99% of the time they won't test for steroids because of the cost involved. Barring Police officers, the only time I've heard of it done was if it was specifically ordered to be included on an individual's test by a manager or similar. Also, if you're on ephedrine or similar, just tell them that too before the test, so they don't mistake it for something else. As long as you note it before hand, they won't give you a problem.