* google.invalid}. This is the recommended method for determining whether a domain is potentially
   * an addressable host.
   *
   * <p>Note that this method is equivalent to {@link #hasRegistrySuffix()} because all registry
   * suffixes are public suffixes <i>and</i> all public suffixes have registry suffixes.
   *
   * @since 6.0
   */
  public boolean hasPublicSuffix() {

      assertTrue(name, domain.hasRegistrySuffix());
      assertTrue(name, domain.isUnderRegistrySuffix());
    }
  }

  public void testUnderRegistrySuffix() {
    for (String name : SOMEWHERE_UNDER_RS) {
      InternetDomainName domain = InternetDomainName.from(name);
      assertFalse(name, domain.isRegistrySuffix());
      assertTrue(name, domain.hasRegistrySuffix());

      assertTrue(name, domain.hasRegistrySuffix());
      assertTrue(name, domain.isUnderRegistrySuffix());
    }
  }

  public void testUnderRegistrySuffix() {
    for (String name : SOMEWHERE_UNDER_RS) {
      InternetDomainName domain = InternetDomainName.from(name);
      assertFalse(name, domain.isRegistrySuffix());
      assertTrue(name, domain.hasRegistrySuffix());