hscspring/create-vibe-app-examples/webapp-testing

User task → Is it static HTML?
    ├─ Yes → Read HTML file directly for selectors
    │         └─ Write Playwright script
    │
    └─ No (dynamic webapp) → Is server already running?
        ├─ No → Start server first, then test
        │
        └─ Yes → Reconnaissance-then-action:
            1. Navigate and wait for networkidle
            2. Take screenshot or inspect DOM
            3. Identify selectors from rendered state
            4. Execute actions

from playwright.sync_api import sync_playwright
with sync_playwright() as p:
    browser = p.chromium.launch(headless=True)
    page = browser.new_page()
    page.goto('http://localhost:5173')
    page.wait_for_load_state('networkidle')  # CRITICAL: Wait for JS
    
    # Reconnaissance
    page.screenshot(path='/tmp/inspect.png', full_page=True)
    
    # Actions
    page.click('button#submit')
    
    browser.close()