public function instancesOfTheManagedTypeCanBeAddedAndRetrieved()
{
$this->superEntityRepository = $this->objectManager->get(Fixtures\SuperEntityRepository::class);
$superEntity = new Fixtures\SuperEntity();
$superEntity->setContent('this is the super entity');
$this->superEntityRepository->add($superEntity);
$this->persistenceManager->persistAll();
$superEntity = $this->superEntityRepository->findOneByContent('this is the super entity');
$this->assertEquals('this is the super entity', $superEntity->getContent());
}