Never forget to make requests in controller specs

controller-example-group.rb

# spec/support/rspec-rails/controller-example-group.rb
module RSpec::Rails
  module ControllerExampleGroup

    def process *args
      @requested = true
      super
    end

    def self.included(base)
      base.class_eval do
        after do
          unless @requested
            puts 'WARNING: No request method invoked. Have you forgotten to make a request?'
          end
        end
      end
    end

  end
end