public void NoTieneDescuentoCuandoElMontoEsMenorAMil()
        {
            OrderServices orderServices = new OrderServices(new MyDummyBd());

            var discount = orderServices.CalculateDiscount(900, CustomerCategory.Good);

            Assert.AreEqual(0, discount);
        }
        public void TieneDescuentoSiElMontoEsMayorAMil()
        {
            var stub = new Mock<IDiscountDB>();
            stub.Setup(x => x.GetDiscount(CustomerCategory.Good)).Returns(10);

            OrderServices orderServices = new OrderServices(stub.Object);

            var discount = orderServices.CalculateDiscount(1900, CustomerCategory.Good);

            Assert.AreEqual(190, discount);
        }