First Space-side test harness; sets up the floor for the Phase D
bundle's per-commit unit + UI tests (split leaderboard, pending-row
defaults, OAuth-required submit) without slipping a regression past
a build-only check.
requirements-dev.txt pulls -r requirements.txt then adds pytest +
playwright. One `pip install -r requirements-dev.txt && playwright
install chromium` brings a fresh venv up to speed.
tests/conftest.py exposes a session-scoped `app_url` fixture: boots
app.py in a subprocess on a free port, polls until the HTTP server
answers, yields the URL, tears the process down on teardown. Logs
land in a tmp file so a startup failure surfaces the real Gradio
traceback rather than a bare RuntimeError. Boot-time stuck-pending
sweep in submit.py is disabled via CADGENBENCH_DISABLE_BOOT_SWEEP=1
so the fixture is fast and offline-tolerant.
tests/test_smoke.py launches headless Chromium via playwright's sync
API, navigates to the fixture's URL, and asserts the Leaderboard /
Submit / A…
