@Test(groups = {"ueber", "performance"})
public void threadSafeTest() throws Exception {
final MessageSenderManager msm = new MessageSenderManager();
msm.setSenderPoolSize(SENDER_COUNT);
msm.setSenderClass(SENDER_CLASS_NAME);
msm.init();
final Map<Runnable, Throwable> threads = new HashMap<Runnable, Throwable>();
final ExecutorService es = Executors.newFixedThreadPool(THREAD_COUNT);
for (int i = 0; i < SENDER_TASK_COUNT; i++) {
final Runnable senderTask = new SenderTask(msm, threads);
threads.put(senderTask, null);
es.submit(senderTask);
}
es.shutdown();
es.awaitTermination(
(long) (SENDER_TASK_COUNT * THREAD_SLEEP_MILLIS * 1.2), TimeUnit.MILLISECONDS);
assertTrue(es.isTerminated());
assertTrue(es.isShutdown());
final Iterator<Runnable> it = threads.keySet().iterator();
while (it.hasNext()) {
final Throwable t = threads.get(it.next());
if (t != null) {
fail("One of the threads threw following exception: " + t.getMessage());
}
}
msm.close();
}
@Override
public void run() {
try {
final MessageSender sender = msm.acquireSender();
Thread.sleep(rnd.nextInt(THREAD_SLEEP_MILLIS));
msm.releaseSender(sender);
counter.decrementAndGet();
} catch (final Throwable t) {
threads.put(Thread.currentThread(), t);
}
}
@Test
public void messageSenderManagerTest() throws Exception {
final MessageSenderManager msm = new MessageSenderManager();
msm.setSenderPoolSize(SENDER_COUNT);
msm.setSenderClass(SENDER_CLASS_NAME);
msm.init();
assertTrue(msm.availableSenderCount() == SENDER_COUNT);
final MessageSender[] senders = new MessageSender[SENDER_COUNT];
int i = 0;
final int n = 5;
for (; i < n; i++) {
senders[i] = msm.acquireSender();
}
assertNotNull(senders[0]);
assertTrue(msm.availableSenderCount() == (SENDER_COUNT - n));
for (i = 0; i < n; i++) {
msm.releaseSender(senders[i]);
}
assertTrue(msm.availableSenderCount() == SENDER_COUNT);
for (i = 0; i < SENDER_COUNT; i++) {
senders[i] = msm.acquireSender();
}
assertTrue(
senders[0] instanceof DummySender,
"Sender is an instance of "
+ senders[0].getClass().getName()
+ ". It should be instance of "
+ SENDER_CLASS_NAME);
assertTrue(msm.availableSenderCount() == 0);
try {
msm.acquireSender();
} catch (final PerfCakeException te) {
assertTrue(te.getMessage().equals("MessageSender pool is empty."));
}
msm.releaseAllSenders();
assertTrue(msm.availableSenderCount() == SENDER_COUNT);
msm.close();
}