public function testDelete()
{
$em = $this->em;
$announcement = new AdminAnnouncement();
$announcement->setTitle('Delete Title - phpunit');
$announcement->setContent('Delete Content - phpunit');
$em->persist($announcement);
$em->flush();
$id = $announcement->getId();
$this->logIn();
$client = $this->client;
$token = $this->generateToken('ojs_admin_announcement' . $id);
$client->request('DELETE', '/admin/announcement/' . $id . '/delete', array('_token' => $token));
$this->assertStatusCode(302, $client);
}