public function testSubscribe()
{
$app = $this->getApp();
$ext = new NormalExtension();
$ext->setContainer($app);
$ext->boot($app);
$listeners = $app['dispatcher']->getListeners('dropbear.sighting');
$this->assertInstanceOf('Bolt\\Tests\\Extension\\Mock\\NormalExtension', $listeners[0][0]);
$this->setExpectedException('RuntimeException', 'Drop Bear Alert!');
$app['dispatcher']->dispatch('dropbear.sighting');
}