playwright-best-practices

Fix flaky Playwright tests by using web-first assertions with built-in auto-waiting, which automatically retries checks until elements reach an actionable state, eliminating timing flakiness. This removes the need for manual timeout polling in your test suite.

The best Playwright locators for resilient tests are user-facing attributes like roles, labels, and placeholders. Prioritizing these semantic locators over brittle CSS or XPath selectors ensures tests remain stable across UI structure changes.

Set up Playwright fixtures to encapsulate shared setup logic, providing isolated contexts to each test without leaking state. Fixtures override or extend standard objects like pages, ensuring clean environments and promoting test independence.

Use the Page Object Model in Playwright tests to encapsulate page interactions within reusable classes, simplifying test maintenance and promoting code reuse. Colocating these objects by feature or journey organizes test suites for long-term maintainability.

Yes, this approach works with existing .spec.ts and .test.ts files by auditing current tests, replacing brittle selectors with role-based locators, and incrementally introducing page objects. You can validate stability improvements by running the modified test with Playwright.

Avoid brittle selectors and excessive timeouts in Playwright because CSS or XPath selectors break during UI refactoring, and manual timeout polling causes unpredictable failures. Using semantic locators and auto-waiting assertions enforces test stability and reduces maintenance overhead.