import { validateUserName } from './validateUserName'; describe('validate user name', () => { it('should allow good name', () => { expect(validateUserName('Раз_Два Три_34567')).toEqual(true); }); it('should not allow bad name', () => { expect(validateUserName('**blah123')).toEqual(false); }); it('should not allow only spaces', () => { expect(validateUserName(' ')).toEqual(false); }); });