Update main.yml

Author: mcbarton

.github/workflows/main.yml

@@ -329,10 +329,22 @@ jobs:
                          --contents notebooks/smallpt.ipynb \
                          --contents notebooks/images/marie.png \
                          --contents notebooks/audio/audio.wav &
+          if [[ "${os}" == "macos"* ]]; then
+            brew install coreutils
+          fi 
           python -m pip install nbdime
           python -m pip install selenium
           python scripts/automated-notebook-run-script.py --driver chrome
           nbdiff notebooks/smallpt.ipynb $HOME/smallpt.ipynb
+          rm $HOME/smallpt.ipynb
+          python scripts/automated-notebook-run-script.py --driver firefox
+          nbdiff notebooks/smallpt.ipynb $HOME/smallpt.ipynb
+          rm $HOME/smallpt.ipynb          
+          if [[ "${os}" == "macos"* ]]; then
+            python scripts/automated-notebook-run-script.py --driver safari
+            nbdiff notebooks/smallpt.ipynb $HOME/smallpt.ipynb
+            rm $HOME/smallpt.ipynb  
+          fi
         timeout-minutes: 5
 
       - name: Setup tmate session