public void Add_IsNull_ExceptionThrown()
{
var sut = new ShoppingBasketService(_productService.Object);
// Assert
Assert.Throws <NullReferenceException>(() => sut.AddProducts(null));
}
public void RandomProductFor_PercentageDiscount_CalculateAppliedDiscount_With10PercentDiscount(List <Product> products, PercentageDiscount percentageDiscount)
{
var discountRate = 0.10m;
// Arrange
percentageDiscount._percentage = discountRate;
var productNames = products.Select(x => x.Name).ToList();
productNames.Add(percentageDiscount._discountedProduct.Name);
var disconts = new List <IDiscount>();
disconts.Add(percentageDiscount);
_productService.Setup(x => x.GetProductByName(percentageDiscount._discountedProduct.Name)).Returns(percentageDiscount._discountedProduct);
foreach (var item in products)
{
_productService.Setup(x => x.GetProductByName(item.Name)).Returns(item);
}
var sut = new ShoppingBasketService(_productService.Object);
var basket = sut.AddProducts(productNames.ToArray());
var sutD = new DiscountService();
// Act
var result = sutD.CalculateBasketDiscounts(basket, disconts);
var subTotalPrice = basket.Sum(item => item.Product.Price * item.Quantity);
var totalPrice = subTotalPrice - result.Sum(item => item.Amount);
var discontMessage = string.Join(" --- ", result.Select(x => x.Description));
// Assert
Assert.Equal(subTotalPrice - totalPrice, percentageDiscount._discountedProduct.Price * percentageDiscount._percentage);
}
public void GetProductByName_Is_Null_ExceptionThrown(Product product, string exeptedProductName)
{
// Arrange
var productName = product.Name;
var productNames = new string[] { exeptedProductName };
_productService.Setup(x => x.GetProductByName(productName)).Returns(product);
var sut = new ShoppingBasketService(_productService.Object);
// Assert
Assert.Throws <NotSupportedException>(() => sut.AddProducts(productNames));
}
public void Can_Add_One_Product(Product product)
{
// Arrange
var productName = product.Name;
var productNames = new string[] { productName };
_productService.Setup(x => x.GetProductByName(productName)).Returns(product);
var sut = new ShoppingBasketService(_productService.Object);
// Act
var result = sut.AddProducts(productNames);
// Assert
Assert.Equal(result.Count, 1);
}
public void Add_Product_And_Check_Quantity(Product product)
{
// Arrange
var productName = product.Name;
var productNames = new string[] { productName, productName };
_productService.Setup(x => x.GetProductByName(productName)).Returns(product);
var sut = new ShoppingBasketService(_productService.Object);
// Act
var result = sut.AddProducts(productNames);
var productQuantity = result.SingleOrDefault(x => x.Product.Name == productName);
// Assert
Assert.Equal(productQuantity.Quantity, 2);
}
public void AddProducts_And_CheckProductsCount(List <Product> products)
{
// Arrange
var productNames = products.Select(x => x.Name).ToArray();
foreach (var item in products)
{
_productService.Setup(x => x.GetProductByName(item.Name)).Returns(item);
}
var sut = new ShoppingBasketService(_productService.Object);
// Act
var result = sut.AddProducts(productNames);
// Assert
Assert.Equal(result.Count, products.Count);
}