Accessing services, parameters, entity manager and document manager in FeatureContext file

namespace Football\TeamBundle\Features\Context;

use Behat\MinkExtension\Context\MinkContext;
use Behat\Symfony2Extension\Context\KernelAwareInterface;
use Symfony\Component\HttpKernel\KernelInterface;

class FeatureContext extends MinkContext implements KernelAwareInterface
{
    private $kernel;

    public function setKernel(KernelInterface $kernelInterface)
    {
        $this->kernel = $kernelInterface;
    }

    /**
     * @param string $name
     *
     * @return object
     */
    public function getService($name)
    {
        return $this->kernel->getContainer()->get($name);
    }

    /**
     * @param string $name
     *
     * @return mixed
     */
    public function getParameter($name)
    {
        return $this->kernel->getContainer()->getParameter($name);
    }

    /**
     * @param null|string $name
     *
     * @return EntityManagerInterface
     */
    public function getEntityManager($name = null)
    {
        return $this->kernel->getContainer()->get('doctrine')->getManager($name);
    }

    /**
     * @param null|string $name
     *
     * @return DocumentManager
     */
    public function getDocumentManager($name = 'doctrine_mongodb.odm.default_document_manager')
    {
        return $this->kernel->getContainer()->get($name);
    }
}

namespace Football\TeamBundle\Features\Context;

use Behat\MinkExtension\Context\MinkContext;
use Symfony\Component\DependencyInjection\ContainerAwareInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;

class FeatureContext extends MinkContext implements ContainerAwareInterface
{
    private $container;

    public function setContainer(ContainerInterface $container = null)
    {
        $this->container = $container;
    }

    /**
     * @param string $name
     *
     * @return object
     */
    public function getService($name)
    {
        return $this->container->get($name);
    }

    /**
     * @param string $name
     *
     * @return mixed
     */
    public function getParameter($name)
    {
        return $this->container->getParameter($name);
    }

    /**
     * @param null|string $name
     *
     * @return EntityManagerInterface
     */
    public function getEntityManager($name = null)
    {
        return $this->container->get('doctrine')->getManager($name);
    }

    /**
     * @param null|string $name
     *
     * @return DocumentManager
     */
    public function getDocumentManager($name = 'doctrine_mongodb.odm.default_document_manager')
    {
        return $this->container->get($name);
    }
}

/** @var FeatureContext $mainContext */
$mainContext = $this->getMainContext();