public void InvoiceHtmlStringWithEmptyOrder()
{
var testInvoice = new PriceLogic.Invoice.Invoice(123, new List <OrderItem>());
var expected = "<table><tr> <td width=100px>Total price: 0$ </td> </tr></table>";
Assert.AreEqual(testInvoice.GenerateInvoiceHtmlString().Value, expected);
}
public void InvoiceHtmlStringWithNullOrder()
{
var testInvoice = new PriceLogic.Invoice.Invoice(123, null);
Assert.Throws <NullReferenceException>(() => testInvoice.GenerateInvoiceHtmlString());
}