spree-contrib/spree_print_invoice

appraise 'spree-4-0' do
  gem 'spree', '~> 4.0'
  gem 'spree_auth_devise', '~> 4.0'
end

appraise 'spree-4-1' do
  gem 'spree', '~> 4.1'
  gem 'spree_auth_devise', '~> 4.1'
  gem 'rails-controller-testing'
end

appraise 'spree-master' do
  gem 'spree', github: 'spree/spree', branch: 'master'
  gem 'spree_auth_devise', github: 'spree/spree_auth_devise', branch: 'master'
  gem 'rails-controller-testing'
end