There is a ‘signal’ test to make sure you know your road signs, then there’s a parking test that involves a reverse park.
Once you pass them both, there’s the main driving test that the driving school also arranges for you.
You will be expected to perform a number of lane changes and do a U-turn. Once back at the centre, you will then sit in a waiting room. If you are unlucky enough to fail, there is no system of appeals – just take your form, go home and sulk.
Do not argue with the examiner, even if you think they've been unfair, as you might get them next time too. If you do pass the test, then your licence will be issued to you right then at the centre.