Add lint to spot duplicate titles #123

	name: Lint and test

	on:
	- push
	- pull_request


	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-versions:
	- "3.10"
	- "3.11"
	- "3.12"
	- "3.13"

	steps:
	- uses: actions/checkout@v3

	- uses: psf/black@stable
	with:
	options: "--check --verbose"
	src: "yml2block/"

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install poetry
	run: \|
	python -m pip install --upgrade pip
	pip install poetry

	- name: Install dependencies with poetry
	run: \|
	poetry install --extras tests

	- name: Test that direct execution works
	run: \|
	poetry run python yml2block --help

	- name: Run unit tests
	run: \|
	poetry run pytest -v tests/unit_tests.py

	- name: Run integration tests
	run: \|
	poetry run pytest -v tests/integration_tests.py

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