medium10 pts · first answer countsreact-testing-librarytesting

Test fails before data arrives

A component fetches users after mount (mocked in the test). This assertion fails with "Unable to find an element", but the app works in the browser. What is the fix?

render(<UserList />)
expect(screen.getByText('Ana')).toBeInTheDocument()

A.Replace getByText with queryByTextB.Add a fixed await new Promise(r => setTimeout(r, 2000)) before the assertionC.Render the component twice so the data is cachedD.Use await screen.findByText('Ana'), which retries until the element appears

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Test fails before data arrives

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