anchor.diff:  RUN apt-get -y install xvfb x11vnc
   
   # Chromedriver
  +RUN apt-get install -y unzip
   RUN curl -sL https://chromedriver.storage.googleapis.com/`curl -sL https://chromedriver.storage.googleapis.com/LATEST_RELEASE`/chromedriver_linux64.zip > /tmp/chromedriver_linux64.zip
   RUN cd /usr/local/bin; unzip /tmp/chromedriver_linux64.zip
   RUN chmod 755 /usr/local/bin/chromedriver
  
positive.code: #   3. ./develop_noc.sh
  #   4. test.sh shell
  
  FROM epflsti/blueboxnoc
  MAINTAINER Dominique Quatravaux <dominique.quatravaux@epfl.ch>
  
  ########################################################################
  # General-purpose stuff
  RUN apt-get -y install \
    # Handy for debugging failing tests:
    strace \
    # Needed below
    unzip
  
  ########################################################################
  # Dependencies of the Perl tests
  RUN cpanm Test::Group
  
  ########################################################################
  # Dependencies of the node.js tests
  
negative.code: RUN curl -sL https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -
  RUN echo "deb http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google-chrome.list
  RUN apt-get -y update
  RUN apt-get -y --force-yes install google-chrome-stable
  # Disable the SUID sandbox so that Chrome can launch without being in a privileged container.
  RUN echo "#!/bin/bash\nexec /opt/google/chrome/google-chrome --disable-setuid-sandbox \"\$@\"" > /usr/local/bin/google-chrome
  RUN chmod 755 /usr/local/bin/google-chrome
  