MOAR Improvements: Cross-OS testing, `.gitignore` updates, supporting… #18

	name: Testing

	on:
	push:
	pull_request:

	defaults:
	run:
	shell: /bin/bash --noprofile --norc -Eeuxo pipefail {0}

	jobs:
	test:
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	os:
	- ubuntu-latest
	- windows-latest
	- macos-latest
	python-version:
	- '3.6'
	- '3.7'
	- '3.8'
	- '3.9'
	- '3.10'
	- '3.11'
	# - '3.12' # FixMe: https://github.com/pylint-dev/pylint-pytest/issues/3
	# Just for Python 3.6 which is not available in `ubuntu-latest`.
	exclude:
	- python-version: '3.6'
	os: ubuntu-latest
	include:
	- python-version: '3.6'
	os: ubuntu-20.04

	steps:
	- uses: actions/checkout@v3

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	cache: 'pip'
	cache-dependency-path: setup.py

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	python -m pip install tox "tox-gh-actions>=3.0; python_version >= '3.7'" "tox-gh-actions<3.0; python_version < '3.7'"

	- name: Modify tox.ini for Python3.6
	if: matrix.python-version == '3.6'
	run: sed -i '/\[tox\]/a requires = virtualenv<20.22.0' tox.ini

	- name: Test with tox
	run: tox

	- name: Test with tox
	if: matrix.python-version == '3.6'
	run: tox -vv

	- name: Upload coverage reports to Codecov
	uses: codecov/codecov-action@v3
	with:
	token: ${{ secrets.CODECOV_TOKEN }}
	fail_ci_if_error: true
	files: test_artifacts/cobertura.xml

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