def test_many_items_last(self):
mylist = LinkedList()
mylist.add(1)
mylist.add(2)
mylist.add(3)
assert mylist.pop(-1) == 1
assert mylist.size() == 2
def test_many_items_middle(self):
mylist = LinkedList()
mylist.add(1)
mylist.add(2)
mylist.add(3)
assert mylist.pop(-2) == 2
assert mylist.size() == 2
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_one_item_last(self):
mylist = LinkedList()
mylist.add(2)
assert mylist.pop(-1) == 2
assert mylist.isEmpty()
def test_index_out_of_range_low(self):
with pytest.raises(IndexError):
mylist = LinkedList()
mylist.add(2)
mylist.pop(-100)
def test_non_integer_pos(self):
with pytest.raises(TypeError):
mylist = LinkedList()
mylist.add(3)
mylist.pop(.4)
def test_empty_list(self):
with pytest.raises(IndexError):
mylist = LinkedList()
mylist.pop()