Add tests for Graph class #12

	name: Python tests

	on:
	push:
	branches: ["*"]
	pull_request:
	branches: ["*"]

	jobs:
	test:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3

	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: '3.10' # или нужная версия

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install pytest
	# pip install -r requirements.txt # если есть зависимости

	- name: Run tests
	run: \|
	pytest -v

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