Appraisals
appraise 'spree-3-5' do
gem 'spree', '~> 3.5.0'
gem 'rails-controller-testing'
end
appraise 'spree-3-7' do
gem 'spree', '~> 3.7.0'
gem 'rails-controller-testing'
end
appraise 'spree-4-0' do
gem 'spree', '~> 4.0.0.rc2'
gem 'rails-controller-testing'
end
appraise 'spree-master' do
gem 'spree', github: 'spree/spree', branch: 'master'
gem 'rails-controller-testing'
end