Best to look within the GitHub project to write the correct Gemfile.
If you see the error that visit is undefined, in the Gemfile add
group :test do
gem 'capybara', '1.1.2'
bundle install --without production
Pretty pointless to write test cases for 3 parts in 3.3.1-3.3.2 I thought it was going to generate the title tag automatically at least.
Ha that’s what 3.3.3 is about sorta.
Found this chapter semi helpful. Not really worth doing the samples. Not sure why but can’t get it to run on heroku either but works locally.