Updates tests to expect errors instead of exceptions
Updates tests to expect errors instead of exceptions

Previous versions were raising exceptions on errors, but
now it appears that http exceptions are able to be tested
normally in the test client.

expobrain/flask-restful,sergeyromanov/flask-restful,elatomo/flask-restful,ihiji/flask-restful,mitchfriedman/flask-restful,mackjoner/flask-restful,ankravch/flask-restful,red3/flask-restful,marrybird/flask-restful,santtu/flask-restful,codephillip/flask-restful,justanr/flask-restful,ueg1990/flask-restful,flask-restful/flask-restful,frol/flask-restful,liangmingjie/flask-restful,Khan/flask-restful,samarthmshah/flask-restful,whitekid/flask-restful,gonboy/flask-restful,FashtimeDotCom/flask-restful