public static Member createInvalidMemberWithNoNationalNumber() {
   return Member.MemberBuilder.member()
       .withAddress("DefaultAdress")
       .withCity("DefaultCity")
       .withEmail("DefaultEmail")
       .withFirstName("Stumpy")
       .withLastName("Lumpy")
       .withPostalCode(123123)
       .withBirthDate(LocalDate.now())
       .withPhoneNumber(07673322222)
       .build();
 }
 public static Member createMemberWithNoUUID() {
   return Member.MemberBuilder.member()
       .withAddress("DefaultAdress")
       .withCity("DefaultCity")
       .withEmail("DefaultEmail")
       .withFirstName("Stumpy")
       .withLastName("Lumpy")
       .withNationalNumber(RandomStringUtils.randomNumeric(12))
       .withPostalCode(123123)
       .withBirthDate(LocalDate.now())
       .withPhoneNumber(07673322222)
       .build();
 }
 public static Member createMember() {
   LocalDate date = LocalDate.of(2015, 4, 4);
   return Member.MemberBuilder.member()
       .withAddress("DefaultAdress")
       .withCity("DefaultCity")
       .withEmail("DefaultEmail")
       .withFirstName("Stumpy")
       .withLastName("Lumpy")
       .withNationalNumber(String.valueOf(RandomStringUtils.randomNumeric(12)))
       .withPostalCode(123123)
       .withUUID(UUID.randomUUID().toString())
       .withBirthDate(date)
       .withPhoneNumber(07673322222)
       .build();
 }