React Testing Library And Jest- The Complete Guide Apr 2026

test('should increment counter', () => const result = renderHook(() => useCounter(0))

// Async (for elements that appear later) await screen.findByText('Loaded') React Testing Library and Jest- The Complete Guide

expect(await screen.findByText('Valid email required')).toBeInTheDocument() ) ✅ DO // Query by accessible name screen.getByRole('button', name: /submit/i ) // Use findBy for async elements expect(await screen.findByText('Loaded')).toBeInTheDocument() test('should increment counter', () => const result =