Test of chromaticity fit #289

	# Runs all tests
	name: Tests

	defaults:
	run:
	shell: bash

	on: # Runs on all push events to any branch
	push:

	jobs:
	tests:
	name: ${{ matrix.os }} / ${{ matrix.python-version }}
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-20.04, ubuntu-22.04, windows-latest, macos-latest]
	python-version: [3.8, 3.9, "3.10", "3.11"]

	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 full Python version
	id: full-python-version
	run: echo ::set-output name=version::$(python -c "import sys; print('-'.join(str(v) for v in sys.version_info))")

	- name: Set up cache
	uses: actions/cache@v2
	id: cache
	with:
	path: .venv
	key: venv-${{ runner.os }}-${{ steps.full-python-version.outputs.version }}

	- name: Ensure cache is healthy
	if: steps.cache.outputs.cache-hit == 'true'
	run: pip --version >/dev/null 2>&1 \|\| rm -rf .venv

	- name: Upgrade pip, setuptools and wheel
	run: \|
	python -m pip install --upgrade pip
	pip install setuptools wheel

	- name: Install package
	run: pip install '.[test]'

	- name: Run tests
	run: python -m pytest

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