update assert messages in materials_test.py #288

	# This workflow will build, check and deploy to pypi when new tags are pushed
	# matching "v*".
	# It runs on multiple python3 versions on macOS, Ubuntu and Windows.
	# Based on: https://github.com/marketplace/actions/pypi-deployment

	name: pypi

	# Run on push/PR/manually BUT only uploads with a tag (see below)
	on:
	push:
	tags: ["v*"]
	branches: [$default-branch]
	pull_request:
	workflow_dispatch:

	jobs:
	pypi_deploy:
	strategy:
	matrix:
	os: ["ubuntu-20.04"]
	python-version: ["3.9"]
	runs-on: ${{ matrix.os }}
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	- name: Build, check and deploy to pypi
	uses: casperdcl/deploy-pypi@v2
	with:
	password: ${{ secrets.PYPI_TOKEN }}
	# Create source tgz
	build: true
	# Create wheel
	pip: true
	# Only upload if a tag is pushed (otherwise just build & check)
	upload: ${{ github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags') }}

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