def test12_insert(self):
n1 = Node(12)
n2 = Node(55)
n1.next = n2 # 12 -> 55
n2.prev = n1
s_list = LinkedList2()
s_list.add_in_tail(n1)
s_list.add_in_tail(n2)
s_list.add_in_tail(Node(128))
s_list.add_in_tail(Node(333))
s_list.print_all_nodes()
s_list.insert(Node(333),Node(66))
print('_________________________')
s_list.print_all_nodes()
print('head - ',s_list.head.value,' tail - ', s_list.tail.value)
def test2_del_false(self):
n1 = Node(12)
n2 = Node(55)
n1.next = n2 # 12 -> 55
n2.prev = n1
s_list = LinkedList2()
s_list.add_in_tail(n1)
s_list.add_in_tail(n2)
s_list.add_in_tail(Node(128))
s_list.add_in_tail(Node(333))
s_list.print_all_nodes()
print('до удаления',s_list.head.value, s_list.tail.value, s_list.len())
s_list.delete(333)
print('после удаления',s_list.head.value, s_list.tail.value, s_list.len())
print('___________')
s_list.print_all_nodes()