HiddenFieldSelector example

      // Inject a Guzzle middleware to generate debug output for every request       // performed in the test.       $handler_stack = $client->getConfig('handler');
      $handler_stack->push($this->getResponseLogHandler());

      $driver->getClient()->setClient($client);
    }

    $selectors_handler = new SelectorsHandler([
      'hidden_field_selector' => new HiddenFieldSelector(),
    ]);
    $session = new Session($driver, $selectors_handler);
    $this->mink = new Mink();
    $this->mink->registerSession('default', $session);
    $this->mink->setDefaultSessionName('default');
    $this->registerSessions();

    $this->initFrontPage();

    // Copies cookies from the current environment, for example, XDEBUG_SESSION     // in order to support Xdebug.