The examiner will inform you that you've been successful (try not to scream!).
They will give a short debrief of your test (I'm sure you'll be listening!) - this will be on areas that you need to improve on.
They will then give you your pass certificate, driving test report and extra information on improving your driving further.
You will be given the option of sending your provisional licence to the DVLA yourself or letting the examiner send it for you.
The pass certificate is proof that you have passed your test.