Add github actions with a tox config

.github/workflows/test.yaml

@@ -0,0 +1,35 @@
+name: Tests
+
+on: [push]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: '3.x'
+      - name: Install Tox
+        run: pip install tox
+      - name: Run Linting
+        run: tox -e lint
+
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python: [3.6, 3.7, 3.8, 3.9]
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python }}
+      - name: Install Tox
+        run: pip install tox
+      - name: Run Tests
+        # Run tox using the version of Python in `PATH`
+        run: tox -e py

.gitignore

@@ -4,4 +4,5 @@ testapp/db.sqlite3
 testapp/media/images
 __pycache__
 Pipfile
-.python-version
+.python-version
+.tox

setup.py

@@ -8,6 +8,18 @@
     'Wagtail>=2.0',
 ]
 
+TESTING_REQUIRES = [
+    "beautifulsoup4==4.8.2",
+    "Django>=3.1,<3.2",
+    "pytest==4.3.0",
+    "pytest-django==3.4.7",
+    "pytest-pythonpath==0.7.3",
+]
+
+LINTING_REQUIRES = [
+    "flake8==3.7.5",
+]
+
 
 class CompileCSSCommand(build):
     """Combine CSS from the frontend library with our wagtail-specific fixes"""
@@ -41,4 +53,5 @@ def run(self):
     install_requires=INSTALL_REQUIRES,
     packages=find_packages(),
     include_package_data=True,
+    extras_require={"testing": TESTING_REQUIRES, "linting": LINTING_REQUIRES},
 )

tox.ini

@@ -1,8 +1,30 @@
+[tox]
+
+envlist = py{36,37,38,39}-wagtail{212,213}, lint
+
 [flake8]
 
-# E501: Line too long
+# Ignore line length rules. Black should take care of this
 ignore=E501
 
+exclude=.git,__pycache__,dist,.tox,venv,*/migrations/*
+
 [pytest]
 DJANGO_SETTINGS_MODULE = testapp.settings.dev
 python_paths = testapp
+
+[testenv:lint]
+extras = linting
+commands = flake8 .
+
+[testenv]
+
+install_command = pip install {opts} {packages}
+extras = testing
+deps =
+    wagtail212: Wagtail>=2.12,<2.13
+    wagtail213: Wagtail>=2.13,<2.14
+
+commands =
+    python testapp/manage.py makemigrations --dry-run --check
+    pytest .