code: def test_insert_field_before_index(self):
      # test insert before index
      ins_bfr = sample.insert_field_before_index("x", 11, "wug")
  
      self.assertRaises(
          IndexError, sample.insert_field_before_index, "x", 100, "wug"
      )
      self.assertRaises(
          ValueError, sample.insert_field_before_index, "x", -1, "wug"
      )
      self.assertRaises(
          AssertionError,
          sample.insert_field_before_index,
          "word",
          10,
          "wug",
      )
  
      self.assertEqual(
          [
              "Influential",
              "members",
              "of",
              "the",
              "House",
              "Ways",
              "and",
              "Means",
              "Committee",
              "introduced",
              "legislation",
              "wug",
              "that",
              "would",
              "restrict",
              "how",
              "the",
              "new",
              "savings-and-loan",
              "bailout",
              "agency",
              "can",
              "raise",
              "capital",
              ",",
              "creating",
              "another",
              "potential",
              "obstacle",
              "to",
              "the",
              "government",
              "'s",
              "sale",
              "of",
              "sick",
              "thrifts",
              ".",
          ],
          ins_bfr.get_value("x"),
      )
      self.assertEqual(
          [
              "JJ",
              "NNS",
              "IN",
              "DT",
              "NNP",
              "NNP",
              "CC",
              "NNP",
              "NNP",
              "VBD",
              "NN",
              "UNK",
              "WDT",
              "MD",
              "VB",
              "WRB",
              "DT",
              "JJ",
              "JJ",
              "NN",
              "NN",
              "MD",
              "VB",
              "NN",
              ",",
              "VBG",
              "DT",
              "JJ",
              "NN",
              "TO",
              "DT",
              "NN",
              "POS",
              "NN",
              "IN",
              "JJ",
              "NNS",
              ".",
          ],
          ins_bfr.get_value("postag"),
      )
      self.assertEqual(
          [
              "2",
              "10",
              "2",
              "6",
              "6",
              "3",
              "6",
              "9",
              "6",
              "0",
              "10",
              "0",
              "15",
              "15",
              "11",
              "23",
              "21",
              "21",
              "21",
              "21",
              "23",
              "23",
              "15",
              "23",
              "15",
              "15",
              "29",
              "29",
              "26",
              "29",
              "32",
              "34",
              "32",
              "30",
              "34",
              "37",
              "35",
              "10",
          ],
          ins_bfr.get_value("head"),
      )
      self.assertEqual(
          [
              "amod",
              "nsubj",
              "prep",
              "det",
              "nn",
              "pobj",
              "cc",
              "nn",
              "conj",
              "root",
              "dobj",
              "unk",
              "nsubj",
              "aux",
              "rcmod",
              "advmod",
              "det",
              "amod",
              "amod",
              "nn",
              "nsubj",
              "aux",
              "ccomp",
              "dobj",
              "punct",
              "xcomp",
              "det",
              "amod",
              "dobj",
              "prep",
              "det",
              "poss",
              "possessive",
              "pobj",
              "prep",
              "amod",
              "pobj",
              "punct",
          ],
          ins_bfr.get_value("deprel"),
      )
  
file_path: textflint/test/input/component/sample/test_dp_sample.py
imports: import unittest
  from textflint.input.component.sample.dp_sample import *
label_desc: Use image node_id 6 for calling the TestDPSample obj's underlying member method code with example usage: obj.test_insert_field_before_index() without return types