public override decimal GetAmount(LineItem lineItem, Basket.Basket basket)
{
return
(from c in PerRegionCosts
where c.DestinationRegion == lineItem.DeliveryRegion
select c.Amount).Single();
}
public decimal CalculateShipping(Basket basket)
{
foreach (var lineItem in basket.LineItems)
{
lineItem.ShippingAmount = lineItem.Shipping.GetAmount(lineItem, basket);
lineItem.ShippingDescription = lineItem.Shipping.GetDescription(lineItem, basket);
}
return basket.LineItems.Sum(li => li.ShippingAmount);
}
public void BasketShippingTotalTest()
{
var perRegionShippingOption = new PerRegionShipping()
{
PerRegionCosts = new[]
{
new RegionShippingCost()
{
DestinationRegion =
RegionShippingCost.Regions.UK,
Amount = .75m
},
new RegionShippingCost()
{
DestinationRegion =
RegionShippingCost.Regions.Europe,
Amount = 1.5m
}
},
};
var flatRateShippingOption = new FlatRateShipping {FlatRate = 1.1m};
var basket = new Basket()
{
LineItems = new List<LineItem>
{
new LineItem()
{
DeliveryRegion = RegionShippingCost.Regions.UK,
Shipping = perRegionShippingOption
},
new LineItem()
{
DeliveryRegion = RegionShippingCost.Regions.Europe,
Shipping = perRegionShippingOption
},
new LineItem() {Shipping = flatRateShippingOption},
}
};
var calculator = new ShippingCalculator();
decimal basketShipping = calculator.CalculateShipping(basket);
Assert.That(basketShipping, Is.EqualTo(3.35m));
}
public override string GetDescription(LineItem lineItem, Basket.Basket basket)
{
return "Flat rate shipping";
}
public override decimal GetAmount(LineItem lineItem, Basket.Basket basket)
{
return FlatRate;
}
public abstract string GetDescription(LineItem lineItem, Basket.Basket basket);
public abstract decimal GetAmount(LineItem lineItem, Basket.Basket basket);
public override string GetDescription(LineItem lineItem, Basket.Basket basket)
{
return string.Format("Shipping to {0}", lineItem.DeliveryRegion);
}
