public function testRelationshipEntityCanBeAdded()
{
$this->clearDb();
$person = new Person('ikwattro');
$movie = new Movie('Neo4j on the rocks');
$person->addRole($movie, ['Super Actor']);
$this->em->persist($person);
$this->em->flush();
$this->assertGraphExist('(p:Person {name:"ikwattro"})-[r:ACTED_IN {roles: ["Super Actor"]}]->(m:Movie {title:"Neo4j on the rocks"})');
}