public void It_should_create_coupon_with_rate_and_minimum_amount()
{
//Arrange
double minimumCartAmount = 100;
int rateOfDiscount = 10;
//Act
var discountType = DiscountType.Rate;
var coupon = RateCoupon.Create(minimumCartAmount, rateOfDiscount);
//Verify
coupon.DiscountType.Should().Be(discountType);
}
public void It_should_not_apply_coupons_when_mimimum_amount_constraint_met()
{
//Arrange
Category category = new Category("food");
double minimumCartAmount = 200;
int rateOfDiscount = 60;
var coupon = RateCoupon.Create(minimumCartAmount, rateOfDiscount);
var cart = new Cart();
Product apple = new Product("Elma", 20, category);
cart.AddItem(apple, 5);
//Act
cart.ApplyCoupon(coupon);
//Verify
cart.TotalAmountAfterDiscounts.Should().Be(100);
cart.CouponDiscount.Should().Be(0);
}
