@Test
public void testUpdateReservationNoDefinition() {

  ReservationUpdateRequest request = new ReservationUpdateRequestPBImpl();
  request.setReservationId(ReservationSystemTestUtil.getNewReservationId());
  Plan plan = null;
  try {
    plan = rrValidator.validateReservationUpdateRequest(rSystem, request);
    Assert.fail();
  } catch (YarnException e) {
    Assert.assertNull(plan);
    String message = e.getMessage();
    Assert
        .assertTrue(message
            .startsWith("Missing reservation definition. Please try again by specifying a reservation definition."));
    LOG.info(message);
  }
}