public function testListeners()
{
$meta = new ServiceMetadata('Service\\Test');
$this->assertEmpty($meta->getAllListeners());
$this->assertEmpty($meta->getListeners('event'));
$listeners = array('eventOne' => array('listenerOne'), 'eventTwo' => array('listenerOne', 'listenerTwo'));
$meta->setAllListeners($listeners);
$this->assertEquals($listeners, $meta->getAllListeners());
$this->assertEquals($listeners['eventOne'], $meta->getListeners('eventOne'));
$this->assertEquals($listeners['eventTwo'], $meta->getListeners('eventTwo'));
$eventTwoListeners = $listeners['eventTwo'];
$eventTwoListeners[] = 'listenerThree';
$meta->addListener('eventTwo', 'listenerThree');
$this->assertEquals($eventTwoListeners, $meta->getListeners('eventTwo'));
}
