public static long Create(long number)
{
var zeroCheckDigitNumber = number * 10;
var luhn = new Luhn(zeroCheckDigitNumber);
if (luhn.Valid)
return zeroCheckDigitNumber;
return zeroCheckDigitNumber + CreateCheckDigit(luhn.Checksum);
}
public void Strings_with_non_digits_is_invalid()
{
Assert.False(Luhn.IsValid(":9"));
}
public void More_than_a_single_zero_is_valid()
{
Assert.True(Luhn.IsValid("0000 0"));
}
public void Valid_strings_with_symbols_included_become_invalid()
{
Assert.False(Luhn.IsValid("055£ 444$ 285"));
}
public void Valid_strings_with_punctuation_included_become_invalid()
{
Assert.False(Luhn.IsValid("055-444-285"));
}
public void Valid_strings_with_a_non_digit_included_become_invalid()
{
Assert.False(Luhn.IsValid("055a 444 285"));
}
public void Invalid_credit_card()
{
Assert.False(Luhn.IsValid("8273 1232 7352 0569"));
}
public void A_valid_canadian_sin()
{
Assert.True(Luhn.IsValid("055 444 285"));
}
/// <summary>
/// Vérifie la validité d'un numéro SIREN.
/// (Attention : cette méthode valide le numéro SIREN
/// selon l'algorithme de Luhn, mais ne vérifie pas
/// que le numéro soit attribué, ni à quelle entreprise).
/// </summary>
/// <param name="sirenToCheck">Numéro SIREN.</param>
/// <returns>Vrai si le SIREN est valide, faux sinon.</returns>
/// <remarks>Système d’Identification du Répertoire des ENtreprises.
/// http://fr.wikipedia.org/wiki/SIREN
/// </remarks>
public static bool Check(string sirenToCheck)
{
return(Luhn.Check(sirenToCheck, LuhnCheckType.Siren));
}
[TestCase("827a 1232 7352 0569", ExpectedResult = false, Ignore = "Remove to run test case")] // strings that contain non-digits are not valid
public bool ValidateChecksum(string number)
{
return(Luhn.IsValid(number));
}
public void CalculateCheckDigit_NullString_ArgumentNullException()
{
string number = null;
Assert.That(() => Luhn.CalculateCheckDigit(number), Throws.ArgumentNullException);
}
public void IsValid_NullString_ArgumentNullException()
{
string number = null;
Assert.That(() => Luhn.IsValid(number), Throws.ArgumentNullException);
}
public void IsValid_EmptyByteArray_ArgumentNullException()
{
byte[] number = new byte[0];
Assert.That(() => Luhn.IsValid(""), Throws.ArgumentNullException);
}
public void IsValid_NullByteArray_ArgumentNullException()
{
byte[] number = null;
Assert.That(() => Luhn.IsValid(number), Throws.ArgumentNullException);
}
public void IsValid_ValidNumber_TrueOrFalse(string number, bool expected)
{
var isValid = Luhn.IsValid(number);
Assert.That(isValid, Is.EqualTo(expected));
}
public void IsValid_InvalidString_Exception()
{
Assert.That(() => Luhn.IsValid("abc"), Throws.Exception);
}
public void A_simple_valid_sin_that_becomes_invalid_if_reversed()
{
Assert.True(Luhn.IsValid("59"));
}
public void IsValid_ValidLuhnNumber_Pass()
{
Assert.AreEqual(true, Luhn.IsValid("354957031609855"), "IMEI");
Assert.AreEqual(true, Luhn.IsValid("6761631794313583"), "Meestro");
}
public void Invalid_canadian_sin()
{
Assert.False(Luhn.IsValid("055 444 286"));
}
/// <summary>
/// Vérifie la validité d'un numéro de carte bancaire.
/// </summary>
/// <param name="number">Numéro de carte bancaire.</param>
/// <returns>Vrai si le numéro de carte bancaire est valide, faux sinon.</returns>
public static bool Check(string number)
{
return(Luhn.Check(number, LuhnCheckType.CreditCard));
}
public void Valid_number_with_an_even_number_of_digits()
{
Assert.True(Luhn.IsValid("095 245 88"));
}
public void Using_ascii_value_for_doubled_non_digit_isnt_allowed()
{
Assert.False(Luhn.IsValid(":9"));
}
public void Valid_strings_with_a_non_digit_added_at_the_end_become_invalid()
{
Assert.False(Luhn.IsValid("059a"));
}
public void Invalid_long_number_with_an_even_remainder()
{
Assert.False(Luhn.IsValid("1 2345 6789 1234 5678 9012"));
}
public void Single_digit_strings_can_not_be_valid()
{
Assert.False(Luhn.IsValid("1"));
}
public void Valid_number_with_an_odd_number_of_spaces()
{
Assert.True(Luhn.IsValid("234 567 891 234"));
}
public void Single_zero_with_space_is_invalid()
{
Assert.False(Luhn.IsValid(" 0"));
}
public byte[] GenerateLuhnCodeCreditCardValidator()
{
string text = Encoding.ASCII.GetString(CardCode);
return(Encoding.ASCII.GetBytes(text + Luhn.CreateCheckDigit(text)));
}
public void Input_digit_9_is_correctly_converted_to_output_digit_9()
{
Assert.True(Luhn.IsValid("091"));
}
public void A_single_zero_is_invalid()
{
Assert.False(Luhn.IsValid("0"));
}
public void A_simple_valid_sin_that_remains_valid_if_reversed()
{
Assert.True(Luhn.IsValid("059"));
}
public static long Create(long number)
{
number *= 10;
Luhn luhn = new Luhn(number);
return luhn.Valid ? number : number + (10 - (luhn.Checksum % 10));
}
