@Test
@SpecAssertion(section = "4.1.1", id = "h")
public void testValidateValue() {
Validator validator = TestUtil.getValidatorUnderTest();
Set<ConstraintViolation<Customer>> constraintViolations = validator.validateValue(
Customer.class, "orders[0].orderNumber", null
);
assertCorrectNumberOfViolations( constraintViolations, 1 );
assertCorrectPropertyPaths( constraintViolations, "orders[0].orderNumber" );
assertCorrectConstraintViolationMessages( constraintViolations, "An order must have an order number." );