def sum_two_list(node1, node2, carry):
if (node1 == None) and (node2 == None) and (carry == 0):
return None
result = Node()
value = carry
if node1 != None:
value += node1.data
if node2 != None:
value += node2.data
result.data = value % 10
carry = value // 10
if (node1 != None) or (node2 != None):
node = sum_two_list(None if node1 == None else node1.next,
None if node2 == None else node2.next, carry)
result.next = node
return result
def test_node_cant_reset_data():
new_node = Node(4)
with pytest.raises(AttributeError):
new_node.data = 6
def testData(self):
node = Node(data="data", next=None)
self.assertEqual(node.data, "data")
node.data = "new_data"
self.assertEqual(node.data, "new_data")
def testData(self):
node = Node(data="data",next=None)
self.assertEqual(node.data,"data")
node.data = "new_data"
self.assertEqual(node.data,"new_data")