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React Testing Library · Matcher

toBeRequired

Test a React input change by rendering the control and calling fireEvent.change with a new target value. Assert that the handler ran and the control has that value.

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Syntax

fireEvent.change(element, { target: { value: 'new value' } })

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  • render
  • fireEvent
  • container
  • cleanup
  • rerender
  • unmount
  • asFragment

Source: FAQ | Testing Library. Checked 2026-11-03.