public static int Checkout(string skus)
{
var checkoutPricer = new CheckoutPricer(
new InMemoryPriceDatabase());
return(checkoutPricer.CalculatePrice(skus));
}
public void ItHasTheCorrectPrice()
{
var priceDatabase = new Mock <IPriceDatabase>();
priceDatabase.Setup(x => x.GetIndividualPriceFor('X'))
.Returns(10);
var checkoutPricer = new CheckoutPricer(priceDatabase.Object);
Assert.That(checkoutPricer.CalculatePrice("X"), Is.EqualTo(10));
}
public void ThePriceIsMinusOne()
{
var priceDatabase = new Mock <IPriceDatabase>();
priceDatabase.Setup(x => x.GetIndividualPriceFor('X'))
.Throws(new SkuInvalidException('X'));
var checkoutPricer = new CheckoutPricer(priceDatabase.Object);
Assert.That(checkoutPricer.CalculatePrice("X"), Is.EqualTo(-1));
}
public void ThePriceIsTheSumOfTheTwoSkuPrices()
{
var priceDatabase = new Mock <IPriceDatabase>();
priceDatabase.Setup(x => x.GetIndividualPriceFor('X'))
.Returns(10);
priceDatabase.Setup(x => x.GetIndividualPriceFor('Y'))
.Returns(5);
var checkoutPricer = new CheckoutPricer(priceDatabase.Object);
Assert.That(checkoutPricer.CalculatePrice("XY"), Is.EqualTo(15));
}
public void BuyingSeveralItemsHasTheCorrectPrice(string skus, int correctPrice)
{
var checkoutPricer = new CheckoutPricer(priceDatabase.Object);
Assert.That(checkoutPricer.CalculatePrice(skus), Is.EqualTo(correctPrice));
}
public void TheCustomerIsNotRippedOff(string skus, int correctPrice)
{
var checkoutPricer = new CheckoutPricer(priceDatabase.Object);
Assert.That(checkoutPricer.CalculatePrice(skus), Is.EqualTo(correctPrice));
}
