      "class TestInsertionSort(object):\n",
      "\n",
      "    def test_insertion_sort(self):\n",
      "        print('None input')\n",
      "        data = None\n",
      "        insertion_sort(data)\n",
      "        assert_equal(data, None)\n",
      "\n",
      "        print('Empty input')\n",
      "        data = []\n",
      "        insertion_sort(data)\n",
      "        assert_equal(data, [])\n",
 
</s>
    "        assert_raises(TypeError, insertion_sort.sort, None)\n",
      "class TestInsertionSort(object):\n",
      "\n",
      "    def test_insertion_sort(self):\n",
      "        print('None input')\n",
    "        assert_raises(TypeError, insertion_sort.sort, None)\n",
    "        assert_raises(TypeError, insertion_sort.sort, None)\n",
    "        assert_raises(TypeError, insertion_sort.sort, None)\n",
      "\n",
      "        print('Empty input')\n",
      "        data = []\n",
      "        insertion_sort(data)\n",
      "        assert_equal(data, [])\n",
keep keep keep keep replace replace replace keep keep keep keep keep
 Update insertion sort challenge (#129)

Update constraints, test cases, code, and tests.
sorting_searching/insertion_sort/insertion_sort_solution.ipynb