import { render, screen } from '@testing-library/react'; import SegmentedControl from './SegmentedControl'; describe('', () => { it('handles a click', () => { const mockOnChange = jest.fn< [ { activeIndex: number; event: React.MouseEvent; }, ], // @ts-expect-error - TS2344 - Type 'undefined' does not satisfy the constraint 'any[]'. undefined >(); render( , ); screen.getByText('Item1').click(); expect(mockOnChange).toHaveBeenCalled(); screen.getByText('Item2').click(); expect(mockOnChange).toHaveBeenCalled(); }); });