client/driver: add test for docker auth helper
client/driver: add test for docker auth helper

burdandrei/nomad,burdandrei/nomad,nak3/nomad,dvusboy/nomad,hashicorp/nomad,nak3/nomad,hashicorp/nomad,nak3/nomad,dvusboy/nomad,dvusboy/nomad,burdandrei/nomad,nak3/nomad,hashicorp/nomad,nak3/nomad,burdandrei/nomad,burdandrei/nomad,hashicorp/nomad,dvusboy/nomad,hashicorp/nomad,hashicorp/nomad,nak3/nomad,dvusboy/nomad,burdandrei/nomad,burdandrei/nomad,nak3/nomad,dvusboy/nomad,dvusboy/nomad