appraise "rails-4-2" do
  gem "railties",    "~> 4.2.0"
  gem "actionpack",  "~> 4.2.0"
  gem "activemodel", "~> 4.2.0"
end

appraise "rails-5-0" do
  gem "railties",    "~> 5.0.0"
  gem "actionpack",  "~> 5.0.0"
  gem "activemodel", "~> 5.0.0"
end

appraise "rails-5-1" do
  gem "railties",    ">= 5.1.0", "< 5.2"
  gem "actionpack",  ">= 5.1.0", "< 5.2"
  gem "activemodel", ">= 5.1.0", "< 5.2"
end
