I'm unsure there's more to test than:
- assigning an operational rule cointaining a package to one of its childs (you can create a package that do not execute anything, simply a copy a file)
- checking it can deploy an agent if you'll also use it as a rollout server
- filtering the logs for "ERR " and " w "
- checking it gets selected as a backup server if it is set to be one for some devices
Have a good day