import '@testing-library/jest-dom' import { render, screen } from '@testing-library/react' import { getLocaleConfig } from '../utils' import { AmountInput } from '../index' jest.mock('../utils/getLocaleConfig', () => ({ getLocaleConfig: jest.fn().mockReturnValue({ groupSeparator: ',', decimalSeparator: '.' }), })) describe(' no locale', () => { it('should have empty string for groupSeparator and decimalSeparator if not passed in and cannot find default locale', () => { (getLocaleConfig as jest.Mock).mockReturnValue({ groupSeparator: '', decimalSeparator: '' }) render() expect(screen.getByRole('textbox')).toHaveValue('123456789') }) })