public void Can_FirstProductCalculator_GetSum()
{
Mock <IDiscount> discount = new Mock <IDiscount>();
IProductCalculator calculator = new FirstProductCalculator(discount.Object);
decimal sum = calculator.TotalSum(list);
Assert.AreEqual(1000, sum);
}
public void Can_FirstProductCalculator_GetSumWithDiscount()
{
Mock <IDiscount> discount = new Mock <IDiscount>();
discount.Setup(x => x.ApplyDiscount(It.IsAny <decimal>())).Returns <decimal>(x => x * 0.9m);
IProductCalculator calculator = new FirstProductCalculator(discount.Object);
decimal sum = calculator.TotalSumWithDiscount(1000);
Assert.AreEqual(900, sum);
}
