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Playwright
Core details
Title
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Description
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Playwright is a browser automation library for end-to-end testing, supporting Chromium, Firefox, and WebKit with a single API for reliable, cross-browser tests. It excels in handling modern web apps with features like auto-waiting and tracing.
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Usage & Trade-offs
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When to use it
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Use Playwright when: - Writing E2E tests for SPAs with complex interactions. - Needing multi-browser coverage without extra setup. - Testing mobile viewports or APIs alongside UI. - Migrating from Selenium for faster, flakier-free tests.
Pros
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- Fast execution with parallel test running. - Built-in codegen for quick test authoring. - Network interception for mocking APIs. - Detailed traces and screenshots for debugging. - Language-agnostic (JS, Python, .NET, Java).
Cons
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- Heavier resource usage for headless browsers. - Learning curve for advanced fixtures and locators. - CI integration requires Docker for consistency. - Less mature ecosystem than Selenium. - Potential compatibility issues with shadow DOM.
Notes
Note: Run tests in CI with --headed for visual debugging. Use page.waitForSelector with visibility checks. Combine with unit tests for comprehensive coverage.
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