public void CannotUpdateBookWithNegativePrice()
{
Assert.Catch(() =>
{
var x = new Book("Real-Time Rendering", "978-1568814247", 78.95m, Currency.EUR);
x.UpdatePrice(-9.90m, Currency.CHF);
});
}
public void CanUpdateBookWithPrice()
{
var x = new Book("Real-Time Rendering", "978-1568814247", 78.95m, Currency.EUR);
x.UpdatePrice(39.90m, Currency.CHF);
Assert.IsTrue(x.Price.Amount == 39.90m);
Assert.IsTrue(x.Price.Unit == Currency.CHF);
}
