public function testAddAll()
 {
     $clients = [new Clients(5, 'New Client 1', new DateTime('now'), 0, [], 0), new Clients(6, 'New Client 2', new DateTime('now'), 0, [], 0)];
     $this->repository->addAll($clients);
     $this->assertNotNull($this->repository->find(new ObjectId(5)));
     $this->assertNotNull($this->repository->find(new ObjectId(6)));
 }