Add position:absolute and game to demo #8810

	name: Test Textual module

	on:
	pull_request:
	paths:
	- ".github/workflows/pythonpackage.yml"
	- "**.py"
	- "**.pyi"
	- "**.css"
	- "**.ambr"
	- "**.lock"
	- "Makefile"

	env:
	PYTEST_ADDOPTS: "--color=yes"

	jobs:
	build:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest, windows-latest, macos-latest]
	python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
	defaults:
	run:
	shell: bash
	steps:
	- uses: actions/[email protected]
	- name: Install Poetry
	run: pipx install poetry==1.7.1
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/[email protected]
	with:
	python-version: ${{ matrix.python-version }}
	cache: "poetry"
	- name: Install dependencies
	run: poetry install --no-interaction --extras syntax
	if: ${{ matrix.python-version != '3.12' }}
	- name: Install dependencies for 3.12 # https://github.com/Textualize/textual/issues/3491#issuecomment-1854156476
	run: poetry install --no-interaction
	if: ${{ matrix.python-version == '3.12' }}
	- name: Test with pytest
	run: \|
	poetry run pytest tests -v --cov=./src/textual --cov-report=xml:./coverage.xml --cov-report term-missing
	if: ${{ matrix.python-version != '3.12' }}
	- name: Test with pytest for 3.12 # https://github.com/Textualize/textual/issues/3491#issuecomment-1854156476
	run: \|
	poetry run pytest tests -v --cov=./src/textual --cov-report=xml:./coverage.xml --cov-report term-missing -m 'not syntax'
	if: ${{ matrix.python-version == '3.12' }}
	- name: Upload snapshot report
	if: always()
	uses: actions/upload-artifact@v3
	with:
	name: snapshot-report-textual
	path: snapshot_report.html

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