appraise 'rails-3.2' do
  gem 'rails', '3.2.21'
  gem 'minitest', '~> 4.7'
end

appraise 'rails-4.0' do
  gem 'rails', '4.0.13'
end

appraise 'rails-4.1' do
  gem 'rails', '4.1.9'
end

appraise 'rails-4.2' do
  gem 'rails', '4.2.0'
end