Support passing --debug to pa11y

[kussmaul]

I have a set of Pa11y tests (run from pa11y-ci), each with a url and a set of actions to set fields, click elements, and wait for paths to change or other conditions. When I run/debug these tests, I often get messages like this, and then have to figure out which action caused the problem.

http://localhost:4200/some-path - Failed to run
Errors in http://localhost:4200/some-path:
 • Error: Pa11y timed out (30000ms)

More informative messages would be nice, but for now I use screen capture every few actions to trace what happens. I think it would be convenient and not difficult to add an action that writes text to the console. Something like console log <message> or write text <message>. This could even be extended to console error <message> or write url or write field <selector>.

Does this seem worth doing? Thoughts on syntax?

[joeyciechanowicz]

The debug flag (-d) should print out the actions as they're ran.

[kussmaul]

Thank you, @joeyciechanowicz. The debug flag works for pa11y but not pa11y-ci.
Should I propose adding it to pa11y-ci? (similar to #73)
A more general write action could have other uses, especially if it could extract info from a page.

[joeyciechanowicz]

I think if we were to support passing the --debug flag to pa11y from pa11y-ci then we could avoid adding a new action?

[kussmaul]

Yes, pa11y-ci --debug would handle my use case.

[josebolos]

Moving issue to the pa11y-ci repo.