Playwright Basics to Intermediate Q&A for Faster E2E Testing Mastery

Build practical Playwright interview confidence with this basics-to-intermediate Q&A set for end-to-end testing. Learn how to write stable selectors, apply auto-waiting, structure reusable fixtures, handle network mocks, debug flaky tests with traces, and scale browser coverage for real-world QA automation workflows. Topics Covered: 1. What makes Playwright a strong choice for modern end-to-end web testing? 2. How does locator-based testing improve stability compared to raw CSS selectors? 3. Why should you avoid fixed delays like `waitForTimeout` in most tests? 4. What is the practical role of fixtures in Playwright Test? 5. How do Playwright projects support intermediate-level test strategy? 6. When should you mock API calls with `page.route()`? 7. What is the best way to reuse authenticated sessions across tests? 8. How does Playwright Trace Viewer help debug failures effectively? 9. Why is `expect(locator).toHaveText()` preferred over immediate manual text checks? 10. What should be your first optimization when a Playwright suite gets slow?