test: add complex visual workflow campaign #6

	name: complex-visual

	on:
	pull_request:
	branches: [main]
	paths:
	- benchmark/complex_visual/**
	- tests/test_complex_visual_campaign.py
	- .github/workflows/complex-visual.yml
	workflow_dispatch:

	concurrency:
	group: complex-visual-${{ github.event.pull_request.number \|\| github.ref }}
	cancel-in-progress: true

	jobs:
	headed-pixel-campaign:
	runs-on: ubuntu-latest
	timeout-minutes: 15

	steps:
	- name: Checkout repository
	uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2

	- name: Set up Python
	uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
	with:
	python-version: '3.12'

	- name: Install uv
	uses: astral-sh/setup-uv@11f9893b081a58869d3b5fccaea48c9e9e46f990 # v8.3.2
	with:
	version: "0.11.29"

	- name: Install dependencies
	run: uv sync --locked --extra dev --no-sources

	- name: Ensure local X11 fixture tools
	run: \|
	if ! command -v Xvfb >/dev/null \|\| ! command -v xvfb-run >/dev/null; then
	sudo apt-get update
	sudo apt-get install --yes xvfb xauth
	fi
	python -c 'import tkinter'

	- name: Run headed pixel campaign
	env:
	COMPLEX_VISUAL_OUTPUT: ${{ runner.temp }}/complex-visual-artifacts
	run: >-
	xvfb-run --auto-servernum --server-args="-screen 0 1280x700x24"
	uv run --no-sources pytest -q
	tests/test_complex_visual_campaign.py

	- name: Upload exact campaign evidence
	if: always()
	uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
	with:
	name: complex-visual-${{ github.sha }}
	path: ${{ runner.temp }}/complex-visual-artifacts
	if-no-files-found: error
	retention-days: 7

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