def test_grouper_one_group():
iterable = range(7)
grouped = grouper(iterable, group_size=20)
grouped = list(map(tuple, grouped))
assert grouped == [
(0, 1, 2, 3, 4, 5, 6),
]
def test_grouper_ragged_chunks():
iterable = range(7)
grouped = grouper(iterable, group_size=3)
grouped = list(map(tuple, grouped))
assert grouped == [
(0, 1, 2),
(3, 4, 5),
(6, ),
]
def test_grouper_length_1():
iterable = range(4)
grouped = grouper(iterable, group_size=1)
grouped = list(map(tuple, grouped))
assert grouped == [
(0, ),
(1, ),
(2, ),
(3, ),
]
def test_grouper_equal_chunks():
iterable = range(10)
grouped = grouper(iterable, group_size=2)
grouped = list(map(tuple, grouped))
assert grouped == [
(0, 1),
(2, 3),
(4, 5),
(6, 7),
(8, 9),
]