appraise "rails-3.1.3" do
  gem "rails", "3.1.3"
  gem "test-unit"
end

appraise "rails-3.2.12" do
  gem "rails", "3.2.12"
  gem "test-unit"
end

appraise "rails-4.0.0" do
  gem "rails", "4.0.0"
end

appraise "rails-4.1.0" do
  gem "rails", "4.1.0"
end

appraise "rails-4.2.0" do
  gem "rails", "4.2.0"
end

appraise "rails-5.0.0.beta2" do
  gem "rails", "5.0.0.beta2"
end