public PostageResult CalculatePostageFor(Basket basket)
{
if (basket == null)
{
throw new ArgumentNullException("basket");
}
var postages = postageRepository.GetAll();
var postZone = basket.Country.PostZone;
var totalWeight = (int)basket.BasketItems
.Sum(bi => bi.TotalWeight);
var postageToApply = postages
.Where(p => totalWeight <= p.MaxWeight && p.IsActive)
.OrderBy(p => p.MaxWeight)
.FirstOrDefault();
var postageDescription = string.Format("for {0}", basket.Country.Name);
if (postageToApply == null) return PostageResult.WithDefault(postZone, postageDescription);
var multiplier = postZone.Multiplier;
var total = new Money(Math.Round(postageToApply.Price.Amount * multiplier, 2, MidpointRounding.AwayFromZero));
return PostageResult.WithPrice(total, postageDescription);
}
public ActionResult MoneyBindingTest(Money money)
{
if (ModelState.IsValid)
{
return Content(string.Format("Bound to Money value: {0}", money));
}
return Content(ModelState.SelectMany(ms => ms.Value.Errors).Aggregate("", (agg, error) => agg + error.ErrorMessage + " "));
}
public void Equals_should_work()
{
var result1 = new Money(123.45M) == new Money(123.45M);
result1.ShouldBeTrue();
var result2 = new Money(123.45M) == null;
result2.ShouldBeFalse();
var result3 = null == new Money(123.45M);
result3.ShouldBeFalse();
var result4 = new Money(123.45M) == new Money(123.46M);
result4.ShouldBeFalse();
}
public void TotalWithPostage_should_return_postageResult_postage()
{
var postageCost = new Money(5.66M);
var itemPrice = new Money(101.43M);
var order = new Order
{
Postage = PostageResult.WithPrice(postageCost, "postage desc")
};
order.AddLine("line1", 1, itemPrice, "", 1, "");
var expectedTotalWithPostage = postageCost + itemPrice;
order.TotalWithPostage.ShouldEqual(expectedTotalWithPostage.ToStringWithSymbol());
}
public void Total_should_return_sum_of_order_line_totals()
{
var price1 = new Money(3.40M);
var price2 = new Money(6.23M);
var price3 = new Money(10.44M);
var order = new Order();
order.AddLine("line1", 2, price1, "", 1, "");
order.AddLine("line2", 1, price2, "", 1, "");
order.AddLine("line3", 3, price3, "", 1, "");
order.AddLine("line4", 2, price1, "", 1, "");
var expectedTotal = (2*price1) + (1*price2) + (3*price3) + (2*price1);
order.Total.ShouldEqual(expectedTotal);
}
public void Should_be_able_to_add_an_OrderLine_to_an_Order()
{
const string itemName = "Large Black Mac";
const int quantity = 4;
var price = new Money(23.45M);
const string urlName = "Large_Black_Mac";
const int productId = 999;
const string sizeName = "Large";
order.AddLine(itemName, quantity, price, urlName, productId, sizeName);
order.OrderLines[0].ProductName.ShouldEqual("Large Black Mac");
order.OrderLines[0].Quantity.ShouldEqual(4);
order.OrderLines[0].Price.Amount.ShouldEqual(23.45M);
order.OrderLines[0].Order.ShouldBeTheSameAs(order);
order.OrderLines[0].ProductUrlName.ShouldEqual(urlName);
order.OrderLines[0].ProductId.ShouldEqual(productId);
order.OrderLines[0].SizeName.ShouldEqual(sizeName);
}
public virtual void AddLine(string productName, int quantity, Money price, string productUrlName, int productId, string sizeName)
{
if (productName == null)
{
throw new ArgumentNullException("productName");
}
if (quantity == 0)
{
throw new ArgumentException("quantity can not be zero");
}
if (productUrlName == null)
{
throw new ArgumentNullException("productUrlName");
}
if (sizeName == null)
{
throw new ArgumentNullException("sizeName");
}
var orderLine = new OrderLine
{
ProductName = productName,
Quantity = quantity,
Price = price,
Order = this,
ProductUrlName = productUrlName,
ProductId = productId,
SizeName = sizeName
};
OrderLines.Add(orderLine);
}
public void Should_be_able_to_do_other_arithmetic_with_money()
{
var x = new Money(43.5M);
var result = x * 3 + x/2 - 4;
result.Amount.ShouldEqual(148.25M);
}
public void Should_be_able_to_add_money()
{
var result = new Money(2.32M) + new Money(3.44M);
result.Amount.ShouldEqual(5.76M);
}
public static PostageResult WithPrice(Money price, string description)
{
return new PostageResult { Phone = false, Price = price, Description = description };
}
public bool Equals(Money otherMoney)
{
if (otherMoney == null) return false;
return Amount.Equals(otherMoney.Amount);
}
