public void BasicAuthCodeTest()
{
var secretKey = "PJWUMZKAUUFQKJBAMD6VGJ6RULFVW4ZH";
var expected = "551508";
var tfa = new TwoFactorAuthenticator();
long currentTime = 1416643820;
// I actually think you are supposed to divide the time by 30 seconds? Maybe need an overload that takes a DateTime?
var actual = tfa.GeneratePinAtInterval(secretKey, currentTime, 6);
actual.ShouldBe(expected);
}