public IbanFormatException(string message, IbanFormatViolation formatViolation, object actual, object expected )
: base(message)
{
FormatViolation = formatViolation;
ActualObject = actual;
ExpectedObject = expected;
}
/// <summary>
/// Validation of IBAN string
/// </summary>
/// <param name="iban">Iban string</param>
/// <param name="validationResult">Validation result</param>
/// <returns>True if IBAN string is valid, false if it encounters any problem</returns>
public static bool IsValid(string iban, out IbanFormatViolation validationResult)
{
bool result = false;
validationResult = IbanFormatViolation.NO_VIOLATION;
if (!string.IsNullOrEmpty(iban))
{
if (hasValidCountryCode(iban, out validationResult))
{
if (hasValidCheckDigit( iban, out validationResult))
{
BBanStructure structure = getBbanStructure( iban );
if (hasValidBbanLength(iban, structure, out validationResult))
{
if (hasValidBbanEntries(iban, structure, out validationResult))
{
if (hasValidCheckDigitValue(iban, out validationResult))
{
result = true;
}
}
}
}
}
}
else
{
validationResult = IbanFormatViolation.IBAN_NOT_EMPTY_OR_NULL;
}
return result;
}
public void IbanIsValidWithCountryCodeAndCheckDigitOnlyShouldReturnFalse()
{
IbanFormatViolation validationResult = IbanFormatViolation.NO_VIOLATION;
Assert.IsFalse(IbanUtils.IsValid("CZ48", out validationResult));
}
private static bool hasValidCountryCode(string iban, out IbanFormatViolation validationResult)
{
validationResult = IbanFormatViolation.NO_VIOLATION;
if (iban.Length < _COUNTRY_CODE_LENGTH)
{
validationResult = IbanFormatViolation.COUNTRY_CODE_TWO_LETTERS;
}
else
{
string countryCode = GetCountryCode( iban );
if (!countryCode.Equals( countryCode.ToUpper() ) || !char.IsLetter( iban[0] ) || !char.IsLetter( iban[1] ))
{
validationResult = IbanFormatViolation.COUNTRY_CODE_UPPER_CASE_LETTERS;
}
else
{
CountryCodeEntry countryEntry = CountryCode.GetCountryCode( countryCode );
if (countryEntry == null)
{
validationResult = IbanFormatViolation.COUNTRY_CODE_EXISTS;
}
else
{
BBanStructure structure = Bban.GetStructureForCountry( countryEntry );
if (structure == null)
{
validationResult = IbanFormatViolation.COUNTRY_CODE_UNSUPPORTED;
}
}
}
}
return ( validationResult == IbanFormatViolation.NO_VIOLATION );
}
public IbanFormatException(string message, IbanFormatViolation formatViolation, object actual) : base(message)
{
FormatViolation = formatViolation;
ActualObject = actual;
}
private static bool hasValidBbanEntryCharacterType(BBanEntry entry, string entryValue, out IbanFormatViolation validationResult)
{
validationResult = IbanFormatViolation.NO_VIOLATION;
switch (entry.CharacterType)
{
case BBanEntryCharacterType.A:
foreach (char c in entryValue.ToCharArray())
{
if (!char.IsUpper(c))
{
validationResult = IbanFormatViolation.BBAN_ONLY_UPPER_CASE_LETTERS;
break;
}
}
break;
case BBanEntryCharacterType.C:
foreach (char c in entryValue.ToCharArray())
{
if (!char.IsLetterOrDigit(c))
{
validationResult = IbanFormatViolation.BBAN_ONLY_DIGITS_OR_LETTERS;
break;
}
}
break;
case BBanEntryCharacterType.N:
foreach (char c in entryValue.ToCharArray())
{
if (!char.IsDigit(c))
{
validationResult = IbanFormatViolation.BBAN_ONLY_DIGITS;
break;
}
}
break;
}
return(validationResult == IbanFormatViolation.NO_VIOLATION);
}
public void IbanIsValidWithValidIbanShouldReturnTrue()
{
IbanFormatViolation validationResult = IbanFormatViolation.NO_VIOLATION;
Assert.IsTrue(IbanUtils.IsValid("CZ6508000000192000145399", out validationResult));
}
public void IbanIsValidWithInvalidAccountNumberShouldReturnFalse()
{
IbanFormatViolation validationResult = IbanFormatViolation.NO_VIOLATION;
Assert.IsFalse(IbanUtils.IsValid("DE8937040044053201300A", out validationResult));
}
public void IbanIsValidWithInvalidLengthShouldReturnFalse()
{
IbanFormatViolation validationResult = IbanFormatViolation.NO_VIOLATION;
Assert.IsFalse(IbanUtils.IsValid("AT621904300", out validationResult));
}
public IbanFormatException(string message, IbanFormatViolation formatViolation)
: base(message)
{
FormatViolation = formatViolation;
}
private static bool hasValidBbanEntryCharacterType (BBanEntry entry, string entryValue, out IbanFormatViolation validationResult)
{
validationResult = IbanFormatViolation.NO_VIOLATION;
switch (entry.CharacterType)
{
case BBanEntryCharacterType.A:
foreach (char c in entryValue.ToCharArray())
{
if (!char.IsUpper( c ))
{
validationResult = IbanFormatViolation.BBAN_ONLY_UPPER_CASE_LETTERS;
break;
}
}
break;
case BBanEntryCharacterType.C:
foreach (char c in entryValue.ToCharArray())
{
if (!char.IsLetterOrDigit( c ))
{
validationResult = IbanFormatViolation.BBAN_ONLY_DIGITS_OR_LETTERS;
break;
}
}
break;
case BBanEntryCharacterType.N:
foreach (char c in entryValue.ToCharArray())
{
if (!char.IsDigit( c ))
{
validationResult = IbanFormatViolation.BBAN_ONLY_DIGITS;
break;
}
}
break;
}
return ( validationResult == IbanFormatViolation.NO_VIOLATION );
}
private static bool hasValidBbanEntries(string iban, BBanStructure structure, out IbanFormatViolation validationResult)
{
validationResult = IbanFormatViolation.NO_VIOLATION;
string bban = GetBBan( iban );
int bbanOffset = 0;
foreach (BBanEntry entry in structure.Entries)
{
int entryLength = entry.Length;
string entryValue = bban.Substring( bbanOffset, entryLength );
bbanOffset += entryLength;
if (!hasValidBbanEntryCharacterType(entry, entryValue, out validationResult))
{
break;
}
}
return ( validationResult == IbanFormatViolation.NO_VIOLATION );
}
private static bool hasValidBbanLength(string iban, BBanStructure structure, out IbanFormatViolation validationResult)
{
validationResult = IbanFormatViolation.NO_VIOLATION;
int expectedBbanLength = structure.GetBBanLength();
string bban = GetBBan( iban );
int bbanLength = bban.Length;
if (expectedBbanLength != bbanLength)
{
validationResult = IbanFormatViolation.BBAN_LENGTH;
}
return ( validationResult == IbanFormatViolation.NO_VIOLATION );
}
private static bool hasValidCheckDigit(string iban, out IbanFormatViolation validationResult)
{
validationResult = IbanFormatViolation.NO_VIOLATION;
if ((iban.Length < ( _COUNTRY_CODE_LENGTH + _CHECK_DIGIT_LENGTH )))
{
validationResult = IbanFormatViolation.CHECK_DIGIT_TWO_DIGITS;
}
else
{
string checkDigit = GetCheckDigit( iban );
if (!char.IsDigit( checkDigit[0] ) || !char.IsDigit( checkDigit[1] ))
{
validationResult = IbanFormatViolation.CHECK_DIGIT_ONLY_DIGITS;
}
}
return (validationResult == IbanFormatViolation.NO_VIOLATION);
}
public void IbanIsValidWithEmptyCountryCodeShouldReturnFalse()
{
IbanFormatViolation validationResult = IbanFormatViolation.NO_VIOLATION;
Assert.IsFalse(IbanUtils.IsValid(" _6508000000192000145399", out validationResult));
}
public void IbanIsValidWithNonExistingCountryShouldReturnFalse()
{
IbanFormatViolation validationResult = IbanFormatViolation.NO_VIOLATION;
Assert.IsFalse(IbanUtils.IsValid("JJ611904300234573201", out validationResult));
}
public IbanFormatException(string message, IbanFormatViolation formatViolation, char invalidCharacter)
: base(message)
{
FormatViolation = formatViolation;
InvalidCharacter = invalidCharacter;
}
public void IbanIsValidWithInvalidBankCodeShouldReturnFalse()
{
IbanFormatViolation validationResult = IbanFormatViolation.NO_VIOLATION;
Assert.IsFalse(IbanUtils.IsValid("AT611C04300234573201", out validationResult));
}
public IbanFormatException(string message, IbanFormatViolation formatViolation, char invalidCharacter, BBanEntryType entryType, object actual)
: base(message)
{
FormatViolation = formatViolation;
InvalidCharacter = invalidCharacter;
BBanEntryType = entryType;
ActualObject = actual;
}
public void IbanIsValidWithInvalidNationalCheckDigitShouldReturnFalse()
{
IbanFormatViolation validationResult = IbanFormatViolation.NO_VIOLATION;
Assert.IsFalse(IbanUtils.IsValid("IT6010542811101000000123456", out validationResult));
}
public void IbanIsValidWithEmptyIBANShouldReturnFalse()
{
IbanFormatViolation validationResult = IbanFormatViolation.NO_VIOLATION;
Assert.IsFalse(IbanUtils.IsValid("", out validationResult));
}
private static bool hasValidBbanEntries(string iban, BBanStructure structure, out IbanFormatViolation validationResult)
{
validationResult = IbanFormatViolation.NO_VIOLATION;
string bban = GetBBan(iban);
int bbanOffset = 0;
foreach (BBanEntry entry in structure.Entries)
{
int entryLength = entry.Length;
string entryValue = bban.Substring(bbanOffset, entryLength);
bbanOffset += entryLength;
if (!hasValidBbanEntryCharacterType(entry, entryValue, out validationResult))
{
break;
}
}
return(validationResult == IbanFormatViolation.NO_VIOLATION);
}
public void IbanIsValidWithOneCharStringShouldReturnFalse()
{
IbanFormatViolation validationResult = IbanFormatViolation.NO_VIOLATION;
Assert.IsFalse(IbanUtils.IsValid("A", out validationResult));
}
public IbanFormatException(string message, IbanFormatViolation formatViolation) : base(message)
{
FormatViolation = formatViolation;
}
public void IbanIsValidWithNonDigitCheckDigitShouldReturnFalse()
{
IbanFormatViolation validationResult = IbanFormatViolation.NO_VIOLATION;
Assert.IsFalse(IbanUtils.IsValid("CZ4T", out validationResult));
}
public IbanFormatException(string message, IbanFormatViolation formatViolation, char invalidCharacter) : base(message)
{
FormatViolation = formatViolation;
InvalidCharacter = invalidCharacter;
}
private static bool hasValidCheckDigitValue(string iban, out IbanFormatViolation validationResult)
{
validationResult = IbanFormatViolation.NO_VIOLATION;
if (calculateMod( iban ) != 1)
{
validationResult = IbanFormatViolation.IBAN_INVALID_CHECK_DIGIT_VALUE;
}
return ( validationResult == IbanFormatViolation.NO_VIOLATION );
}
