public void TestCalculateTotalPrice()
{
//Arange
var boughtItem = new BoughtItem();
var calculationService = new CalculationService();
//Act
calculationService.CalculateTotalPrice(boughtItem);
//Assert
boughtItem.TotalPrice.Should().Be(300);
}
public void BuyItem(T item, int id, int qty)
{
var itemWantToBuy = _context.Set <T>().Where(i => i.Id == id).SingleOrDefault();
if (itemWantToBuy != null)
{
var boughtItem = _mapper.Map <BoughtItem>(itemWantToBuy);
boughtItem.Quantity = qty;
_calculationService.ApplyDiscount(boughtItem);
_calculationService.CalculateTotalPrice(boughtItem);
_context.BoughtItems.Add(boughtItem);
_context.SaveChanges();
}
else
{
throw new Exception();
}
}