def test_many_items_first(self):
mylist = LinkedList()
mylist.add(1)
mylist.add(2)
mylist.add(3)
mylist.reverse()
mylist.reverse()
assert mylist.pop(0) == 3
assert mylist.size() == 2
def test_reverse(self):
mylist = LinkedList()
mylist.add(1)
mylist.add(2)
mylist.add(3)
assert mylist.toList() == [3, 2, 1]
mylist.reverse()
assert mylist.toList() == [1, 2, 3]
mylist.reverse()
assert mylist.toList() == [3, 2, 1]
def test_insert_middle_full_list(self):
mylist = LinkedList()
mylist.add(1)
mylist.add(2)
mylist.add(3)
mylist.add(4)
mylist.insert(2, 17)
mylist.reverse()
mylist.reverse()
assert mylist.toList() == [4, 3, 17, 2, 1]
assert mylist.size() == 5
def test_reverse_empty(self):
mylist = LinkedList()
mylist.reverse()
assert mylist.toList() == []