/**
  * Load fixtures
  *
  * @param ObjectManager $manager Manager
  */
 public function load(ObjectManager $manager)
 {
     $user1 = new User();
     $user1->setUsername('user_1');
     $user1->setEmail('*****@*****.**');
     $user1->setPlainPassword('user_1');
     $user1->setGithubId('some_id');
     $manager->persist($user1);
     $manager->flush();
     $user2 = new User();
     $user2->setUsername('user_2');
     $user2->setPlainPassword('user_2');
     $user2->setGithubId('some_id');
     $user2->setEmail('*****@*****.**');
     $manager->persist($user2);
     $manager->flush();
     $user3 = new User();
     $user3->setUsername('user_3');
     $user3->setPlainPassword('user_3');
     $user3->setGithubId('some_id');
     $user3->setEmail('*****@*****.**');
     $manager->persist($user3);
     $manager->flush();
     $this->addReference('user_1', $user1);
     $this->addReference('user_2', $user2);
     $this->addReference('user_3', $user3);
 }