Is there anyway to know whether or not the court will drug test me after my marijuana charge is expunged?

If being familiar with the court helps, it's in New Rochelle, NY. I'm 16, and was arrested for unlawful possession of marijuana (it was a misdemeanor i think). The judge decided to expunge the charge from my record or adjourn the case permanently, I'm not sure. But, this isn't happening until this Friday (the 6th of February). I went to a recommended counselor for a couple of weeks in between proceedings, who wrote a letter to the judge saying that, after proper evaluation, I didn't have a drug problem. I just want to know the likelihood of being drug tested this upcoming week.