establish GitHub actions testing with TOX

.coveragerc

@@ -0,0 +1,9 @@
+[run]
+omit =
+   */virtualenvs/*,
+   */migrations/*,
+   */site-packages/*
+include = import_export_celery/*
+plugins =
+    django_coverage_plugin
+branch = True

.github/workflows/linters.yml

@@ -1,4 +1,4 @@
-name: Flake8
+name: CI
 
 on: [push, pull_request]
 
@@ -7,6 +7,89 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    services:
+      postgres:
+        image: postgres:13
+        ports:
+          - 5432:5432
+        env:
+          POSTGRES_DB: pguser
+          POSTGRES_USER: pguser
+          POSTGRES_PASSWORD: foobar
+        options: >-
+          --health-cmd "pg_isready -U pguser"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+
+      redis:
+        image: redis:latest
+        ports:
+          - 6379:6379
+        options: >-
+          --health-cmd "redis-cli ping"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.6", "3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
+        django-version: ["3.2", "4.0", "4.1", "4.2", "5.0", "5.1"]
+        exclude:
+          - python-version: "3.6"
+            django-version: "4.0"
+          - python-version: "3.6"
+            django-version: "4.1"
+          - python-version: "3.6"
+            django-version: "4.2"
+          - python-version: "3.6"
+            django-version: "5.0"
+          - python-version: "3.6"
+            django-version: "5.1"
+          - python-version: "3.7"
+            django-version: "5.0"
+          - python-version: "3.7"
+            django-version: "5.1"
+          - python-version: "3.11"
+            django-version: "3.2"
+          - python-version: "3.12"
+            django-version: "3.2"
+          - python-version: "3.12"
+            django-version: "4.0"
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install tox tox-gh-actions
+
+      - name: Run Tox
+        env:
+          DJANGO_VERSION: ${{ matrix.django-version }}
+        run: |
+          PYTHON_VERSION=`echo ${{ matrix.python-version }} | sed 's/\.//'`
+          DJANGO_VERSION=`echo $DJANGO_VERSION | sed 's/\.//'`
+          tox -e py${PYTHON_VERSION}-django${DJANGO_VERSION}
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v2
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: coverage.xml
+          fail_ci_if_error: true
+
   flake8:
     name: flake8
     runs-on: ubuntu-latest

example/project/settings.py

@@ -67,6 +67,7 @@
                 "django.contrib.auth.context_processors.auth",
                 "django.contrib.messages.context_processors.messages",
             ],
+            "debug": DEBUG,
         },
     },
 ]
@@ -78,16 +79,24 @@
 # Database
 # https://docs.djangoproject.com/en/1.10/ref/settings/#databases
 
-DATABASES = {
-    "default": {
-        "ENGINE": "django.db.backends.postgresql_psycopg2",
-        "NAME": os.environ.get("DATABASE_NAME", "pguser"),
-        "USER": os.environ.get("DATABASE_USER", "pguser"),
-        "PASSWORD": os.environ.get("DATABASE_PASSWORD", "foobar"),
-        "HOST": os.environ.get("DATABASE_HOST", "postgres"),
-        "PORT": os.environ.get("DATABASE_PORT", ""),
-    },
-}
+if os.environ.get("DATABASE_TYPE") == "sqlite":
+    DATABASES = {
+        "default": {
+            "ENGINE": "django.db.backends.sqlite3",
+            "NAME": os.environ.get("DATABASE_NAME", os.path.join(BASE_DIR, "db.sqlite3")),
+        }
+    }
+else:
+    DATABASES = {
+        "default": {
+            "ENGINE": "django.db.backends.postgresql_psycopg2",
+            "NAME": os.environ.get("DATABASE_NAME", "pguser"),
+            "USER": os.environ.get("DATABASE_USER", "pguser"),
+            "PASSWORD": os.environ.get("DATABASE_PASSWORD", "foobar"),
+            "HOST": os.environ.get("DATABASE_HOST", "postgres"),
+            "PORT": os.environ.get("DATABASE_PORT", ""),
+        },
+    }
 
 STORAGES = {
     "IMPORT_EXPORT_CELERY_STORAGE": {

requirements_test.txt

@@ -0,0 +1,7 @@
+Django
+django-import-export
+django-author
+html2text
+celery
+psycopg2-binary
+django-admin-smoke-tests

tox.ini

@@ -0,0 +1,38 @@
+[tox]
+envlist =
+    py{36,37,38,39,310}-django32
+    py{38,39,310}-django40
+    py{38,39,310,311}-django41
+    py{38,39,310,311,312}-django42
+    py{310,311,312}-django50
+    py{310,311,312}-django51
+
+[testenv]
+deps =
+    -rrequirements_test.txt
+    coverage
+    django-coverage-plugin
+    django32: django>=3.2,<3.3
+    django40: django>=4.0,<4.1
+    django41: django>=4.1,<4.2
+    django42: django>=4.2,<4.3
+    django50: django>=5.0,<5.1
+    django51: git+https://github.com/django/django@main  # TODO: update when Django 5.1 is released
+
+setenv =
+    DATABASE_TYPE=sqlite
+    REDIS_URL=redis://127.0.0.1:6379/0
+
+allowlist_externals = coverage
+
+test-executable =
+    python --version
+    python -c "import django; print(django.get_version())"
+    pip install -r requirements_test.txt
+    {envbindir}/python -Wall {envbindir}/coverage run --append
+
+commands =
+    python example/manage.py migrate
+    {[testenv]test-executable} example/manage.py test winners
+    coverage report
+    coverage xml -o coverage.xml