@Test(expected = UnsupportedOperationException.class)
public void testGetSimilarities_badCombination() throws Exception {

    DateTimeFormatter dtf = DateTimeUtils.PARAMETER_WITH_DAY_DTF.withZone(dtZone);
    String startTimeStr = dtf.print(mentionTime.minusDays(1));
    String endTimeStr = dtf.print(mentionTime.plusDays(1));
    underTest.getSimilarities(startTimeStr, endTimeStr,
                              DimensionType.ROOM.getDimensionName(),
                              DimensionType.ROOM.getDimensionName(), "true");
}