anchor.diff:  RUN cd halocelery && \
       git archive --verbose --format=tar.gz -o /app/halocelery.tar.gz $HALOCELERY_BRANCH
   
  -
   #####################################
  +# Unit and integration tests run in a separate step.
   
   FROM docker.io/halotools/python-sdk:ubuntu-16.04_sdk-1.0.6
   MAINTAINER toolbox@cloudpassage.com
  
positive.code: 
  USER ${APP_USER}
  
  RUN py.test /app/test
  
  WORKDIR /app
  
  
  CMD ["unbuffer", "python", "/app/runner.py"]
  
negative.code: RUN apt-get install -y expect
  
  RUN pip install \
      pytest==3.1.1 \
      flake8==2.6.2 \
      pyflakes==1.2.3 \
      pycodestyle==2.0.0 \
      mccabe==0.5.3 \
      pytest-flake8==0.1 \
      pytest-cov==2.5.1 \
      python-dotenv==0.8.2 \
      codeclimate-test-reporter==0.2.0
  #    pytest==2.8.0 \
  #    pytest-flake8==0.1 \
  #    pytest-cover==3.0.0
  
  # Drop in the app code
  COPY app/ /app/
  