Add GitHub Action for Pytest

May add linting or more in later versions.

.github/workflows/python-app.yml

@@ -0,0 +1,34 @@
+# This workflow will install Python dependencies, run tests and lint with a single version of Python
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
+
+name: Python application
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    
+    - name: Setup Python 3.7.7
+      uses: actions/setup-python@v2
+      with:
+        python-version: 3.7.7
+    
+    - name: Setup Pipenv
+      uses: dschep/install-pipenv-action@v1
+      
+    - name: Install dependencies
+      run: |
+        # python -m pip install --upgrade pip
+        pipenv install -r requirements.txt
+        
+    - name: Run tests
+      run: pipenv run pytest