mocha --watch / watching file change, only runs specifics

Trying to provide the main idea in the title, what i'm looking for would be to have mocha watch for many files changes (meaning, if one of those files change, run the tests), and only have specific files being run

I'm coming from guard/rspec/rails,it is even possible to run specific test if a specific file has changed, which is quite convenient, if not ideal

Tried to do my best, but I could not spot such clues googling around about such setups in mocha. I quite wonder as js frameworks tend to be highly configurable and flexible. It might exists

Thank for any enlightning tips