Add action to run tests

.github/workflows/unit_test.yml

@@ -0,0 +1,32 @@
+name: Run Unit Tests
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ['3.10']
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v4
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pipenv
+        pipenv install --deploy --dev
+    - name: Test with unittest
+      run: |
+        python _app/manage.py test homepage.tests
+    - name: Run mypy
+      run: |
+        python -m mypy _app/homepage