public void ThrowsException_When_Price_Less_Than_Zero()
{
//Arrange
IDiscountCalculator calc = GetDiscounter();
//Act
decimal finalPrice = calc.GetDiscountedValue(-10);
}
public void Apply_Default_Discount_For_Amount_Of_100()
{
//Arrange
IDiscountCalculator calc = GetDiscounter();
//Act
decimal finalPrice = calc.GetDiscountedValue(100);
//Assert
Assert.AreEqual(80, finalPrice);
}
public decimal GetTotalValueOfProducts(IEnumerable <Product> products)
{
decimal price = products.Select(o => o.Price).DefaultIfEmpty(0).Sum(o => o);
return(price = _disc.GetDiscountedValue(price));
}