public void Initialise()
{
_pinValidationService = Substitute.For <IPinValidationService>();
_pinValidationService.RequiredPinDigits.Returns(4);
_pinValidationService.GetEncryptedPin(TestPin).Returns(EncryptedPin.EncryptPin(TestPin));
_pinValidationService.IsPinCorrect(Arg.Any <EncryptedPin>(), TestPin).Returns(true);
}
public CashCard(string pin, IPinValidationService pinValidationService)
{
// This would probably in production come from a data store somewhere that tracked unique card ids but for this exercise this works almost as well as I don't have this store available
CardId = Guid.NewGuid();
Balance = 0;
_pinValidationService = pinValidationService;
Pin = _pinValidationService.GetEncryptedPin(pin);
}