import CountryNameUtil from './country_name.util'; describe('CountryNameUtil', () => { it('getContryCode3()', () => { const util = new CountryNameUtil(); expect(util.getContryCode3('Australia')).toBe('AUS'); expect(util.getContryCode3('China')).toBe('CHN'); expect(util.getContryCode3('Czech Republic')).toBe('CZE'); expect(util.getContryCode3('Germany')).toBe('DEU'); }); });