      "        node10.right = node9\n",
      "        root = node10\n",
      "        node0 = Node(0)\n",
      "        binary_tree = BinaryTree()\n",
      "        assert_equal(binary_tree.lca(root, node0, node5), None)\n",
      "        assert_equal(binary_tree.lca(root, node5, node0), None)\n",
      "        assert_equal(binary_tree.lca(root, node1, node8), node3)\n",
      "        assert_equal(binary_tree.lca(root, node12, node8), node5)\n",
      "        assert_equal(binary_tree.lca(root, node12, node40), node10)\n",
      "        assert_equal(binary_tree.lca(root, node9, node20), node9)\n",
      "        assert_equal(binary_tree.lca(root, node3, node5), node5)\n",
      "        print('Success: test_lca')\n",
      "\n",
      "\n",
      "def main():\n",
      "    test = TestLowestCommonAncestor()\n",
 
</s> remove     "        assert_equal(binary_tree.lca(root, node0, node5), None)\n",
    "        assert_equal(binary_tree.lca(root, node5, node0), None)\n",
    "        assert_equal(binary_tree.lca(root, node1, node8), node3)\n",
    "        assert_equal(binary_tree.lca(root, node12, node8), node5)\n",
    "        assert_equal(binary_tree.lca(root, node12, node40), node10)\n",
    "        assert_equal(binary_tree.lca(root, node9, node20), node9)\n",
    "        assert_equal(binary_tree.lca(root, node3, node5), node5)\n",
 </s> add     "        self.assertEqual(binary_tree.lca(root, node0, node5), None)\n",
    "        self.assertEqual(binary_tree.lca(root, node5, node0), None)\n",
    "        self.assertEqual(binary_tree.lca(root, node1, node8), node3)\n",
    "        self.assertEqual(binary_tree.lca(root, node12, node8), node5)\n",
    "        self.assertEqual(binary_tree.lca(root, node12, node40), node10)\n",
    "        self.assertEqual(binary_tree.lca(root, node9, node20), node9)\n",
    "        self.assertEqual(binary_tree.lca(root, node3, node5), node5)\n", </s> remove         assert_equal(binary_tree.lca(root, node0, node5), None)
        assert_equal(binary_tree.lca(root, node5, node0), None)
        assert_equal(binary_tree.lca(root, node1, node8), node3)
        assert_equal(binary_tree.lca(root, node12, node8), node5)
        assert_equal(binary_tree.lca(root, node12, node40), node10)
        assert_equal(binary_tree.lca(root, node9, node20), node9)
        assert_equal(binary_tree.lca(root, node3, node5), node5)
 </s> add         self.assertEqual(binary_tree.lca(root, node0, node5), None)
        self.assertEqual(binary_tree.lca(root, node5, node0), None)
        self.assertEqual(binary_tree.lca(root, node1, node8), node3)
        self.assertEqual(binary_tree.lca(root, node12, node8), node5)
        self.assertEqual(binary_tree.lca(root, node12, node40), node10)
        self.assertEqual(binary_tree.lca(root, node9, node20), node9)
        self.assertEqual(binary_tree.lca(root, node3, node5), node5) </s> remove     "        assert_equal(result, root)\n",
    "        assert_equal(result.left, node7)\n",
    "        assert_equal(result.right, node2)\n",
    "        assert_equal(result.left.left, node9)\n",
    "        assert_equal(result.left.right, node6)\n",
    "        assert_equal(result.right.left, node3)\n",
    "        assert_equal(result.right.right, node1)\n",
 </s> add     "        self.assertEqual(result, root)\n",
    "        self.assertEqual(result.left, node7)\n",
    "        self.assertEqual(result.right, node2)\n",
    "        self.assertEqual(result.left.left, node9)\n",
    "        self.assertEqual(result.left.right, node6)\n",
    "        self.assertEqual(result.right.left, node3)\n",
    "        self.assertEqual(result.right.right, node1)\n", </s> remove     "        assert_equal(result, root)\n",
    "        assert_equal(result.left, node7)\n",
    "        assert_equal(result.right, node2)\n",
    "        assert_equal(result.left.left, node9)\n",
    "        assert_equal(result.left.right, node6)\n",
    "        assert_equal(result.right.left, node3)\n",
    "        assert_equal(result.right.right, node1)\n",
 </s> add     "        self.assertEqual(result, root)\n",
    "        self.assertEqual(result.left, node7)\n",
    "        self.assertEqual(result.right, node2)\n",
    "        self.assertEqual(result.left.left, node9)\n",
    "        self.assertEqual(result.left.right, node6)\n",
    "        self.assertEqual(result.right.left, node3)\n",
    "        self.assertEqual(result.right.right, node1)\n", </s> remove     "        assert_true(processed_nodes is None)\n",
 </s> add     "        self.assertTrue(processed_nodes is None)\n",
    "        self.assertEqual(binary_tree.lca(root, node0, node5), None)\n",
    "        self.assertEqual(binary_tree.lca(root, node5, node0), None)\n",
    "        self.assertEqual(binary_tree.lca(root, node1, node8), node3)\n",
    "        self.assertEqual(binary_tree.lca(root, node12, node8), node5)\n",
    "        self.assertEqual(binary_tree.lca(root, node12, node40), node10)\n",
    "        self.assertEqual(binary_tree.lca(root, node9, node20), node9)\n",
    "        self.assertEqual(binary_tree.lca(root, node3, node5), node5)\n",
      "        node10.right = node9\n",
      "        root = node10\n",
      "        node0 = Node(0)\n",
      "        binary_tree = BinaryTree()\n",
    "        self.assertEqual(binary_tree.lca(root, node0, node5), None)\n",
    "        self.assertEqual(binary_tree.lca(root, node5, node0), None)\n",
    "        self.assertEqual(binary_tree.lca(root, node1, node8), node3)\n",
    "        self.assertEqual(binary_tree.lca(root, node12, node8), node5)\n",
    "        self.assertEqual(binary_tree.lca(root, node12, node40), node10)\n",
    "        self.assertEqual(binary_tree.lca(root, node9, node20), node9)\n",
    "        self.assertEqual(binary_tree.lca(root, node3, node5), node5)\n",
    "        self.assertEqual(binary_tree.lca(root, node0, node5), None)\n",
    "        self.assertEqual(binary_tree.lca(root, node5, node0), None)\n",
    "        self.assertEqual(binary_tree.lca(root, node1, node8), node3)\n",
    "        self.assertEqual(binary_tree.lca(root, node12, node8), node5)\n",
    "        self.assertEqual(binary_tree.lca(root, node12, node40), node10)\n",
    "        self.assertEqual(binary_tree.lca(root, node9, node20), node9)\n",
    "        self.assertEqual(binary_tree.lca(root, node3, node5), node5)\n",
    "        self.assertEqual(binary_tree.lca(root, node0, node5), None)\n",
    "        self.assertEqual(binary_tree.lca(root, node5, node0), None)\n",
    "        self.assertEqual(binary_tree.lca(root, node1, node8), node3)\n",
    "        self.assertEqual(binary_tree.lca(root, node12, node8), node5)\n",
    "        self.assertEqual(binary_tree.lca(root, node12, node40), node10)\n",
    "        self.assertEqual(binary_tree.lca(root, node9, node20), node9)\n",
    "        self.assertEqual(binary_tree.lca(root, node3, node5), node5)\n",
    "        self.assertEqual(binary_tree.lca(root, node0, node5), None)\n",
    "        self.assertEqual(binary_tree.lca(root, node5, node0), None)\n",
    "        self.assertEqual(binary_tree.lca(root, node1, node8), node3)\n",
    "        self.assertEqual(binary_tree.lca(root, node12, node8), node5)\n",
    "        self.assertEqual(binary_tree.lca(root, node12, node40), node10)\n",
    "        self.assertEqual(binary_tree.lca(root, node9, node20), node9)\n",
    "        self.assertEqual(binary_tree.lca(root, node3, node5), node5)\n",
    "        self.assertEqual(binary_tree.lca(root, node0, node5), None)\n",
    "        self.assertEqual(binary_tree.lca(root, node5, node0), None)\n",
    "        self.assertEqual(binary_tree.lca(root, node1, node8), node3)\n",
    "        self.assertEqual(binary_tree.lca(root, node12, node8), node5)\n",
    "        self.assertEqual(binary_tree.lca(root, node12, node40), node10)\n",
    "        self.assertEqual(binary_tree.lca(root, node9, node20), node9)\n",
    "        self.assertEqual(binary_tree.lca(root, node3, node5), node5)\n",
    "        self.assertEqual(binary_tree.lca(root, node0, node5), None)\n",
    "        self.assertEqual(binary_tree.lca(root, node5, node0), None)\n",
    "        self.assertEqual(binary_tree.lca(root, node1, node8), node3)\n",
    "        self.assertEqual(binary_tree.lca(root, node12, node8), node5)\n",
    "        self.assertEqual(binary_tree.lca(root, node12, node40), node10)\n",
    "        self.assertEqual(binary_tree.lca(root, node9, node20), node9)\n",
    "        self.assertEqual(binary_tree.lca(root, node3, node5), node5)\n",
    "        self.assertEqual(binary_tree.lca(root, node0, node5), None)\n",
    "        self.assertEqual(binary_tree.lca(root, node5, node0), None)\n",
    "        self.assertEqual(binary_tree.lca(root, node1, node8), node3)\n",
    "        self.assertEqual(binary_tree.lca(root, node12, node8), node5)\n",
    "        self.assertEqual(binary_tree.lca(root, node12, node40), node10)\n",
    "        self.assertEqual(binary_tree.lca(root, node9, node20), node9)\n",
    "        self.assertEqual(binary_tree.lca(root, node3, node5), node5)\n",
      "        print('Success: test_lca')\n",
      "\n",
      "\n",
      "def main():\n",
      "    test = TestLowestCommonAncestor()\n",
keep keep keep keep replace replace replace replace replace replace replace keep keep keep keep keep
 #273: Remove nose dependency for graphs_trees/ (#277) 
graphs_trees/tree_lca/tree_lca_challenge.ipynb