mocha-eslint | Run ESLint in mocha tests | Code Analyzer library

I would like to do the same with Mocha that I can with Karma+Webpack: Eslint the code before running the tests, and do this in watch mode (watching the files for changes), so the eslint+tests would rerun on every save.

Watching with Karma works like this: Karma has the autoWatch option, that watches files for changes. Eslint comes into picture because the client code that is tested with Karma is first processed with webpack which runs eslint on it (with eslint-loader).

Mocha has --watch option, so I can do mocha test --watch to rerun test on file changes.

Eslint has eslint-watch, so I can do esw test --watch to rerun eslint on file changes.

There is mocha-eslint (needs configuration) and eslint-mocha (no configuration needed), both include eslint in testing, but without having the watch option they are as good as running eslint test && mocha test.

Did something miss my attention? Is there already an existing solution out there? Or is there a way around this?

Thanks in advance!