ExploreYC — app walkthrough

export async function test(page, baseUrl, screenshotPath, stepLogger) {
  const shot = (n, s) => screenshotPath.replace('.png', '-' + n + '-' + s + '.png');
  const SCROLL_THROUGH = "(async () => { const ease = t => 1 - Math.pow(1 - t, 3); const max = Math.max(0, document.body.scrollHeight - window.innerHeight); if (max < 40) return; const anim = (a, b, ms) => new Promise(res => { const t0 = performance.now(); const step = now => { const p = Math.min(1, (now - t0) / ms); window.scrollTo(0, a + (b - a) * ease(p)); p < 1 ? requestAnimationFrame(step) : res(); }; requestAnimationFrame(step); }); await anim(0, max, 1200); await new Promise(r => setTimeout(r, 300)); await anim(max, 0, 700); })()";
  await page.context().setExtraHTTPHeaders({ 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36' });
  // Inject the authenticated dev_token into localStorage before any app script runs
  await page.addInitScript(() => { try { localStorage.setItem('dev_token', 'P0wme4OnpEswcCQhMbR0imtKK7LcNQkbHed096YbiR0'); localStorage.setItem('darkMode', 'false'); } catch (e) {} });
  for (const pattern of ['**/cdn-cgi/scripts/**/email-decode.min.js','**/sentry-cdn.com/**','**/browser.sentry-cdn.com/**','**/cdn.segment.com/**','**/connect.facebook.net/**','**/*.posthog.com/**']) {
    await page.route(pattern, r => r.abort()).catch(function(){});
  }
  let n = 0;
  // ---------- PUBLIC PHASE ----------
  await page.goto(baseUrl + '/', { waitUntil: 'domcontentloaded' });