/*
* Written by Doug Lea with assistance from members of JCP JSR-166
* Expert Group and released to the public domain, as explained at
* http://creativecommons.org/licenses/publicdomain
* Other contributors include Andrew Wright, Jeffrey Hayes,
* Pat Fisher, Mike Judd.
*/
package tests.api.java.util.concurrent;
import junit.framework.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.concurrent.atomic.*;
public class ScheduledExecutorTest extends JSR166TestCase {
public static void main(String[] args) {
junit.textui.TestRunner.run (suite());
}
public static Test suite() {
return new TestSuite(ScheduledExecutorTest.class);
}
/**
* execute successfully executes a runnable
*/
public void testExecute() {
try {
TrackedShortRunnable runnable =new TrackedShortRunnable();
ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
p1.execute(runnable);
assertFalse(runnable.done);
Thread.sleep(SHORT_DELAY_MS);
try { p1.shutdown(); } catch(SecurityException ok) { return; }
try {
Thread.sleep(MEDIUM_DELAY_MS);
} catch(InterruptedException e){
unexpectedException();
}
assertTrue(runnable.done);
try { p1.shutdown(); } catch(SecurityException ok) { return; }
joinPool(p1);
}
catch(Exception e){
unexpectedException();
}
}
/**
* delayed schedule of callable successfully executes after delay
*/
public void testSchedule1() {
try {
TrackedCallable callable = new TrackedCallable();
ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
assertFalse(callable.done);
Thread.sleep(MEDIUM_DELAY_MS);
assertTrue(callable.done);
assertEquals(Boolean.TRUE, f.get());
try { p1.shutdown(); } catch(SecurityException ok) { return; }
joinPool(p1);
} catch(RejectedExecutionException e){}
catch(Exception e){
e.printStackTrace();
unexpectedException();
}
}
/**
* delayed schedule of runnable successfully executes after delay
*/
public void testSchedule3() {
try {
TrackedShortRunnable runnable = new TrackedShortRunnable();
ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
p1.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS);
Thread.sleep(SHORT_DELAY_MS);
assertFalse(runnable.done);
Thread.sleep(MEDIUM_DELAY_MS);
assertTrue(runnable.done);
try { p1.shutdown(); } catch(SecurityException ok) { return; }
joinPool(p1);
} catch(Exception e){
unexpectedException();
}
}
/**
* scheduleAtFixedRate executes runnable after given initial delay
*/
public void testSchedule4() {
try {
TrackedShortRunnable runnable = new TrackedShortRunnable();
ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
ScheduledFuture h = p1.scheduleAtFixedRate(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
assertFalse(runnable.done);
Thread.sleep(MEDIUM_DELAY_MS);
assertTrue(runnable.done);
h.cancel(true);
joinPool(p1);
} catch(Exception e){
unexpectedException();
}
}
static class RunnableCounter implements Runnable {
AtomicInteger count = new AtomicInteger(0);
public void run() { count.getAndIncrement(); }
}
/**
* scheduleWithFixedDelay executes runnable after given initial delay
*/
public void testSchedule5() {
try {
TrackedShortRunnable runnable = new TrackedShortRunnable();
ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
ScheduledFuture h = p1.scheduleWithFixedDelay(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
assertFalse(runnable.done);
Thread.sleep(MEDIUM_DELAY_MS);
assertTrue(runnable.done);
h.cancel(true);
joinPool(p1);
} catch(Exception e){
unexpectedException();
}
}
/**
* scheduleAtFixedRate executes series of tasks at given rate
*/
public void testFixedRateSequence() {
try {
ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
RunnableCounter counter = new RunnableCounter();
ScheduledFuture h =
p1.scheduleAtFixedRate(counter, 0, 1, TimeUnit.MILLISECONDS);
Thread.sleep(SMALL_DELAY_MS);
h.cancel(true);
int c = counter.count.get();
// By time scaling conventions, we must have at least
// an execution per SHORT delay, but no more than one SHORT more
assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
joinPool(p1);
} catch(Exception e){
unexpectedException();
}
}
/**
* scheduleWithFixedDelay executes series of tasks with given period
*/
public void testFixedDelaySequence() {
try {
ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
RunnableCounter counter = new RunnableCounter();
ScheduledFuture h =
p1.scheduleWithFixedDelay(counter, 0, 1, TimeUnit.MILLISECONDS);
Thread.sleep(SMALL_DELAY_MS);
h.cancel(true);
int c = counter.count.get();
assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
joinPool(p1);
} catch(Exception e){
unexpectedException();
}
}
/**
* execute (null) throws NPE
*/
public void testExecuteNull() {
ScheduledThreadPoolExecutor se = null;
try {
se = new ScheduledThreadPoolExecutor(1);
se.execute(null);
shouldThrow();
} catch(NullPointerException success){}
catch(Exception e){
unexpectedException();
}
joinPool(se);
}
/**
* schedule (null) throws NPE
*/
public void testScheduleNull() {
ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
try {
TrackedCallable callable = null;
Future f = se.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
shouldThrow();
} catch(NullPointerException success){}
catch(Exception e){
unexpectedException();
}
joinPool(se);
}
/**
* execute throws RejectedExecutionException if shutdown
*/
public void testSchedule1_RejectedExecutionException() {
ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
try {
se.shutdown();
se.schedule(new NoOpRunnable(),
MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
shouldThrow();
} catch(RejectedExecutionException success){
} catch (SecurityException ok) {
}
joinPool(se);
}
/**
* schedule throws RejectedExecutionException if shutdown
*/
public void testSchedule2_RejectedExecutionException() {
ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
try {
se.shutdown();
se.schedule(new NoOpCallable(),
MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
shouldThrow();
} catch(RejectedExecutionException success){
} catch (SecurityException ok) {
}
joinPool(se);
}
/**
* schedule callable throws RejectedExecutionException if shutdown
*/
public void testSchedule3_RejectedExecutionException() {
ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
try {
se.shutdown();
se.schedule(new NoOpCallable(),
MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
shouldThrow();
} catch(RejectedExecutionException success){
} catch (SecurityException ok) {
}
joinPool(se);
}
/**
* scheduleAtFixedRate throws RejectedExecutionException if shutdown
*/
public void testScheduleAtFixedRate1_RejectedExecutionException() {
ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
try {
se.shutdown();
se.scheduleAtFixedRate(new NoOpRunnable(),
MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
shouldThrow();
} catch(RejectedExecutionException success){
} catch (SecurityException ok) {
}
joinPool(se);
}
/**
* scheduleWithFixedDelay throws RejectedExecutionException if shutdown
*/
public void testScheduleWithFixedDelay1_RejectedExecutionException() {
ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
try {
se.shutdown();
se.scheduleWithFixedDelay(new NoOpRunnable(),
MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
shouldThrow();
} catch(RejectedExecutionException success){
} catch (SecurityException ok) {
}
joinPool(se);
}
/**
* getActiveCount increases but doesn't overestimate, when a
* thread becomes active
*/
public void testGetActiveCount() {
ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
assertEquals(0, p2.getActiveCount());
p2.execute(new SmallRunnable());
try {
Thread.sleep(SHORT_DELAY_MS);
} catch(Exception e){
unexpectedException();
}
assertEquals(1, p2.getActiveCount());
joinPool(p2);
}
/**
* getCompletedTaskCount increases, but doesn't overestimate,
* when tasks complete
*/
public void testGetCompletedTaskCount() {
ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
assertEquals(0, p2.getCompletedTaskCount());
p2.execute(new SmallRunnable());
try {
Thread.sleep(MEDIUM_DELAY_MS);
} catch(Exception e){
unexpectedException();
}
assertEquals(1, p2.getCompletedTaskCount());
joinPool(p2);
}
/**
* getCorePoolSize returns size given in constructor if not otherwise set
*/
public void testGetCorePoolSize() {
ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
assertEquals(1, p1.getCorePoolSize());
joinPool(p1);
}
/**
* getLargestPoolSize increases, but doesn't overestimate, when
* multiple threads active
*/
public void testGetLargestPoolSize() {
ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
assertEquals(0, p2.getLargestPoolSize());
p2.execute(new SmallRunnable());
p2.execute(new SmallRunnable());
try {
Thread.sleep(SHORT_DELAY_MS);
} catch(Exception e){
unexpectedException();
}
assertEquals(2, p2.getLargestPoolSize());
joinPool(p2);
}
/**
* getPoolSize increases, but doesn't overestimate, when threads
* become active
*/
public void testGetPoolSize() {
ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
assertEquals(0, p1.getPoolSize());
p1.execute(new SmallRunnable());
assertEquals(1, p1.getPoolSize());
joinPool(p1);
}
/**
* getTaskCount increases, but doesn't overestimate, when tasks
* submitted
*/
public void testGetTaskCount() {
ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
assertEquals(0, p1.getTaskCount());
for(int i = 0; i < 5; i++)
p1.execute(new SmallRunnable());
try {
Thread.sleep(SHORT_DELAY_MS);
} catch(Exception e){
unexpectedException();
}
assertEquals(5, p1.getTaskCount());
joinPool(p1);
}
/**
* getThreadFactory returns factory in constructor if not set
*/
public void testGetThreadFactory() {
ThreadFactory tf = new SimpleThreadFactory();
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, tf);
assertSame(tf, p.getThreadFactory());
joinPool(p);
}
/**
* setThreadFactory sets the thread factory returned by getThreadFactory
*/
public void testSetThreadFactory() {
ThreadFactory tf = new SimpleThreadFactory();
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
p.setThreadFactory(tf);
assertSame(tf, p.getThreadFactory());
joinPool(p);
}
/**
* setThreadFactory(null) throws NPE
*/
public void testSetThreadFactoryNull() {
ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
try {
p.setThreadFactory(null);
shouldThrow();
} catch (NullPointerException success) {
} finally {
joinPool(p);
}
}
/**
* is isShutDown is false before shutdown, true after
*/
public void testIsShutdown() {
ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
try {
assertFalse(p1.isShutdown());
}
finally {
try { p1.shutdown(); } catch(SecurityException ok) { return; }
}
assertTrue(p1.isShutdown());
}
/**
* isTerminated is false before termination, true after
*/
public void testIsTerminated() {
ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
try {
p1.execute(new SmallRunnable());
} finally {
try { p1.shutdown(); } catch(SecurityException ok) { return; }
}
try {
assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
assertTrue(p1.isTerminated());
} catch(Exception e){
unexpectedException();
}
}
/**
* isTerminating is not true when running or when terminated
*/
public void testIsTerminating() {
ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
assertFalse(p1.isTerminating());
try {
p1.execute(new SmallRunnable());
assertFalse(p1.isTerminating());
} finally {
try { p1.shutdown(); } catch(SecurityException ok) { return; }
}
try {
assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
assertTrue(p1.isTerminated());
assertFalse(p1.isTerminating());
} catch(Exception e){
unexpectedException();
}
}
/**
* getQueue returns the work queue, which contains queued tasks
*/
public void testGetQueue() {
ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
ScheduledFuture[] tasks = new ScheduledFuture[5];
for(int i = 0; i < 5; i++){
tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
}
try {
Thread.sleep(SHORT_DELAY_MS);
BlockingQueue<Runnable> q = p1.getQueue();
assertTrue(q.contains(tasks[4]));
assertFalse(q.contains(tasks[0]));
} catch(Exception e) {
unexpectedException();
} finally {
joinPool(p1);
}
}
/**
* remove(task) removes queued task, and fails to remove active task
*/
public void testRemove() {
ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
ScheduledFuture[] tasks = new ScheduledFuture[5];
for(int i = 0; i < 5; i++){
tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
}
try {
Thread.sleep(SHORT_DELAY_MS);
BlockingQueue<Runnable> q = p1.getQueue();
assertFalse(p1.remove((Runnable)tasks[0]));
assertTrue(q.contains((Runnable)tasks[4]));
assertTrue(q.contains((Runnable)tasks[3]));
assertTrue(p1.remove((Runnable)tasks[4]));
assertFalse(p1.remove((Runnable)tasks[4]));
assertFalse(q.contains((Runnable)tasks[4]));
assertTrue(q.contains((Runnable)tasks[3]));
assertTrue(p1.remove((Runnable)tasks[3]));
assertFalse(q.contains((Runnable)tasks[3]));
} catch(Exception e) {
unexpectedException();
} finally {
joinPool(p1);
}
}
/**
* purge removes cancelled tasks from the queue
*/
public void testPurge() {
ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
ScheduledFuture[] tasks = new ScheduledFuture[5];
for(int i = 0; i < 5; i++){
tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
}
try {
int max = 5;
if (tasks[4].cancel(true)) --max;
if (tasks[3].cancel(true)) --max;
// There must eventually be an interference-free point at
// which purge will not fail. (At worst, when queue is empty.)
int k;
for (k = 0; k < SMALL_DELAY_MS; ++k) {
p1.purge();
long count = p1.getTaskCount();
if (count >= 0 && count <= max)
break;
Thread.sleep(1);
}
assertTrue(k < SMALL_DELAY_MS);
} catch(Exception e) {
unexpectedException();
} finally {
joinPool(p1);
}
}
/**
* shutDownNow returns a list containing tasks that were not run
*/
public void testShutDownNow() {
ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
for(int i = 0; i < 5; i++)
p1.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
List l;
try {
l = p1.shutdownNow();
} catch (SecurityException ok) {
return;
}
assertTrue(p1.isShutdown());
assertTrue(l.size() > 0 && l.size() <= 5);
joinPool(p1);
}
/**
* In default setting, shutdown cancels periodic but not delayed
* tasks at shutdown
*/
public void testShutDown1() {
try {
ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
assertTrue(p1.getExecuteExistingDelayedTasksAfterShutdownPolicy());
assertFalse(p1.getContinueExistingPeriodicTasksAfterShutdownPolicy());
ScheduledFuture[] tasks = new ScheduledFuture[5];
for(int i = 0; i < 5; i++)
tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
try { p1.shutdown(); } catch(SecurityException ok) { return; }
BlockingQueue q = p1.getQueue();
for (Iterator it = q.iterator(); it.hasNext();) {
ScheduledFuture t = (ScheduledFuture)it.next();
assertFalse(t.isCancelled());
}
assertTrue(p1.isShutdown());
Thread.sleep(SMALL_DELAY_MS);
for (int i = 0; i < 5; ++i) {
assertTrue(tasks[i].isDone());
assertFalse(tasks[i].isCancelled());
}
}
catch(Exception ex) {
unexpectedException();
}
}
/**
* If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
* delayed tasks are cancelled at shutdown
*/
public void testShutDown2() {
try {
ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
p1.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
ScheduledFuture[] tasks = new ScheduledFuture[5];
for(int i = 0; i < 5; i++)
tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
try { p1.shutdown(); } catch(SecurityException ok) { return; }
assertTrue(p1.isShutdown());
BlockingQueue q = p1.getQueue();
assertTrue(q.isEmpty());
Thread.sleep(SMALL_DELAY_MS);
assertTrue(p1.isTerminated());
}
catch(Exception ex) {
unexpectedException();
}
}
/**
* If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
* periodic tasks are not cancelled at shutdown
*/
public void testShutDown3() {
try {
ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
ScheduledFuture task =
p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
try { p1.shutdown(); } catch(SecurityException ok) { return; }
assertTrue(p1.isShutdown());
BlockingQueue q = p1.getQueue();
assertTrue(q.isEmpty());
Thread.sleep(SHORT_DELAY_MS);
assertTrue(p1.isTerminated());
}
catch(Exception ex) {
unexpectedException();
}
}
/**
* if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
* periodic tasks are cancelled at shutdown
*/
public void testShutDown4() {
ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
try {
p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
ScheduledFuture task =
p1.scheduleAtFixedRate(new NoOpRunnable(), 1, 1, TimeUnit.MILLISECONDS);
assertFalse(task.isCancelled());
try { p1.shutdown(); } catch(SecurityException ok) { return; }
assertFalse(task.isCancelled());
assertFalse(p1.isTerminated());
assertTrue(p1.isShutdown());
Thread.sleep(SHORT_DELAY_MS);
assertFalse(task.isCancelled());
assertTrue(task.cancel(true));
assertTrue(task.isDone());
Thread.sleep(SHORT_DELAY_MS);
assertTrue(p1.isTerminated());
}
catch(Exception ex) {
unexpectedException();
}
finally {
joinPool(p1);
}
}
/**
* completed submit of callable returns result
*/
public void testSubmitCallable() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
Future<String> future = e.submit(new StringTask());
String result = future.get();
assertSame(TEST_STRING, result);
}
catch (ExecutionException ex) {
unexpectedException();
}
catch (InterruptedException ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* completed submit of runnable returns successfully
*/
public void testSubmitRunnable() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
Future<?> future = e.submit(new NoOpRunnable());
future.get();
assertTrue(future.isDone());
}
catch (ExecutionException ex) {
unexpectedException();
}
catch (InterruptedException ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* completed submit of (runnable, result) returns result
*/
public void testSubmitRunnable2() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
String result = future.get();
assertSame(TEST_STRING, result);
}
catch (ExecutionException ex) {
unexpectedException();
}
catch (InterruptedException ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* invokeAny(null) throws NPE
*/
public void testInvokeAny1() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
e.invokeAny(null);
} catch (NullPointerException success) {
} catch(Exception ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* invokeAny(empty collection) throws IAE
*/
public void testInvokeAny2() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
e.invokeAny(new ArrayList<Callable<String>>());
} catch (IllegalArgumentException success) {
} catch(Exception ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* invokeAny(c) throws NPE if c has null elements
*/
public void testInvokeAny3() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
l.add(new StringTask());
l.add(null);
e.invokeAny(l);
} catch (NullPointerException success) {
} catch(Exception ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* invokeAny(c) throws ExecutionException if no task completes
*/
public void testInvokeAny4() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
l.add(new NPETask());
e.invokeAny(l);
} catch (ExecutionException success) {
} catch(Exception ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* invokeAny(c) returns result of some task
*/
public void testInvokeAny5() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
l.add(new StringTask());
l.add(new StringTask());
String result = e.invokeAny(l);
assertSame(TEST_STRING, result);
} catch (ExecutionException success) {
} catch(Exception ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* invokeAll(null) throws NPE
*/
public void testInvokeAll1() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
e.invokeAll(null);
} catch (NullPointerException success) {
} catch(Exception ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* invokeAll(empty collection) returns empty collection
*/
public void testInvokeAll2() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
assertTrue(r.isEmpty());
} catch(Exception ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* invokeAll(c) throws NPE if c has null elements
*/
public void testInvokeAll3() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
l.add(new StringTask());
l.add(null);
e.invokeAll(l);
} catch (NullPointerException success) {
} catch(Exception ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* get of invokeAll(c) throws exception on failed task
*/
public void testInvokeAll4() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
l.add(new NPETask());
List<Future<String>> result = e.invokeAll(l);
assertEquals(1, result.size());
for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
it.next().get();
} catch(ExecutionException success) {
} catch(Exception ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* invokeAll(c) returns results of all completed tasks
*/
public void testInvokeAll5() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
l.add(new StringTask());
l.add(new StringTask());
List<Future<String>> result = e.invokeAll(l);
assertEquals(2, result.size());
for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
assertSame(TEST_STRING, it.next().get());
} catch (ExecutionException success) {
} catch(Exception ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* timed invokeAny(null) throws NPE
*/
public void testTimedInvokeAny1() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
e.invokeAny(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
} catch (NullPointerException success) {
} catch(Exception ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* timed invokeAny(,,null) throws NPE
*/
public void testTimedInvokeAnyNullTimeUnit() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
l.add(new StringTask());
e.invokeAny(l, MEDIUM_DELAY_MS, null);
} catch (NullPointerException success) {
} catch(Exception ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* timed invokeAny(empty collection) throws IAE
*/
public void testTimedInvokeAny2() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
} catch (IllegalArgumentException success) {
} catch(Exception ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* timed invokeAny(c) throws NPE if c has null elements
*/
public void testTimedInvokeAny3() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
l.add(new StringTask());
l.add(null);
e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
} catch (NullPointerException success) {
} catch(Exception ex) {
ex.printStackTrace();
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* timed invokeAny(c) throws ExecutionException if no task completes
*/
public void testTimedInvokeAny4() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
l.add(new NPETask());
e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
} catch(ExecutionException success) {
} catch(Exception ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* timed invokeAny(c) returns result of some task
*/
public void testTimedInvokeAny5() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
l.add(new StringTask());
l.add(new StringTask());
String result = e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
assertSame(TEST_STRING, result);
} catch (ExecutionException success) {
} catch(Exception ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* timed invokeAll(null) throws NPE
*/
public void testTimedInvokeAll1() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
e.invokeAll(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
} catch (NullPointerException success) {
} catch(Exception ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* timed invokeAll(,,null) throws NPE
*/
public void testTimedInvokeAllNullTimeUnit() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
l.add(new StringTask());
e.invokeAll(l, MEDIUM_DELAY_MS, null);
} catch (NullPointerException success) {
} catch(Exception ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* timed invokeAll(empty collection) returns empty collection
*/
public void testTimedInvokeAll2() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
assertTrue(r.isEmpty());
} catch(Exception ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* timed invokeAll(c) throws NPE if c has null elements
*/
public void testTimedInvokeAll3() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
l.add(new StringTask());
l.add(null);
e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
} catch (NullPointerException success) {
} catch(Exception ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* get of element of invokeAll(c) throws exception on failed task
*/
public void testTimedInvokeAll4() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
l.add(new NPETask());
List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
assertEquals(1, result.size());
for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
it.next().get();
} catch(ExecutionException success) {
} catch(Exception ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* timed invokeAll(c) returns results of all completed tasks
*/
public void testTimedInvokeAll5() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
l.add(new StringTask());
l.add(new StringTask());
List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
assertEquals(2, result.size());
for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
assertSame(TEST_STRING, it.next().get());
} catch (ExecutionException success) {
} catch(Exception ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
/**
* timed invokeAll(c) cancels tasks not completed by timeout
*/
public void testTimedInvokeAll6() {
ExecutorService e = new ScheduledThreadPoolExecutor(2);
try {
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
l.add(new StringTask());
l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
l.add(new StringTask());
List<Future<String>> result = e.invokeAll(l, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
assertEquals(3, result.size());
Iterator<Future<String>> it = result.iterator();
Future<String> f1 = it.next();
Future<String> f2 = it.next();
Future<String> f3 = it.next();
assertTrue(f1.isDone());
assertTrue(f2.isDone());
assertTrue(f3.isDone());
assertFalse(f1.isCancelled());
assertTrue(f2.isCancelled());
} catch(Exception ex) {
unexpectedException();
} finally {
joinPool(e);
}
}
}
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