It is time for Ohio State basketball’s first real test. After three “warm-up” games against mid-majors, two of which were probably a little closer than Buckeye fans would have hoped, Ohio State will take on Xavier tonight at the Cintas Center in Cincinnati. Tipoff is at 6:30pm. These two teams have met one time previously. Back in the 2007 NCAA Tournament, No. 9-seed Xavier led by three points with just…