public void When_I_generate_a_receipt_with_quantity_discount()
{
var sut = new ReceiptGenerator();
var productCatalog = new ProductCatalog();
productCatalog.AddProduct("apple", 0.75m);
productCatalog.AddProduct("banana", 1.00m);
productCatalog.AddQuantityDiscount("apple", 3, 2.00m);
var transaction = new CheckoutTransaction(productCatalog, new Promotions(new List <IPromotionalDiscountRule>()
{
new AdditionalItemDiscountRule(productCatalog), new QuantityDiscountRule(productCatalog)
}));
transaction.AddItem("apple");
transaction.AddItem("banana");
transaction.AddItem("apple");
transaction.AddItem("apple");
transaction.AddItem("apple");
transaction.AddItem("apple");
transaction.AddItem("apple");
transaction.AddItem("apple");
var actual = sut.Generate(transaction);
Assert.That(actual, Is.EqualTo("Receipt:\n7 apple @ $0.75 is $5.25\n***Discount on apple: Buy 3 apple for $2.00, New Price $4.75, Savings $0.50\n1 banana @ $1.00 is $1.00\nTotal is $5.75"));
}
public void When_constructed_with_applicable_quantity_discount_but_no_matching_items()
{
var productCatalog = new ProductCatalog();
productCatalog.AddProduct("apple", 0.75m);
productCatalog.AddProduct("banana", 1.00m);
productCatalog.AddQuantityDiscount("apple", 2, 2.00m);
var sut = new Bill(new List<string>() { "banana" }, productCatalog, new Promotions(new List<IPromotionalDiscountRule>() { new AdditionalItemDiscountRule(productCatalog), new QuantityDiscountRule(productCatalog)}));
Assert.That(sut.Total, Is.EqualTo(1.00m));
Assert.That(sut.LineItems.Count(), Is.EqualTo(1));
}
public void When_product_catalog_is_added_to()
{
var sut = new ProductCatalog();
sut.AddProduct("apple", 0.75m);
sut.AddProduct("banana", 1.00m);
Assert.That(sut.Products.Count(), Is.EqualTo(2));
Assert.True(sut.Products.First(p => p.Barcode == "apple").Price == 0.75m);
Assert.True(sut.Products.First(p => p.Barcode == "banana").Price == 1.00m);
}
public void When_constructed_with_applicable_additional_item_discount()
{
var productCatalog = new ProductCatalog();
productCatalog.AddProduct("apple", 0.75m);
productCatalog.AddProduct("banana", 1.00m);
productCatalog.AddAdditionalItemDiscount("apple", 1, 1, 100);
var sut = new Bill(new List<string>() { "apple", "banana", "apple", "apple", "apple", "apple" }, productCatalog, new Promotions(new List<IPromotionalDiscountRule>() {new AdditionalItemDiscountRule(productCatalog), new QuantityDiscountRule(productCatalog)}));
Assert.That(sut.Total, Is.EqualTo(3.25m));
Assert.That(sut.LineItems.Count(), Is.EqualTo(2));
Assert.That(sut.LineItems.ElementAt(0).PricePerUnit, Is.EqualTo(0.75m));
Assert.That(sut.LineItems.ElementAt(0).DiscountNote, Is.EqualTo("***Discount on apple: Buy 1 apple get 1 at $0.00, New Price $2.25, Savings $1.50"));
}
protected void Page_Load(object sender, EventArgs e)
{
ProductCatalog pc = new ProductCatalog();
pc.AddProduct("Radiation Blaster 3000", 150M, "microwave.jpg");
pc.AddProduct("Fruit Ninja", 70M, "mixer.jpg");
pc.AddProduct("Toasty Buns", 20M, "toaster.jpg");
Response.Write(pc.GetCatalogHtml());
TaxableProduct tp = (TaxableProduct)pc.GetHighPricedProduct();
Response.Write("The high priced product is: " + tp.Name + " at a price of $" + tp.TotalPrice);
}
protected void Page_Load(object sender, EventArgs e)
{
ProductCatalog productCatalog = new ProductCatalog();
productCatalog.AddProduct("Microwave", 12, "http://localhost:54097/C-Sharp/microwave.jpg");
productCatalog.AddProduct("Mixer", 120, "http://localhost:54097/C-Sharp/mixer.jpg");
productCatalog.AddProduct("Toaster", 2, "http://localhost:54097/C-Sharp/toaster.jpg");
Response.Write(productCatalog.GetCatalogHtml());
Response.Write("The highest priced item is: " + productCatalog.GetHighPricedProduct().Name
+ " " + productCatalog.GetHighPricedProduct().Price);
}
public void When_constructed()
{
var productCatalog = new ProductCatalog();
productCatalog.AddProduct("apple", 0.75m);
productCatalog.AddProduct("banana", 1.00m);
var sut = new LineItem("apple", 2, productCatalog, new Promotions(new List<IPromotionalDiscountRule>()));
Assert.That(sut.Barcode, Is.EqualTo("apple"));
Assert.That(sut.Quantity, Is.EqualTo(2));
Assert.That(sut.PricePerUnit, Is.EqualTo(0.75m));
Assert.That(sut.SubTotal, Is.EqualTo(1.50m));
Assert.That(sut.DiscountNote, Is.EqualTo(""));
}
protected void Page_Load(object sender, EventArgs e)
{
ProductCatalog pc = new ProductCatalog();
pc.AddProduct("Radiation Blaster 3000", 150M, "microwave.jpg");
pc.AddProduct("Fruit Ninja", 70M, "mixer.jpg");
pc.AddProduct("Toasty Buns", 20M, "toaster.jpg");
Response.Write(pc.GetCatalogHtml());
TaxableProduct tp = (TaxableProduct)pc.GetHighPricedProduct();
Response.Write("The high priced product is: " + tp.Name + " at a price of $" + tp.TotalPrice);
}
protected void Page_Load(object sender, EventArgs e)
{
ProductCatalog pc = new ProductCatalog();
pc.AddProduct("The Scorcher", 1000, "microwave.jpg");
pc.AddProduct("The Whirlpool", 500, "mixer.jpg");
pc.AddProduct("Buns Burner", 700, "toaster.jpg");
Response.Write(pc.getCatalogHtml());
TaxableProduct highProd = (TaxableProduct)pc.GetHighPricedProduct();
Response.Write("The most Expensive product is: " + highProd.Name + " at $" + highProd.TotalPrice);
}
public void When_constructed_with_some_items()
{
var productCatalog = new ProductCatalog();
productCatalog.AddProduct("apple", 0.75m);
productCatalog.AddProduct("banana", 1.00m);
var sut = new Bill(new List<string>() { "apple", "banana", "apple" }, productCatalog, new Promotions(new List<IPromotionalDiscountRule>()));
Assert.That(sut.Total, Is.EqualTo(2.50m));
Assert.That(sut.LineItems.Count(), Is.EqualTo(2));
Assert.That(sut.LineItems.ElementAt(0).Barcode, Is.EqualTo("apple"));
Assert.That(sut.LineItems.ElementAt(0).SubTotal, Is.EqualTo(1.50m));
Assert.That(sut.LineItems.ElementAt(1).Barcode, Is.EqualTo("banana"));
Assert.That(sut.LineItems.ElementAt(1).SubTotal, Is.EqualTo(1.00m));
}
public void When_constructed()
{
var productCatalog = new ProductCatalog();
productCatalog.AddProduct("apple", 0.75m);
productCatalog.AddProduct("banana", 1.00m);
var sut = new LineItem("apple", 2, productCatalog, new Promotions(new List <IPromotionalDiscountRule>()));
Assert.That(sut.Barcode, Is.EqualTo("apple"));
Assert.That(sut.Quantity, Is.EqualTo(2));
Assert.That(sut.PricePerUnit, Is.EqualTo(0.75m));
Assert.That(sut.SubTotal, Is.EqualTo(1.50m));
Assert.That(sut.DiscountNote, Is.EqualTo(""));
}
public void When_promotion_does_not_apply()
{
var productCatalog = new ProductCatalog();
productCatalog.AddAdditionalItemDiscount("apple", 1, 1, 100);
productCatalog.AddProduct("apple", 0.75m);
productCatalog.AddProduct("banana", 1m);
var sut = new AdditionalItemDiscountRule(productCatalog);
var promotions = new Promotions(new List<IPromotionalDiscountRule>() { sut });
var lineItem = new LineItem("banana", 7, productCatalog, promotions);
var actual = sut.PromotionApplies(lineItem);
Assert.That(actual, Is.False);
}
public void When_add_some_items()
{
var expected = new List<string>() { "apple", "banana", "apple" };
var productCatalog = new ProductCatalog();
productCatalog.AddProduct("apple", 0.75m);
productCatalog.AddProduct("banana", 1.00m);
var sut = new CheckoutTransaction(productCatalog, new Promotions(new List<IPromotionalDiscountRule>()));
sut.AddItem("apple");
sut.AddItem("banana");
sut.AddItem("apple");
Assert.That(sut.Bill.Total, Is.EqualTo(2.50m));
CollectionAssert.AreEquivalent(expected, sut.Items);
}
public void When_constructed_with_quantity_discount()
{
var productCatalog = new ProductCatalog();
productCatalog.AddProduct("apple", 0.75m);
productCatalog.AddProduct("banana", 1.00m);
productCatalog.AddQuantityDiscount("apple", 3, 2.00m);
var sut = new LineItem("apple", 7, productCatalog, new Promotions(new List<IPromotionalDiscountRule>() { new AdditionalItemDiscountRule(productCatalog), new QuantityDiscountRule(productCatalog) }));
Assert.That(sut.Barcode, Is.EqualTo("apple"));
Assert.That(sut.Quantity, Is.EqualTo(7));
Assert.That(sut.PricePerUnit, Is.EqualTo(0.75m));
Assert.That(sut.SubTotal, Is.EqualTo(5.25m));
Assert.That(sut.DiscountedSubTotal, Is.EqualTo(4.75m));
Assert.That(sut.DiscountNote, Is.EqualTo("***Discount on apple: Buy 3 apple for $2.00, New Price $4.75, Savings $0.50"));
}
public void When_constructed_with_additional_item_discount()
{
var productCatalog = new ProductCatalog();
productCatalog.AddProduct("apple", 0.75m);
productCatalog.AddProduct("banana", 1.00m);
productCatalog.AddAdditionalItemDiscount("apple", 1, 1, 100);
var sut = new LineItem("apple", 5, productCatalog, new Promotions(new List<IPromotionalDiscountRule>() { new AdditionalItemDiscountRule(productCatalog), new QuantityDiscountRule(productCatalog)}));
Assert.That(sut.Barcode, Is.EqualTo("apple"));
Assert.That(sut.Quantity, Is.EqualTo(5));
Assert.That(sut.PricePerUnit, Is.EqualTo(0.75m));
Assert.That(sut.SubTotal, Is.EqualTo(3.75m));
Assert.That(sut.DiscountedSubTotal, Is.EqualTo(2.25m));
Assert.That(sut.DiscountNote, Is.EqualTo("***Discount on apple: Buy 1 apple get 1 at $0.00, New Price $2.25, Savings $1.50"));
}
public void When_I_generate_a_receipt_with_regular_prices()
{
var sut = new ReceiptGenerator();
var productCatalog = new ProductCatalog();
productCatalog.AddProduct("apple", 0.75m);
productCatalog.AddProduct("banana", 1.00m);
var transaction = new CheckoutTransaction(productCatalog, new Promotions(new List <IPromotionalDiscountRule>()));
transaction.AddItem("apple");
transaction.AddItem("banana");
transaction.AddItem("apple");
var actual = sut.Generate(transaction);
Assert.That(actual, Is.EqualTo("Receipt:\n2 apple @ $0.75 is $1.50\n1 banana @ $1.00 is $1.00\nTotal is $2.50"));
}
public void ProductCatalog_ShouldReturn_ProductPrice_ByPassingProductName()
{
ProductCatalog productCatalog = new ProductCatalog();
productCatalog.AddProduct('A', 30);
var price = productCatalog.GetPrice('A');
Assert.AreEqual(price, 30);
}
public void ProductCatalog_ShouldReturnZero_When_ProductNotFound()
{
ProductCatalog productCatalog = new ProductCatalog();
productCatalog.AddProduct('A', 30);
var price = productCatalog.GetPrice('B');
Assert.AreEqual(price, 0);
}
public void When_constructed_with_applicable_quantity_discount_but_no_matching_items()
{
var productCatalog = new ProductCatalog();
productCatalog.AddProduct("apple", 0.75m);
productCatalog.AddProduct("banana", 1.00m);
productCatalog.AddQuantityDiscount("apple", 2, 2.00m);
var sut = new Bill(new List <string>()
{
"banana"
}, productCatalog, new Promotions(new List <IPromotionalDiscountRule>()
{
new AdditionalItemDiscountRule(productCatalog), new QuantityDiscountRule(productCatalog)
}));
Assert.That(sut.Total, Is.EqualTo(1.00m));
Assert.That(sut.LineItems.Count(), Is.EqualTo(1));
}
public void When_constructed_with_some_items()
{
var productCatalog = new ProductCatalog();
productCatalog.AddProduct("apple", 0.75m);
productCatalog.AddProduct("banana", 1.00m);
var sut = new Bill(new List <string>()
{
"apple", "banana", "apple"
}, productCatalog, new Promotions(new List <IPromotionalDiscountRule>()));
Assert.That(sut.Total, Is.EqualTo(2.50m));
Assert.That(sut.LineItems.Count(), Is.EqualTo(2));
Assert.That(sut.LineItems.ElementAt(0).Barcode, Is.EqualTo("apple"));
Assert.That(sut.LineItems.ElementAt(0).SubTotal, Is.EqualTo(1.50m));
Assert.That(sut.LineItems.ElementAt(1).Barcode, Is.EqualTo("banana"));
Assert.That(sut.LineItems.ElementAt(1).SubTotal, Is.EqualTo(1.00m));
}
public void When_promotion_does_not_apply()
{
var productCatalog = new ProductCatalog();
productCatalog.AddQuantityDiscount("apple", 3, 2);
productCatalog.AddProduct("apple", 0.75m);
productCatalog.AddProduct("banana", 1m);
var sut = new QuantityDiscountRule(productCatalog);
var promotions = new Promotions(new List <IPromotionalDiscountRule>()
{
sut
});
var lineItem = new LineItem("banana", 7, productCatalog, promotions);
var actual = sut.PromotionApplies(lineItem);
Assert.That(actual, Is.False);
}
public void When_add_some_items()
{
var expected = new List <string>()
{
"apple", "banana", "apple"
};
var productCatalog = new ProductCatalog();
productCatalog.AddProduct("apple", 0.75m);
productCatalog.AddProduct("banana", 1.00m);
var sut = new CheckoutTransaction(productCatalog, new Promotions(new List <IPromotionalDiscountRule>()));
sut.AddItem("apple");
sut.AddItem("banana");
sut.AddItem("apple");
Assert.That(sut.Bill.Total, Is.EqualTo(2.50m));
CollectionAssert.AreEquivalent(expected, sut.Items);
}
public void When_constructed_with_additional_item_discount()
{
var productCatalog = new ProductCatalog();
productCatalog.AddProduct("apple", 0.75m);
productCatalog.AddProduct("banana", 1.00m);
productCatalog.AddAdditionalItemDiscount("apple", 1, 1, 100);
var sut = new LineItem("apple", 5, productCatalog, new Promotions(new List <IPromotionalDiscountRule>()
{
new AdditionalItemDiscountRule(productCatalog), new QuantityDiscountRule(productCatalog)
}));
Assert.That(sut.Barcode, Is.EqualTo("apple"));
Assert.That(sut.Quantity, Is.EqualTo(5));
Assert.That(sut.PricePerUnit, Is.EqualTo(0.75m));
Assert.That(sut.SubTotal, Is.EqualTo(3.75m));
Assert.That(sut.DiscountedSubTotal, Is.EqualTo(2.25m));
Assert.That(sut.DiscountNote, Is.EqualTo("***Discount on apple: Buy 1 apple get 1 at $0.00, New Price $2.25, Savings $1.50"));
}
public void When_constructed_with_quantity_discount()
{
var productCatalog = new ProductCatalog();
productCatalog.AddProduct("apple", 0.75m);
productCatalog.AddProduct("banana", 1.00m);
productCatalog.AddQuantityDiscount("apple", 3, 2.00m);
var sut = new LineItem("apple", 7, productCatalog, new Promotions(new List <IPromotionalDiscountRule>()
{
new AdditionalItemDiscountRule(productCatalog), new QuantityDiscountRule(productCatalog)
}));
Assert.That(sut.Barcode, Is.EqualTo("apple"));
Assert.That(sut.Quantity, Is.EqualTo(7));
Assert.That(sut.PricePerUnit, Is.EqualTo(0.75m));
Assert.That(sut.SubTotal, Is.EqualTo(5.25m));
Assert.That(sut.DiscountedSubTotal, Is.EqualTo(4.75m));
Assert.That(sut.DiscountNote, Is.EqualTo("***Discount on apple: Buy 3 apple for $2.00, New Price $4.75, Savings $0.50"));
}
public IActionResult OnPost()
{
if (!ModelState.IsValid)
{
return(Page());
}
catalog.AddProduct(Product);
return(RedirectToPage("GetAllProducts"));
}
public void When_constructed_with_applicable_additional_item_discount()
{
var productCatalog = new ProductCatalog();
productCatalog.AddProduct("apple", 0.75m);
productCatalog.AddProduct("banana", 1.00m);
productCatalog.AddAdditionalItemDiscount("apple", 1, 1, 100);
var sut = new Bill(new List <string>()
{
"apple", "banana", "apple", "apple", "apple", "apple"
}, productCatalog, new Promotions(new List <IPromotionalDiscountRule>()
{
new AdditionalItemDiscountRule(productCatalog), new QuantityDiscountRule(productCatalog)
}));
Assert.That(sut.Total, Is.EqualTo(3.25m));
Assert.That(sut.LineItems.Count(), Is.EqualTo(2));
Assert.That(sut.LineItems.ElementAt(0).PricePerUnit, Is.EqualTo(0.75m));
Assert.That(sut.LineItems.ElementAt(0).DiscountNote, Is.EqualTo("***Discount on apple: Buy 1 apple get 1 at $0.00, New Price $2.25, Savings $1.50"));
}
public void Begin()
{
if (!_cartData.Any())
{
_consoleWriter.WriteLine("Error cart is empty");
return;
}
var productCatalog = new ProductCatalog();
foreach (var productCatalogLine in _productCatalogData)
{
var parts = productCatalogLine.Split(',');
if (parts[0] == "PRODUCT")
{
var barcode = parts[1].Trim();
var price = Decimal.Parse(parts[2]);
productCatalog.AddProduct(barcode, price);
}
else if (parts[0] == "QUANTITY_DISCOUNT")
{
var barcode = parts[1].Trim();
var quantity = Convert.ToInt32(parts[2]);
var discountPrice = Convert.ToDecimal(parts[3]);
productCatalog.AddQuantityDiscount(barcode, quantity, discountPrice);
}
else if (parts[0] == "ADDITIONAL_ITEM_DISCOUNT")
{
var barcode = parts[1].Trim();
var quantity = Convert.ToInt32(parts[2]);
var quantityDiscounted = Convert.ToInt32(parts[3]);
var dicountPercentage = Convert.ToDouble(parts[4]);
productCatalog.AddAdditionalItemDiscount(barcode, quantity, quantityDiscounted, dicountPercentage);
}
}
var promotionalDiscountRules = new List <IPromotionalDiscountRule>()
{
new AdditionalItemDiscountRule(productCatalog), new QuantityDiscountRule(productCatalog)
};
var transaction = new CheckoutTransaction(productCatalog, new Promotions(promotionalDiscountRules));
foreach (var cartLine in _cartData)
{
transaction.AddItem(cartLine);
}
var reportGenerator = new ReceiptGenerator();
var receipt = reportGenerator.Generate(transaction);
_consoleWriter.WriteLine(receipt);
}
public void When_promotion_applies()
{
var productCatalog = new ProductCatalog();
productCatalog.AddQuantityDiscount("apple", 3, 2);
productCatalog.AddProduct("apple", 0.75m);
var sut = new QuantityDiscountRule(productCatalog);
var promotions = new Promotions(new List<IPromotionalDiscountRule>() { sut });
var lineItem = new LineItem("apple", 7, productCatalog, promotions);
var actual = sut.PromotionApplies(lineItem);
Assert.That(actual, Is.True);
}
public void When_no_promotion_applies()
{
var rule = new Mock<IPromotionalDiscountRule>();
rule.Setup(p => p.PromotionApplies(It.IsAny<LineItem>())).Returns(false);
var sut = new Promotions(new List<IPromotionalDiscountRule>() { rule.Object });
var productCatalog = new ProductCatalog();
productCatalog.AddProduct("apple", 0.75m);
var lineItem = new LineItem("apple", 7, productCatalog, sut);
var actual = sut.CalculatePromotionalCost(lineItem);
Assert.That(actual.DiscountedSubTotal, Is.EqualTo(lineItem.SubTotal));
Assert.That(actual.DiscountNote, Is.EqualTo(""));
}
public void When_calculating_rule()
{
var productCatalog = new ProductCatalog();
productCatalog.AddQuantityDiscount("apple", 3, 2);
productCatalog.AddProduct("apple", 0.75m);
var sut = new QuantityDiscountRule(productCatalog);
var promotions = new Promotions(new List<IPromotionalDiscountRule>() { sut });
var lineItem = new LineItem("apple", 7, productCatalog, promotions);
var actual = sut.Calculate(lineItem);
Assert.That(actual.DiscountedSubTotal, Is.EqualTo(4.75m));
Assert.That(actual.DiscountNote, Is.EqualTo("***Discount on apple: Buy 3 apple for $2.00, New Price $4.75, Savings $0.50"));
}
protected void Page_Load(object sender, EventArgs e)
{
// populate a new catalog
var catalog = new ProductCatalog();
catalog.AddProduct("Nukulizer 1945", 39.99M, "microwave.jpg");
catalog.AddProduct("Sir Mix-a-Lot", 599.99M, "mixer.jpg");
catalog.AddProduct("The Cylon", 1.99M, "toaster.jpg");
// write catalog to screen
Response.Write(catalog.GetCatalogHtml());
// write priciest product to screen AS a TaxableProduct
TaxableProduct priceyProduct = catalog.GetHighPricedProduct() as TaxableProduct;
if (priceyProduct != null)
{
StringBuilder builder = new StringBuilder();
builder.AppendFormat(
"<p>{0} is the most expensive product at {1:C} (including tax), {2:C} (excluding tax).</p>",
priceyProduct.Name, priceyProduct.TotalPrice, priceyProduct.Price);
Response.Write(builder.ToString());
}
}
public void When_calculating_rule()
{
var productCatalog = new ProductCatalog();
productCatalog.AddAdditionalItemDiscount("apple", 1, 1, 100);
productCatalog.AddProduct("apple", 0.75m);
var sut = new AdditionalItemDiscountRule(productCatalog);
var promotions = new Promotions(new List<IPromotionalDiscountRule>() { sut });
var lineItem = new LineItem("apple", 7, productCatalog, promotions);
var actual = sut.Calculate(lineItem);
Assert.That(actual.DiscountedSubTotal, Is.EqualTo(3m));
Assert.That(actual.DiscountNote, Is.EqualTo("***Discount on apple: Buy 1 apple get 1 at $0.00, New Price $3.00, Savings $2.25"));
}
public void When_promotion_applies()
{
var productCatalog = new ProductCatalog();
productCatalog.AddAdditionalItemDiscount("apple", 1, 1, 100);
productCatalog.AddProduct("apple", 0.75m);
var sut = new AdditionalItemDiscountRule(productCatalog);
var promotions = new Promotions(new List <IPromotionalDiscountRule>()
{
sut
});
var lineItem = new LineItem("apple", 7, productCatalog, promotions);
var actual = sut.PromotionApplies(lineItem);
Assert.That(actual, Is.True);
}
public void When_calculating_rule()
{
var productCatalog = new ProductCatalog();
productCatalog.AddAdditionalItemDiscount("apple", 1, 1, 100);
productCatalog.AddProduct("apple", 0.75m);
var sut = new AdditionalItemDiscountRule(productCatalog);
var promotions = new Promotions(new List <IPromotionalDiscountRule>()
{
sut
});
var lineItem = new LineItem("apple", 7, productCatalog, promotions);
var actual = sut.Calculate(lineItem);
Assert.That(actual.DiscountedSubTotal, Is.EqualTo(3m));
Assert.That(actual.DiscountNote, Is.EqualTo("***Discount on apple: Buy 1 apple get 1 at $0.00, New Price $3.00, Savings $2.25"));
}
public void When_calculating_rule()
{
var productCatalog = new ProductCatalog();
productCatalog.AddQuantityDiscount("apple", 3, 2);
productCatalog.AddProduct("apple", 0.75m);
var sut = new QuantityDiscountRule(productCatalog);
var promotions = new Promotions(new List <IPromotionalDiscountRule>()
{
sut
});
var lineItem = new LineItem("apple", 7, productCatalog, promotions);
var actual = sut.Calculate(lineItem);
Assert.That(actual.DiscountedSubTotal, Is.EqualTo(4.75m));
Assert.That(actual.DiscountNote, Is.EqualTo("***Discount on apple: Buy 3 apple for $2.00, New Price $4.75, Savings $0.50"));
}
public void When_no_promotion_applies()
{
var rule = new Mock <IPromotionalDiscountRule>();
rule.Setup(p => p.PromotionApplies(It.IsAny <LineItem>())).Returns(false);
var sut = new Promotions(new List <IPromotionalDiscountRule>()
{
rule.Object
});
var productCatalog = new ProductCatalog();
productCatalog.AddProduct("apple", 0.75m);
var lineItem = new LineItem("apple", 7, productCatalog, sut);
var actual = sut.CalculatePromotionalCost(lineItem);
Assert.That(actual.DiscountedSubTotal, Is.EqualTo(lineItem.SubTotal));
Assert.That(actual.DiscountNote, Is.EqualTo(""));
}
