Add expected_code options in simple_http_worker
Add expected_code options in simple_http_worker

timofey-barmin/mzbench,machinezone/mzbench,timofey-barmin/mzbench,machinezone/mzbench,timofey-barmin/mzbench,timofey-barmin/mzbench,machinezone/mzbench,machinezone/mzbench,machinezone/mzbench,timofey-barmin/mzbench