[masklinn]

> Why is RubySpec the special sauce that is so special that the devs not using it is horrible?

Assuming TFA isn't actively lying[0]: because it fixes the issues outlined which allow (amongst other things) cross-implementation and cross-version uses, because it tests behaviours not tested by the MRI suite anyway and because it's there as an extensive test suite for the language.

Oh, and because according to TFA it found regressions in just about every release it's existed for. Regressions which could thus have been caught before the release was cut.

[0] and I don't see any reason to assume otherwise, quite the opposite.

[headius]

I wouldn't say TFA is lying but it is presenting only part of the truth. MRI does have an actively developed test suite, which they run in CI and which we use to test compatibility in JRuby. MRI has contributed to RubySpec in the past and many contributors I know stopped (like I did) for nontechnical reasons. They are not ignoring it, but it is a hard project to collaborate on given the attitudes of the project lead that should be evident in this post.