Current Situation:
- MediaWiki tends to spit out warnings into the DOM, this happens for example in case of API deprecation (recent example: T350934).
Goal:
- Automatically check during test suite run relevant pages for deprecation and/or other warnings.
- Define on which pages to check, maybe all pages we touch anyway?
Acceptance Criteria:
- A PHP warning/error message print somewhere in the DOM on relavant (to be defined) pages results in a test suite failure.
- A MediaWiki warning/error message print somewhere in the DOM on relavant (to be defined) pages results in a test suite failure.
[optional] Notes:
- none