When doing quteproc.open_path, by default the test didn't wait until the page
was loaded. This caused unintentional race conditions which e.g. caused
dirbrowser tests to fail on OS X:
https://travis-ci.org/The-Compiler/qutebrowser/jobs/133730001
Now instead we wait by default, unless wait=False is passed to open_path() or
open_url().
This is based on HTML files with a global YAML comment, currently with "target"
as the only allowed key.
The tests then do this:
- Open a HTML file in data/hints/html
- Start hinting
- Make sure only one hint is visible
- Follow it, and make sure the page mentioned in "target:" is reached
Some ideas for the future:
- A "scroll" key, to scroll before hinting
- A "zoom" key, to zoom
- Multiple hints via a list
- Checking position of hints?
- A mode to manually check the pages (to check hint positions)
