def test_lengthen_list_when_length_is_smaller(self):
li = [1, 2, 3, 4]
length = 2
result = lengthen_list(length, li)
assert len(result) == 4
def test_lengthen_list_when_length_is_bigger(self):
li = [1, 2, 3, 4]
length = 10
result = lengthen_list(length, li)
assert len(result) == 10