public void CalculateCostOfOverweightedParcel()
{
var costCalculator = new OrderDeliveryCostCalculator(
_sizeCalculatorMock.Object,
_parcelCostCalculatorMock.Object,
_weightLimitCalculatorMock.Object,
_overweightFeeCalculatorMock.Object);
var overweightedParcel = new Parcel(new ParcelSize(1, 1, 1), 10);
var overweightFee = 5m;
var weightLimit = 5;
_sizeCalculatorMock.Setup(c => c.CalculateParcelSizeFactor(It.IsAny <ParcelSize>())).Returns(ParcelSizeFactor.Small);
_parcelCostCalculatorMock.Setup(c => c.CalculateDeliveryCost(It.IsAny <ParcelSizeFactor>())).Returns(0);
_weightLimitCalculatorMock.Setup(c => c.CalculateWeightLimit(It.IsAny <ParcelSizeFactor>())).Returns(weightLimit);
_overweightFeeCalculatorMock.Setup(c => c.CalculateOverWeightFee(It.IsAny <ParcelSizeFactor>())).Returns(overweightFee);
var deliverCost = costCalculator.CalculateParcelCost(overweightedParcel);
Assert.AreEqual((overweightedParcel.Weight - weightLimit) * overweightFee, deliverCost);
}
