Add optional source/target name for Relation #1699

	name: Tests

	on: [ push, pull_request ]

	jobs:
	tests:
	name: Tests
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ ubuntu-latest ]
	python-version: [ "3.8", "3.10" ]
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	- name: Set PyTest options
	if: github.event_name == 'pull_request'
	run:
	echo "PYTEST_ADDOPTS=-m 'not nonpublic'" >> $GITHUB_ENV
	- name: Check PyTest options
	run:
	echo $PYTEST_ADDOPTS
	- name: Install dependencies
	run: \|
	pip install "tox<4.0.0"
	BIOONTOLOGY_VERSION=1.30
	echo "bio ontology version: ${BIOONTOLOGY_VERSION}"
	mkdir -p $HOME/.indra/bio_ontology/$BIOONTOLOGY_VERSION
	wget -nv https://bigmech.s3.amazonaws.com/travis/bio_ontology/$BIOONTOLOGY_VERSION/mock_ontology.pkl -O $HOME/.indra/bio_ontology/$BIOONTOLOGY_VERSION/bio_ontology.pkl
	- name: Test with pytest
	run:
	tox -e py
	env:
	INDRA_NEO4J_URL: ${{ secrets.INDRA_NEO4J_URL }}
	INDRA_NEO4J_USER: ${{ secrets.INDRA_NEO4J_USER }}
	INDRA_NEO4J_PASSWORD: ${{ secrets.INDRA_NEO4J_PASSWORD }}

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