test-coverage

We have a problem: if files aren't loaded/required we don't have branch data. If they are added through track_files we give it 0/0 branches which we show as 100% coverage (all possible branches are covered).

That math is "wrong" though here because there are branches but we don't know what they are. We should probably count total branches here as "unkown" and establish that in our "math unive

undercover should create warnings on entire files that weren't required by specs and hence don't show up in the lcov output.

This can be done by changing logic starting from Undercover::Report#load_and_parse_file

Description

Provide a better onboarding experience by leveraging a getting started section in the readme along with an information popup.

Work

• add informational popup on first install of the extension / (on update as well?)
• add new section to the readme for quick-start with gifs around how to use the extension
• link this section in the "onboarding" popup message