symfony test - authenticated doesnt work on new request - symfony

Question

Good morning.
Tldr: I think that, I need for Symfony Test Client something similiar to js xhr settings: withcredentals:true.
Symfony 3.1. I have action in rest api controller:
/**
* #Rest\GET("/get-stuff")
* #Rest\View
* #Security("is_granted('IS_AUTHENTICATED_FULLY')")
*/
public function GetStuffAction($userId)
{
// get userId from session
$userId = $this->getUser()->getId();
$em = $this->getDoctrine()->getManager();
$Stuff = $em->getRepository('MyApiBundle:Stuff')->findBy(['user' => $userId]);
return $this->viewGroup($Stuff, ['stuff']);
}
And it does work correct.
Now I want Test, so I have :
class TestCase extends WebTestCase
{
public function testIndex()
{
$this->client = self::createClient();
$this->storage = new MockFileSessionStorage(__dir__.'/../../../../app/cache/test/sessions');
$this->session = new Session($this->storage);
$this->logIn($this->getUser(), new Response());
$this->client->request('GET', '/get-stuff');
$content = $this->client->getResponse()->getContent();
$this->assertEquals({"message":"Full authentication is required to access this resource.","code":0},$content);
}
public function logIn(User $user, Response $response)
{
$this->session->start();
$this->cookie = new Cookie('MOCKSESSID', $this->storage->getId());
$this->cookieJar = new CookieJar();
$this->cookieJar->set($this->cookie);
$this->token = new UsernamePasswordToken($user, 'user', 'main', $user->getRoles());
$this->session->set('_security_main', serialize($this->token));
$this->getSecurityManager()->loginUser(
$this->container->getParameter('fos_user.firewall_name'),
$user,
$response
);
$this->session->save();
}
}
And test for it gives me message: "Full authentication is required to access this resource". After method logIn() I can read session data which are connected with logged user.
How can I make to be logged during this part to not receive message about authentication?:
$this->client->request('GET', '/get-stuff');
$content = $this->client->getResponse()->getContent();
More details:
1. My test class extends WebTestCase.
2. My user is overwritten for FosUserBundle.
I suppose that is something like in javascript:
var xhr = new XMLHttpRequest();
xhr.withCredentials = true;
but I don't know what.
Thank you in advance for helping solve my problem!

Answer 1

Ok, I was good way to do this:
public function logIn(User $user) {
$session = $this->session;
$firewallContext = 'secured_area';
$token = new UsernamePasswordToken($user, 'user', 'main', $user->getRoles());
$session->set('_security_'.$firewallContext, serialize($token));
$session->save();
$cookie = new Cookie($session->getName(), $session->getId());
$this->client->getCookieJar()->set($cookie);
}