Combine testdata's server and cli into one set of methods that always create the application parser instance and runs it, that way the server can pass in help and get a help body just like the cli and there is one source of truth to do the path inference and get information.
Combine testdata's server and cli into one set of methods that always create the application parser instance and runs it, that way the server can pass in help and get a help body just like the cli and there is one source of truth to do the path inference and get information.