public void MinimalInput_ForSetPricing_ProducesCorrectPrice(
IEnumerable <Product> products, Pricing pricing, Money total)
{
// Arrange
var sut = new PointOfSaleTerminal(pricing);
// Act
sut.ScanMany(products);
var actualTotal = sut.CalculateTotal();
// Assert
actualTotal.Should().NotBeNull().And.BeEquivalentTo(total);
}