Symfony 2 - Adding session data to request object during unit testing

You should use WebTestCase

Then you can do things which are described in answer for similar question: how-can-i-persist-data-with-symfony2s-session-service-during-a-functional-test

so something like:

$client = static::createClient();
$container = $client->getContainer();
$session = $container->get('session');
$session->set('name', 'Sensorario');
$session->save();

If you use WebTestCase, you can retrieve the "session" service. With this service, you can :

• start the session,
• set some parameters into session,
• save the session,
• pass the Cookie with sessionId to the request

The code can be the following :

use Symfony\Component\BrowserKit\Cookie;
....
....
public function testARequestWithSession()
{
    $client = static::createClient();
    $session = $client->getContainer()->get('session');
    $session->start(); // optional because the ->set() method do the start
    $session->set('my_session_variable', 'myvar'); // the session is started  here if you do not use the ->start() method
    $session->save(); // important if you want to persist the params
    $client->getCookieJar()->set(new Cookie($session->getName(), $session->getId()));  // important if you want that the request retrieve the session

    $client->request( .... ...

A short snippet to set some value in session

$session = $this->client->getRequest()->getSession();
$session->set('name', 'Sensorario');

And a very very simple example to get this value

echo $session->get('name');