public void TimesApplicable_WhenFourButtersAndTwoBreads_ThereAreTwoDiscounts()
{
var items = new List <string> {
"Butter", "Butter", "Butter", "Butter", "Bread", "Bread"
};
var sut = new BuyTwoButtersAndGetABreadHalfPriceOffer();
Assert.That(sut.TimesApplicable(items), Is.EqualTo(2));
}
public void TimesApplicable_WhenTwoButtersAndNoBread_ThereIsNoDiscount()
{
var items = new List <string> {
"Butter", "Butter"
};
var sut = new BuyTwoButtersAndGetABreadHalfPriceOffer();
Assert.That(sut.TimesApplicable(items), Is.EqualTo(0));
}
public void DiscountItemAndProprotion_ReturnsResult()
{
var sut = new BuyTwoButtersAndGetABreadHalfPriceOffer();
Assert.That(sut.DiscountItemAndProportion(), Is.EqualTo(new DiscountItemAndProportion("Bread", 0.5m)));
}
