@Test(timeout = 10000)
public void shutdownShouldNotLeadToThreadInitialization() throws InterruptedException {
DaemonThreadFactory factory = new DaemonThreadFactory("42");
util.setThreadFactory(factory);
util.shutdownBackgroundExecutor();
assertEquals(0, factory.getCreatedThreads());
}
@Test(timeout = 10000)
public void shouldApplyThreadFactory() throws InterruptedException {
ThreadFactory factory = new DaemonThreadFactory("42");
util.setThreadFactory(factory);
Executor executor = util.getBackgroundExecutor();
CountDownLatch latch = new CountDownLatch(1);
AtomicReference<String> threadName = new AtomicReference<>();
executor.execute(
() -> {
threadName.set(Thread.currentThread().getName());
latch.countDown();
});
latch.await();
assertEquals("42", threadName.get());
}
@Test(expected = IllegalStateException.class)
public void shouldDisallowReplaceThreadFactoryWhenExecutorAlreadyCreated() {
util.getBackgroundExecutor();
util.setThreadFactory(new DaemonThreadFactory(""));
}
