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Many teams think if a tool opens Chrome and passes in CI, testing is done. This is wrong. It hides real trade-offs. You need support for different browsers and complex apps.
One browser test is easy. A scaling approach is hard. Chrome tests miss Safari or Firefox bugs. Coverage is a label if it is not real.
Ask these questions when comparing tools:
- Does the tool run on real browser engines?
- Does it work with browsers your users use?
- Do you control versions in CI?
Features are easy to list. Maintenance is hard. A tool with every feature is bad if tests are hard to write. Focus on selector strategy and debugging.
Fragile CSS paths break tests. Use stable abstractions. This keeps tests alive longer.
Flakiness is a system problem. It comes from timing and data. Compare tools by how they handle these items:
- Waiting and locator stability
- Browser isolation
- Time and locale setup
Total runtime lies. Cold starts and caches change numbers. Separate these costs:
- Browser startup time
- Execution time
- Setup and teardown
Stop asking which tool is best. Ask which tool balances coverage, maintenance, and reliability for your team.
Start with the browsers your users have. Look at the app shapes causing pain. Judge how easy it is to write stable tests and keep the suite healthy.