Add tox for testing, support Sphinx 6, and fix Sphinx version compatibility.
Review Request #12743 — Created Nov. 27, 2022 and submitted
To help keep beanbag-docutils maintainable, a
tox.inihas been added
to run the entire test suite against every supported combination of
Python and Sphinx.
Right now, we support Sphinx as far back as 1.8, for some of our older
codebases. So, this tests against each X.0.Z and the latest X.Y.Z of
each version series of Sphinx. We'll be dropping most of this in
Until then, some fixes have been included to make beanbag-docutils run
on some older versions of Sphinx, including the in-progress Sphinx 6
(which, currently, just requires unit test fixes).
All unit tests pass across all supported versions of Python and Sphinx.
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