[docs] [issue18871] Be more stringent about the test suite

Nick Coghlan added the comment: Looks good to me. I think it's OK to leave the optional resources in the set of things covered by the buildbots rather than expecting them to always be run in pre-commit testing. ---------- _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue18871> _______________________________________