public void CreateInvoice() { var id = DB.Insert(accountID, shippID, quantity, sCost, pCost, tax, total, Convert.ToString(orderDate), Convert.ToString(payDate), Convert.ToString(arrivalDate), Convert.ToString(postDate), status, mail); var result = DB.GetInvoiceBy(id); Assert.AreEqual(ExpectedInt, id); Assert.AreEqual(Expected, result.GetEmail()); }