private static FiscalReceiptTotal ModifyValidTotal(Action <FiscalReceiptTotal> modify)
        {
            var total = FiscalReceiptTestData.ValidTotal();

            modify(total);
            return(total);
        }
 public void Validate_Returns_True_For_Valid_Total()
 {
     Assert.True(FiscalReceiptTotalValidator.Validate(FiscalReceiptTestData.ValidTotal()));
 }