react testing library for hooks
import { renderHook, act } from '@testing-library/react-hooks' import useCounter from './useCounter' test('should increment counter', () => { const { result } = renderHook(() => useCounter()) act(() => { result.current.increment() }) expect(result.current.count).toBe(1) })
react testing library for hooks
npm install --save-dev @testing-library/react-hooks
react testing library for hooks
import { useState, useCallback } from 'react' function useCounter() { const [count, setCount] = useState(0) const increment = useCallback(() => setCount((x) => x + 1), []) return { count, increment } } export default useCounter
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