@Test
 public void isValid_longName() {
   final String arbitraryLongName = "Williamhelmina";
   assertTrue(validator.isValid(arbitraryLongName));
 }
 @Test
 public void isValid_nameWithTwoCharacter() {
   final String arbitraryNameWithTwoCharacters = "Bo";
   assertTrue(validator.isValid(arbitraryNameWithTwoCharacters));
 }
 @Test
 public void isValid_emptyName() {
   assertFalse(validator.isValid(StringUtils.EMPTY));
 }
 @Test
 public void isValid_nameWithOneCharacter() {
   final String arbitraryNameWithOneCharacter = "A";
   assertFalse(validator.isValid(arbitraryNameWithOneCharacter));
 }
 @Test
 public void isValid_nullName() {
   assertFalse(validator.isValid(null));
 }