Originally Posted by IstKong

Previously, you were able to do MEX-AMS-CDG on the same ticket without being tested. You don't even have to do the effort to buy the "risk country" itinerary on another ticket to exploit this loophole.

They test only direct arrival from "risk countries", when the french airport is your final destination. Even if you do MEX-CDG-MAD you wont be tested.

And the most stupid thing that I think I saw last time (to be verified), is that you are not tested if transiting to a third airport in France. For instance GRU-CDG-NCE you won't be tested.