Fixed a bug in `MultilayerFilm.shape` and `MultilayerMirror.shape` where a `ValueError` was raised if `layers` was not a sequence. #571


	name: tests

	on:
	push:
	branches:
	- main
	pull_request:

	jobs:
	build:
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	os: [
	ubuntu-latest,
	windows-latest,
	macOS-latest,
	]
	python-version: ["3.10", "3.12"]
	name: ${{ matrix.os }}, Python ${{ matrix.python-version }} lint and test
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install package
	run: \|
	python -m pip install --upgrade pip
	pip install setuptools wheel
	pip install -e .[test]
	- name: Test with pytest
	run: \|
	pip install pytest pytest-cov
	pytest --doctest-modules --junitxml=junit/test-results.xml --cov=. --cov-report=xml --cov-report=html
	- name: Upload coverage to Codecov
	uses: codecov/codecov-action@v3
	with:
	token: ${{ secrets.CODECOV_TOKEN }}
	file: coverage.xml
	flags: unittests
	env_vars: OS,PYTHON
	name: codecov-umbrella

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