUnit unit, |
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BlockingQueue<Runnable> workQueue, |
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ThreadFactory threadFactory) { |
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super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, |
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threadFactory); |
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} |
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|
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CustomTPE(int corePoolSize, |
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int maximumPoolSize, |
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long keepAliveTime, |
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TimeUnit unit, |
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BlockingQueue<Runnable> workQueue, |
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RejectedExecutionHandler handler) { |
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super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, |
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handler); |
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} |
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CustomTPE(int corePoolSize, |
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int maximumPoolSize, |
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long keepAliveTime, |
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TimeUnit unit, |
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BlockingQueue<Runnable> workQueue, |
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ThreadFactory threadFactory, |
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RejectedExecutionHandler handler) { |
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super(corePoolSize, maximumPoolSize, keepAliveTime, unit, |
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workQueue, threadFactory, handler); |
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} |
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|
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final CountDownLatch beforeCalled = new CountDownLatch(1); |
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final CountDownLatch afterCalled = new CountDownLatch(1); |
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final CountDownLatch terminatedCalled = new CountDownLatch(1); |
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|
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public CustomTPE() { |
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super(1, 1, LONG_DELAY_MS, MILLISECONDS, new SynchronousQueue<Runnable>()); |
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} |
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protected void beforeExecute(Thread t, Runnable r) { |
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beforeCalled.countDown(); |
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} |
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protected void afterExecute(Runnable r, Throwable t) { |
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afterCalled.countDown(); |
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} |
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protected void terminated() { |
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terminatedCalled.countDown(); |
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} |
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|
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public boolean beforeCalled() { |
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return beforeCalled.getCount() == 0; |
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} |
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public boolean afterCalled() { |
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return afterCalled.getCount() == 0; |
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} |
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public boolean terminatedCalled() { |
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return terminatedCalled.getCount() == 0; |
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} |
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} |
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|
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static class FailingThreadFactory implements ThreadFactory { |
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int calls = 0; |
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public Thread newThread(Runnable r) { |
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if (++calls > 1) return null; |
225 |
return new Thread(r); |
226 |
} |
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} |
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|
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/** |
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* execute successfully executes a runnable |
231 |
*/ |
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public void testExecute() throws InterruptedException { |
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final ThreadPoolExecutor p = |
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new CustomTPE(1, 1, |
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2 * LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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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() { done.countDown(); }}; |
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p.execute(task); |
242 |
assertTrue(done.await(LONG_DELAY_MS, MILLISECONDS)); |
243 |
} |
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} |
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|
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/** |
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* getActiveCount increases but doesn't overestimate, when a |
248 |
* thread becomes active |
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*/ |
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public void testGetActiveCount() throws InterruptedException { |
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final ThreadPoolExecutor p = |
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new CustomTPE(2, 2, |
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LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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final CountDownLatch threadStarted = new CountDownLatch(1); |
257 |
final CountDownLatch done = new CountDownLatch(1); |
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assertEquals(0, p.getActiveCount()); |
259 |
p.execute(new CheckedRunnable() { |
260 |
public void realRun() throws InterruptedException { |
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threadStarted.countDown(); |
262 |
assertEquals(1, p.getActiveCount()); |
263 |
done.await(); |
264 |
}}); |
265 |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
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assertEquals(1, p.getActiveCount()); |
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done.countDown(); |
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} |
269 |
} |
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|
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/** |
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* prestartCoreThread starts a thread if under corePoolSize, else doesn't |
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*/ |
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public void testPrestartCoreThread() { |
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final ThreadPoolExecutor p = |
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new CustomTPE(2, 6, |
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LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
279 |
try (PoolCleaner cleaner = cleaner(p)) { |
280 |
assertEquals(0, p.getPoolSize()); |
281 |
assertTrue(p.prestartCoreThread()); |
282 |
assertEquals(1, p.getPoolSize()); |
283 |
assertTrue(p.prestartCoreThread()); |
284 |
assertEquals(2, p.getPoolSize()); |
285 |
assertFalse(p.prestartCoreThread()); |
286 |
assertEquals(2, p.getPoolSize()); |
287 |
p.setCorePoolSize(4); |
288 |
assertTrue(p.prestartCoreThread()); |
289 |
assertEquals(3, p.getPoolSize()); |
290 |
assertTrue(p.prestartCoreThread()); |
291 |
assertEquals(4, p.getPoolSize()); |
292 |
assertFalse(p.prestartCoreThread()); |
293 |
assertEquals(4, p.getPoolSize()); |
294 |
} |
295 |
} |
296 |
|
297 |
/** |
298 |
* prestartAllCoreThreads starts all corePoolSize threads |
299 |
*/ |
300 |
public void testPrestartAllCoreThreads() { |
301 |
final ThreadPoolExecutor p = |
302 |
new CustomTPE(2, 6, |
303 |
LONG_DELAY_MS, MILLISECONDS, |
304 |
new ArrayBlockingQueue<Runnable>(10)); |
305 |
try (PoolCleaner cleaner = cleaner(p)) { |
306 |
assertEquals(0, p.getPoolSize()); |
307 |
p.prestartAllCoreThreads(); |
308 |
assertEquals(2, p.getPoolSize()); |
309 |
p.prestartAllCoreThreads(); |
310 |
assertEquals(2, p.getPoolSize()); |
311 |
p.setCorePoolSize(4); |
312 |
p.prestartAllCoreThreads(); |
313 |
assertEquals(4, p.getPoolSize()); |
314 |
p.prestartAllCoreThreads(); |
315 |
assertEquals(4, p.getPoolSize()); |
316 |
} |
317 |
} |
318 |
|
319 |
/** |
320 |
* getCompletedTaskCount increases, but doesn't overestimate, |
321 |
* when tasks complete |
322 |
*/ |
323 |
public void testGetCompletedTaskCount() throws InterruptedException { |
324 |
final ThreadPoolExecutor p = |
325 |
new CustomTPE(2, 2, |
326 |
LONG_DELAY_MS, MILLISECONDS, |
327 |
new ArrayBlockingQueue<Runnable>(10)); |
328 |
try (PoolCleaner cleaner = cleaner(p)) { |
329 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
330 |
final CountDownLatch threadProceed = new CountDownLatch(1); |
331 |
final CountDownLatch threadDone = new CountDownLatch(1); |
332 |
assertEquals(0, p.getCompletedTaskCount()); |
333 |
p.execute(new CheckedRunnable() { |
334 |
public void realRun() throws InterruptedException { |
335 |
threadStarted.countDown(); |
336 |
assertEquals(0, p.getCompletedTaskCount()); |
337 |
threadProceed.await(); |
338 |
threadDone.countDown(); |
339 |
}}); |
340 |
await(threadStarted); |
341 |
assertEquals(0, p.getCompletedTaskCount()); |
342 |
threadProceed.countDown(); |
343 |
threadDone.await(); |
344 |
long startTime = System.nanoTime(); |
345 |
while (p.getCompletedTaskCount() != 1) { |
346 |
if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
347 |
fail("timed out"); |
348 |
Thread.yield(); |
349 |
} |
350 |
} |
351 |
} |
352 |
|
353 |
/** |
354 |
* getCorePoolSize returns size given in constructor if not otherwise set |
355 |
*/ |
356 |
public void testGetCorePoolSize() { |
357 |
final ThreadPoolExecutor p = |
358 |
new CustomTPE(1, 1, |
359 |
LONG_DELAY_MS, MILLISECONDS, |
360 |
new ArrayBlockingQueue<Runnable>(10)); |
361 |
try (PoolCleaner cleaner = cleaner(p)) { |
362 |
assertEquals(1, p.getCorePoolSize()); |
363 |
} |
364 |
} |
365 |
|
366 |
/** |
367 |
* getKeepAliveTime returns value given in constructor if not otherwise set |
368 |
*/ |
369 |
public void testGetKeepAliveTime() { |
370 |
final ThreadPoolExecutor p = |
371 |
new CustomTPE(2, 2, |
372 |
1000, MILLISECONDS, |
373 |
new ArrayBlockingQueue<Runnable>(10)); |
374 |
try (PoolCleaner cleaner = cleaner(p)) { |
375 |
assertEquals(1, p.getKeepAliveTime(SECONDS)); |
376 |
} |
377 |
} |
378 |
|
379 |
/** |
380 |
* getThreadFactory returns factory in constructor if not set |
381 |
*/ |
382 |
public void testGetThreadFactory() { |
383 |
final ThreadFactory threadFactory = new SimpleThreadFactory(); |
384 |
final ThreadPoolExecutor p = |
385 |
new CustomTPE(1, 2, |
386 |
LONG_DELAY_MS, MILLISECONDS, |
387 |
new ArrayBlockingQueue<Runnable>(10), |
388 |
threadFactory, |
389 |
new NoOpREHandler()); |
390 |
try (PoolCleaner cleaner = cleaner(p)) { |
391 |
assertSame(threadFactory, p.getThreadFactory()); |
392 |
} |
393 |
} |
394 |
|
395 |
/** |
396 |
* setThreadFactory sets the thread factory returned by getThreadFactory |
397 |
*/ |
398 |
public void testSetThreadFactory() { |
399 |
final ThreadPoolExecutor p = |
400 |
new CustomTPE(1, 2, |
401 |
LONG_DELAY_MS, MILLISECONDS, |
402 |
new ArrayBlockingQueue<Runnable>(10)); |
403 |
try (PoolCleaner cleaner = cleaner(p)) { |
404 |
ThreadFactory threadFactory = new SimpleThreadFactory(); |
405 |
p.setThreadFactory(threadFactory); |
406 |
assertSame(threadFactory, p.getThreadFactory()); |
407 |
} |
408 |
} |
409 |
|
410 |
/** |
411 |
* setThreadFactory(null) throws NPE |
412 |
*/ |
413 |
public void testSetThreadFactoryNull() { |
414 |
final ThreadPoolExecutor p = |
415 |
new CustomTPE(1, 2, |
416 |
LONG_DELAY_MS, MILLISECONDS, |
417 |
new ArrayBlockingQueue<Runnable>(10)); |
418 |
try (PoolCleaner cleaner = cleaner(p)) { |
419 |
try { |
420 |
p.setThreadFactory(null); |
421 |
shouldThrow(); |
422 |
} catch (NullPointerException success) {} |
423 |
} |
424 |
} |
425 |
|
426 |
/** |
427 |
* getRejectedExecutionHandler returns handler in constructor if not set |
428 |
*/ |
429 |
public void testGetRejectedExecutionHandler() { |
430 |
final RejectedExecutionHandler handler = new NoOpREHandler(); |
431 |
final ThreadPoolExecutor p = |
432 |
new CustomTPE(1, 2, |
433 |
LONG_DELAY_MS, MILLISECONDS, |
434 |
new ArrayBlockingQueue<Runnable>(10), |
435 |
handler); |
436 |
try (PoolCleaner cleaner = cleaner(p)) { |
437 |
assertSame(handler, p.getRejectedExecutionHandler()); |
438 |
} |
439 |
} |
440 |
|
441 |
/** |
442 |
* setRejectedExecutionHandler sets the handler returned by |
443 |
* getRejectedExecutionHandler |
444 |
*/ |
445 |
public void testSetRejectedExecutionHandler() { |
446 |
final ThreadPoolExecutor p = |
447 |
new CustomTPE(1, 2, |
448 |
LONG_DELAY_MS, MILLISECONDS, |
449 |
new ArrayBlockingQueue<Runnable>(10)); |
450 |
try (PoolCleaner cleaner = cleaner(p)) { |
451 |
RejectedExecutionHandler handler = new NoOpREHandler(); |
452 |
p.setRejectedExecutionHandler(handler); |
453 |
assertSame(handler, p.getRejectedExecutionHandler()); |
454 |
} |
455 |
} |
456 |
|
457 |
/** |
458 |
* setRejectedExecutionHandler(null) throws NPE |
459 |
*/ |
460 |
public void testSetRejectedExecutionHandlerNull() { |
461 |
final ThreadPoolExecutor p = |
462 |
new CustomTPE(1, 2, |
463 |
LONG_DELAY_MS, MILLISECONDS, |
464 |
new ArrayBlockingQueue<Runnable>(10)); |
465 |
try (PoolCleaner cleaner = cleaner(p)) { |
466 |
try { |
467 |
p.setRejectedExecutionHandler(null); |
468 |
shouldThrow(); |
469 |
} catch (NullPointerException success) {} |
470 |
} |
471 |
} |
472 |
|
473 |
/** |
474 |
* getLargestPoolSize increases, but doesn't overestimate, when |
475 |
* multiple threads active |
476 |
*/ |
477 |
public void testGetLargestPoolSize() throws InterruptedException { |
478 |
final int THREADS = 3; |
479 |
final ThreadPoolExecutor p = |
480 |
new CustomTPE(THREADS, THREADS, |
481 |
LONG_DELAY_MS, MILLISECONDS, |
482 |
new ArrayBlockingQueue<Runnable>(10)); |
483 |
try (PoolCleaner cleaner = cleaner(p)) { |
484 |
final CountDownLatch threadsStarted = new CountDownLatch(THREADS); |
485 |
final CountDownLatch done = new CountDownLatch(1); |
486 |
assertEquals(0, p.getLargestPoolSize()); |
487 |
for (int i = 0; i < THREADS; i++) |
488 |
p.execute(new CheckedRunnable() { |
489 |
public void realRun() throws InterruptedException { |
490 |
threadsStarted.countDown(); |
491 |
done.await(); |
492 |
assertEquals(THREADS, p.getLargestPoolSize()); |
493 |
}}); |
494 |
assertTrue(threadsStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
495 |
assertEquals(THREADS, p.getLargestPoolSize()); |
496 |
done.countDown(); // release pool |
497 |
} |
498 |
assertEquals(THREADS, p.getLargestPoolSize()); |
499 |
} |
500 |
|
501 |
/** |
502 |
* getMaximumPoolSize returns value given in constructor if not |
503 |
* otherwise set |
504 |
*/ |
505 |
public void testGetMaximumPoolSize() { |
506 |
final ThreadPoolExecutor p = |
507 |
new CustomTPE(2, 3, |
508 |
LONG_DELAY_MS, MILLISECONDS, |
509 |
new ArrayBlockingQueue<Runnable>(10)); |
510 |
try (PoolCleaner cleaner = cleaner(p)) { |
511 |
assertEquals(3, p.getMaximumPoolSize()); |
512 |
p.setMaximumPoolSize(5); |
513 |
assertEquals(5, p.getMaximumPoolSize()); |
514 |
p.setMaximumPoolSize(4); |
515 |
assertEquals(4, p.getMaximumPoolSize()); |
516 |
} |
517 |
} |
518 |
|
519 |
/** |
520 |
* getPoolSize increases, but doesn't overestimate, when threads |
521 |
* become active |
522 |
*/ |
523 |
public void testGetPoolSize() throws InterruptedException { |
524 |
final ThreadPoolExecutor p = |
525 |
new CustomTPE(1, 1, |
526 |
LONG_DELAY_MS, MILLISECONDS, |
527 |
new ArrayBlockingQueue<Runnable>(10)); |
528 |
try (PoolCleaner cleaner = cleaner(p)) { |
529 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
530 |
final CountDownLatch done = new CountDownLatch(1); |
531 |
assertEquals(0, p.getPoolSize()); |
532 |
p.execute(new CheckedRunnable() { |
533 |
public void realRun() throws InterruptedException { |
534 |
threadStarted.countDown(); |
535 |
assertEquals(1, p.getPoolSize()); |
536 |
done.await(); |
537 |
}}); |
538 |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
539 |
assertEquals(1, p.getPoolSize()); |
540 |
done.countDown(); // release pool |
541 |
} |
542 |
} |
543 |
|
544 |
/** |
545 |
* getTaskCount increases, but doesn't overestimate, when tasks submitted |
546 |
*/ |
547 |
public void testGetTaskCount() throws InterruptedException { |
548 |
final ThreadPoolExecutor p = |
549 |
new CustomTPE(1, 1, |
550 |
LONG_DELAY_MS, MILLISECONDS, |
551 |
new ArrayBlockingQueue<Runnable>(10)); |
552 |
try (PoolCleaner cleaner = cleaner(p)) { |
553 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
554 |
final CountDownLatch done = new CountDownLatch(1); |
555 |
assertEquals(0, p.getTaskCount()); |
556 |
p.execute(new CheckedRunnable() { |
557 |
public void realRun() throws InterruptedException { |
558 |
threadStarted.countDown(); |
559 |
assertEquals(1, p.getTaskCount()); |
560 |
done.await(); |
561 |
}}); |
562 |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
563 |
assertEquals(1, p.getTaskCount()); |
564 |
done.countDown(); |
565 |
} |
566 |
} |
567 |
|
568 |
/** |
569 |
* isShutdown is false before shutdown, true after |
570 |
*/ |
571 |
public void testIsShutdown() { |
572 |
final ThreadPoolExecutor p = |
573 |
new CustomTPE(1, 1, |
574 |
LONG_DELAY_MS, MILLISECONDS, |
575 |
new ArrayBlockingQueue<Runnable>(10)); |
576 |
try (PoolCleaner cleaner = cleaner(p)) { |
577 |
assertFalse(p.isShutdown()); |
578 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
579 |
assertTrue(p.isShutdown()); |
580 |
} |
581 |
} |
582 |
|
583 |
/** |
584 |
* isTerminated is false before termination, true after |
585 |
*/ |
586 |
public void testIsTerminated() throws InterruptedException { |
587 |
final ThreadPoolExecutor p = |
588 |
new CustomTPE(1, 1, |
589 |
LONG_DELAY_MS, MILLISECONDS, |
590 |
new ArrayBlockingQueue<Runnable>(10)); |
591 |
try (PoolCleaner cleaner = cleaner(p)) { |
592 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
593 |
final CountDownLatch done = new CountDownLatch(1); |
594 |
assertFalse(p.isTerminating()); |
595 |
p.execute(new CheckedRunnable() { |
596 |
public void realRun() throws InterruptedException { |
597 |
assertFalse(p.isTerminating()); |
598 |
threadStarted.countDown(); |
599 |
done.await(); |
600 |
}}); |
601 |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
602 |
assertFalse(p.isTerminating()); |
603 |
done.countDown(); |
604 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
605 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
606 |
assertTrue(p.isTerminated()); |
607 |
assertFalse(p.isTerminating()); |
608 |
} |
609 |
} |
610 |
|
611 |
/** |
612 |
* isTerminating is not true when running or when terminated |
613 |
*/ |
614 |
public void testIsTerminating() throws InterruptedException { |
615 |
final ThreadPoolExecutor p = |
616 |
new CustomTPE(1, 1, |
617 |
LONG_DELAY_MS, MILLISECONDS, |
618 |
new ArrayBlockingQueue<Runnable>(10)); |
619 |
try (PoolCleaner cleaner = cleaner(p)) { |
620 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
621 |
final CountDownLatch done = new CountDownLatch(1); |
622 |
assertFalse(p.isTerminating()); |
623 |
p.execute(new CheckedRunnable() { |
624 |
public void realRun() throws InterruptedException { |
625 |
assertFalse(p.isTerminating()); |
626 |
threadStarted.countDown(); |
627 |
done.await(); |
628 |
}}); |
629 |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
630 |
assertFalse(p.isTerminating()); |
631 |
done.countDown(); |
632 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
633 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
634 |
assertTrue(p.isTerminated()); |
635 |
assertFalse(p.isTerminating()); |
636 |
} |
637 |
} |
638 |
|
639 |
/** |
640 |
* getQueue returns the work queue, which contains queued tasks |
641 |
*/ |
642 |
public void testGetQueue() throws InterruptedException { |
643 |
final BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10); |
644 |
final ThreadPoolExecutor p = |
645 |
new CustomTPE(1, 1, |
646 |
LONG_DELAY_MS, MILLISECONDS, |
647 |
q); |
648 |
try (PoolCleaner cleaner = cleaner(p)) { |
649 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
650 |
final CountDownLatch done = new CountDownLatch(1); |
651 |
FutureTask[] tasks = new FutureTask[5]; |
652 |
for (int i = 0; i < tasks.length; i++) { |
653 |
Callable task = new CheckedCallable<Boolean>() { |
654 |
public Boolean realCall() throws InterruptedException { |
655 |
threadStarted.countDown(); |
656 |
assertSame(q, p.getQueue()); |
657 |
done.await(); |
658 |
return Boolean.TRUE; |
659 |
}}; |
660 |
tasks[i] = new FutureTask(task); |
661 |
p.execute(tasks[i]); |
662 |
} |
663 |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
664 |
assertSame(q, p.getQueue()); |
665 |
assertFalse(q.contains(tasks[0])); |
666 |
assertTrue(q.contains(tasks[tasks.length - 1])); |
667 |
assertEquals(tasks.length - 1, q.size()); |
668 |
done.countDown(); |
669 |
} |
670 |
} |
671 |
|
672 |
/** |
673 |
* remove(task) removes queued task, and fails to remove active task |
674 |
*/ |
675 |
public void testRemove() throws InterruptedException { |
676 |
BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10); |
677 |
final ThreadPoolExecutor p = |
678 |
new CustomTPE(1, 1, |
679 |
LONG_DELAY_MS, MILLISECONDS, |
680 |
q); |
681 |
try (PoolCleaner cleaner = cleaner(p)) { |
682 |
Runnable[] tasks = new Runnable[6]; |
683 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
684 |
final CountDownLatch done = new CountDownLatch(1); |
685 |
for (int i = 0; i < tasks.length; i++) { |
686 |
tasks[i] = new CheckedRunnable() { |
687 |
public void realRun() throws InterruptedException { |
688 |
threadStarted.countDown(); |
689 |
done.await(); |
690 |
}}; |
691 |
p.execute(tasks[i]); |
692 |
} |
693 |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
694 |
assertFalse(p.remove(tasks[0])); |
695 |
assertTrue(q.contains(tasks[4])); |
696 |
assertTrue(q.contains(tasks[3])); |
697 |
assertTrue(p.remove(tasks[4])); |
698 |
assertFalse(p.remove(tasks[4])); |
699 |
assertFalse(q.contains(tasks[4])); |
700 |
assertTrue(q.contains(tasks[3])); |
701 |
assertTrue(p.remove(tasks[3])); |
702 |
assertFalse(q.contains(tasks[3])); |
703 |
done.countDown(); |
704 |
} |
705 |
} |
706 |
|
707 |
/** |
708 |
* purge removes cancelled tasks from the queue |
709 |
*/ |
710 |
public void testPurge() throws InterruptedException { |
711 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
712 |
final CountDownLatch done = new CountDownLatch(1); |
713 |
final BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10); |
714 |
final ThreadPoolExecutor p = |
715 |
new CustomTPE(1, 1, |
716 |
LONG_DELAY_MS, MILLISECONDS, |
717 |
q); |
718 |
try (PoolCleaner cleaner = cleaner(p)) { |
719 |
FutureTask[] tasks = new FutureTask[5]; |
720 |
for (int i = 0; i < tasks.length; i++) { |
721 |
Callable task = new CheckedCallable<Boolean>() { |
722 |
public Boolean realCall() throws InterruptedException { |
723 |
threadStarted.countDown(); |
724 |
done.await(); |
725 |
return Boolean.TRUE; |
726 |
}}; |
727 |
tasks[i] = new FutureTask(task); |
728 |
p.execute(tasks[i]); |
729 |
} |
730 |
assertTrue(threadStarted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
731 |
assertEquals(tasks.length, p.getTaskCount()); |
732 |
assertEquals(tasks.length - 1, q.size()); |
733 |
assertEquals(1L, p.getActiveCount()); |
734 |
assertEquals(0L, p.getCompletedTaskCount()); |
735 |
tasks[4].cancel(true); |
736 |
tasks[3].cancel(false); |
737 |
p.purge(); |
738 |
assertEquals(tasks.length - 3, q.size()); |
739 |
assertEquals(tasks.length - 2, p.getTaskCount()); |
740 |
p.purge(); // Nothing to do |
741 |
assertEquals(tasks.length - 3, q.size()); |
742 |
assertEquals(tasks.length - 2, p.getTaskCount()); |
743 |
done.countDown(); |
744 |
} |
745 |
} |
746 |
|
747 |
/** |
748 |
* shutdownNow returns a list containing tasks that were not run, |
749 |
* and those tasks are drained from the queue |
750 |
*/ |
751 |
public void testShutdownNow() throws InterruptedException { |
752 |
final int poolSize = 2; |
753 |
final int count = 5; |
754 |
final AtomicInteger ran = new AtomicInteger(0); |
755 |
final ThreadPoolExecutor p = |
756 |
new CustomTPE(poolSize, poolSize, |
757 |
LONG_DELAY_MS, MILLISECONDS, |
758 |
new ArrayBlockingQueue<Runnable>(10)); |
759 |
CountDownLatch threadsStarted = new CountDownLatch(poolSize); |
760 |
Runnable waiter = new CheckedRunnable() { public void realRun() { |
761 |
threadsStarted.countDown(); |
762 |
try { |
763 |
MILLISECONDS.sleep(2 * LONG_DELAY_MS); |
764 |
} catch (InterruptedException success) {} |
765 |
ran.getAndIncrement(); |
766 |
}}; |
767 |
for (int i = 0; i < count; i++) |
768 |
p.execute(waiter); |
769 |
assertTrue(threadsStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
770 |
assertEquals(poolSize, p.getActiveCount()); |
771 |
assertEquals(0, p.getCompletedTaskCount()); |
772 |
final List<Runnable> queuedTasks; |
773 |
try { |
774 |
queuedTasks = p.shutdownNow(); |
775 |
} catch (SecurityException ok) { |
776 |
return; // Allowed in case test doesn't have privs |
777 |
} |
778 |
assertTrue(p.isShutdown()); |
779 |
assertTrue(p.getQueue().isEmpty()); |
780 |
assertEquals(count - poolSize, queuedTasks.size()); |
781 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
782 |
assertTrue(p.isTerminated()); |
783 |
assertEquals(poolSize, ran.get()); |
784 |
assertEquals(poolSize, p.getCompletedTaskCount()); |
785 |
} |
786 |
|
787 |
// Exception Tests |
788 |
|
789 |
/** |
790 |
* Constructor throws if corePoolSize argument is less than zero |
791 |
*/ |
792 |
public void testConstructor1() { |
793 |
try { |
794 |
new CustomTPE(-1, 1, 1L, SECONDS, |
795 |
new ArrayBlockingQueue<Runnable>(10)); |
796 |
shouldThrow(); |
797 |
} catch (IllegalArgumentException success) {} |
798 |
} |
799 |
|
800 |
/** |
801 |
* Constructor throws if maximumPoolSize is less than zero |
802 |
*/ |
803 |
public void testConstructor2() { |
804 |
try { |
805 |
new CustomTPE(1, -1, 1L, SECONDS, |
806 |
new ArrayBlockingQueue<Runnable>(10)); |
807 |
shouldThrow(); |
808 |
} catch (IllegalArgumentException success) {} |
809 |
} |
810 |
|
811 |
/** |
812 |
* Constructor throws if maximumPoolSize is equal to zero |
813 |
*/ |
814 |
public void testConstructor3() { |
815 |
try { |
816 |
new CustomTPE(1, 0, 1L, SECONDS, |
817 |
new ArrayBlockingQueue<Runnable>(10)); |
818 |
shouldThrow(); |
819 |
} catch (IllegalArgumentException success) {} |
820 |
} |
821 |
|
822 |
/** |
823 |
* Constructor throws if keepAliveTime is less than zero |
824 |
*/ |
825 |
public void testConstructor4() { |
826 |
try { |
827 |
new CustomTPE(1, 2, -1L, SECONDS, |
828 |
new ArrayBlockingQueue<Runnable>(10)); |
829 |
shouldThrow(); |
830 |
} catch (IllegalArgumentException success) {} |
831 |
} |
832 |
|
833 |
/** |
834 |
* Constructor throws if corePoolSize is greater than the maximumPoolSize |
835 |
*/ |
836 |
public void testConstructor5() { |
837 |
try { |
838 |
new CustomTPE(2, 1, 1L, SECONDS, |
839 |
new ArrayBlockingQueue<Runnable>(10)); |
840 |
shouldThrow(); |
841 |
} catch (IllegalArgumentException success) {} |
842 |
} |
843 |
|
844 |
/** |
845 |
* Constructor throws if workQueue is set to null |
846 |
*/ |
847 |
public void testConstructorNullPointerException() { |
848 |
try { |
849 |
new CustomTPE(1, 2, 1L, SECONDS, null); |
850 |
shouldThrow(); |
851 |
} catch (NullPointerException success) {} |
852 |
} |
853 |
|
854 |
/** |
855 |
* Constructor throws if corePoolSize argument is less than zero |
856 |
*/ |
857 |
public void testConstructor6() { |
858 |
try { |
859 |
new CustomTPE(-1, 1, 1L, SECONDS, |
860 |
new ArrayBlockingQueue<Runnable>(10), |
861 |
new SimpleThreadFactory()); |
862 |
shouldThrow(); |
863 |
} catch (IllegalArgumentException success) {} |
864 |
} |
865 |
|
866 |
/** |
867 |
* Constructor throws if maximumPoolSize is less than zero |
868 |
*/ |
869 |
public void testConstructor7() { |
870 |
try { |
871 |
new CustomTPE(1,-1, 1L, SECONDS, |
872 |
new ArrayBlockingQueue<Runnable>(10), |
873 |
new SimpleThreadFactory()); |
874 |
shouldThrow(); |
875 |
} catch (IllegalArgumentException success) {} |
876 |
} |
877 |
|
878 |
/** |
879 |
* Constructor throws if maximumPoolSize is equal to zero |
880 |
*/ |
881 |
public void testConstructor8() { |
882 |
try { |
883 |
new CustomTPE(1, 0, 1L, SECONDS, |
884 |
new ArrayBlockingQueue<Runnable>(10), |
885 |
new SimpleThreadFactory()); |
886 |
shouldThrow(); |
887 |
} catch (IllegalArgumentException success) {} |
888 |
} |
889 |
|
890 |
/** |
891 |
* Constructor throws if keepAliveTime is less than zero |
892 |
*/ |
893 |
public void testConstructor9() { |
894 |
try { |
895 |
new CustomTPE(1, 2, -1L, SECONDS, |
896 |
new ArrayBlockingQueue<Runnable>(10), |
897 |
new SimpleThreadFactory()); |
898 |
shouldThrow(); |
899 |
} catch (IllegalArgumentException success) {} |
900 |
} |
901 |
|
902 |
/** |
903 |
* Constructor throws if corePoolSize is greater than the maximumPoolSize |
904 |
*/ |
905 |
public void testConstructor10() { |
906 |
try { |
907 |
new CustomTPE(2, 1, 1L, SECONDS, |
908 |
new ArrayBlockingQueue<Runnable>(10), |
909 |
new SimpleThreadFactory()); |
910 |
shouldThrow(); |
911 |
} catch (IllegalArgumentException success) {} |
912 |
} |
913 |
|
914 |
/** |
915 |
* Constructor throws if workQueue is set to null |
916 |
*/ |
917 |
public void testConstructorNullPointerException2() { |
918 |
try { |
919 |
new CustomTPE(1, 2, 1L, SECONDS, null, new SimpleThreadFactory()); |
920 |
shouldThrow(); |
921 |
} catch (NullPointerException success) {} |
922 |
} |
923 |
|
924 |
/** |
925 |
* Constructor throws if threadFactory is set to null |
926 |
*/ |
927 |
public void testConstructorNullPointerException3() { |
928 |
try { |
929 |
new CustomTPE(1, 2, 1L, SECONDS, |
930 |
new ArrayBlockingQueue<Runnable>(10), |
931 |
(ThreadFactory) null); |
932 |
shouldThrow(); |
933 |
} catch (NullPointerException success) {} |
934 |
} |
935 |
|
936 |
/** |
937 |
* Constructor throws if corePoolSize argument is less than zero |
938 |
*/ |
939 |
public void testConstructor11() { |
940 |
try { |
941 |
new CustomTPE(-1, 1, 1L, SECONDS, |
942 |
new ArrayBlockingQueue<Runnable>(10), |
943 |
new NoOpREHandler()); |
944 |
shouldThrow(); |
945 |
} catch (IllegalArgumentException success) {} |
946 |
} |
947 |
|
948 |
/** |
949 |
* Constructor throws if maximumPoolSize is less than zero |
950 |
*/ |
951 |
public void testConstructor12() { |
952 |
try { |
953 |
new CustomTPE(1, -1, 1L, SECONDS, |
954 |
new ArrayBlockingQueue<Runnable>(10), |
955 |
new NoOpREHandler()); |
956 |
shouldThrow(); |
957 |
} catch (IllegalArgumentException success) {} |
958 |
} |
959 |
|
960 |
/** |
961 |
* Constructor throws if maximumPoolSize is equal to zero |
962 |
*/ |
963 |
public void testConstructor13() { |
964 |
try { |
965 |
new CustomTPE(1, 0, 1L, SECONDS, |
966 |
new ArrayBlockingQueue<Runnable>(10), |
967 |
new NoOpREHandler()); |
968 |
shouldThrow(); |
969 |
} catch (IllegalArgumentException success) {} |
970 |
} |
971 |
|
972 |
/** |
973 |
* Constructor throws if keepAliveTime is less than zero |
974 |
*/ |
975 |
public void testConstructor14() { |
976 |
try { |
977 |
new CustomTPE(1, 2, -1L, SECONDS, |
978 |
new ArrayBlockingQueue<Runnable>(10), |
979 |
new NoOpREHandler()); |
980 |
shouldThrow(); |
981 |
} catch (IllegalArgumentException success) {} |
982 |
} |
983 |
|
984 |
/** |
985 |
* Constructor throws if corePoolSize is greater than the maximumPoolSize |
986 |
*/ |
987 |
public void testConstructor15() { |
988 |
try { |
989 |
new CustomTPE(2, 1, 1L, SECONDS, |
990 |
new ArrayBlockingQueue<Runnable>(10), |
991 |
new NoOpREHandler()); |
992 |
shouldThrow(); |
993 |
} catch (IllegalArgumentException success) {} |
994 |
} |
995 |
|
996 |
/** |
997 |
* Constructor throws if workQueue is set to null |
998 |
*/ |
999 |
public void testConstructorNullPointerException4() { |
1000 |
try { |
1001 |
new CustomTPE(1, 2, 1L, SECONDS, |
1002 |
null, |
1003 |
new NoOpREHandler()); |
1004 |
shouldThrow(); |
1005 |
} catch (NullPointerException success) {} |
1006 |
} |
1007 |
|
1008 |
/** |
1009 |
* Constructor throws if handler is set to null |
1010 |
*/ |
1011 |
public void testConstructorNullPointerException5() { |
1012 |
try { |
1013 |
new CustomTPE(1, 2, 1L, SECONDS, |
1014 |
new ArrayBlockingQueue<Runnable>(10), |
1015 |
(RejectedExecutionHandler) null); |
1016 |
shouldThrow(); |
1017 |
} catch (NullPointerException success) {} |
1018 |
} |
1019 |
|
1020 |
/** |
1021 |
* Constructor throws if corePoolSize argument is less than zero |
1022 |
*/ |
1023 |
public void testConstructor16() { |
1024 |
try { |
1025 |
new CustomTPE(-1, 1, 1L, SECONDS, |
1026 |
new ArrayBlockingQueue<Runnable>(10), |
1027 |
new SimpleThreadFactory(), |
1028 |
new NoOpREHandler()); |
1029 |
shouldThrow(); |
1030 |
} catch (IllegalArgumentException success) {} |
1031 |
} |
1032 |
|
1033 |
/** |
1034 |
* Constructor throws if maximumPoolSize is less than zero |
1035 |
*/ |
1036 |
public void testConstructor17() { |
1037 |
try { |
1038 |
new CustomTPE(1, -1, 1L, SECONDS, |
1039 |
new ArrayBlockingQueue<Runnable>(10), |
1040 |
new SimpleThreadFactory(), |
1041 |
new NoOpREHandler()); |
1042 |
shouldThrow(); |
1043 |
} catch (IllegalArgumentException success) {} |
1044 |
} |
1045 |
|
1046 |
/** |
1047 |
* Constructor throws if maximumPoolSize is equal to zero |
1048 |
*/ |
1049 |
public void testConstructor18() { |
1050 |
try { |
1051 |
new CustomTPE(1, 0, 1L, SECONDS, |
1052 |
new ArrayBlockingQueue<Runnable>(10), |
1053 |
new SimpleThreadFactory(), |
1054 |
new NoOpREHandler()); |
1055 |
shouldThrow(); |
1056 |
} catch (IllegalArgumentException success) {} |
1057 |
} |
1058 |
|
1059 |
/** |
1060 |
* Constructor throws if keepAliveTime is less than zero |
1061 |
*/ |
1062 |
public void testConstructor19() { |
1063 |
try { |
1064 |
new CustomTPE(1, 2, -1L, SECONDS, |
1065 |
new ArrayBlockingQueue<Runnable>(10), |
1066 |
new SimpleThreadFactory(), |
1067 |
new NoOpREHandler()); |
1068 |
shouldThrow(); |
1069 |
} catch (IllegalArgumentException success) {} |
1070 |
} |
1071 |
|
1072 |
/** |
1073 |
* Constructor throws if corePoolSize is greater than the maximumPoolSize |
1074 |
*/ |
1075 |
public void testConstructor20() { |
1076 |
try { |
1077 |
new CustomTPE(2, 1, 1L, SECONDS, |
1078 |
new ArrayBlockingQueue<Runnable>(10), |
1079 |
new SimpleThreadFactory(), |
1080 |
new NoOpREHandler()); |
1081 |
shouldThrow(); |
1082 |
} catch (IllegalArgumentException success) {} |
1083 |
} |
1084 |
|
1085 |
/** |
1086 |
* Constructor throws if workQueue is null |
1087 |
*/ |
1088 |
public void testConstructorNullPointerException6() { |
1089 |
try { |
1090 |
new CustomTPE(1, 2, 1L, SECONDS, |
1091 |
null, |
1092 |
new SimpleThreadFactory(), |
1093 |
new NoOpREHandler()); |
1094 |
shouldThrow(); |
1095 |
} catch (NullPointerException success) {} |
1096 |
} |
1097 |
|
1098 |
/** |
1099 |
* Constructor throws if handler is null |
1100 |
*/ |
1101 |
public void testConstructorNullPointerException7() { |
1102 |
try { |
1103 |
new CustomTPE(1, 2, 1L, SECONDS, |
1104 |
new ArrayBlockingQueue<Runnable>(10), |
1105 |
new SimpleThreadFactory(), |
1106 |
(RejectedExecutionHandler) null); |
1107 |
shouldThrow(); |
1108 |
} catch (NullPointerException success) {} |
1109 |
} |
1110 |
|
1111 |
/** |
1112 |
* Constructor throws if ThreadFactory is null |
1113 |
*/ |
1114 |
public void testConstructorNullPointerException8() { |
1115 |
try { |
1116 |
new CustomTPE(1, 2, 1L, SECONDS, |
1117 |
new ArrayBlockingQueue<Runnable>(10), |
1118 |
(ThreadFactory) null, |
1119 |
new NoOpREHandler()); |
1120 |
shouldThrow(); |
1121 |
} catch (NullPointerException success) {} |
1122 |
} |
1123 |
|
1124 |
/** |
1125 |
* execute throws RejectedExecutionException if saturated. |
1126 |
*/ |
1127 |
public void testSaturatedExecute() { |
1128 |
final ThreadPoolExecutor p = |
1129 |
new CustomTPE(1, 1, |
1130 |
LONG_DELAY_MS, MILLISECONDS, |
1131 |
new ArrayBlockingQueue<Runnable>(1)); |
1132 |
try (PoolCleaner cleaner = cleaner(p)) { |
1133 |
final CountDownLatch done = new CountDownLatch(1); |
1134 |
Runnable task = new CheckedRunnable() { |
1135 |
public void realRun() throws InterruptedException { |
1136 |
done.await(); |
1137 |
}}; |
1138 |
for (int i = 0; i < 2; ++i) |
1139 |
p.execute(task); |
1140 |
for (int i = 0; i < 2; ++i) { |
1141 |
try { |
1142 |
p.execute(task); |
1143 |
shouldThrow(); |
1144 |
} catch (RejectedExecutionException success) {} |
1145 |
assertTrue(p.getTaskCount() <= 2); |
1146 |
} |
1147 |
done.countDown(); |
1148 |
} |
1149 |
} |
1150 |
|
1151 |
/** |
1152 |
* executor using CallerRunsPolicy runs task if saturated. |
1153 |
*/ |
1154 |
public void testSaturatedExecute2() { |
1155 |
final ThreadPoolExecutor p = |
1156 |
new CustomTPE(1, 1, |
1157 |
LONG_DELAY_MS, MILLISECONDS, |
1158 |
new ArrayBlockingQueue<Runnable>(1), |
1159 |
new CustomTPE.CallerRunsPolicy()); |
1160 |
try (PoolCleaner cleaner = cleaner(p)) { |
1161 |
final CountDownLatch done = new CountDownLatch(1); |
1162 |
Runnable blocker = new CheckedRunnable() { |
1163 |
public void realRun() throws InterruptedException { |
1164 |
done.await(); |
1165 |
}}; |
1166 |
p.execute(blocker); |
1167 |
TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5]; |
1168 |
for (int i = 0; i < tasks.length; i++) |
1169 |
tasks[i] = new TrackedNoOpRunnable(); |
1170 |
for (int i = 0; i < tasks.length; i++) |
1171 |
p.execute(tasks[i]); |
1172 |
for (int i = 1; i < tasks.length; i++) |
1173 |
assertTrue(tasks[i].done); |
1174 |
assertFalse(tasks[0].done); // waiting in queue |
1175 |
done.countDown(); |
1176 |
} |
1177 |
} |
1178 |
|
1179 |
/** |
1180 |
* executor using DiscardPolicy drops task if saturated. |
1181 |
*/ |
1182 |
public void testSaturatedExecute3() { |
1183 |
final TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5]; |
1184 |
for (int i = 0; i < tasks.length; ++i) |
1185 |
tasks[i] = new TrackedNoOpRunnable(); |
1186 |
final ThreadPoolExecutor p = |
1187 |
new CustomTPE(1, 1, |
1188 |
LONG_DELAY_MS, MILLISECONDS, |
1189 |
new ArrayBlockingQueue<Runnable>(1), |
1190 |
new CustomTPE.DiscardPolicy()); |
1191 |
try (PoolCleaner cleaner = cleaner(p)) { |
1192 |
final CountDownLatch done = new CountDownLatch(1); |
1193 |
p.execute(awaiter(done)); |
1194 |
|
1195 |
for (TrackedNoOpRunnable task : tasks) |
1196 |
p.execute(task); |
1197 |
for (int i = 1; i < tasks.length; i++) |
1198 |
assertFalse(tasks[i].done); |
1199 |
done.countDown(); |
1200 |
} |
1201 |
for (int i = 1; i < tasks.length; i++) |
1202 |
assertFalse(tasks[i].done); |
1203 |
assertTrue(tasks[0].done); // was waiting in queue |
1204 |
} |
1205 |
|
1206 |
/** |
1207 |
* executor using DiscardOldestPolicy drops oldest task if saturated. |
1208 |
*/ |
1209 |
public void testSaturatedExecute4() { |
1210 |
final CountDownLatch done = new CountDownLatch(1); |
1211 |
LatchAwaiter r1 = awaiter(done); |
1212 |
LatchAwaiter r2 = awaiter(done); |
1213 |
LatchAwaiter r3 = awaiter(done); |
1214 |
final ThreadPoolExecutor p = |
1215 |
new CustomTPE(1, 1, |
1216 |
LONG_DELAY_MS, MILLISECONDS, |
1217 |
new ArrayBlockingQueue<Runnable>(1), |
1218 |
new CustomTPE.DiscardOldestPolicy()); |
1219 |
try (PoolCleaner cleaner = cleaner(p)) { |
1220 |
assertEquals(LatchAwaiter.NEW, r1.state); |
1221 |
assertEquals(LatchAwaiter.NEW, r2.state); |
1222 |
assertEquals(LatchAwaiter.NEW, r3.state); |
1223 |
p.execute(r1); |
1224 |
p.execute(r2); |
1225 |
assertTrue(p.getQueue().contains(r2)); |
1226 |
p.execute(r3); |
1227 |
assertFalse(p.getQueue().contains(r2)); |
1228 |
assertTrue(p.getQueue().contains(r3)); |
1229 |
done.countDown(); |
1230 |
} |
1231 |
assertEquals(LatchAwaiter.DONE, r1.state); |
1232 |
assertEquals(LatchAwaiter.NEW, r2.state); |
1233 |
assertEquals(LatchAwaiter.DONE, r3.state); |
1234 |
} |
1235 |
|
1236 |
/** |
1237 |
* execute throws RejectedExecutionException if shutdown |
1238 |
*/ |
1239 |
public void testRejectedExecutionExceptionOnShutdown() { |
1240 |
final ThreadPoolExecutor p = |
1241 |
new CustomTPE(1, 1, |
1242 |
LONG_DELAY_MS, MILLISECONDS, |
1243 |
new ArrayBlockingQueue<Runnable>(1)); |
1244 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1245 |
try (PoolCleaner cleaner = cleaner(p)) { |
1246 |
try { |
1247 |
p.execute(new NoOpRunnable()); |
1248 |
shouldThrow(); |
1249 |
} catch (RejectedExecutionException success) {} |
1250 |
} |
1251 |
} |
1252 |
|
1253 |
/** |
1254 |
* execute using CallerRunsPolicy drops task on shutdown |
1255 |
*/ |
1256 |
public void testCallerRunsOnShutdown() { |
1257 |
final ThreadPoolExecutor p = |
1258 |
new CustomTPE(1, 1, |
1259 |
LONG_DELAY_MS, MILLISECONDS, |
1260 |
new ArrayBlockingQueue<Runnable>(1), |
1261 |
new CustomTPE.CallerRunsPolicy()); |
1262 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1263 |
try (PoolCleaner cleaner = cleaner(p)) { |
1264 |
TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
1265 |
p.execute(r); |
1266 |
assertFalse(r.done); |
1267 |
} |
1268 |
} |
1269 |
|
1270 |
/** |
1271 |
* execute using DiscardPolicy drops task on shutdown |
1272 |
*/ |
1273 |
public void testDiscardOnShutdown() { |
1274 |
final ThreadPoolExecutor p = |
1275 |
new CustomTPE(1, 1, |
1276 |
LONG_DELAY_MS, MILLISECONDS, |
1277 |
new ArrayBlockingQueue<Runnable>(1), |
1278 |
new CustomTPE.DiscardPolicy()); |
1279 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1280 |
try (PoolCleaner cleaner = cleaner(p)) { |
1281 |
TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
1282 |
p.execute(r); |
1283 |
assertFalse(r.done); |
1284 |
} |
1285 |
} |
1286 |
|
1287 |
/** |
1288 |
* execute using DiscardOldestPolicy drops task on shutdown |
1289 |
*/ |
1290 |
public void testDiscardOldestOnShutdown() { |
1291 |
final ThreadPoolExecutor p = |
1292 |
new CustomTPE(1, 1, |
1293 |
LONG_DELAY_MS, MILLISECONDS, |
1294 |
new ArrayBlockingQueue<Runnable>(1), |
1295 |
new CustomTPE.DiscardOldestPolicy()); |
1296 |
|
1297 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1298 |
try (PoolCleaner cleaner = cleaner(p)) { |
1299 |
TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
1300 |
p.execute(r); |
1301 |
assertFalse(r.done); |
1302 |
} |
1303 |
} |
1304 |
|
1305 |
/** |
1306 |
* execute(null) throws NPE |
1307 |
*/ |
1308 |
public void testExecuteNull() { |
1309 |
final ThreadPoolExecutor p = |
1310 |
new CustomTPE(1, 2, |
1311 |
1L, SECONDS, |
1312 |
new ArrayBlockingQueue<Runnable>(10)); |
1313 |
try (PoolCleaner cleaner = cleaner(p)) { |
1314 |
try { |
1315 |
p.execute(null); |
1316 |
shouldThrow(); |
1317 |
} catch (NullPointerException success) {} |
1318 |
} |
1319 |
} |
1320 |
|
1321 |
/** |
1322 |
* setCorePoolSize of negative value throws IllegalArgumentException |
1323 |
*/ |
1324 |
public void testCorePoolSizeIllegalArgumentException() { |
1325 |
final ThreadPoolExecutor p = |
1326 |
new CustomTPE(1, 2, |
1327 |
LONG_DELAY_MS, MILLISECONDS, |
1328 |
new ArrayBlockingQueue<Runnable>(10)); |
1329 |
try (PoolCleaner cleaner = cleaner(p)) { |
1330 |
try { |
1331 |
p.setCorePoolSize(-1); |
1332 |
shouldThrow(); |
1333 |
} catch (IllegalArgumentException success) {} |
1334 |
} |
1335 |
} |
1336 |
|
1337 |
/** |
1338 |
* setMaximumPoolSize(int) throws IllegalArgumentException |
1339 |
* if given a value less the core pool size |
1340 |
*/ |
1341 |
public void testMaximumPoolSizeIllegalArgumentException() { |
1342 |
final ThreadPoolExecutor p = |
1343 |
new CustomTPE(2, 3, |
1344 |
LONG_DELAY_MS, MILLISECONDS, |
1345 |
new ArrayBlockingQueue<Runnable>(10)); |
1346 |
try (PoolCleaner cleaner = cleaner(p)) { |
1347 |
try { |
1348 |
p.setMaximumPoolSize(1); |
1349 |
shouldThrow(); |
1350 |
} catch (IllegalArgumentException success) {} |
1351 |
} |
1352 |
} |
1353 |
|
1354 |
/** |
1355 |
* setMaximumPoolSize throws IllegalArgumentException |
1356 |
* if given a negative value |
1357 |
*/ |
1358 |
public void testMaximumPoolSizeIllegalArgumentException2() { |
1359 |
final ThreadPoolExecutor p = |
1360 |
new CustomTPE(2, 3, |
1361 |
LONG_DELAY_MS, |
1362 |
MILLISECONDS,new ArrayBlockingQueue<Runnable>(10)); |
1363 |
try (PoolCleaner cleaner = cleaner(p)) { |
1364 |
try { |
1365 |
p.setMaximumPoolSize(-1); |
1366 |
shouldThrow(); |
1367 |
} catch (IllegalArgumentException success) {} |
1368 |
} |
1369 |
} |
1370 |
|
1371 |
/** |
1372 |
* setKeepAliveTime throws IllegalArgumentException |
1373 |
* when given a negative value |
1374 |
*/ |
1375 |
public void testKeepAliveTimeIllegalArgumentException() { |
1376 |
final ThreadPoolExecutor p = |
1377 |
new CustomTPE(2, 3, |
1378 |
LONG_DELAY_MS, MILLISECONDS, |
1379 |
new ArrayBlockingQueue<Runnable>(10)); |
1380 |
try (PoolCleaner cleaner = cleaner(p)) { |
1381 |
try { |
1382 |
p.setKeepAliveTime(-1, MILLISECONDS); |
1383 |
shouldThrow(); |
1384 |
} catch (IllegalArgumentException success) {} |
1385 |
} |
1386 |
} |
1387 |
|
1388 |
/** |
1389 |
* terminated() is called on termination |
1390 |
*/ |
1391 |
public void testTerminated() { |
1392 |
CustomTPE p = new CustomTPE(); |
1393 |
try (PoolCleaner cleaner = cleaner(p)) { |
1394 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1395 |
assertTrue(p.terminatedCalled()); |
1396 |
assertTrue(p.isShutdown()); |
1397 |
} |
1398 |
} |
1399 |
|
1400 |
/** |
1401 |
* beforeExecute and afterExecute are called when executing task |
1402 |
*/ |
1403 |
public void testBeforeAfter() throws InterruptedException { |
1404 |
CustomTPE p = new CustomTPE(); |
1405 |
try (PoolCleaner cleaner = cleaner(p)) { |
1406 |
final CountDownLatch done = new CountDownLatch(1); |
1407 |
p.execute(new CheckedRunnable() { |
1408 |
public void realRun() { |
1409 |
done.countDown(); |
1410 |
}}); |
1411 |
await(p.afterCalled); |
1412 |
assertEquals(0, done.getCount()); |
1413 |
assertTrue(p.afterCalled()); |
1414 |
assertTrue(p.beforeCalled()); |
1415 |
} |
1416 |
} |
1417 |
|
1418 |
/** |
1419 |
* completed submit of callable returns result |
1420 |
*/ |
1421 |
public void testSubmitCallable() throws Exception { |
1422 |
final ExecutorService e = |
1423 |
new CustomTPE(2, 2, |
1424 |
LONG_DELAY_MS, MILLISECONDS, |
1425 |
new ArrayBlockingQueue<Runnable>(10)); |
1426 |
try (PoolCleaner cleaner = cleaner(e)) { |
1427 |
Future<String> future = e.submit(new StringTask()); |
1428 |
String result = future.get(); |
1429 |
assertSame(TEST_STRING, result); |
1430 |
} |
1431 |
} |
1432 |
|
1433 |
/** |
1434 |
* completed submit of runnable returns successfully |
1435 |
*/ |
1436 |
public void testSubmitRunnable() throws Exception { |
1437 |
final ExecutorService e = |
1438 |
new CustomTPE(2, 2, |
1439 |
LONG_DELAY_MS, MILLISECONDS, |
1440 |
new ArrayBlockingQueue<Runnable>(10)); |
1441 |
try (PoolCleaner cleaner = cleaner(e)) { |
1442 |
Future<?> future = e.submit(new NoOpRunnable()); |
1443 |
future.get(); |
1444 |
assertTrue(future.isDone()); |
1445 |
} |
1446 |
} |
1447 |
|
1448 |
/** |
1449 |
* completed submit of (runnable, result) returns result |
1450 |
*/ |
1451 |
public void testSubmitRunnable2() throws Exception { |
1452 |
final ExecutorService e = |
1453 |
new CustomTPE(2, 2, |
1454 |
LONG_DELAY_MS, MILLISECONDS, |
1455 |
new ArrayBlockingQueue<Runnable>(10)); |
1456 |
try (PoolCleaner cleaner = cleaner(e)) { |
1457 |
Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING); |
1458 |
String result = future.get(); |
1459 |
assertSame(TEST_STRING, result); |
1460 |
} |
1461 |
} |
1462 |
|
1463 |
/** |
1464 |
* invokeAny(null) throws NPE |
1465 |
*/ |
1466 |
public void testInvokeAny1() throws Exception { |
1467 |
final ExecutorService e = |
1468 |
new CustomTPE(2, 2, |
1469 |
LONG_DELAY_MS, MILLISECONDS, |
1470 |
new ArrayBlockingQueue<Runnable>(10)); |
1471 |
try (PoolCleaner cleaner = cleaner(e)) { |
1472 |
try { |
1473 |
e.invokeAny(null); |
1474 |
shouldThrow(); |
1475 |
} catch (NullPointerException success) {} |
1476 |
} |
1477 |
} |
1478 |
|
1479 |
/** |
1480 |
* invokeAny(empty collection) throws IAE |
1481 |
*/ |
1482 |
public void testInvokeAny2() throws Exception { |
1483 |
final ExecutorService e = |
1484 |
new CustomTPE(2, 2, |
1485 |
LONG_DELAY_MS, MILLISECONDS, |
1486 |
new ArrayBlockingQueue<Runnable>(10)); |
1487 |
try (PoolCleaner cleaner = cleaner(e)) { |
1488 |
try { |
1489 |
e.invokeAny(new ArrayList<Callable<String>>()); |
1490 |
shouldThrow(); |
1491 |
} catch (IllegalArgumentException success) {} |
1492 |
} |
1493 |
} |
1494 |
|
1495 |
/** |
1496 |
* invokeAny(c) throws NPE if c has null elements |
1497 |
*/ |
1498 |
public void testInvokeAny3() throws Exception { |
1499 |
CountDownLatch latch = new CountDownLatch(1); |
1500 |
final ExecutorService e = |
1501 |
new CustomTPE(2, 2, |
1502 |
LONG_DELAY_MS, MILLISECONDS, |
1503 |
new ArrayBlockingQueue<Runnable>(10)); |
1504 |
try (PoolCleaner cleaner = cleaner(e)) { |
1505 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1506 |
l.add(latchAwaitingStringTask(latch)); |
1507 |
l.add(null); |
1508 |
try { |
1509 |
e.invokeAny(l); |
1510 |
shouldThrow(); |
1511 |
} catch (NullPointerException success) {} |
1512 |
latch.countDown(); |
1513 |
} |
1514 |
} |
1515 |
|
1516 |
/** |
1517 |
* invokeAny(c) throws ExecutionException if no task completes |
1518 |
*/ |
1519 |
public void testInvokeAny4() throws Exception { |
1520 |
final ExecutorService e = |
1521 |
new CustomTPE(2, 2, |
1522 |
LONG_DELAY_MS, MILLISECONDS, |
1523 |
new ArrayBlockingQueue<Runnable>(10)); |
1524 |
try (PoolCleaner cleaner = cleaner(e)) { |
1525 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1526 |
l.add(new NPETask()); |
1527 |
try { |
1528 |
e.invokeAny(l); |
1529 |
shouldThrow(); |
1530 |
} catch (ExecutionException success) { |
1531 |
assertTrue(success.getCause() instanceof NullPointerException); |
1532 |
} |
1533 |
} |
1534 |
} |
1535 |
|
1536 |
/** |
1537 |
* invokeAny(c) returns result of some task |
1538 |
*/ |
1539 |
public void testInvokeAny5() throws Exception { |
1540 |
final ExecutorService e = |
1541 |
new CustomTPE(2, 2, |
1542 |
LONG_DELAY_MS, MILLISECONDS, |
1543 |
new ArrayBlockingQueue<Runnable>(10)); |
1544 |
try (PoolCleaner cleaner = cleaner(e)) { |
1545 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1546 |
l.add(new StringTask()); |
1547 |
l.add(new StringTask()); |
1548 |
String result = e.invokeAny(l); |
1549 |
assertSame(TEST_STRING, result); |
1550 |
} |
1551 |
} |
1552 |
|
1553 |
/** |
1554 |
* invokeAll(null) throws NPE |
1555 |
*/ |
1556 |
public void testInvokeAll1() throws Exception { |
1557 |
final ExecutorService e = |
1558 |
new CustomTPE(2, 2, |
1559 |
LONG_DELAY_MS, MILLISECONDS, |
1560 |
new ArrayBlockingQueue<Runnable>(10)); |
1561 |
try (PoolCleaner cleaner = cleaner(e)) { |
1562 |
try { |
1563 |
e.invokeAll(null); |
1564 |
shouldThrow(); |
1565 |
} catch (NullPointerException success) {} |
1566 |
} |
1567 |
} |
1568 |
|
1569 |
/** |
1570 |
* invokeAll(empty collection) returns empty collection |
1571 |
*/ |
1572 |
public void testInvokeAll2() throws Exception { |
1573 |
final ExecutorService e = |
1574 |
new CustomTPE(2, 2, |
1575 |
LONG_DELAY_MS, MILLISECONDS, |
1576 |
new ArrayBlockingQueue<Runnable>(10)); |
1577 |
try (PoolCleaner cleaner = cleaner(e)) { |
1578 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>()); |
1579 |
assertTrue(r.isEmpty()); |
1580 |
} |
1581 |
} |
1582 |
|
1583 |
/** |
1584 |
* invokeAll(c) throws NPE if c has null elements |
1585 |
*/ |
1586 |
public void testInvokeAll3() throws Exception { |
1587 |
final ExecutorService e = |
1588 |
new CustomTPE(2, 2, |
1589 |
LONG_DELAY_MS, MILLISECONDS, |
1590 |
new ArrayBlockingQueue<Runnable>(10)); |
1591 |
try (PoolCleaner cleaner = cleaner(e)) { |
1592 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1593 |
l.add(new StringTask()); |
1594 |
l.add(null); |
1595 |
try { |
1596 |
e.invokeAll(l); |
1597 |
shouldThrow(); |
1598 |
} catch (NullPointerException success) {} |
1599 |
} |
1600 |
} |
1601 |
|
1602 |
/** |
1603 |
* get of element of invokeAll(c) throws exception on failed task |
1604 |
*/ |
1605 |
public void testInvokeAll4() throws Exception { |
1606 |
final ExecutorService e = |
1607 |
new CustomTPE(2, 2, |
1608 |
LONG_DELAY_MS, MILLISECONDS, |
1609 |
new ArrayBlockingQueue<Runnable>(10)); |
1610 |
try (PoolCleaner cleaner = cleaner(e)) { |
1611 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1612 |
l.add(new NPETask()); |
1613 |
List<Future<String>> futures = e.invokeAll(l); |
1614 |
assertEquals(1, futures.size()); |
1615 |
try { |
1616 |
futures.get(0).get(); |
1617 |
shouldThrow(); |
1618 |
} catch (ExecutionException success) { |
1619 |
assertTrue(success.getCause() instanceof NullPointerException); |
1620 |
} |
1621 |
} |
1622 |
} |
1623 |
|
1624 |
/** |
1625 |
* invokeAll(c) returns results of all completed tasks |
1626 |
*/ |
1627 |
public void testInvokeAll5() throws Exception { |
1628 |
final ExecutorService e = |
1629 |
new CustomTPE(2, 2, |
1630 |
LONG_DELAY_MS, MILLISECONDS, |
1631 |
new ArrayBlockingQueue<Runnable>(10)); |
1632 |
try (PoolCleaner cleaner = cleaner(e)) { |
1633 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1634 |
l.add(new StringTask()); |
1635 |
l.add(new StringTask()); |
1636 |
List<Future<String>> futures = e.invokeAll(l); |
1637 |
assertEquals(2, futures.size()); |
1638 |
for (Future<String> future : futures) |
1639 |
assertSame(TEST_STRING, future.get()); |
1640 |
} |
1641 |
} |
1642 |
|
1643 |
/** |
1644 |
* timed invokeAny(null) throws NPE |
1645 |
*/ |
1646 |
public void testTimedInvokeAny1() throws Exception { |
1647 |
final ExecutorService e = |
1648 |
new CustomTPE(2, 2, |
1649 |
LONG_DELAY_MS, MILLISECONDS, |
1650 |
new ArrayBlockingQueue<Runnable>(10)); |
1651 |
try (PoolCleaner cleaner = cleaner(e)) { |
1652 |
try { |
1653 |
e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1654 |
shouldThrow(); |
1655 |
} catch (NullPointerException success) {} |
1656 |
} |
1657 |
} |
1658 |
|
1659 |
/** |
1660 |
* timed invokeAny(,,null) throws NPE |
1661 |
*/ |
1662 |
public void testTimedInvokeAnyNullTimeUnit() throws Exception { |
1663 |
final ExecutorService e = |
1664 |
new CustomTPE(2, 2, |
1665 |
LONG_DELAY_MS, MILLISECONDS, |
1666 |
new ArrayBlockingQueue<Runnable>(10)); |
1667 |
try (PoolCleaner cleaner = cleaner(e)) { |
1668 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1669 |
l.add(new StringTask()); |
1670 |
try { |
1671 |
e.invokeAny(l, MEDIUM_DELAY_MS, null); |
1672 |
shouldThrow(); |
1673 |
} catch (NullPointerException success) {} |
1674 |
} |
1675 |
} |
1676 |
|
1677 |
/** |
1678 |
* timed invokeAny(empty collection) throws IAE |
1679 |
*/ |
1680 |
public void testTimedInvokeAny2() throws Exception { |
1681 |
final ExecutorService e = |
1682 |
new CustomTPE(2, 2, |
1683 |
LONG_DELAY_MS, MILLISECONDS, |
1684 |
new ArrayBlockingQueue<Runnable>(10)); |
1685 |
try (PoolCleaner cleaner = cleaner(e)) { |
1686 |
try { |
1687 |
e.invokeAny(new ArrayList<Callable<String>>(), |
1688 |
MEDIUM_DELAY_MS, MILLISECONDS); |
1689 |
shouldThrow(); |
1690 |
} catch (IllegalArgumentException success) {} |
1691 |
} |
1692 |
} |
1693 |
|
1694 |
/** |
1695 |
* timed invokeAny(c) throws NPE if c has null elements |
1696 |
*/ |
1697 |
public void testTimedInvokeAny3() throws Exception { |
1698 |
CountDownLatch latch = new CountDownLatch(1); |
1699 |
final ExecutorService e = |
1700 |
new CustomTPE(2, 2, |
1701 |
LONG_DELAY_MS, MILLISECONDS, |
1702 |
new ArrayBlockingQueue<Runnable>(10)); |
1703 |
try (PoolCleaner cleaner = cleaner(e)) { |
1704 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1705 |
l.add(latchAwaitingStringTask(latch)); |
1706 |
l.add(null); |
1707 |
try { |
1708 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1709 |
shouldThrow(); |
1710 |
} catch (NullPointerException success) {} |
1711 |
latch.countDown(); |
1712 |
} |
1713 |
} |
1714 |
|
1715 |
/** |
1716 |
* timed invokeAny(c) throws ExecutionException if no task completes |
1717 |
*/ |
1718 |
public void testTimedInvokeAny4() throws Exception { |
1719 |
final ExecutorService e = |
1720 |
new CustomTPE(2, 2, |
1721 |
LONG_DELAY_MS, MILLISECONDS, |
1722 |
new ArrayBlockingQueue<Runnable>(10)); |
1723 |
try (PoolCleaner cleaner = cleaner(e)) { |
1724 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1725 |
l.add(new NPETask()); |
1726 |
try { |
1727 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1728 |
shouldThrow(); |
1729 |
} catch (ExecutionException success) { |
1730 |
assertTrue(success.getCause() instanceof NullPointerException); |
1731 |
} |
1732 |
} |
1733 |
} |
1734 |
|
1735 |
/** |
1736 |
* timed invokeAny(c) returns result of some task |
1737 |
*/ |
1738 |
public void testTimedInvokeAny5() throws Exception { |
1739 |
final ExecutorService e = |
1740 |
new CustomTPE(2, 2, |
1741 |
LONG_DELAY_MS, MILLISECONDS, |
1742 |
new ArrayBlockingQueue<Runnable>(10)); |
1743 |
try (PoolCleaner cleaner = cleaner(e)) { |
1744 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1745 |
l.add(new StringTask()); |
1746 |
l.add(new StringTask()); |
1747 |
String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1748 |
assertSame(TEST_STRING, result); |
1749 |
} |
1750 |
} |
1751 |
|
1752 |
/** |
1753 |
* timed invokeAll(null) throws NPE |
1754 |
*/ |
1755 |
public void testTimedInvokeAll1() throws Exception { |
1756 |
final ExecutorService e = |
1757 |
new CustomTPE(2, 2, |
1758 |
LONG_DELAY_MS, MILLISECONDS, |
1759 |
new ArrayBlockingQueue<Runnable>(10)); |
1760 |
try (PoolCleaner cleaner = cleaner(e)) { |
1761 |
try { |
1762 |
e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS); |
1763 |
shouldThrow(); |
1764 |
} catch (NullPointerException success) {} |
1765 |
} |
1766 |
} |
1767 |
|
1768 |
/** |
1769 |
* timed invokeAll(,,null) throws NPE |
1770 |
*/ |
1771 |
public void testTimedInvokeAllNullTimeUnit() throws Exception { |
1772 |
final ExecutorService e = |
1773 |
new CustomTPE(2, 2, |
1774 |
LONG_DELAY_MS, MILLISECONDS, |
1775 |
new ArrayBlockingQueue<Runnable>(10)); |
1776 |
try (PoolCleaner cleaner = cleaner(e)) { |
1777 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1778 |
l.add(new StringTask()); |
1779 |
try { |
1780 |
e.invokeAll(l, MEDIUM_DELAY_MS, null); |
1781 |
shouldThrow(); |
1782 |
} catch (NullPointerException success) {} |
1783 |
} |
1784 |
} |
1785 |
|
1786 |
/** |
1787 |
* timed invokeAll(empty collection) returns empty collection |
1788 |
*/ |
1789 |
public void testTimedInvokeAll2() throws Exception { |
1790 |
final ExecutorService e = |
1791 |
new CustomTPE(2, 2, |
1792 |
LONG_DELAY_MS, MILLISECONDS, |
1793 |
new ArrayBlockingQueue<Runnable>(10)); |
1794 |
try (PoolCleaner cleaner = cleaner(e)) { |
1795 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), |
1796 |
MEDIUM_DELAY_MS, MILLISECONDS); |
1797 |
assertTrue(r.isEmpty()); |
1798 |
} |
1799 |
} |
1800 |
|
1801 |
/** |
1802 |
* timed invokeAll(c) throws NPE if c has null elements |
1803 |
*/ |
1804 |
public void testTimedInvokeAll3() throws Exception { |
1805 |
final ExecutorService e = |
1806 |
new CustomTPE(2, 2, |
1807 |
LONG_DELAY_MS, MILLISECONDS, |
1808 |
new ArrayBlockingQueue<Runnable>(10)); |
1809 |
try (PoolCleaner cleaner = cleaner(e)) { |
1810 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1811 |
l.add(new StringTask()); |
1812 |
l.add(null); |
1813 |
try { |
1814 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1815 |
shouldThrow(); |
1816 |
} catch (NullPointerException success) {} |
1817 |
} |
1818 |
} |
1819 |
|
1820 |
/** |
1821 |
* get of element of invokeAll(c) throws exception on failed task |
1822 |
*/ |
1823 |
public void testTimedInvokeAll4() throws Exception { |
1824 |
final ExecutorService e = |
1825 |
new CustomTPE(2, 2, |
1826 |
LONG_DELAY_MS, MILLISECONDS, |
1827 |
new ArrayBlockingQueue<Runnable>(10)); |
1828 |
try (PoolCleaner cleaner = cleaner(e)) { |
1829 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1830 |
l.add(new NPETask()); |
1831 |
List<Future<String>> futures = |
1832 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1833 |
assertEquals(1, futures.size()); |
1834 |
try { |
1835 |
futures.get(0).get(); |
1836 |
shouldThrow(); |
1837 |
} catch (ExecutionException success) { |
1838 |
assertTrue(success.getCause() instanceof NullPointerException); |
1839 |
} |
1840 |
} |
1841 |
} |
1842 |
|
1843 |
/** |
1844 |
* timed invokeAll(c) returns results of all completed tasks |
1845 |
*/ |
1846 |
public void testTimedInvokeAll5() throws Exception { |
1847 |
final ExecutorService e = |
1848 |
new CustomTPE(2, 2, |
1849 |
LONG_DELAY_MS, MILLISECONDS, |
1850 |
new ArrayBlockingQueue<Runnable>(10)); |
1851 |
try (PoolCleaner cleaner = cleaner(e)) { |
1852 |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
1853 |
l.add(new StringTask()); |
1854 |
l.add(new StringTask()); |
1855 |
List<Future<String>> futures = |
1856 |
e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS); |
1857 |
assertEquals(2, futures.size()); |
1858 |
for (Future<String> future : futures) |
1859 |
assertSame(TEST_STRING, future.get()); |
1860 |
} |
1861 |
} |
1862 |
|
1863 |
/** |
1864 |
* timed invokeAll(c) cancels tasks not completed by timeout |
1865 |
*/ |
1866 |
public void testTimedInvokeAll6() throws Exception { |
1867 |
final ExecutorService e = |
1868 |
new CustomTPE(2, 2, |
1869 |
LONG_DELAY_MS, MILLISECONDS, |
1870 |
new ArrayBlockingQueue<Runnable>(10)); |
1871 |
try (PoolCleaner cleaner = cleaner(e)) { |
1872 |
for (long timeout = timeoutMillis();;) { |
1873 |
List<Callable<String>> tasks = new ArrayList<>(); |
1874 |
tasks.add(new StringTask("0")); |
1875 |
tasks.add(Executors.callable(new LongPossiblyInterruptedRunnable(), TEST_STRING)); |
1876 |
tasks.add(new StringTask("2")); |
1877 |
long startTime = System.nanoTime(); |
1878 |
List<Future<String>> futures = |
1879 |
e.invokeAll(tasks, timeout, MILLISECONDS); |
1880 |
assertEquals(tasks.size(), futures.size()); |
1881 |
assertTrue(millisElapsedSince(startTime) >= timeout); |
1882 |
for (Future future : futures) |
1883 |
assertTrue(future.isDone()); |
1884 |
assertTrue(futures.get(1).isCancelled()); |
1885 |
try { |
1886 |
assertEquals("0", futures.get(0).get()); |
1887 |
assertEquals("2", futures.get(2).get()); |
1888 |
break; |
1889 |
} catch (CancellationException retryWithLongerTimeout) { |
1890 |
timeout *= 2; |
1891 |
if (timeout >= LONG_DELAY_MS / 2) |
1892 |
fail("expected exactly one task to be cancelled"); |
1893 |
} |
1894 |
} |
1895 |
} |
1896 |
} |
1897 |
|
1898 |
/** |
1899 |
* Execution continues if there is at least one thread even if |
1900 |
* thread factory fails to create more |
1901 |
*/ |
1902 |
public void testFailingThreadFactory() throws InterruptedException { |
1903 |
final ExecutorService e = |
1904 |
new CustomTPE(100, 100, |
1905 |
LONG_DELAY_MS, MILLISECONDS, |
1906 |
new LinkedBlockingQueue<Runnable>(), |
1907 |
new FailingThreadFactory()); |
1908 |
try (PoolCleaner cleaner = cleaner(e)) { |
1909 |
final int TASKS = 100; |
1910 |
final CountDownLatch done = new CountDownLatch(TASKS); |
1911 |
for (int k = 0; k < TASKS; ++k) |
1912 |
e.execute(new CheckedRunnable() { |
1913 |
public void realRun() { |
1914 |
done.countDown(); |
1915 |
}}); |
1916 |
assertTrue(done.await(LONG_DELAY_MS, MILLISECONDS)); |
1917 |
} |
1918 |
} |
1919 |
|
1920 |
/** |
1921 |
* allowsCoreThreadTimeOut is by default false. |
1922 |
*/ |
1923 |
public void testAllowsCoreThreadTimeOut() { |
1924 |
final ThreadPoolExecutor p = |
1925 |
new CustomTPE(2, 2, |
1926 |
1000, MILLISECONDS, |
1927 |
new ArrayBlockingQueue<Runnable>(10)); |
1928 |
try (PoolCleaner cleaner = cleaner(p)) { |
1929 |
assertFalse(p.allowsCoreThreadTimeOut()); |
1930 |
} |
1931 |
} |
1932 |
|
1933 |
/** |
1934 |
* allowCoreThreadTimeOut(true) causes idle threads to time out |
1935 |
*/ |
1936 |
public void testAllowCoreThreadTimeOut_true() throws Exception { |
1937 |
long keepAliveTime = timeoutMillis(); |
1938 |
final ThreadPoolExecutor p = |
1939 |
new CustomTPE(2, 10, |
1940 |
keepAliveTime, MILLISECONDS, |
1941 |
new ArrayBlockingQueue<Runnable>(10)); |
1942 |
try (PoolCleaner cleaner = cleaner(p)) { |
1943 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
1944 |
p.allowCoreThreadTimeOut(true); |
1945 |
p.execute(new CheckedRunnable() { |
1946 |
public void realRun() { |
1947 |
threadStarted.countDown(); |
1948 |
assertEquals(1, p.getPoolSize()); |
1949 |
}}); |
1950 |
await(threadStarted); |
1951 |
delay(keepAliveTime); |
1952 |
long startTime = System.nanoTime(); |
1953 |
while (p.getPoolSize() > 0 |
1954 |
&& millisElapsedSince(startTime) < LONG_DELAY_MS) |
1955 |
Thread.yield(); |
1956 |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1957 |
assertEquals(0, p.getPoolSize()); |
1958 |
} |
1959 |
} |
1960 |
|
1961 |
/** |
1962 |
* allowCoreThreadTimeOut(false) causes idle threads not to time out |
1963 |
*/ |
1964 |
public void testAllowCoreThreadTimeOut_false() throws Exception { |
1965 |
long keepAliveTime = timeoutMillis(); |
1966 |
final ThreadPoolExecutor p = |
1967 |
new CustomTPE(2, 10, |
1968 |
keepAliveTime, MILLISECONDS, |
1969 |
new ArrayBlockingQueue<Runnable>(10)); |
1970 |
try (PoolCleaner cleaner = cleaner(p)) { |
1971 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
1972 |
p.allowCoreThreadTimeOut(false); |
1973 |
p.execute(new CheckedRunnable() { |
1974 |
public void realRun() throws InterruptedException { |
1975 |
threadStarted.countDown(); |
1976 |
assertTrue(p.getPoolSize() >= 1); |
1977 |
}}); |
1978 |
delay(2 * keepAliveTime); |
1979 |
assertTrue(p.getPoolSize() >= 1); |
1980 |
} |
1981 |
} |
1982 |
|
1983 |
/** |
1984 |
* get(cancelled task) throws CancellationException |
1985 |
* (in part, a test of CustomTPE itself) |
1986 |
*/ |
1987 |
public void testGet_cancelled() throws Exception { |
1988 |
final ExecutorService e = |
1989 |
new CustomTPE(1, 1, |
1990 |
LONG_DELAY_MS, MILLISECONDS, |
1991 |
new LinkedBlockingQueue<Runnable>()); |
1992 |
try (PoolCleaner cleaner = cleaner(e)) { |
1993 |
final CountDownLatch blockerStarted = new CountDownLatch(1); |
1994 |
final CountDownLatch done = new CountDownLatch(1); |
1995 |
final List<Future<?>> futures = new ArrayList<>(); |
1996 |
for (int i = 0; i < 2; i++) { |
1997 |
Runnable r = new CheckedRunnable() { public void realRun() |
1998 |
throws Throwable { |
1999 |
blockerStarted.countDown(); |
2000 |
assertTrue(done.await(2 * LONG_DELAY_MS, MILLISECONDS)); |
2001 |
}}; |
2002 |
futures.add(e.submit(r)); |
2003 |
} |
2004 |
assertTrue(blockerStarted.await(LONG_DELAY_MS, MILLISECONDS)); |
2005 |
for (Future<?> future : futures) future.cancel(false); |
2006 |
for (Future<?> future : futures) { |
2007 |
try { |
2008 |
future.get(); |
2009 |
shouldThrow(); |
2010 |
} catch (CancellationException success) {} |
2011 |
try { |
2012 |
future.get(LONG_DELAY_MS, MILLISECONDS); |
2013 |
shouldThrow(); |
2014 |
} catch (CancellationException success) {} |
2015 |
assertTrue(future.isCancelled()); |
2016 |
assertTrue(future.isDone()); |
2017 |
} |
2018 |
done.countDown(); |
2019 |
} |
2020 |
} |
2021 |
|
2022 |
} |