     },
     "outputs": [],
     "source": [
      "# %load test_hash_map.py\n",
      "from nose.tools import assert_equal, assert_raises\n",
      "\n",
      "\n",
      "class TestHashMap(object):\n",
      "\n",
      "    # TODO: It would be better if we had unit tests for each\n",
 
</s> remove     "from nose.tools import assert_equal, assert_raises\n",
 </s> add     "import unittest\n", </s> remove     "class TestHashMap(object):\n",
 </s> add     "class TestHashMap(unittest.TestCase):\n", </s> remove from nose.tools import assert_equal, assert_raises
 </s> add import unittest </s> remove     "class TestHashMap(object):\n",
 </s> add     "class TestHashMap(unittest.TestCase):\n", </s> remove class TestHashMap(object):
 </s> add class TestHashMap(unittest.TestCase):
    "import unittest\n",
     },
     "outputs": [],
     "source": [
      "# %load test_hash_map.py\n",
    "import unittest\n",
      "\n",
      "\n",
      "class TestHashMap(object):\n",
      "\n",
      "    # TODO: It would be better if we had unit tests for each\n",
keep keep keep keep replace keep keep keep keep keep
 #273: Remove nose dependency for arrays_strings/ (#274) 
arrays_strings/hash_map/hash_map_challenge.ipynb