Как выполнить методы перед запуском тестов?

class browserTest extends DuskTestCase
{
    public function __construct($name = null, array $data = [], $dataName = '')
    {
        parent::__construct($name, $data, $dataName);
        $this->foo();
    }

    protected function foo()
    {
         //code
    }

PHP Fatal error:  Uncaught RuntimeException: A facade root has not been set. in vendor/laravel/framework/src/Illuminate/Support/Facades/Facade.php:218