def test_prepend_implementation(self):
ll = Linked_list()
assert ll.prepend(1) == 1
assert ll.prepend(2) == 2
assert ll.head.data == 2
assert ll.tail.data == 1
assert ll.size == 2
from linked_list import Linked_list link_list1 = Linked_list() link_list1.append(0) link_list1.append(1) link_list1.append(2) link_list1.append(3) link_list1.append(4) link_list1.append(5) item = link_list1[3] print(item) print(link_list1) link_list1.delete(3) print(link_list1) link_list1.delete(0) print(link_list1) link_list1.append(6) print(link_list1) link_list1.prepend(0) print(link_list1)