Other sports i've competed in have been stringently drug tested (out of competition testing at random, and in competition)...

Are ADCC/Fila drug tested? I'm not sure if there's a governing body so I can see that the carrying out of testing and enforcement may be difficult.

Is it an issue in grappling? I suppose it makes less of a difference than in powerlifting, olympic weightlifting and athletics due to the greater emphasis on skill rather than speed/strength (although this obviously is needed!)

If there is no testing, should there be?