If you try to lift the small tear will become a bigger, or even complete tear. Don't do it. Concentrate on legs and do lots of cardio to stay in shape. After surgery it will be at least 6 months before you can start lifting very light. I won't lie, it's a tough road back.... don't make it worse.
Trust me.... been there. I had tendonitis in my shoulder and I kept trying to work out. It turned into a tear, and I tried to work around it. It completely snapped one day and I couldn't raise my arm more then about parallel to the floor. I had surgery, and while I am back lifting it will never be 100%.