      "        nodes[15] = bst.insert(15)\n",
      "        nodes[9] = bst.insert(9)\n",
      "\n",
      "        bst_successor = BstSuccessor()\n",
      "        assert_equal(bst_successor.get_next(nodes[4]), 5)\n",
      "        assert_equal(bst_successor.get_next(nodes[5]), 6)\n",
      "        assert_equal(bst_successor.get_next(nodes[8]), 9)\n",
      "        assert_equal(bst_successor.get_next(nodes[15]), None)\n",
      "\n",
      "        print('Success: test_bst_successor')\n",
      "\n",
      "\n",
      "def main():\n",
 
</s>
    "        self.assertEqual(bst_successor.get_next(nodes[4]), 5)\n",
    "        self.assertEqual(bst_successor.get_next(nodes[5]), 6)\n",
    "        self.assertEqual(bst_successor.get_next(nodes[8]), 9)\n",
    "        self.assertEqual(bst_successor.get_next(nodes[15]), None)\n",
      "        nodes[15] = bst.insert(15)\n",
      "        nodes[9] = bst.insert(9)\n",
      "\n",
      "        bst_successor = BstSuccessor()\n",
    "        self.assertEqual(bst_successor.get_next(nodes[4]), 5)\n",
    "        self.assertEqual(bst_successor.get_next(nodes[5]), 6)\n",
    "        self.assertEqual(bst_successor.get_next(nodes[8]), 9)\n",
    "        self.assertEqual(bst_successor.get_next(nodes[15]), None)\n",
    "        self.assertEqual(bst_successor.get_next(nodes[4]), 5)\n",
    "        self.assertEqual(bst_successor.get_next(nodes[5]), 6)\n",
    "        self.assertEqual(bst_successor.get_next(nodes[8]), 9)\n",
    "        self.assertEqual(bst_successor.get_next(nodes[15]), None)\n",
    "        self.assertEqual(bst_successor.get_next(nodes[4]), 5)\n",
    "        self.assertEqual(bst_successor.get_next(nodes[5]), 6)\n",
    "        self.assertEqual(bst_successor.get_next(nodes[8]), 9)\n",
    "        self.assertEqual(bst_successor.get_next(nodes[15]), None)\n",
    "        self.assertEqual(bst_successor.get_next(nodes[4]), 5)\n",
    "        self.assertEqual(bst_successor.get_next(nodes[5]), 6)\n",
    "        self.assertEqual(bst_successor.get_next(nodes[8]), 9)\n",
    "        self.assertEqual(bst_successor.get_next(nodes[15]), None)\n",
      "\n",
      "        print('Success: test_bst_successor')\n",
      "\n",
      "\n",
      "def main():\n",
keep keep keep keep replace replace replace replace keep keep keep keep keep
 #273: Remove nose dependency for graphs_trees/ (#277)
graphs_trees/bst_successor/bst_successor_solution.ipynb