public function its_sorting_order_can_be_only_ascending_or_descending()
{
$this->assertConfigurationIsValid([['grids' => ['sylius_admin_tax_category' => ['sorting' => ['code' => 'asc']]]]]);
$this->assertConfigurationIsValid([['grids' => ['sylius_admin_tax_category' => ['sorting' => ['code' => 'desc']]]]]);
$this->assertConfigurationIsInvalid([['grids' => ['sylius_admin_tax_category' => ['sorting' => ['code' => 'left']]]]]);
$this->assertConfigurationIsInvalid([['grids' => ['sylius_admin_tax_category' => ['sorting' => ['code' => null]]]]]);
}