appraise "rails50" do
  gem "activerecord", "~> 5.0.0"
  gem 'activesupport', '~> 5.0.0'
  gem 'mysql2', '>= 0.3.18', '< 0.6.0'
  gem 'pg', '>= 0.18', '< 2.0'
end

appraise "rails51" do
  gem 'activerecord', '~> 5.1.0'
  gem 'activesupport', '~> 5.1.0'
  gem 'mysql2', '>= 0.3.18', '< 0.6.0'
  gem 'pg', '>= 0.18', '< 2.0'
end

appraise "rails52" do
  gem 'activerecord', '~> 5.2.0'
  gem 'activesupport', '~> 5.2.0'
  gem 'mysql2', '>= 0.4.4', '< 0.6.0'
  gem 'pg', '>= 0.18', '< 2.0'
end