public function testResetPrizeAndAttendees()
 {
     $event = new Event('test');
     $event->setPrizes(array('Prize'));
     $event->setAttendees(array('Daniel'));
     $this->assertEquals(1, $event->getNumberOfPrizes());
     $this->assertEquals(1, $event->getNumberOfAttendees());
     $event->clearAttendees();
     $event->clearPrizes();
     $this->assertEquals(0, $event->getNumberOfPrizes());
     $this->assertEquals(0, $event->getNumberOfAttendees());
 }