Improved intro / quickstart documentation for testing
The testing documentation starts off with writing tests. It doesn't cover running tests until half way down this second tier page: https://docs.civicrm.org/dev/en/latest/testing/phpunit/.
Arguably, people will want to make sure they have been able to run the test suite before thinking about writing a test, and I think we should try and find a way make running tests much more visible.
This is a similar issue to https://github.com/civicrm/civicrm-dev-docs/issues/446 (which I am yet to get around to implementing
One solution would be to have 'Running tests' and 'Writing tests' as two main headings on the testing page (in that order). Each of these sections would give a brief intro and point towards the details contained in other testing pages.
Thoughts?