Debug test refactor (#9637)
Debug test refactor (#9637)

* debug: refactor test cases
* debug: remove unnecessary syncbuffer resets
* debug: cleaned up test code per suggestions
* debug: clarify note on parallel testing
burdandrei/nomad,dvusboy/nomad,burdandrei/nomad,hashicorp/nomad,burdandrei/nomad,dvusboy/nomad,dvusboy/nomad,burdandrei/nomad,dvusboy/nomad,hashicorp/nomad,dvusboy/nomad,hashicorp/nomad,hashicorp/nomad,burdandrei/nomad,hashicorp/nomad,burdandrei/nomad,hashicorp/nomad,dvusboy/nomad,dvusboy/nomad,burdandrei/nomad