[WIP] Matrix building for 【ruby 2.2 - 2.7】 ✖️ 【rails 5.0 - 6.0】

[akariiijima]

T/O

memo

• ruby2.2, 2.3 not working in ubuntu-latest -> ubuntu 20.04
  • Bundler install appears broken on Ruby 2.2 ruby/setup-ruby#496
• rails5.1.6〜 Support mysql2 0.5.x.
  • https://github.com/rails/rails/blob/5-1-stable/activerecord/CHANGELOG.md#rails-516-march-29-2018
• rails 6〜 Only Support ruby => 2.5
• loofah version 2.20.2 pin ruby < 2.5
  • Getting errors using Nokogiri < 1.12 flavorjones/loofah#266
  • Pin loofah for <= ruby 2.4 since they removed support in a patch release getsentry/sentry-ruby#2041
• rescue/else/ensure syntax error ruby < 2.5
  • https://bugs.ruby-lang.org/issues/12906
  • dalli < 2.5 is version 2 Dalli 3.0 petergoldstein/dalli#758
  • FIX: spec/active_record/turntable/active_record_ext/query_cache_spec.rb

[akariiijima]

memo: spec gacha?

Failures:

  1) ActiveRecord::Turntable::ClusterHelperMethods.weighted_random_shard_with When checking current target shard from given block users_in_each_shard: [10, 10, 10], probabilities_in_each_shard: [0.333, 0.333, 0.333] should contain exactly (be within 0.05 of 0.333), (be within 0.05 of 0.333), and (be within 0.05 of 0.333)
     Failure/Error: expect(result).to match_array(probabilities_matcher)

       expected collection contained:  [(be within 0.05 of 0.333), (be within 0.05 of 0.333), (be within 0.05 of 0.333)]
       actual collection contained:    [0.302, 0.314, 0.384]
       the missing elements were:      [(be within 0.05 of 0.333)]
       the extra elements were:        [0.384]
     # ./spec/active_record/turntable/cluster_helper_methods_spec.rb:103:in `block (5 levels) in <top (required)>'