public void testBuiltin() throws EvaluationException {
ITerm date1 = Factory.CONCRETE.createDate(2010, 4, 26);
ITerm date2 = Factory.CONCRETE.createDate(2010, 4, 26);
ITerm date3 = Factory.CONCRETE.createDate(1997, 3, 12);
DateNotEqualBuiltin builtin = new DateNotEqualBuiltin(X, Y);
args = Factory.BASIC.createTuple(date1, date1);
actual = builtin.evaluate(args);
assertEquals(null, actual);
builtin = new DateNotEqualBuiltin(X, Y);
args = Factory.BASIC.createTuple(date1, date2);
actual = builtin.evaluate(args);
assertEquals(null, actual);
builtin = new DateNotEqualBuiltin(X, Y);
args = Factory.BASIC.createTuple(date1, date3);
actual = builtin.evaluate(args);
assertEquals(EMPTY_TUPLE, actual);
}
