Trace — 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); })()";

  // Rotate the problem so re-runs add a fresh row instead of colliding.
  const POOL = ['valid-parentheses', 'merge-two-sorted-lists', 'best-time-to-buy-and-sell-stock', 'climbing-stairs', 'maximum-subarray', 'contains-duplicate'];
  const PROBLEM = POOL[Date.now() % POOL.length];

  await page.context().setExtraHTTPHeaders({ 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/154.0.0.0 Safari/537.36' });
  const noise = ['**/cdn-cgi/scripts/**/email-decode.min.js', '**/sentry-cdn.com/**', '**/browser.sentry-cdn.com/**', '**/cdn.segment.com/**', '**/connect.facebook.net/**', '**/www.googletagmanager.com/**'];
  for (const pattern of noise) {
    await page.route(pattern, function (r) { return r.abort(); }).catch(function () {});