Bump actions/checkout from 3 to 4 #13

	name: Build and test

	on:
	workflow_dispatch:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main

	jobs:
	check-black:
	# fail it if doesn't conform to black
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: psf/black@stable
	with:
	options: "--check --verbose"

	build-and-test:

	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest, macos-latest, windows-latest]
	python-version: ["3.9", "3.11"]

	steps:
	- uses: actions/checkout@v4
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}
	cache: 'pip'
	cache-dependency-path: 'requirements_tests.txt'
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements_tests.txt
	pip install -e .
	- name: Lint with flake8
	# fail it if doesn't pass flake8
	run: \|
	flake8 . --statistics
	- name: Test with pytest
	# fail it if doesn't pass test suite
	run: \|
	pytest

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