public PartData CalculateLineTotals(PartData line)
{
var curline = line;
var extendedPrice = curline.UnitPrice * curline.Quantity;
var totalDiscount = extendedPrice * curline.DiscountPercent;
extendedPrice = extendedPrice - totalDiscount;
curline.UpfrontAmount = extendedPrice * (curline.UpfrontPercent);
curline.FinancedAmount = extendedPrice - curline.UpfrontAmount;
return curline;
}
public PartData LoadLineData(PartData line)
{
var curline = line;
var part = _partsRepo.GetPartByName(line.PartName);
if (curline.UnitPrice == 0) curline.UnitPrice = part.UnitPrice;
if (curline.UpfrontPercent == 0) curline.UpfrontPercent = part.UpfrontPercent;
curline.DiscountPercent = curline.DiscountPercent / 100;
return curline;
}
public void Should_be_able_to_load_missing_part_data()
{
var line = new PartData {PartName = "Basic Microcontroller"};
line = DefaultContext.FinanceTask.LoadLineData(line);
Assert.AreEqual(.1M,line.UpfrontPercent);
Assert.AreEqual(125M,line.UnitPrice);
}
public void Should_calculate_amount_down_after_discount()
{
var line = new PartData { DiscountPercent = .25M, Quantity = 1, UnitPrice = 100, UpfrontPercent = .1M};
var expectedBalance = 67.5M;
var expectedDue = 7.5M;
line = DefaultContext.FinanceTask.CalculateLineTotals(line);
Assert.AreEqual(expectedBalance, line.FinancedAmount);
Assert.AreEqual(expectedDue, line.UpfrontAmount);
}
public void Should_be_able_to_calculate_extended_costs()
{
var line = new PartData { DiscountPercent = .25M, Quantity = 2, UnitPrice = 100 };
var expectedBalance = 150M;
line = DefaultContext.FinanceTask.CalculateLineTotals(line);
Assert.AreEqual(expectedBalance, line.FinancedAmount);
}