     },
     "outputs": [],
     "source": [
      "# %load test_bfs.py\n",
      "from __future__ import print_function\n",
      "from nose.tools import assert_equal\n",
      "\n",
      "\n",
      "class TestBfs(object):\n",
      "\n",
 
</s> remove     "from __future__ import print_function\n",
 </s> add  </s> remove from __future__ import print_function
 </s> add  </s> remove     "%run ../utils/captured_output.py"
 </s> add     "%run ../utils/results.py" </s> remove     "%run ../utils/captured_output.py"
 </s> add     "%run ../utils/results.py" </s> remove     "    # TODO: Implement me"
 </s> add     "    # TODO: Implement me\n",
    "    pass"
     },
     "outputs": [],
     "source": [
      "# %load test_bfs.py\n",

      "from nose.tools import assert_equal\n",
      "\n",
      "\n",
      "class TestBfs(object):\n",
      "\n",
keep keep keep keep replace keep keep keep keep keep
 Reworked tree bfs unit tests. 
graphs_trees/tree_bfs/bfs_challenge.ipynb