Implementation of a stepper function #759

	# Run CI tests with pytest and update coverage to coveralls

	name: CI

	on:
	push:
	pull_request:
	workflow_dispatch:
	schedule:
	- cron: '0 6 * * 1'

	jobs:
	test:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest, windows-latest]
	python-version: ['3.7', '3.11']

	steps:
	- uses: actions/checkout@v3
	with:
	submodules: recursive
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	pip install -U pip
	pip install -U wheel
	pip install --prefer-binary -r tests/requirements.txt
	pip install --prefer-binary -e .
	- name: Test and coverage
	run: \|
	pytest tests/ --cov=pysd -n 2
	coverage xml
	- name: Coveralls
	uses: coverallsapp/github-action@v2
	with:
	file: coverage.xml
	if: ${{ matrix.python-version == 3.7 && matrix.os == 'ubuntu-latest' }}
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

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