      "        assert_equal(linked_list.get_all_data(), [5])\n",
      "\n",
      "        print('Test: General case')\n",
      "        # Partition = 10\n",
      "        # Input: 4, 3, 7, 8, 10, 1, 10, 12\n",
      "        # Output: 4, 3, 7, 8, 1, 10, 10, 12\n",
      "        linked_list = MyLinkedList(Node(12))\n",
      "        linked_list.insert_to_front(10)\n",
      "        linked_list.insert_to_front(1)\n",
      "        linked_list.insert_to_front(10)\n",
      "        linked_list.insert_to_front(8)\n",
 
</s> remove     "        # Input: 4, 3, 7, 8, 10, 1, 10, 12\n",
    "        # Output: 4, 3, 7, 8, 1, 10, 10, 12\n",
 </s> add     "        # Input: 4, 3, 13, 8, 10, 1, 14, 10, 12\n",
    "        # Output: 4, 3, 8, 1, 10, 10, 13, 14, 12\n", </s> remove     "    * Input:  4, 3, 7, 8, 10, 1, 10, 12\n",
    "    * Output: 4, 3, 7, 8, 1, 10, 10, 12"
 </s> add     "    * Input: 4, 3, 13, 8, 10, 1, 10, 12\n",
    "    * Output: 4, 3, 8, 1, 10, 10, 13, 12" </s> remove         # Input: 4, 3, 7, 8, 10, 1, 10, 12
        # Output: 4, 3, 7, 8, 1, 10, 10, 12
 </s> add         # Input: 4, 3, 13, 8, 10, 1, 14, 10, 12
        # Output: 4, 3, 8, 1, 10, 10, 13, 14, 12 </s> remove     "                     [4, 3, 7, 8, 1, 10, 10, 12])\n",
 </s> add     "                     [4, 3, 8, 1, 10, 10, 13, 14, 12])\n",
    "        # Input: 4, 3, 13, 8, 10, 1, 14, 10, 12\n",
    "        # Output: 4, 3, 8, 1, 10, 10, 13, 14, 12\n",
      "        assert_equal(linked_list.get_all_data(), [5])\n",
      "\n",
      "        print('Test: General case')\n",
      "        # Partition = 10\n",
    "        # Input: 4, 3, 13, 8, 10, 1, 14, 10, 12\n",
    "        # Output: 4, 3, 8, 1, 10, 10, 13, 14, 12\n",
    "        # Input: 4, 3, 13, 8, 10, 1, 14, 10, 12\n",
    "        # Output: 4, 3, 8, 1, 10, 10, 13, 14, 12\n",
      "        linked_list = MyLinkedList(Node(12))\n",
      "        linked_list.insert_to_front(10)\n",
      "        linked_list.insert_to_front(1)\n",
      "        linked_list.insert_to_front(10)\n",
      "        linked_list.insert_to_front(8)\n",
keep keep keep keep replace replace keep keep keep keep keep
 Fixed #21: Partitioning linked list problem: Does not work if item greater than partition value is to the left. 
linked_lists/partition/partition_challenge.ipynb