Matey you can read the standards document detailing exactly what you will be tested on . The examiner will brief you thoroughly prior to the flight , there are no dirty tricks it will go exactly as briefed (from the examiners point of view obviously)
One of the examiners once said to me " I dont fail anyone I just sit there and watch "
The only pressure on a cpl or indeed an IR will come from yourself , not the examiner
Hopefully
Good luck and dont worry about dirty tricks there will be no surprises