public void ParseSignature_returns_parts()
{
var(tx, app) = Duo.ParseSignature("tx:app");
Assert.Equal("tx", tx);
Assert.Equal("app", app);
}
public void ParseSignature_throws_on_invalid_signature(string invalid)
{
Exceptions.AssertThrowsInternalError(() => Duo.ParseSignature(invalid), "signature is invalid");
}