def test_range_expression_step():
field = DayOfMonthField('day', '2-9/3')
assert repr(field) == "DayOfMonthField('day', '2-9/3')"
date = datetime(2009, 7, 1)
assert field.get_next_value(date) == 2
date = datetime(2009, 7, 3)
assert field.get_next_value(date) == 5
date = datetime(2009, 7, 9)
assert field.get_next_value(date) is None
def test_range_expression_single():
field = DayOfMonthField('day', 9)
assert repr(field) == "DayOfMonthField('day', '9')"
date = datetime(2009, 7, 1)
assert field.get_next_value(date) == 9
date = datetime(2009, 7, 9)
assert field.get_next_value(date) == 9
date = datetime(2009, 7, 10)
assert field.get_next_value(date) is None
def test_all_expression():
field = DayOfMonthField('day', '*')
assert repr(field) == "DayOfMonthField('day', '*')"
date = datetime(2009, 7, 1)
assert field.get_next_value(date) == 1
date = datetime(2009, 7, 10)
assert field.get_next_value(date) == 10
date = datetime(2009, 7, 30)
assert field.get_next_value(date) == 30
