Fix `_metadata_from_filename` and add test #527

	# Workflow that installs SNOwGLoBES and runs an integration test

	name: Integration Tests

	# Controls when the action will run. Triggers the workflow on push or pull request
	# events but only for the main branch
	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]
	types: [opened, synchronize, reopened, ready_for_review]

	jobs:
	run:
	# Only execute integration test if PR is not a draft
	if: github.event.pull_request.draft == false

	runs-on: ubuntu-latest
	strategy:
	# Add a list of python versions we want to use for testing.
	matrix:
	python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']

	steps:
	- uses: actions/checkout@v4
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	- name: Install SNEWPY
	run: \|
	pip install ".[dev]"
	- name: Run Integration Tests
	run: \|
	python -m unittest python/snewpy/test/simplerate_integrationtest.py
	pytest -m 'snowglobes'
	- name: Run Jupyter notebooks
	run: \|
	pip install nbclient ipykernel
	jupyter kernelspec list
	cd doc/nb/
	jupyter execute ccsn/*.ipynb
	jupyter execute presn/*.ipynb
	jupyter execute AnalyticFluence.ipynb FlavorTransformation.ipynb
	# Download necessary progenitor file, before executing the notebook
	python -c 'from snewpy.models.ccsn import Zha_2021; from astropy import units as u; _ = Zha_2021(progenitor_mass=17*u.solMass)'
	jupyter execute SNOwGLoBES_usage.ipynb

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