Tags were cleaned up in the meantime.

Added tidyverse. See the wiki page (under packages) for details including some limitations.

I'd appreciate any feedback :)

Thanks for the suggestion. I actually considered adding them when I worked on R support, but decided to wait because I wanted to start with minimum environment.

I've opened an issue to track this. I'll look into it after other higher priority tasks.

Yes, because it's sample tests. It's there to do sanity checks to your code.

You need to attempt actual tests to run against the true tests.