public function testLogginIn()
{
$client = $this->getClient();
$client->followRedirects(true);
$crawler = $client->request('GET', '/admin/dashboard');
/** @var $super_admin \Application\Sonata\UserBundle\Entity\User */
$super_admin = $this->getReferenceRepository()->getReference('user.super_admin');
$data = array('_username' => $super_admin->getUsername(), '_password' => 'test');
$form = $crawler->selectButton('Login')->form();
$crawler = $client->submit($form, $data);
$this->assertGreaterThan(0, $crawler->filter('html:contains("Users")')->count());
}