@Test
public void testInvokeAllTimeoutCancelled() throws Exception {
ExecutorService executor = createSingleNodeExecutorService("testInvokeAll");
assertFalse(executor.isShutdown());
// Only one task
ArrayList<Callable<Boolean>> tasks = new ArrayList<Callable<Boolean>>();
tasks.add(new CancellationAwareTask(0));
List<Future<Boolean>> futures = executor.invokeAll(tasks, 5, TimeUnit.SECONDS);
assertEquals(futures.size(), 1);
assertEquals(futures.get(0).get(), Boolean.TRUE);
// More tasks
tasks.clear();
for (int i = 0; i < COUNT; i++) {
tasks.add(new CancellationAwareTask(i < 2 ? 0 : 20000));
}
futures = executor.invokeAll(tasks, 5, TimeUnit.SECONDS);
assertEquals(futures.size(), COUNT);
for (int i = 0; i < COUNT; i++) {
if (i < 2) {
assertEquals(futures.get(i).get(), Boolean.TRUE);
} else {
boolean excepted = false;
try {
futures.get(i).get();
} catch (CancellationException e) {
excepted = true;
}
assertTrue(excepted);
}
}
}
/** Shutting down the cluster should act as the ExecutorService shutdown */
@Test(expected = RejectedExecutionException.class)
public void testClusterShutdown() throws Exception {
ExecutorService executor = createSingleNodeExecutorService("testClusterShutdown");
shutdownNodeFactory();
Thread.sleep(2000);
assertNotNull(executor);
assertTrue(executor.isShutdown());
assertTrue(executor.isTerminated());
// New tasks must be rejected
Callable<String> task = new BasicTestTask();
executor.submit(task);
}
/** Shutdown-related method behaviour when the cluster is running */
@Test
public void testShutdownBehaviour() throws Exception {
ExecutorService executor = createSingleNodeExecutorService("testShutdownBehaviour");
// Fresh instance, is not shutting down
assertFalse(executor.isShutdown());
assertFalse(executor.isTerminated());
executor.shutdown();
assertTrue(executor.isShutdown());
assertTrue(executor.isTerminated());
// shutdownNow() should return an empty list and be ignored
List<Runnable> pending = executor.shutdownNow();
assertTrue(pending.isEmpty());
assertTrue(executor.isShutdown());
assertTrue(executor.isTerminated());
// awaitTermination() should return immediately false
try {
boolean terminated = executor.awaitTermination(60L, TimeUnit.SECONDS);
assertFalse(terminated);
} catch (InterruptedException ie) {
fail("InterruptedException");
}
assertTrue(executor.isShutdown());
assertTrue(executor.isTerminated());
}
@Test
public void testInvokeAllTimeoutSuccess() throws Exception {
ExecutorService executor = createSingleNodeExecutorService("testInvokeAll");
assertFalse(executor.isShutdown());
// Only one task
ArrayList<Callable<String>> tasks = new ArrayList<Callable<String>>();
tasks.add(new BasicTestTask());
List<Future<String>> futures = executor.invokeAll(tasks, 5, TimeUnit.SECONDS);
assertEquals(futures.size(), 1);
assertEquals(futures.get(0).get(), BasicTestTask.RESULT);
// More tasks
tasks.clear();
for (int i = 0; i < COUNT; i++) {
tasks.add(new BasicTestTask());
}
futures = executor.invokeAll(tasks, 5, TimeUnit.SECONDS);
assertEquals(futures.size(), COUNT);
for (int i = 0; i < COUNT; i++) {
assertEquals(futures.get(i).get(), BasicTestTask.RESULT);
}
}