def test_append():
ll = LinkedList()
ll.append(5)
ll.append(3)
ll.append(1)
assert repr(ll) == '(5, (3, (1, ())))'
def test_append():
ll = LinkedList()
ll.append(5)
ll.append(3)
ll.append(1)
assert repr(ll) == '{5, 3, 1, }'
def test_prepend():
ll = LinkedList()
ll.append(5)
ll.prepend(3)
ll.prepend(1)
assert repr(ll) == '{1, 3, 5, }'
def test_iter():
ll = LinkedList()
ll.dump(5, 4, 3, 2, 1)
ll2 = LinkedList()
for l in ll:
ll2.append(l)
assert ll == ll2