Updates for compatibility with Django 4.0+ #13

	name: unit tests

	on:
	push: # run on every push or PR to any branch
	pull_request:
	schedule: # run automatically on main branch each Tuesday at 11am
	- cron: "0 16 * * 2"

	jobs:
	python-unit:
	name: Python unit tests
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python: ["3.9", "3.10", "3.11", "3.12", "3.13"]
	django: ["4.0", "4.1", "4.2", "5.0", "5.1"]
	exclude:
	# django 5.0 and 5.1 require python 3.10 minimum
	- python: "3.9"
	django: 5.0
	- python: "3.9"
	django: 5.1
	# django 4.0 only goes up to python 3.10
	- python: "3.11"
	django: 4.0
	- python: "3.12"
	django: 4.0
	- python: "3.13"
	django: 4.0
	# django 4.1 only goes up to python 3.11
	- python: "3.12"
	django: 4.1
	- python: "3.13"
	django: 4.1
	steps:
	- name: Checkout repository
	uses: actions/checkout@v4

	- name: Setup Python
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python }}

	# Base python cache on the hash of test requirements file
	# if the file changes, the cache is invalidated.
	- name: Cache pip
	uses: actions/cache@v4
	with:
	path: ~/.cache/pip
	key: pip-${{ hashFiles('requirements-test.txt') }}
	restore-keys: \|
	pip-${{ hashFiles('requirements-test.txt') }}

	- name: Install package with dependencies
	run: \|
	pip install -q Django==${{ matrix.django }}
	pip install -r requirements-test.txt

	- name: Run python tests
	run: python tests/run_tests.py

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