public void GivenDiscountIsAppliedToItemCorrectTotalIsReturned()
{
//Arrange
_discounts.Add(new Discount {
Sku = "B", Quantity = 3, Value = 40m
});
_items.Add(new Item {
Sku = "B", Price = 15m
});
_items.Add(new Item {
Sku = "B", Price = 15m
});
_items.Add(new Item {
Sku = "B", Price = 15m
});
//Act
_checkout.AddDiscounts(_discounts);
_checkout.Scan(_items);
var result = _checkout.Total();
//Arrange
Assert.Equal(40m, result);
}