anchor.diff:  bundle exec rake rubocop
   ```
   
  -## Running the unit tests
  +### Running the unit tests
   
   The unit test suite covers most of the code, as mentioned above please
   add tests if you're adding new functionality. If you've not used
  
positive.code: `DOCKER_HOST` environment variable. it will copy the content of the module into
  the docker image. So it will not work if a Gemfile.lock exists.
  
  ## Integration tests
  
  The unit tests just check the code runs, not that it does exactly what
  we want on a real machine. For that we're using
  
negative.code: --jobs "$(sysctl -n hw.ncpu)"
  ```
  
  ## The test matrix
  
  ### Syntax and style
  
  The test suite will run [Puppet Lint](http://puppet-lint.com/) and
  [Puppet Syntax](https://github.com/gds-operations/puppet-syntax) to
  