React Testing Library And Jest- The Complete Guide -

// Use userEvent instead of fireEvent await user.click(button)

test('should increment counter', () => const result = renderHook(() => useCounter(0)) React Testing Library and Jest- The Complete Guide

act(() => result.current.increment() )

await user.click(button) expect(button).toHaveTextContent('ON') // Use userEvent instead of fireEvent await user

render(<UserProfile userId=1 />)

const button = screen.getByRole('button') expect(button).toHaveTextContent('OFF') const result = renderHook(() =&gt

// Test behavior, not implementation expect(screen.getByText('Welcome John')).toBeInTheDocument()