Pass all unit tests on Raspberry Pi

tests/unit/requirements-rpi.txt

@@ -0,0 +1,4 @@
+coverage==5.3
+nose==1.3.7
+nose-htmloutput==0.6.0
+parameterized==0.7.0

tests/unit/rpi.Dockerfile

@@ -1,34 +1,53 @@
-FROM python:3.7.4-stretch
+FROM ubuntu:bionic
+
+RUN apt-get update && apt-get install -y wget xz-utils curl
 
 #nodejs
-RUN wget --quiet https://nodejs.org/dist/v11.14.0/node-v11.14.0-linux-x64.tar.xz -O ~/node.tar.xz && \
+RUN wget --quiet https://nodejs.org/dist/v11.14.0/node-v11.14.0-linux-arm64.tar.xz -O ~/node.tar.xz && \
     tar -xvf ~/node.tar.xz -C /opt/ && \
     rm ~/node.tar.xz
-ENV PATH /opt/node-v11.14.0-linux-x64/bin:$PATH
+ENV PATH /opt/node-v11.14.0-linux-arm64/bin:$PATH
 
 RUN apt-get update --fix-missing \
     && apt-get install -y --no-install-recommends \
-    graphviz dos2unix && \
+    graphviz dos2unix python3-numpy libatlas-base-dev gfortran libgfortran5 && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/*
 
+# Ensure specific python version
+# See: https://stackoverflow.com/a/58562728/1730417
+# and: https://askubuntu.com/a/1176271/260220
+RUN apt-get update && apt-get install -y software-properties-common
+RUN add-apt-repository ppa:deadsnakes/ppa
+RUN apt-get update
+RUN apt-get install -y python3.7 python3.7-dev python3.7-distutils
+RUN update-alternatives --install /usr/bin/python python /usr/bin/python3.7 1
+RUN update-alternatives --set python /usr/bin/python3.7
+RUN curl -s https://bootstrap.pypa.io/get-pip.py -o get-pip.py && \
+    python get-pip.py --force-reinstall && \
+        rm get-pip.py
+
 RUN npm install -g mocha
 
 RUN pip install --upgrade pip
 
 ## tests
-COPY /tests/unit/requirements.txt /root/test_requirements.txt
+COPY /tests/unit/requirements-rpi.txt /root/test_requirements.txt
 RUN pip install --no-cache-dir -r /root/test_requirements.txt
 
 ## machine and lab container
-COPY /docker/lab/files/requirements.txt /root/lab_requirements.txt
-RUN pip install --no-cache-dir -r /root/lab_requirements.txt
+RUN mkdir /root/wheel
+COPY /docker/pennai-arm64-deps/lab/wheel/*.whl /root/wheel/ 
+COPY /docker/pennai-arm64-deps/machine/wheel/*.whl /root/wheel/ 
+COPY /docker/lab/files/requirements-raspberrypi.txt /root/lab_requirements.txt
+RUN pip3 install --no-index --find-links=/root/wheel -r /root/lab_requirements.txt
 
-COPY /docker/machine/files/requirements.txt /root/mach_requirements.txt
-RUN pip install --no-cache-dir -r /root/mach_requirements.txt
+COPY /docker/machine/files/requirements-raspberrypi.txt /root/mach_requirements.txt
+RUN pip install --no-index --find-links=/root/wheel -r /root/mach_requirements.txt
 
 ### Bill's surprise fork
-RUN pip install --no-cache-dir git+https://github.com/lacava/[email protected]
+#RUN pip install --verbose --verbose --verbose --no-cache-dir git+https://github.com/lacava/[email protected]
+RUN pip install --no-index --find-links=/root/wheel scikit_surprise
 
 
 # install lab/node_modules to an anon volume