public void FixedPriceLineItemHasCorrectPriceTest()
{
// Arrange
const int id = 1;
const int quantity = 3;
ILineItem fixedPriceLineItem = new FixedPriceLineItem(id, quantity);
const decimal expectedPrice = 30m;
// Act
decimal actualPrice = fixedPriceLineItem.GetPrice();
// Assert
Assert.That(actualPrice, Is.EqualTo(expectedPrice));
}
