How to configure BehatBundle and MinkBundle to run goutte sessions efficiently

app_test.php

<?php

// this check prevents access to debug front controllers that are deployed by accident to production servers.
// feel free to remove this, extend it, or make something more sophisticated.
if (!in_array(@$_SERVER['REMOTE_ADDR'], array(
    '127.0.0.1',
    '::1',
))) {
    header('HTTP/1.0 403 Forbidden');
    die('You are not allowed to access this file. Check '.basename(__FILE__).' for more information.');
}

require_once __DIR__.'/../app/bootstrap.php.cache';
require_once __DIR__.'/../app/AppKernel.php';

use Symfony\Component\HttpFoundation\Request;

$kernel = new AppKernel('test', true);
$kernel->handle(Request::createFromGlobals())->send();

AppKernel.php

<?php

public function registerBundles()
{
    // ...
    if ('test' === $this->getEnvironment()) {
        $bundles[] = new Behat\MinkBundle\BehatMinkBundle();
        $bundles[] = new Behat\BehatBundle\BehatBundle();
    }
    // ...
}

config_test.yml

imports:
    - { resource: config_dev.yml }

framework:
    test: ~
    session:
        storage_id: session.storage.filesystem

web_profiler:
    toolbar: false
    intercept_redirects: false

behat_mink:
    base_url:        http://your_app.dev/app_test.php/
    default_session: goutte
    goutte:   ~
    sahi:     ~

behat:        ~