For a regular license (B) we also have to drive 30-40 hours before attempting either written test or driving test. It's a pretty good start. If you fuck up, it's a lot more dough and a lot more hours.
I did in the last roundabout before the evaluation station during my first test, going slow but it was frozen to a glimmer so I just slid in there halfway and barely avoided a Volvo coming in. Enough to fail, though, and I got four more driving lessons, $40 a pop, not fun.