def test_weekday_pos_3():
expr = WeekdayPositionExpression('last', 'fri')
assert str(expr) == 'last fri'
date = datetime(2008, 2, 1)
assert expr.get_next_value(date, 'day') == 29
def test_weekday_position_expression_repr():
expr = WeekdayPositionExpression('2nd', 'FRI')
assert repr(expr) == "WeekdayPositionExpression('2nd', 'fri')"
def test_weekday_pos_2():
expr = WeekdayPositionExpression('2nd', 'wed')
assert str(expr) == '2nd wed'
date = datetime(2008, 2, 1)
assert expr.get_next_value(date, 'day') == 13
