Account for pipeline runs with no measurement pairs file #444

	name: pytest

	on: [pull_request]

	jobs:
	test:
	runs-on: ubuntu-20.04
	strategy:
	fail-fast: false
	matrix:
	python_version: ['3.8', '3.9']

	steps:
	- uses: actions/checkout@v2

	- uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python_version }}
	- uses: Gr1N/setup-poetry@v8
	- name: Cache Python dependencies
	uses: actions/cache@v2
	with:
	path: ~/.cache/pypoetry/virtualenvs
	key: ${{ runner.os }}-poetry-${{ hashFiles('poetry.lock') }}

	- name: Install python dependencies
	run: poetry install
	- name: Run pytests
	run: \|
	poetry run pytest --cov=vasttools -vv

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