Yesterday I took my Duolingo test. Got a 10/10 certificate, which is now on my oDesk profile. It looks good, indeed... but I must agree with Dianne: the test is way too simple (imho). For instance, I had to repeat the following sentence, among others: "This is a pen". THIS IS A PEN?!? Seriously? How is it supposed to qualify me as "fluent"?
The good thing? It is free (for now). I can't afford a "real" exam (for now), and I don't have the time to take it, anyway... I guess that Duolingo will do (for now)... better than nothing.