fix migration on mysql #184

	name: Test

	on: [push, pull_request]

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	max-parallel: 5
	matrix:
	python-version: ['3.7', '3.8', '3.9', '3.10', '3.11', 'pypy-3.8']

	steps:
	- uses: actions/checkout@v3

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}

	- name: Get pip cache dir
	id: pip-cache
	run: \|
	echo "::set-output name=dir::$(pip cache dir)"

	- name: Cache
	uses: actions/cache@v3
	with:
	path: ${{ steps.pip-cache.outputs.dir }}
	key:
	${{ matrix.python-version }}-v1-${{ hashFiles('/setup.py') }}-${{ hashFiles('/tox.ini') }}
	restore-keys: \|
	${{ matrix.python-version }}-v1-

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	python -m pip install --upgrade 'tox<4' tox-gh-actions

	- name: Tox tests
	run: \|
	tox -v

	- name: Upload coverage
	uses: codecov/codecov-action@v3
	with:
	name: Python ${{ matrix.python-version }}

Provide feedback