gistfile1.txt

# mygem/lib/test_support/cucumber/sniff_activity.rb

module Sniff
  module Activity
    def do_it
      run.some_code.that_fails
    end
  end
end

# rails_app/features/support/env.rb

World Sniff::Activity

# rails_app/features/step_definitions/my_steps.rb

When "I run the Activity" do
  do_it
end


Output:

      undefined method `another_method_deep_in_the_code' for nil:NilClass (NoMethodError)
      /rails_app/features/step_definitions/my_steps.rb:9:in `/^I run the activity$/'
      features/whatever.feature:118:in `When I run the Activity'