// ======================================
@Test
public void shouldRaiseConstraintViolationCauseInvalidZipCode() {
ValidatorFactory vf = Validation.buildDefaultValidatorFactory();
Validator validator = vf.getValidator();
Address address = new Address("233 Spring Street", "New York", "NY", "DummyZip", "USA");
Set<ConstraintViolation<Address>> violations = validator.validate(address);
assertEquals(1, violations.size());
vf.close();
}