webapp-testing

Run `python scripts/playwright_runner.py <url>` after installing Playwright with `pip install playwright && playwright install chromium`. The script returns JSON with page title, status code, element counts, and performance timings.

Run the runner script with the `--a11y` flag to audit accessibility basics. It counts images without alt attributes, unlabeled buttons, form labels, and heading structure (h1-h3) on the target page.

Prioritize happy-path user flows first, then authentication flows, critical business actions, and error handling. E2E tests are expensive to maintain, so reserve them for critical paths and cover the rest with component and integration tests.

No, the script requires both the playwright Python package and the Chromium browser binary. Install them with `pip install playwright && playwright install chromium`, otherwise the script returns an error JSON with install instructions.

Flakiness usually comes from hardcoded waits and shared test state. Use Playwright's built-in auto-waiting assertions, isolate each test with clean state, enable retries on CI, and capture traces on first retry to debug failures.