Where a plaintiff failed a drug test and was subsequently not hired, the plaintiff needed to provide evidence casting doubt on the positive drug test result to support a discrimination complaint.The 7th U.S. Circuit Court of Appeals affirmed a decision by U.S. District Judge Philip G. Reinhard.Hirschbach Motor Lines is a commercial trucking company. Hirschbach offered Robin Turner a job as a driver contingent on his completion of orientation and a drug test, among other conditions.Turner is African-American. Throughout …