Add github workflow

.github/workflows/push_event_workflow.yml

@@ -0,0 +1,18 @@
+name: Push Event Workflow
+
+on: push 
+
+jobs:
+  unit-testing:
+    runs-on: ubuntu-latest 
+
+    steps:
+    - name : Checkout code
+      uses : actions/checkout@v2
+
+    # - name : Install Packages 
+    #   run : pip install pytest
+
+    - name : Run tests 
+      working-directory: ./installation_and_upgrade
+      run : python -m unittest discover