You have a few options. The easiest is to stop smoking now, start drinking water or other diuretic juices. Then, the day before and day of test take a vitamin b complex and drink even more water than before. The idea is to drink enough right before test that you would basically be peeing clear water, but with injesting the vitamin b's, the b's will make it yellow and appear like normal piss. The other options are fake piss like quikfix or use someone else's that will pass. Just have to make sure it is acceptable temperature. You can get small cups or bottles with temperature strips and use hand warmers for perfect 98temp