def test_remove():
ll = LinkedList()
ll.dump(5, 4, 3, 2, 1)
ll.remove(1)
ll.remove(5)
ll2 = LinkedList()
ll2.dump(4, 3, 2)
assert repr(ll) == repr(ll2)
def test_valueerror_remove():
ll = LinkedList()
ll.dump(5, 4, 3, 2, 1)
with pytest.raises(ValueError):
ll.remove(8)