def test_slicer_odd():
it = tools.slicer(range(5), 2)
assert next(it) == (0, 1)
assert next(it) == (2, 3)
assert next(it) == (4, )
with pytest.raises(StopIteration):
next(it)
def test_slicer_even():
it = tools.slicer(range(100), 10)
for idx, actual in enumerate(it):
assert isinstance(actual, tuple)
assert len(actual) == 10
# Verify that the values are correct
assert actual == tuple((10 * idx) + i for i in range(len(actual)))
assert idx == 9
