public void GetBasketAggregation_WhenCalledWithInvalidBasketItem_ThrowsException()
{
var basketItems = new List <int>()
{
1, 2, 6
};
var booksInSeries = 5;
Assert.ThrowsException <Exception>(() => _basketHelper.GetBasketAggregation(basketItems, booksInSeries));
}
private decimal GetPrice(List <int> basket, int numberOfBooksInSeries)
{
// group identical items in basket
var groupedBasket = _basketHelper.GetBasketAggregation(basket, numberOfBooksInSeries);
// get all combinations for consideration
var allCombos = _basketSplitter.GetBasketCombinations(groupedBasket, numberOfBooksInSeries);
// return the lowest price
return(_priceCalculator.GetLowestPrice(allCombos));
}
public void GetLowestPrice_WhenCalledWithBasketCombinationsMultiple1_ReturnsCorrectPrice()
{
var basketItems = new List <int>()
{
1, 1, 2, 2, 3, 3, 4, 5
};
var booksInSeries = 5;
var groupedBasket = _basketHelper.GetBasketAggregation(basketItems, booksInSeries);
var allCombos = _basketSplitter.GetBasketCombinations(groupedBasket, booksInSeries);
var price = _priceCalculator.GetLowestPrice(allCombos);
Assert.AreEqual(51.2m, price);
}
