function it_does_nothing_if_target_quantity_is_below_0($orderItemUnitFactory, OrderItemInterface $orderItem)
 {
     $orderItem->getQuantity()->willReturn(3);
     $orderItemUnitFactory->createForItem(Argument::any())->shouldNotBeCalled();
     $orderItem->addUnit(Argument::any())->shouldNotBeCalled();
     $orderItem->removeUnit(Argument::any())->shouldNotBeCalled();
     $this->modify($orderItem, -10);
 }