Having trouble getting the Rspec rake tasks to appear when you run “rake -T” in your Rails engine? The dummy app (which you should have if you specified –full) is not pulling in the Bundler dependencies, and as a result the rspec-rails Railtie subclass is not being created.
The fix, for me at least, is changing spec/dummy/config/application.rb line 11 or so to:
Bundler.require(*Rails.groups)
You should now have tasks such as “rake app:spec” available.
You may also need to update your root Rakefile to run the specs by default, by adding “task :default => ‘app:spec'”
Also see my issue on the railties Github
This was with Rails 3.2.8.