Add failure case test for submitting contributions
Add failure case test for submitting contributions

JaredKerim-Mozilla/leaderboard-server,mozilla-services/location-leaderboard,mozilla-services/location-leaderboard,mozilla-services/location-leaderboard,JaredKerim-Mozilla/leaderboard-server,mozilla-services/location-leaderboard,JaredKerim-Mozilla/leaderboard-server,JaredKerim-Mozilla/leaderboard-server,JaredKerim-Mozilla/leaderboard-server,mozilla-services/location-leaderboard