Symfony 3.4 and CSRF token in functional tests

Question

I am doing some functional tests with Symfony 3.4 but I have a problem submitting a form with a CSRF token.
I tried a lot of solutions but it keeps failing:

private function makeAuthenticatedClient()
{
    $credentials = array(
        'username' => $this->user->getUsername(),
        'password' => $this->user->getPassword(),
    );

    return $this->makeClient($credentials);
}

public function testAdd()
{
    $client = $this->makeAuthenticatedClient();

    $crawler = $client->request('POST', '/teachers/add');

    // generates the CSRF token
    $csrfToken = $client->getContainer()->get('security.csrf.token_manager')->getToken('division_item');

    $client->request(
        'POST',
        '/teachers/add',
        [
            'teachers' => [
                'name' => 'Test',
                '_token' => $csrfToken,
            ]
        ],
        [],
        ['HTTP_X-Requested-With' => 'XMLHttpRequest']
    );

    $this->assertTrue(
        $client->getResponse()->isRedirect('/teachers/list')
    );
}

And in my form:

public function configureOptions(OptionsResolver $resolver)
{
    $resolver->setDefaults(array(
        'data_class' => Teacher::class,
        'csrf_token_id' => 'division_item',
    ));
}

What am I doing wrong?

Answer 1

The problem occurred because I was generating the CSRF token after making the request. This caused the token to be generated twice (I discovered it dumping things in CsrfTokenManager).

This works:

// generates the CSRF token
$csrfToken = $client->getContainer()->get('security.csrf.token_manager')->getToken('division_item');

$crawler = $client->request('POST', '/teachers/add');