Others don't tend to share unit tests with end users. But I'm quite sure many proprietary OS vendors run regression tests on a variety of variations on their platform. So while not perfect, on this particular item I think they do better than Debian does.
> So while not perfect, on this particular item I think they do better than Debian does.
Could well be, but at this point, we're moving pretty far away from Zed's spittle-flecked exhortation to pursue "in-person confrontations meant to embarrass package maintainers, SEO tricks to get people off Debian, promotion of any alternative to Debian, anything to make them pay" and merely talking about what could be made better (and there's always something).
You don't think that it is embarrassing that package maintainers are given a set of unit tests that enable them to tell that things are correctly packaged, and they throw it away?