}
  }

  public void testInvalid() {
    for (String name : INVALID_NAME) {
      assertThrows(IllegalArgumentException.class, () -> InternetDomainName.from(name));
    }
  }

  public void testPublicSuffix() {
    for (String name : PS) {
      InternetDomainName domain = InternetDomainName.from(name);
      assertTrue(name, domain.isPublicSuffix());
      assertTrue(name, domain.hasPublicSuffix());