public function testIndex()
{
$this->logIn();
$client = $this->client;
$crawler = $client->request('GET', '/admin/settings/');
$this->assertStatusCode(200, $client);
$form = $crawler->filter('form[name=system_settings]')->form();
$form['system_settings[userRegistrationActive]'] = '1';
$form['system_settings[journalApplicationActive]'] = '1';
$form['system_settings[publisherApplicationActive]'] = '1';
$form['system_settings[articleSubmissionActive]'] = '1';
$crawler = $client->submit($form);
$this->assertEquals(1, $crawler->filter('.alert-success')->count());
}