My question involves criminal law for the state of: Arkansas

I was busted with a small amount of marijuana on May 9th. I have court on July 8th and have been smoking occasionally since getting busted. I now have two weeks before my court date and I'm not going to smoke again.
Since I'm a first offender, I will get 6 months probation, 60 hours community service, and a $700 fine with a clean record. They didn't say anything about drug tests even though I'm sure I'll get tested.
My question is, if I've been smoking some before I actually get sentenced to probation and I get tested soon after my court date, will that violate my probation? And since it'll be around two months since I got busted, won't they know I've still be smoking?
Long story short is that I don't want to screw up my probation even though I'm scared I already have. And advice will be greatly appreciated.