### Question:
DomainUtil { public static String geneDomainPunyName(String domainName) { if (StringUtils.isBlank(domainName)) { return domainName; } return IDN.toASCII(domainName); } private  DomainUtil(); static boolean isArpaTldAndLabelIsValid(String domainName); static boolean validateDomainNameIsValidIdna(String domainName,
            boolean forSearch); static boolean validateSearchStringIsValidIdna(String searchString); static String deleteLastPoint(String paramStr); static String getLowerCaseByLabel(String str); static String safeGeneDomainPunyName(String domainName); static String geneDomainPunyName(String domainName); static String urlDecodeAndReplaceAsciiToLowercase(String str); static String replaceAsciiToLowercase(String str); static String urlDecode(String str); static String iso8859Decode(String str); static boolean isLdh(String domain); static boolean validateSearchLdnName(String searchString); static final String XN_PREFIX; static final String ACE_PREFIX; static final int MAX_DOMAIN_LENGTH_WITHOUT_LAST_DOT; static final int MIN_DOMAIN_LENGTH_WITHOUT_LAST_DOT; static final String ARPA_SUFFIX; static final String IPV4_ARPA_SUFFIX; static final String IPV6_ARPA_SUFFIX; static final int MAX_ASCII_CODE; static final String BLANK_IN_DOMAIN; static final java.lang.String DISALLOWED_DELIMITERS; }### Answer:
@Test public void testGeneDomainPunyNameUnicode() { String result = DomainUtil.geneDomainPunyName("中文.中国"); assertEquals("xn--fiq228c.xn--fiqs8s", result); }
@Test public void testGeneDomainPunyNamePunycode() { String result = DomainUtil.geneDomainPunyName("xn--fiq228c.xn--fiqs8s"); assertEquals("xn--fiq228c.xn--fiqs8s", result); }