/// <summary>
/// <see cref="IAccountNumberFactory.GetAccountNumber"/>
/// </summary>
/// <param name="accountNumber">sull account number</param>
/// <returns>account number object</returns>
public AccountNumber GetAccountNumber(string accountNumber)
{
if (accountNumber == null || !_controlSumCalculator.IsValid(accountNumber))
{
return(null);
}
var checksum = accountNumber.Substring(0, 2);
var bankId = accountNumber.Substring(2, 8);
var innerNumber = accountNumber.Substring(10);
return((_controlSumCalculator.IsValid(accountNumber)) ?
new AccountNumber(bankId, innerNumber, checksum) : null);
}
public void IsAccountNumberValid_validAccountNumber_ReturnsTrue()
{
Assert.IsTrue(_controlSumCalculator.IsValid($"{ControlSum}{BankId}{AccountNumber}"));
}