symfony
diff --git a/‎testing/http_authentication.rst
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+19Lines changed: 19 additions & 0 deletions b/‎testing/http_authentication.rst
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+19Lines changed: 19 additions & 0 deletions
@@ -124,3 +124,22 @@ needs::
             $this->client->getCookieJar()->set($cookie);
         }
     }
+
+If your setup contains multiple firewalls sharing the same firewall context, you need to generate the
+*authentication token* by using one of the firewall names as provider key and set the security session
+using the firewall context name::
+
+        private function logIn()
+        {
+            $session = $this->client->getContainer()->get('session');
+
+            $firewallName = 'secure_area';
+            $firewallContext = 'firewall_context';
+
+            $token = new UsernamePasswordToken('admin', null, $firewallName, array('ROLE_ADMIN'));
+            $session->set('_security_'.$firewallContext, serialize($token));
+            $session->save();
+
+            $cookie = new Cookie($session->getName(), $session->getId());
+            $this->client->getCookieJar()->set($cookie);
+        }