def test_zip_cons():
# pylint: disable=missing-docstring
sl1 = SList([1, 2, 3])
sl2 = SList([2, 3, 4])
res = sl1.zip(sl2)
exp = SList([(1, 2), (2, 3), (3, 4)])
assert res == exp
def test_zip_nil():
# pylint: disable=missing-docstring
sl1 = SList()
sl2 = SList()
res = sl1.zip(sl2)
exp = SList()
assert res == exp
def test_zip_one_lt():
# pylint: disable=missing-docstring
sl1 = SList([2, 3])
sl2 = SList([2, 3, 4])
with pytest.raises(AssertionError):
sl1.zip(sl2)