def test_insert_front_full_list(self):
mylist = LinkedList()
mylist.add(2)
mylist.add(3)
mylist.add(4)
mylist.insert(0, 1)
assert mylist.toList() == [1, 4, 3, 2]
assert mylist.size() == 4
def test_insert_back_full_list(self):
mylist = LinkedList()
mylist.add(2)
mylist.add(3)
mylist.add(4)
mylist.add(5)
mylist.insert(-3, 1)
assert mylist.toList() == [5, 1, 4, 3, 2]
assert mylist.size() == 5
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_index_high(self):
mylist = LinkedList()
mylist.add(2)
mylist.insert(100, 1)
assert mylist.toList() == [2, 1]
assert mylist.size() == 2
def test_index_low(self):
mylist = LinkedList()
mylist.add(2)
mylist.insert(-100, 1)
assert mylist.toList() == [1, 2]
assert mylist.size() == 2
def test_non_integer_index(self):
with pytest.raises(TypeError):
mylist = LinkedList()
mylist.insert(2.2, 1)
def test_missing_arg(self):
with pytest.raises(ValueError):
mylist = LinkedList()
mylist.insert(1)
def test_insert_back_one(self):
mylist = LinkedList()
mylist.add(2)
mylist.insert(-1, 1)
assert mylist.toList() == [1, 2]
assert mylist.size() == 2
def test_insert_back_empty(self):
mylist = LinkedList()
mylist.insert(-1, 1)
assert mylist.toList() == [1]
assert mylist.size() == 1
def test_insert_front_empty(self):
mylist = LinkedList()
mylist.insert(0, 1)
assert mylist.toList() == [1]
assert mylist.size() == 1
