check for placement node that matches uri before creating one #64

	name: Run Unit Tests

	on:
	pull_request:
	push:
	branches: [master]

	jobs:
	test:
	runs-on: ubuntu-20.04 # last version that can run Python 3.6
	strategy:
	matrix:
	python-version: ['3.6', '3.7', '3.8', '3.9', '3.10', '3.11']

	steps:
	- uses: actions/checkout@v3
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	architecture: x64
	- name: Display Python version
	run: python -c "import sys; print(sys.version)"
	- name: Before tests (same as "before_install")
	run: \|
	pip install --upgrade -r requirements.txt
	- name: Run test suite (same as "script")
	run: \|
	pytest --cov=s4
	- name: Coveralls
	uses: coverallsapp/github-action@v2

	# Use a container to run Python 2 (host OS doesn't matter)
	# required because the setup-python action dropped support for python 2
	# Don't bother with coveralls or pypi here, just run the tests
	test-python2:
	runs-on: ubuntu-latest
	container: python:2.7.18-buster

	steps:
	- uses: actions/checkout@v3
	- name: Display Python version
	run: python -c "import sys; print(sys.version)"
	- name: Before tests (same as "before_install")
	run: \|
	pip install --upgrade -r requirements.txt
	- name: Run test suite (same as "script")
	run: \|
	pytest --cov=s4

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