appraise "rails-32" do
  gem "rails", "~> 3.2.0"
end

appraise "rails-42" do
  gem "rails", "~> 4.2.0"
  gem "rspec", "~> 3.4.0"
end

appraise "rails-42-rspec-33" do
  gem "rails", "~> 4.2.0"
  gem "rspec", "~> 3.3.0"
end

appraise "rails-5" do
  gem "rails", "~> 5.0.0.beta2"
  gem "rspec", "~> 3.5.0.beta1"
end