My online test was only basic checking (you recive a sequence of letters or number and you are to match it to the identical one out of four options given). I have no idea how it went (I belive it went quite bad though) but so far I've not heard of anyone from PPRune failing the online test (pre stage1 test) so I'm not sure it's acctually a "real" test or if it's just for statistics (like comparison to see if the ones who do well on the online test usually go far in the selection process etc).