public void testFilterOnDate() {
String dql = "last_modified = 2010-01-23";
AntlrDqlParser parser = new AntlrDqlParser();
FilterCriterion criterion = parser.parse(dql);
assertEquals(CriterionFieldEnum.LAST_MODIFIED_DATE, criterion.getField());
assertEquals(CriterionOperator.EQ, criterion.getOperator());
assertEquals(new DateMidnight(2010, 01, 23).toDate(), criterion.getValue());
}