itsual Browser Testing
Overview
Some behaviors can only be confidently verified in a real browser. Use browser testing selectively for high-value user flows and visual/accessibility checks.
When to Use
- Critical user journeys (login, checkout, core workflows)
- Visual or layout regressions
- Accessibility validation in a real browser
- Debugging frontend issues that only appear at runtime
Core Practices
- Prefer stable selectors (roles, labels, test ids) over brittle CSS/XPath
- Keep E2E tests focused and relatively few — they are slower and more fragile
- Combine with component and unit tests for speed
- Capture screenshots or traces on failure for easier debugging
- Run against realistic data and viewports when relevant
Verification
- Critical paths have automated browser coverage or a clear manual test script
- Failures produce actionable artifacts (screenshots, traces, logs)