What drug testing is used for reality shows?

I will be applying to be on an australian reality tv show and i smoke a lot of pot. On the application it says there will be drug testing but i am not too sure what type of drug testing? I want to be prepared, ive quit for now but testing would probably be sometime in the next 2 months so i will need to come up with a plan. Does anybody have any idea what type of testing may be used?

they will do a drug test!

I know that they will do a drug test but what type? Hair, blood or urine?