if RUBY_VERSION < "2.2.0"
  appraise 'rails3.2' do
    gem 'rails', '~> 3.2.21'
  end
end

appraise 'rails4.0' do
  gem 'rails', '~> 4.0.13'
  gem 'test-unit'
end

appraise 'rails4.1' do
  gem 'rails', '~> 4.1.9'
end

appraise 'rails4.2' do
  gem 'rails', '~> 4.2.0'
end