public void TenPercentDiscount()
{
// ARRANGE
SupermarketCatalog catalog = new FakeCatalog();
var toothbrush = new Product("toothbrush", ProductUnit.Each);
catalog.AddProduct(toothbrush, 0.99);
var apples = new Product("apples", ProductUnit.Kilo);
catalog.AddProduct(apples, 1.99);
var cart = new ShoppingCart();
cart.AddItemQuantity(apples, 2.5);
var teller = new Teller(catalog);
teller.AddSpecialOffer(SpecialOfferType.TenPercentDiscount, toothbrush, 10.0);
// ACT
var receipt = teller.ChecksOutArticlesFrom(cart);
// ASSERT
Assert.Equal(4.975, receipt.GetTotalPrice());
Assert.Equal(new List <Discount>(), receipt.GetDiscounts());
Assert.Single(receipt.GetItems());
var receiptItem = receipt.GetItems()[0];
Assert.Equal(apples, receiptItem.Product);
Assert.Equal(1.99, receiptItem.Price);
Assert.Equal(2.5 * 1.99, receiptItem.TotalPrice);
Assert.Equal(2.5, receiptItem.Quantity);
}
public void TenPercentDiscount()
{
var catalog = new FakeCatalog();
var toothbrush = new Product("toothbrush", ProductUnitType.Each);
catalog.AddProduct(toothbrush, 0.99);
var apples = new Product("apples", ProductUnitType.Kilo);
catalog.AddProduct(apples, 1.99);
var teller = new Teller(catalog);
teller.AddSpecialOffer(SpecialOfferType.TenPercentDiscount, toothbrush, 10.0);
var cart = new ShoppingCart();
cart.AddItem(apples, 2.5);
var receipt = teller.ChecksOutArticlesFrom(cart);
Assert.That(receipt.TotalPrice, Is.EqualTo(4.975).Within(0.01));
Assert.IsEmpty(receipt.Discounts);
Assert.That(receipt.Items.Count, Is.EqualTo(1));
var receiptItem = receipt.Items[0];
Assert.That(receiptItem.Product, Is.EqualTo(apples));
Assert.That(receiptItem.Price, Is.EqualTo(1.99));
Assert.That(receiptItem.TotalPrice, Is.EqualTo(2.5 * 1.99));
Assert.That(receiptItem.Quantity, Is.EqualTo(2.5));
}
public void GivenCombinationOfDifferentProducts_WhenCheckOut_ThenGetTotalPrice()
{
Product apples = new Product("apples", ProductUnit.Kilo);
catalog.AddProduct(apples, 1);
Product toothbrush = new Product("toothbrush", ProductUnit.Each);
catalog.AddProduct(toothbrush, 1);
Product tv = new Product("tv", ProductUnit.Each);
catalog.AddProduct(tv, 2);
Product fridge = new Product("fridge", ProductUnit.Each);
catalog.AddProduct(fridge, 3);
Product rice = new Product("rice", ProductUnit.Kilo);
catalog.AddProduct(rice, 4);
cart.AddItemQuantity(apples, 5);
cart.AddItemQuantity(toothbrush, 2);
cart.AddItemQuantity(tv, 5);
cart.AddItemQuantity(fridge, 5);
cart.AddItemQuantity(rice, 10);
teller = new Teller(catalog);
teller.AddSpecialOffer(SpecialOfferType.TenPercentDiscount, toothbrush, 10.0);
teller.AddSpecialOffer(SpecialOfferType.ThreeForTwo, tv, 0.00);
teller.AddSpecialOffer(SpecialOfferType.TwoForAmount, fridge, 1.00);
teller.AddSpecialOffer(SpecialOfferType.FiveForAmount, toothbrush, 2.00);
Receipt receipt = teller.ChecksOutArticlesFrom(cart);
Assert.That(receipt.GetTotalPrice(), Is.EqualTo(60));
}
public void AnEmptyShoppingCart_ShouldCostNothing()
{
ISupermarketCatalog catalog = new FakeCatalog();
var teller = new Teller(catalog);
var theCart = new ShoppingCart();
var receipt = teller.ChecksOutArticlesFrom(theCart);
Assert.That(receipt.TotalPrice, Is.EqualTo(0.00));
}
public void GivenProductWithTwoForAmountDiscount_WhenCheckOut_ThenApplyTwoForAmountDiscount()
{
Product toothbrush = new Product("toothbrush", ProductUnit.Each);
catalog.AddProduct(toothbrush, 2);
cart.AddItemQuantity(toothbrush, 5);
teller = new Teller(catalog);
teller.AddSpecialOffer(SpecialOfferType.TwoForAmount, toothbrush, 1.00);
Receipt receipt = teller.ChecksOutArticlesFrom(cart);
Assert.That(receipt.GetTotalPrice(), Is.EqualTo(4));
}
public void GivenProductWithNoDiscount_WhenPrintReceiptWith_ThenPrintProductPricesOnly()
{
Product apples = new Product("apples", ProductUnit.Kilo);
catalog.AddProduct(apples, 1.99);
teller = new Teller(catalog);
cart.AddItemQuantity(apples, 2.5);
Receipt receipt = teller.ChecksOutArticlesFrom(cart);
ReceiptPrinter receiptPrinter = new ReceiptPrinter(15);
Assert.That(receiptPrinter.PrintReceipt(receipt),
Is.EqualTo("apples 4.97\n 1.99 * 2.500\n\nTotal: 4.97\n"));
}
public void GivenProductWithFiveForAmountDiscount_WhenPrintReceipt_ThenPrintProductPriceAndDiscount()
{
var phone = new Product("phone", ProductUnit.Each);
catalog.AddProduct(phone, 1);
teller = new Teller(catalog);
teller.AddSpecialOffer(SpecialOfferType.FiveForAmount, phone, 1.00);
cart.AddItemQuantity(phone, 10);
var receipt = teller.ChecksOutArticlesFrom(cart);
ReceiptPrinter receiptPrinter = new ReceiptPrinter(15);
Assert.That(receiptPrinter.PrintReceipt(receipt),
Is.EqualTo("phone 10.00\n 1.00 * 10\n5 for 1(phone)-8.00\n\nTotal: 2.00\n"));
}
public void GivenProductWithTwoForAmountDiscountButLessThanTwoInCart_WhenPrintReceipt_ThenPrintProductPriceOnly()
{
Product phone = new Product("phone", ProductUnit.Each);
catalog.AddProduct(phone, 2);
teller = new Teller(catalog);
teller.AddSpecialOffer(SpecialOfferType.TwoForAmount, phone, 1.00);
cart.AddItemQuantity(phone, 1);
Receipt receipt = teller.ChecksOutArticlesFrom(cart);
ReceiptPrinter receiptPrinter = new ReceiptPrinter(15);
Assert.That(receiptPrinter.PrintReceipt(receipt),
Is.EqualTo("phone 2.00\n\nTotal: 2.00\n"));
}
public void GivenProductWithThreeForTwoDiscountButLessThanThreeInCart_WhenPrintReceipt_ThenPrintProductPriceOnly()
{
Product socks = new Product("socks", ProductUnit.Each);
catalog.AddProduct(socks, 1);
teller = new Teller(catalog);
teller.AddSpecialOffer(SpecialOfferType.ThreeForTwo, socks, 0.00);
cart.AddItemQuantity(socks, 2);
Receipt receipt = teller.ChecksOutArticlesFrom(cart);
ReceiptPrinter receiptPrinter = new ReceiptPrinter(15);
Assert.That(receiptPrinter.PrintReceipt(receipt),
Is.EqualTo("socks 2.00\n 1.00 * 2\n\nTotal: 2.00\n"));
}
public void GivenProductWithTenPercentDiscount_WhenPrintReceipt_ThenPrintProductPriceAndDiscount()
{
Product dog = new Product("dog", ProductUnit.Each);
catalog.AddProduct(dog, 0.99);
teller = new Teller(catalog);
teller.AddSpecialOffer(SpecialOfferType.TenPercentDiscount, dog, 10.0);
cart.AddItemQuantity(dog, 2);
Receipt receipt = teller.ChecksOutArticlesFrom(cart);
ReceiptPrinter receiptPrinter = new ReceiptPrinter(15);
Assert.That(receiptPrinter.PrintReceipt(receipt),
Is.EqualTo("dog 1.98\n 0.99 * 2\n10% off(dog)-0.20\n\nTotal: 1.78\n"));
}
public void GivenProductWithTenPercentDiscount_WhenCheckOut_ThenReduceProductPriceByTenPercent()
{
Product toothbrush = new Product("toothbrush", ProductUnit.Each);
catalog.AddProduct(toothbrush, 0.99);
cart.AddItemQuantity(toothbrush, 2);
teller = new Teller(catalog);
teller.AddSpecialOffer(SpecialOfferType.TenPercentDiscount, toothbrush, 10.0);
var receipt = teller.ChecksOutArticlesFrom(cart);
Assert.That(receipt.GetTotalPrice(), Is.EqualTo(1.782));
ReceiptItem receiptItem = receipt.GetItems()[0];
Assert.AreEqual(toothbrush, receiptItem.Product);
Assert.AreEqual(0.99, receiptItem.Price);
Assert.AreEqual(2 * 0.99, receiptItem.TotalPrice);
Assert.AreEqual(2, receiptItem.Quantity);
}
public void GivenCombinationOfProducts_WhenPrintReceipt_ThenPrintProductsWithAndWithoutDiscounts()
{
Product bun = new Product("bun", ProductUnit.Kilo);
catalog.AddProduct(bun, 1);
Product bin = new Product("bin", ProductUnit.Each);
catalog.AddProduct(bin, 1);
teller = new Teller(catalog);
teller.AddSpecialOffer(SpecialOfferType.TenPercentDiscount, bin, 10.0);
cart.AddItemQuantity(bun, 5);
cart.AddItemQuantity(bin, 2);
Receipt receipt = teller.ChecksOutArticlesFrom(cart);
ReceiptPrinter receiptPrinter = new ReceiptPrinter(1);
Assert.That(receiptPrinter.PrintReceipt(receipt),
Is.EqualTo("bun5.00\n 1.00 * 5.000\nbin2.00\n 1.00 * 2\n10% off(bin)-0.20\n\nTotal: 6.80\n"));
}
public void GivenProductWithNoDiscount_WhenCheckOut_ThenReturnTotalProductPrice()
{
Product apples = new Product("apples", ProductUnit.Kilo);
catalog.AddProduct(apples, 1.99);
cart.AddItemQuantity(apples, 2.5);
teller = new Teller(catalog);
Receipt receipt = teller.ChecksOutArticlesFrom(cart);
Assert.That(receipt.GetTotalPrice(), Is.EqualTo(4.975));
Assert.AreEqual(new List <Discount>(), receipt.GetDiscounts());
Assert.That(receipt.GetItems(), Has.Exactly(1).Items);
ReceiptItem receiptItem = receipt.GetItems()[0];
Assert.AreEqual(apples, receiptItem.Product);
Assert.AreEqual(1.99, receiptItem.Price);
Assert.AreEqual(2.5 * 1.99, receiptItem.TotalPrice);
Assert.AreEqual(2.5, receiptItem.Quantity);
}
public void GivenProductWithThreeForTwoDiscount_WhenCheckOut_ThenApplyThreeForTwoDiscountToTotalPrice()
{
var toothbrush = new Product("toothbrush", ProductUnit.Each);
catalog.AddProduct(toothbrush, 1);
cart.AddItemQuantity(toothbrush, 5);
teller = new Teller(catalog);
teller.AddSpecialOffer(SpecialOfferType.ThreeForTwo, toothbrush, 0.00);
var receipt = teller.ChecksOutArticlesFrom(cart);
Assert.That(receipt.GetTotalPrice(), Is.EqualTo(4));
var receiptItem = receipt.GetItems()[0];
Assert.AreEqual(toothbrush, receiptItem.Product);
Assert.AreEqual(1, receiptItem.Price);
Assert.AreEqual(1 * 5, receiptItem.TotalPrice);
Assert.AreEqual(5, receiptItem.Quantity);
}
