MERN.IO watch:test: Uncaught Exception Error: listen EADDRINUSE :::8080

Hello I'm getting an error "Uncaught Exception Error: listen EADDRINUSE :::8080" after I added multiple test files to the backend api test how do i fix it?

*EDIT

I found the cause but I can't find a solution, this happens if i have more than one test file under the path /server/models/__tests__/