How do you test a React form submission?
Render the form, type into inputs with userEvent, click the submit button, and assert the result, like a success message or a call to the API mock. Test the full user flow, not the internal form state.
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More FAQs in React Testing Interview Questions With Answers
RTL is a library for testing React components the way a user uses them: rendering, finding by role and text, and simulating events. Use it because tests that resemble user behavior give more confidence and survive refactors.
Enzyme tested implementation details like instance methods and state. RTL tests behavior. Enzyme tests break on refactors; RTL tests survive them. This is why the React team recommends RTL.
Role and text queries like getByRole and getByText. These query what the user experiences and double as accessibility checks. Test ids are a fallback; class names should be avoided as they tie tests to styling.
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