Clean up tests and code #62

	name: Test (Linux)

	on:
	push:
	branches:
	[main, 0.15.x, 0.16.x, 0.17.x, 0.18.x, 0.19.x, 0.20.x, 1.0.x, 1.1.x]
	pull_request:
	branches:
	[main, 0.15.x, 0.16.x, 0.17.x, 0.18.x, 0.19.x, 0.20.x, 1.0.x, 1.1.x]

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	test:
	runs-on: ${{ matrix.os }}
	defaults:
	run:
	shell: bash -e {0} # -e to fail on error

	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest]
	python: ["3.9", "3.10", "3.11"]

	name: ${{ matrix.name }} Python ${{ matrix.python }}

	env:
	OS: ${{ matrix.os }}
	PYTHON: ${{ matrix.python }}

	steps:
	- uses: actions/checkout@v4
	- name: Set up Python ${{ matrix.python }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python }}
	cache: "pip"
	cache-dependency-path: "**/pyproject.toml"

	- name: Install test dependencies
	run: \|
	python -m pip install --upgrade pip wheel

	- name: Install dependencies
	run: \|
	pip install --pre ".[tests]"

	- name: Test
	env:
	MPLBACKEND: agg
	PLATFORM: ${{ matrix.os }}
	DISPLAY: :42
	run: \|
	coverage run -m pytest -v --color=yes
	- name: Report coverage
	run: \|
	coverage report
	- name: Upload coverage
	uses: codecov/codecov-action@v3

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