      "class TestBstValidate(object):\n",
      "\n",
      "    @raises(Exception)\n",
      "    def test_bst_validate_empty(self):\n",
      "        validate_bst(None)\n",
      "\n",
      "    def test_bst_validate(self):\n",
      "        bst = BstValidate(Node(5))\n",
      "        bst.insert(8)\n",
      "        bst.insert(5)\n",
 
</s>
    "        bst = BstValidate(None)\n",
    "        bst.validate()\n",
      "class TestBstValidate(object):\n",
      "\n",
      "    @raises(Exception)\n",
      "    def test_bst_validate_empty(self):\n",
    "        bst = BstValidate(None)\n",
    "        bst.validate()\n",
      "\n",
      "    def test_bst_validate(self):\n",
      "        bst = BstValidate(Node(5))\n",
      "        bst.insert(8)\n",
      "        bst.insert(5)\n",
keep keep keep keep replace keep keep keep keep keep
 #273: Remove nose dependency for graphs_trees/ (#277)
graphs_trees/bst_validate/bst_validate_solution.ipynb