@Test
  @SpecAssertion(section = "6.11", id = "m")
  public void testReportAsSingleViolation() {
    ConstraintDescriptor<?> descriptor = getConstraintDescriptor(Order.class, "orderNumber");
    assertFalse(descriptor.isReportAsSingleViolation());

    descriptor = getConstraintDescriptor(Person.class, "firstName");
    assertTrue(descriptor.isReportAsSingleViolation());
  }