def test_none():
a = None
lst = print_list(a)
res = clone_list_nodes(a)
assert print_list(res) == lst
res = clone_list_nodes_with_dict(a)
assert print_list(res) == lst
def test_one():
a = ComplexNode(1)
connect_nodes(a, None, a)
lst = print_list(a)
res = clone_list_nodes(a)
assert print_list(res) == lst
res = clone_list_nodes_with_dict(a)
assert print_list(res) == lst
def test_normal():
a = ComplexNode(1)
b = ComplexNode(2)
c = ComplexNode(3)
d = ComplexNode(4)
e = ComplexNode(5)
connect_nodes(a, b, c)
connect_nodes(b, c, e)
connect_nodes(c, d, None)
connect_nodes(d, e, b)
lst = print_list(a)
res = clone_list_nodes(a)
assert print_list(res) == lst
res = clone_list_nodes_with_dict(a)
assert print_list(res) == lst