public void HalfPriceDiscount_CalculateAppliedDiscount_WithQuantity_4OrMore()
{
// Arrange
var percentageDiscount = new HalfPriceDiscount(new ProductQuantity
{
Product = new Product
{
ProductId = 2,
Name = "Beans"
},
Quantity = 4
},
new DiscountedProduct()
{
ProductId = 3,
Name = "Bread"
});
// Act
var result = percentageDiscount.DiscountsApplicable(ProductQuantityHelper.CreateProductsForHalfPriceDiscounts()).ToArray();
// Assert
Assert.AreEqual(result.Any(), true);
Assert.AreEqual(result[0].Type, DiscountType.HalfPrice);
Assert.AreEqual(result[0].Amount, 0.40m);
Assert.AreEqual(result[0].Text, "Bread 50% OFF: - 40p");
}
public void ShoppingBasket_CheckCalculateTotalPrice_WithNoDiscounts()
{
// Arrange
var shoppingBasket = new ShoppingBasket(new List <IDiscount>());
shoppingBasket.AddProducts(ProductQuantityHelper.CreateProducts());
// Act
var result = shoppingBasket.SubTotal - shoppingBasket.GetBasketDiscounts().Sum(item => item.Amount);
// Assert
Assert.AreEqual(result, 3.23m);
}
public void ShoppingBasket_AddProducts_CheckProductsCount(int productsToCreate)
{
// Arrange
var shoppingBasket = new ShoppingBasket(new List <IDiscount>());
shoppingBasket.AddProducts(ProductQuantityHelper.CreateProducts(productsToCreate));
// Act
var result = shoppingBasket.ProductCount;
// Assert
Assert.AreEqual(result, productsToCreate);
}
public void PercentageDiscount_CalculateAppliedDiscount_With50PercentDiscount()
{
// Arrange
var percentageDiscount = new PercentageDiscount(DiscountHelper.CreateDiscountedProducts(), 0.50m);
// Act
var result = percentageDiscount.DiscountsApplicable(ProductQuantityHelper.CreateProducts()).ToArray();
// Assert
Assert.AreEqual(result.Any(), true);
Assert.AreEqual(result[0].Type, DiscountType.Percentage);
Assert.AreEqual(result[0].Amount, 0.16m);
Assert.AreEqual(result[0].Text, "Apples 50% OFF: - 16p");
}
public void PercentageDiscount_NoDiscountApplied_With10PercentDiscount()
{
// Arrange
var percentageDiscount = new PercentageDiscount(new DiscountedProduct
{
ProductId = 4,
Name = "Milk"
}, 0.10m);
// Act
var result = percentageDiscount.DiscountsApplicable(ProductQuantityHelper.CreateProducts()).ToArray();
// Assert
Assert.AreEqual(result.Any(), false);
}
public void ShoppingBasket_CheckCalculateTotalPrice_WithHalfPriceDiscount()
{
// Arrange
var halfPriceDiscount = new Mock <IDiscount>();
halfPriceDiscount.Setup(mock => mock.DiscountsApplicable(It.IsAny <IEnumerable <ProductQuantity> >()))
.Returns(DiscountHelper.CreateHalfPriceAppliedDiscount);
var shoppingBasket = new ShoppingBasket(new List <IDiscount> {
halfPriceDiscount.Object
});
shoppingBasket.AddProducts(ProductQuantityHelper.CreateProducts());
// Act
var discountsTotal = shoppingBasket.GetBasketDiscounts().Sum(item => item.Amount);
var result = shoppingBasket.SubTotal - discountsTotal;
// Assert
Assert.AreEqual(result, 2.83m);
}
public void ShoppingBasket_GetBasketDiscounts_WithNoDiscountApplied()
{
// Arrange
var discounts = new Mock <IDiscount>();
discounts.Setup(mock => mock.DiscountsApplicable(It.IsAny <IEnumerable <ProductQuantity> >()))
.Returns(DiscountHelper.CreateNoDiscountApplied);
var shoppingBasket = new ShoppingBasket(new List <IDiscount> {
discounts.Object
});
shoppingBasket.AddProducts(ProductQuantityHelper.CreateProducts());
// Act
var result = shoppingBasket.GetBasketDiscounts().ToArray();
// Assert
Assert.AreEqual(result.Any(), true);
Assert.AreEqual(result[0].Type, DiscountType.None);
Assert.AreEqual(result[0].Amount, 0.00m);
Assert.AreEqual(result[0].Text, "(No offers available)");
}
public void HalfPriceDiscount_NoDiscountApplied_WithQuantity_20rMore()
{
// Arrange
var percentageDiscount = new HalfPriceDiscount(new ProductQuantity
{
Product = new Product
{
ProductId = 2,
Name = "Beans"
},
Quantity = 2
},
new DiscountedProduct()
{
ProductId = 4,
Name = "Milk"
});
// Act
var result = percentageDiscount.DiscountsApplicable(ProductQuantityHelper.CreateProducts()).ToArray();
// Assert
Assert.AreEqual(result.Any(), false);
}
