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Async/Await Patterns
6.1OverviewModern test frameworks rely heavily on asynchronous execution. Browser automation (Playwright, Puppeteer), concurrent API testing, and…6.2Why Async Matters for QAWhen your test clicks a button, the browser does not instantly update. When your test sends an API request, the response does not arrive…6.3TypeScript/JavaScript Async PatternsThe await keyword pauses execution until the operation completes. Without it, the code continues immediately — often before the operation…6.4Python Async Patterns6.5Common Async PitfallsAlready covered above — the most dangerous bug because the test passes silently.6.6Async in Test Frameworks6.7Practical Exercise1. Write a test that sends 50 concurrent API requests using Promise.all / asyncio.gather and verifies all return 200 2. Intentionally…6.8Key Takeaways- Every async operation must be awaited — forgotten await is the most common async bug - Use Promise.all / asyncio.gather for concurrent…