anchor.diff:  # Install Coffeescript
   RUN npm -g install coffee-script
   
  -# Install Node testing frameworks
  -RUN npm -g install chai
  -RUN npm -g install mocha
  -
  -# Install additional node frameworks
  -RUN npm install immutable
  +# Install Node testing frameworks & additional frameworks
  +RUN npm -g install chai mocha immutable
   
   # Install Lua
   RUN apt-get install -y lua5.2
  
positive.code: RUN add-apt-repository ppa:ubuntu-toolchain-r/ppa
  RUN apt-get -y install clang-3.4 lldb-3.4
  
  # ADD codewarrior user
  RUN useradd -s /usr/sbin/nologin codewarrior
  
  # ADD cli-runner and install node deps
  ADD . /codewars
  
  # Build the jvm-runner
  WORKDIR /codewars/jvm-runner
  RUN LEIN_ROOT=true lein do clean, test, uberjar
  
  WORKDIR /codewars
  RUN npm install
  #USER codewarrior
  
  # Run the test suite to make sure this thing works
  RUN mocha -t 5000 test/*
  
  #timeout is a fallback in case an error with node
  
negative.code:     mkdir /data/db
  
  # Install mongo packages for languages
  RUN npm -g install mongoose mongodb
  RUN pip install pymongo
  RUN gem install mongo --no-ri --no-rdoc
  RUN gem install mongoid --no-ri --no-rdoc
  