public void CalculateTotalPriceUsingTax(decimal productPrice, int taxRateValue, decimal expectedTotalPrice)
{
// Arrange
var product = new Product(
new ProductName("C# for dummies"),
new Upc(123),
new Price(productPrice));
var taxRate = new TaxRate(taxRateValue);
// Act
var totalPrice = product.Apply(taxRate);
// Assert
totalPrice.PriceBeforeTax.Value.ShouldBe(productPrice);
totalPrice.PriceAfterTax.Value.ShouldBe(expectedTotalPrice);
totalPrice.TaxRate.Value.ShouldBe(taxRateValue);
}
public void CalculateDiscountFor(decimal productPrice, int taxRateValue, int discountValue, decimal expectedTotalPrice)
{
// Arrange
var product = new Product(
new ProductName("C# for dummies"),
new Upc(123),
new Price(productPrice));
var taxRate = new TaxRate(taxRateValue);
var discount = new Discount(discountValue);
// Act
var regularPrice = product.Apply(taxRate);
var totalPrice = regularPrice.Apply(discount);
// Assert
totalPrice.PriceAfterDiscount.Value.ShouldBe(expectedTotalPrice);
}
