Why should I prefer role and text queries in RTL?
Because they query what the user experiences and double as accessibility checks. Test ids and class names are implementation details that can change during refactors, but roles and visible text are part of the user-facing behavior.
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More FAQs in Unit Testing React Components: Best Practices That Survive Refactors
Test behavior, not implementation. Use role and text queries, avoid asserting on internal state or instance methods, and test the user flows. If a test breaks when you refactor without changing behavior, it is too coupled to implementation.
Because userEvent simulates real user interactions more accurately. It handles the full sequence of events a real user triggers, like focus and blur on a click, giving more realistic and reliable tests than fireEvent.
The most important user flows: can a user submit the form, see an error, log in, add to cart? Focus on the critical paths that give the most confidence, rather than testing every internal function.
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