public function testIndexAction()
{
$client = $this->createAuthenticatedClient();
$client->request('GET', '/admin/');
// required because test user does not exist otherwise
$userSetting = new UserSetting();
$userSetting->setKey('test');
$userSetting->setValue(json_encode(['key' => 'value']));
$userSetting->setUser($this->getTestUser());
$this->em->persist($userSetting);
$this->em->flush();
$client->request('GET', '/admin/');
$this->assertContains('"settings":{"test":{"key":"value"}}', $client->getResponse()->getContent());
}