          self.assertEqual(len(self.node1) + 1, len(node3))
          self.assertEqual(str(node3), "(DEFAULT: ('a', 1), ('b', 2), ('c', 3))")
  
      def test_add_eq_child_mixed_connector(self):
          node = Node(["a", "b"], "OR")
          self.assertEqual(node.add("a", "AND"), "a")
          self.assertEqual(node, Node([Node(["a", "b"], "OR"), "a"], "AND"))
  
      def test_negate(self):
          # negated is False by default
          self.assertFalse(self.node1.negated)
          self.node1.negate()
 
</s> remove             if self.effective_connector == "OR" and votes < self.num_children:
 </s> add             if self.effective_connector == OR and votes < self.num_children: </s> remove             if self.effective_connector == "AND" or (
                self.effective_connector == "OR" and votes == self.num_children
 </s> add             if self.effective_connector == AND or (
                self.effective_connector == OR and votes == self.num_children </s> remove         self.assertEqual(kwargs, {"_connector": "XOR"})
 </s> add         self.assertEqual(kwargs, {"_connector": Q.XOR}) </s> remove         self.assertEqual(kwargs, {"_connector": "OR"})
 </s> add         self.assertEqual(kwargs, {"_connector": Q.OR}) </s> remove         w = WhereNode(children=[NothingNode()], connector="OR")
 </s> add         w = WhereNode(children=[NothingNode()], connector=OR)
        node = Node(["a", "b"], OR)
        self.assertEqual(node.add("a", AND), "a")
        self.assertEqual(node, Node([Node(["a", "b"], OR), "a"], AND))
          self.assertEqual(len(self.node1) + 1, len(node3))
          self.assertEqual(str(node3), "(DEFAULT: ('a', 1), ('b', 2), ('c', 3))")
  
      def test_add_eq_child_mixed_connector(self):
        node = Node(["a", "b"], OR)
        self.assertEqual(node.add("a", AND), "a")
        self.assertEqual(node, Node([Node(["a", "b"], OR), "a"], AND))
        node = Node(["a", "b"], OR)
        self.assertEqual(node.add("a", AND), "a")
        self.assertEqual(node, Node([Node(["a", "b"], OR), "a"], AND))
        node = Node(["a", "b"], OR)
        self.assertEqual(node.add("a", AND), "a")
        self.assertEqual(node, Node([Node(["a", "b"], OR), "a"], AND))
  
      def test_negate(self):
          # negated is False by default
          self.assertFalse(self.node1.negated)
          self.node1.negate()
keep keep keep keep replace replace replace keep keep keep keep keep
 Used AND, OR, XOR constants instead of hard-coded values. 
tests/utils_tests/test_tree.py