Build Node JS app that takes a file upload and runs tests on it

This is a general architecture/tech stack question.

I would like to build a Node JS app that can test user-uploaded code. Basically, I would write test cases and then I would make a front end where users can write their own JS code and "submit" it to the Node server, which would run my tests against it and return the result to the user.

Essentially the same as HackerRank