CountryUtil { public static Country lookupByIso2(String iso2) { return byIso2.get(iso2); } private  CountryUtil(); static Country lookupByIso2(String iso2); static ArrayList<Country> parse(InputStream is); static List<Country> getCountriesByName();  }
@Test public void lookupByIso2() throws Exception { Country result0 = CountryUtil.lookupByIso2("US"); Assert.assertEquals(result0.getCode(), "US"); result0 = CountryUtil.lookupByIso2("GB"); Assert.assertEquals(result0.getCode(), "GB"); }