This example is called "stock". Use your own name instead.
- Setup new project:
rails plugin new stock --mountable -T --dummy-path=spec/dummy
- Edit gemspec
- Edit engine.rb
- Install RSpec:
bundle install
rails generate rspec:install
- Make edits to spec/rails_helper.rb according to: http://blog.honeybadger.io/rails4-engine-controller-specs/