Microsoft's Playwright is more than just a headless browser control, it has an entire testing framework built around its browser automation capabilities. The `@playwright/test` package includes a test runner, assertion library, and other features to ease end-to-end testing. Playwright's test runner is now available in the Checkly runtime 2022.02 as a public beta, allowing users to require it in their Browser checks. This framework offers multiple tests in one file, web-first assertions, and debuggable traces, making it easier to write and maintain tests. These new features are part of Microsoft's Launch Week, where they will be covered over the next few days, including GitHub Sync for managing Browser checks.