The biggest caveat is that JS code (such as functions) will not be interpreted as such, on purpose, for security precautions. If such thing is needed, then a configuration file must be used.
This has multiple benefits:
- Respects the "Do not mock what you do not own" principle, instead we mock `log.raw` when necessary
- Lets us not re-assign `console.log`, which breaks as Mocha uses `console.log` as well
- Save and restore initial `log.raw` in test hooks (before/after), otherwise this would break Mocha/Chai
