public void CreditCardStatementHasCorrectDueDateFromOperationDateNextMonth()
        {
            CreditCardInfo creditCard    = newCreditCard.GetInfo(false);
            DateTime       operationDate = new DateTime(DateTime.Today.Year, DateTime.Today.Month, 18);

            CreditCardStatement statement = CreditCardService.GetOrCreateStatementFromOperationDate(creditCard, operationDate);

            Assert.AreEqual(statement.DueDate, new DateTime(DateTime.Today.Year, DateTime.Today.Month + 1, 5));
        }