public void GivenParcelWithSumOfItems_ThenShippingPriceIsCorrect(
Parcel parcel,
decimal shippingCosts
)
{
var sut = new ShippingCostsService();
var parcelShippingCosts = sut.CalculateShippingCosts(
parcel
);
((decimal)parcelShippingCosts).Should().Be(
shippingCosts,
$"because the cost of shipping {parcel.TotalWeight} grams is {shippingCosts} euro"
);
}
public void GivenParcelWithSumOfItemsIsZeroGrams_ThenShippingPriceIsZeroEuro()
{
var parcel = new Parcel(
new Item(0),
new Item(0)
);
var sut = new ShippingCostsService();
var parcelShippingCosts = sut.CalculateShippingCosts(
parcel
);
((decimal)parcelShippingCosts).Should().Be(
0m,
"because the cost of shipping 1 kilo is 2 euro"
);
}