public void CalculateDiscount_ReturnZero_WithEmptyCrat()
{
//Fixture setup
var shoppingCart = GetShoppingCartWithNoItems();
calculateDiscount calDiscount = new calculateDiscount(shoppingCart);
//Exercise system
var actual = calDiscount.CalculateDiscount();
//verify outcome
Assert.AreEqual(actual, 0);
}
public void CalculatDiscount_ReturnCorrectResult_calculatedPerType_WithOneItem(double discount, int quantity, double expected)
{
//Fixture setup
var shoppingCart = GetShoppingCartWithOneItem(discount, quantity);
shoppingCart.AddDiscount(new discount(shopping_cart.DiscountType.perType, 0.0));
calculateDiscount calDiscount = new calculateDiscount(shoppingCart);
//Exercise system
var actual = calDiscount.CalculateDiscount();
//verify outcome
Assert.AreEqual(actual, expected);
}
public void CalculateDiscount_ReturnCorrectResult_calculatedPerItem_WithManyItems(double[] discounts, int[] quantities, double expected)
{
//Fixture setup
var shoppingCart = GetShoppingCartWithManyItems(discounts, quantities);
shoppingCart.AddDiscount(new discount(shopping_cart.DiscountType.perItem, 0.0));
calculateDiscount calDiscount = new calculateDiscount(shoppingCart);
//Exercise system
var actual = calDiscount.CalculateDiscount();
//verify outcome
Assert.AreEqual(actual, expected);
}
