protected virtual bool CalculateNationalCheckDigits_Valid_Iban_Test_Success(string iban)
{
var countryCode = iban.Substring(0, 2);
var checkDigits = iban.Substring(2, 2);
var bban = iban.Substring(4);
var ibanWithCheckCodeRemoved = string.Concat(countryCode, "00", bban);
var calculatedCheckDigits = Country.CalculateNationalCheckDigits(ibanWithCheckCodeRemoved);
Assert.AreEqual(checkDigits, calculatedCheckDigits);
return(true);
}