class Node def init(self, value, next=None): self.value = value self.next = next
class LinkedList: def init(self, head=None):
def travers(self): current = self.head while current is not None: print(current.value) current = current.next
if name == ‘main’: node1 = Node(1) node2 = Node(2, node1)
in test_ll.py import pytest from ll import Node
def test_node_1(): actual = Node(1) expected = 1 assert actual == expected
def nest_node_1(): actual = Node(1) expected = 1 assert actual.value = expected
def test_node_next(): node1 = Node(1) node2 = Node(2, node1) actual = node2._next expected = node1 assert actual = expected