def test_is_iterator(self):
self.assertEqual(
next(parse_ranges('1-4')),
1,
)
def test_three_ranges(self):
self.assertEqual(
list(parse_ranges('1-2,4-4,8-10')),
[1, 2, 4, 8, 9, 10],
)
def test_four_ranges(self):
self.assertEqual(
list(parse_ranges('0-0,4-8,20-21,43-45')),
[0, 4, 5, 6, 7, 8, 20, 21, 43, 44, 45],
)
def test_single_range(self):
self.assertEqual(
list(parse_ranges('1-4')),
[1, 2, 3, 4],
)
