Added github actions

Author: geophphrie

.github/workflows/tests.yml

@@ -0,0 +1,84 @@
+# copied from django-cte
+name: entity_emailer tests
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master,develop]
+
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python: ['3.7', '3.8', '3.9']
+        # Time to switch to pytest or nose2??
+        # nosetests is broken on 3.10
+        # AttributeError: module 'collections' has no attribute 'Callable'
+        # https://github.com/nose-devs/nose/issues/1099
+        django:
+          - 'Django~=3.2.0'
+          - 'Django~=4.0.0'
+          - 'Django~=4.1.0'
+          - 'Django~=4.2.0'
+        experimental: [false]
+#        include:
+#        - python: '3.9'
+#          django: 'https://github.com/django/django/archive/refs/heads/main.zip#egg=Django'
+#          experimental: true
+#          # NOTE this job will appear to pass even when it fails because of
+#          # `continue-on-error: true`. Github Actions apparently does not
+#          # have this feature, similar to Travis' allow-failure, yet.
+#          # https://github.com/actions/toolkit/issues/399
+        exclude:
+        - python: '3.7'
+          django: 'Django~=4.0.0'
+        - python: '3.7'
+          django: 'Django~=4.1.0'
+        - python: '3.7'
+          django: 'Django~=4.2.0'
+    services:
+      postgres:
+        image: postgres:latest
+        env:
+          POSTGRES_DB: postgres
+          POSTGRES_PASSWORD: postgres
+          POSTGRES_USER: postgres
+        ports:
+          - 5432:5432
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+    steps:
+    - uses: actions/checkout@v3
+    - uses: actions/setup-python@v3
+      with:
+        python-version: ${{ matrix.python }}
+    - name: Setup
+      run: |
+        python --version
+        pip install --upgrade pip wheel
+        pip install -r requirements/requirements.txt
+        pip install -r requirements/requirements-testing.txt
+        pip install "${{ matrix.django }}"
+        pip freeze
+    - name: Run tests
+      env:
+        DB_SETTINGS: >-
+          {
+            "ENGINE":"django.db.backends.postgresql_psycopg2",
+            "NAME":"entity_emailer",
+            "USER":"postgres",
+            "PASSWORD":"postgres",
+            "HOST":"localhost",
+            "PORT":"5432"
+          }
+      run: |
+        coverage run manage.py test entity_emailer
+        coverage report --fail-under=99
+      continue-on-error: ${{ matrix.experimental }}
+    - name: Check style
+      run: flake8 entity_emailer