def test_slinked_list():
print('test list with multiple items')
n1 = Node(1)
n2 = Node(2)
n3 = Node(3)
n4 = Node(4)
n5 = Node(5)
n6 = Node(6)
n7 = Node(7)
n8 = Node(8)
n9 = Node(9)
sl = LinkedList()
sl.add(n1)
sl.add(n2)
sl.add(n3)
sl.add(n4)
sl.add(n5)
sl.add(n6)
sl.add(n7)
sl.add(n8)
sl.add(n9)
print(sl.traverse())
reverse_rec(sl)
print(sl.traverse())
reverse_rec(sl)
print(sl.traverse())
reverse_loop(sl)
print(sl.traverse())
reverse_loop(sl)
print(sl.traverse())
def test_slinked_list_single():
print('test a single item in list')
n1 = Node(1)
sl = LinkedList()
sl.add(n1)
print(sl.traverse())
reverse_rec(sl)
print(sl.traverse())
reverse_loop(sl)
print(sl.traverse())
