public function testRestrictionCanBeAdded()
{
$restriction = $this->createOptionRestriction();
$this->restrictionCollection->expects($this->once())->method('add')->with($restriction);
$this->option->addRestriction($restriction);
}
/**
* @return Money
*/
public function totalPrice() : Money
{
return $this->basePrice()->addTo($this->option->price());
}