public void ThreeItemsDiscountTypeFourItemTest()
{
var productCodes = new List <string> {
"code1", "code2"
};
var discountType = new ThreeItemsDiscountType(GetDiscount(productCodes));
var lineItems = new List <ILineItem>
{
new StandardLineItem {
Price = 1, ProductCode = "code1", SubTotal = 1, Total = 1
},
new StandardLineItem {
Price = 1, ProductCode = "code2", SubTotal = 1, Total = 1
},
new StandardLineItem {
Price = 1, ProductCode = "code1", SubTotal = 1, Total = 1
},
new StandardLineItem {
Price = 1, ProductCode = "code1", SubTotal = 1, Total = 1
},
};
discountType.Calculate(lineItems);
Assert.Equal(1, lineItems[0].Total);
Assert.Equal(0.34, lineItems[1].Total);
Assert.Equal(0.33, lineItems[2].Total);
Assert.Equal(0.33, lineItems[3].Total);
}
public void ThreeItemsDiscountTypeAlreadyDiscountedTest()
{
var productCodes = new List <string> {
"code1", "code2"
};
var discountType = new ThreeItemsDiscountType(GetDiscount(productCodes));
var originalLineItems = new List <ILineItem>
{
new StandardLineItem {
Price = 1, ProductCode = "code1", SubTotal = 1, Total = 0.5
},
new StandardLineItem {
Price = 1, ProductCode = "code2", SubTotal = 1, Total = 1
},
new StandardLineItem {
Price = 1, ProductCode = "code1", SubTotal = 1, Total = 1
},
};
var lineItems = new List <ILineItem>();
originalLineItems.ForEach(lineItems.Add);
discountType.Calculate(lineItems);
Assert.Equal(originalLineItems, lineItems);
}
public void ThreeItemsDiscountTypeNegativeTest()
{
var discountType = new ThreeItemsDiscountType(GetDiscount());
discountType.Calculate(null);
discountType.Calculate(new List <ILineItem>());
}