public static List <object[]> GetTestProducts()
{
// List of test args - list of products to calculate the discount for, expected discount amount,
// and expected list of products affected or involved in the discount
var result = new List <object[]>()
{
// Empty basket, total discount should be zero
new object[] { new Product[0], 0, new Product[0] },
// Three products, no discount here
new object[] { new[] { ProductHelper.GetBread(), ProductHelper.GetButter(), ProductHelper.GetMilk() }, 0m, new Product[0] }
};
var products = new[] { ProductHelper.GetMilk(), ProductHelper.GetMilk(), ProductHelper.GetMilk(), ProductHelper.GetMilk(), ProductHelper.GetMilk() };
result.Add(new object[] { products, ProductHelper.GetMilk().Price, new[] { products[0], products[1], products[2], products[3] } });
products = new[] { ProductHelper.GetMilk(), ProductHelper.GetMilk(), ProductHelper.GetMilk(), ProductHelper.GetMilk(), ProductHelper.GetMilk(),
ProductHelper.GetMilk(), ProductHelper.GetMilk(), ProductHelper.GetMilk(), ProductHelper.GetMilk(), ProductHelper.GetMilk(), ProductHelper.GetBread(),
ProductHelper.GetButter() };
result.Add(new object[] { products, ProductHelper.GetMilk().Price * 2m,
new[] { products[0], products[1], products[2], products[3], products[4], products[5], products[6], products[7] } });
return(result);
}
/// <summary>
/// Data to test the total price of the items in the basket when no discounts are applied.
/// </summary>
/// <returns></returns>
public static List <object[]> GetTestProductsWithTheirPricesSum() => new List <object[]>()
{
// Empty basket, total should be zero
new object[] { new Product[0], 0 },
// Three products, total should be sum of their prices
new object[] { new[] { ProductHelper.GetBread(), ProductHelper.GetButter(), ProductHelper.GetMilk() }, 2.95m }
};
/// <summary>
/// Data to test the total price of the items in the basket when total discount of 2 is applied.
/// </summary>
/// <returns></returns>
public static List <object[]> GetTestProductsWithTheirPricesSumDiscountedBy2() => new List <object[]>()
{
// Empty basket, total discounted should be zero
new object[] { new Product[0], 0 },
// One product, total discounted should not be less than zero
new object[] { new[] { ProductHelper.GetButter() }, 0m },
// Three products, total discounted should be sum of their prices minus two
new object[] { new[] { ProductHelper.GetBread(), ProductHelper.GetButter(), ProductHelper.GetMilk() }, 0.95m }
};