public void ComputeTaxForItemWiseTaxCalulator()
{
IDiscountService discountService = new DiscountService();
ITaxService taxService = new TaxCalculatorService("IO");
IShoppingCartService scs = new ShoppingCartService(discountService);
var cs = new CustomerService(scs);
var custId = cs.CreateCustomer("Paniraj N");
var shoppingCart = cs.CreateShoppingCart(custId);
var ps = new ProductService();
var pA = ps.CreateProduct("A", "product A", 50, ProductCategory.Basic);
var pB = ps.CreateProduct("B", "product B", 30, ProductCategory.Luxury);
var pC = ps.CreateProduct("C", "product C", 20, ProductCategory.Luxury);
var discountA = discountService.CreateDiscount("Discount on A", "Discount if Purchase 3 As");
var pAs = new KeyValuePair <Product, int>(pA, 3);
var discountCombinationAs = new List <KeyValuePair <Product, int> >();
discountCombinationAs.Add(pAs);
var dci = new DiscountCombinationItems(discountCombinationAs,
20, 0);
discountService.CreateDiscountCombinationItems(discountA.Id, dci);
scs.AddItem(shoppingCart, pA, 1);
scs.AddItem(shoppingCart, pB, 1);
scs.AddItem(shoppingCart, pC, 1);
shoppingCart = scs.ComputeBill(shoppingCart);
taxService.CalculateTax(shoppingCart);
//There is no discount applicable for this card, cart value is 100, Basic Tax is 10.
Assert.AreEqual(15, shoppingCart.TaxAmount);
}
public void ComputeBillScenarioATest()
{
IDiscountService discountService = new DiscountService();
IShoppingCartService scs = new ShoppingCartService(discountService);
var cs = new CustomerService(scs);
var custId = cs.CreateCustomer("Paniraj N");
var shoppingCart = cs.CreateShoppingCart(custId);
var ps = new ProductService();
var pA = ps.CreateProduct("A", "product A", 50, ProductCategory.Basic);
var pB = ps.CreateProduct("B", "product B", 30, ProductCategory.Luxury);
var pC = ps.CreateProduct("C", "product C", 20, ProductCategory.Luxury);
var discountA = discountService.CreateDiscount("Discount on A", "Discount if Purchase 3 As");
var pAs = new KeyValuePair <Product, int>(pA, 3);
var discountCombinationAs = new List <KeyValuePair <Product, int> >();
discountCombinationAs.Add(pAs);
var dci = new DiscountCombinationItems(discountCombinationAs,
20, 0);
discountService.CreateDiscountCombinationItems(discountA.Id, dci);
scs.AddItem(shoppingCart, pA, 1);
scs.AddItem(shoppingCart, pB, 1);
scs.AddItem(shoppingCart, pC, 1);
shoppingCart = scs.ComputeBill(shoppingCart);
Assert.AreEqual(100, shoppingCart.TotalBillAmount - shoppingCart.TotalDiscountAmount);
}
public void ComputeBillScenarioCTest()
{
IDiscountService discountService = new DiscountService();
IShoppingCartService scs = new ShoppingCartService(discountService);
var cs = new CustomerService(scs);
var custId = cs.CreateCustomer("Paniraj N");
var shoppingCart = cs.CreateShoppingCart(custId);
var ps = new ProductService();
var pA = ps.CreateProduct("A", "product A", 50, ProductCategory.Basic);
var pB = ps.CreateProduct("B", "product B", 30, ProductCategory.Luxury);
var pC = ps.CreateProduct("C", "product C", 20, ProductCategory.Luxury);
var pD = ps.CreateProduct("D", "product D", 15, ProductCategory.Basic);
//Discount A
var discountA = discountService.CreateDiscount("Discount on A", "Discount if Purchase 3 As");
var pAs = new KeyValuePair <Product, int>(pA, 3);
var discountCombinationAs = new List <KeyValuePair <Product, int> >();
discountCombinationAs.Add(pAs);
var dci = new DiscountCombinationItems(discountCombinationAs,
20, 0);
discountService.CreateDiscountCombinationItems(discountA.Id, dci);
//Discount B
var discountB = discountService.CreateDiscount("Discount on B", "Discount if Purchase 2 Bs");
var pBs = new KeyValuePair <Product, int>(pB, 2);
var discountCombinationBs = new List <KeyValuePair <Product, int> >();
discountCombinationBs.Add(pBs);
var dc2 = new DiscountCombinationItems(discountCombinationBs,
15, 0);
discountService.CreateDiscountCombinationItems(discountB.Id, dc2);
//Discount C + D
var discountCD = discountService.CreateDiscount("Discount on C & D", "Discount if Purchase C & Ds");
var pCs = new KeyValuePair <Product, int>(pC, 1);
var pDs = new KeyValuePair <Product, int>(pD, 1);
var discountCombinationCDs = new List <KeyValuePair <Product, int> >();
discountCombinationCDs.Add(pCs);
discountCombinationCDs.Add(pDs);
var dc3 = new DiscountCombinationItems(discountCombinationCDs,
5, 0);
discountService.CreateDiscountCombinationItems(discountCD.Id, dc3);
scs.AddItem(shoppingCart, pA, 3);
scs.AddItem(shoppingCart, pB, 5);
scs.AddItem(shoppingCart, pC, 1);
scs.AddItem(shoppingCart, pD, 1);
shoppingCart = scs.ComputeBill(shoppingCart);
Assert.AreEqual(280, shoppingCart.TotalBillAmount - shoppingCart.TotalDiscountAmount);
}
public Discount UpdateDiscountCombinationItems(int discountId,
DiscountCombinationItems dci)
{
Discount discount = _discounts.Find(d => d.Id == discountId);
if (discount == null)
{
throw new InvalidDataException("discountid does not exist");
}
discount.UpdateDiscountCombinationItems(dci);
return(_discounts[discountId]);
}
public void ComputeTaxForPreDiscountTaxCalulator()
{
IDiscountService discountService = new DiscountService();
//FL uses PreDiscount Tax Method
ITaxService taxService = new TaxCalculatorService("FL");
IShoppingCartService scs = new ShoppingCartService(discountService);
var cs = new CustomerService(scs);
var custId = cs.CreateCustomer("Sachin Sharma");
var shoppingCart = cs.CreateShoppingCart(custId);
var ps = new ProductService();
var pA = ps.CreateProduct("A", "product A", 50, ProductCategory.Basic);
var pB = ps.CreateProduct("B", "product B", 30, ProductCategory.Luxury);
var pC = ps.CreateProduct("C", "product C", 20, ProductCategory.Luxury);
var pD = ps.CreateProduct("D", "product D", 15, ProductCategory.Premium);
var discountA = discountService.CreateDiscount("Discount on A", "Discount if Purchase 3 As");
var pAs = new KeyValuePair <Product, int>(pA, 3);
var discountCombinationAs = new List <KeyValuePair <Product, int> >();
discountCombinationAs.Add(pAs);
var dci = new DiscountCombinationItems(discountCombinationAs,
20, 0);
discountService.CreateDiscountCombinationItems(discountA.Id, dci);
//Discount B
var discountB = discountService.CreateDiscount("Discount on B", "Discount if Purchase 2 Bs");
var pBs = new KeyValuePair <Product, int>(pB, 2);
var discountCombinationBs = new List <KeyValuePair <Product, int> >();
discountCombinationBs.Add(pBs);
var dc2 = new DiscountCombinationItems(discountCombinationBs,
15, 0);
discountService.CreateDiscountCombinationItems(discountB.Id, dc2);
scs.AddItem(shoppingCart, pA, 5);
scs.AddItem(shoppingCart, pB, 5);
scs.AddItem(shoppingCart, pC, 1);
shoppingCart = scs.ComputeBill(shoppingCart);
taxService.CalculateTax(shoppingCart);
//There is $50 discount applicable for this cart, cart value is 420 (370 after discount ).
//Pre Discount Tax is 42.
Assert.AreEqual(42, shoppingCart.TaxAmount);
}
public Discount UpdateDiscountCombinationItems(DiscountCombinationItems discountCombinationItems)
{
this.DiscountCombinationItems = discountCombinationItems;
return(this);
}
