I had a quad muscle tear Now after 3 months I have started running about 6 km a day does it mean I can play soccor again is there a way to test my leg?

Yes, there is which. your Doctor can do, by clinically examining you and checking the strength and comparing It to the other side. If you are already running, I am sure you are ready to paly soccer, BUT have it checked by your Doctor. Good Luck.