[TESTS] fix broken test, add test for failing traffic fraction
[TESTS] fix broken test, add test for failing traffic fraction

blackskad/sixpack,llonchj/sixpack,blackskad/sixpack,nickveenhof/sixpack,seatgeek/sixpack,smokymountains/sixpack,vpuzzella/sixpack,spjwebster/sixpack,nickveenhof/sixpack,spjwebster/sixpack,vpuzzella/sixpack,blackskad/sixpack,seatgeek/sixpack,llonchj/sixpack,seatgeek/sixpack,blackskad/sixpack,vpuzzella/sixpack,smokymountains/sixpack,vpuzzella/sixpack,llonchj/sixpack,nickveenhof/sixpack,smokymountains/sixpack,spjwebster/sixpack,seatgeek/sixpack,llonchj/sixpack