Merge branch '2.1' into 2.2

* 2.1:
  added support for the X-Forwarded-For header (closes #6982, closes #7000)
  fixed the IP address in HttpCache when calling the backend
  [EventDispatcher] Added assertion.
  [EventDispathcer] Fix removeListener
  [DependencyInjection] Add clone for resources which were introduced in 2.1
  [DependencyInjection] Allow frozen containers to be dumped to graphviz
  Fix 'undefined index' error, when entering scope recursively
  [Security] fixed session creation on login (closes #7011)
  Add dot character `.` to legal mime subtype regular expression
  [HttpFoundation] fixed the creation of sub-requests under some circumstancies (closes #6923, closes #6936)

1 files changed, 19 insertions, 0 deletions

diff --git a/Tests/Http/Firewall/ContextListenerTest.php b/Tests/Http/Firewall/ContextListenerTest.php
index 2a8a28e..ffe6195 100644
--- a/Tests/Http/Firewall/ContextListenerTest.php
+++ b/Tests/Http/Firewall/ContextListenerTest.php
@@ -99,6 +99,25 @@ class ContextListenerTest extends \PHPUnit_Framework_TestCase
         $listener = new ContextListener($this->securityContext, array(), 'session');
         $listener->onKernelResponse($event);
 
+        $this->assertTrue($session->isStarted());
+    }
+
+    public function testOnKernelResponseWithoutSessionNorToken()
+    {
+        $request = new Request();
+        $session = new Session(new MockArraySessionStorage());
+        $request->setSession($session);
+
+        $event = new FilterResponseEvent(
+            $this->getMock('Symfony\Component\HttpKernel\HttpKernelInterface'),
+            $request,
+            HttpKernelInterface::MASTER_REQUEST,
+            new Response()
+        );
+
+        $listener = new ContextListener($this->securityContext, array(), 'session');
+        $listener->onKernelResponse($event);
+
         $this->assertFalse($session->isStarted());
     }