CODEWITHSUNDEEP
phpsymfonytwigphpunitsymfony4
Elliot Reed
Elliot Reed

Reputation: 749

Session always null in Twig in Symfony 4 tests

In upgrading Symfony 3.4 to Symfony 4.2 I have all unit test passing apart from functional tests on controllers where Twig is being rendered and using app.session.get('my_session_variable').

Using the standard app.session, the session is always null.

I get the error:

Twig\Error\RuntimeError : Impossible to invoke a method ("get") on a null variable.

It appears the session is not getting set, even when I explicitly set a session in the test setup via:

$this->client->getContainer()->get('session')->set('my_session_variable', 'help');

The code is like the following:

Test class:

final class HomepageTest extends WebtestCase
{
    public function setUp(): void
    {
        parent::setUp();

        $this->client = static::createClient();
        $this->router = $this->client->getContainer()->get('router');
    }

    public function testMyPatience(): void
    {
        $url = $this->router->generate('homepage');
        $this->client->request('GET', $url);

        $this->assertSame(200, $this->client->getResponse()->getStatusCode());
    }
}

Controller class:

final class Homepage extends AbstractController
{
    /**
     * @Route("/homepage", name="homepage", methods={"GET"})
     */
    public function index(): Response
    {
        return $this->render('homepage.html.twig');
    }
}

Twig template:

{% if app.session.get('my_session_variable') != null %}
    <p>Session variable is set</p>
{% endif %}

config/test/framework.yaml:

framework:
  test: true
  session:
    storage_id: session.storage.mock_file

Upvotes: 0

Views: 857

Answers (1)

Elliot Reed
Elliot Reed

Reputation: 749

For anyone else who has this issue, the solution was to use:

app.request.session.get('my_session_variable')

Instead of:

app.session.get('my_session_variable')

Upvotes: 1

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