code: def test_short_single_line(all_parsers):
      # GH 47566
      parser = all_parsers
      columns = ["a", "b", "c"]
      data = "1,2"
      result = parser.read_csv(
          StringIO(data), header=None, names=columns
      )
      expected = DataFrame({"a": [1], "b": [2], "c": [np.nan]})
      tm.assert_frame_equal(result, expected)
  
imports: from datetime import datetime
  from inspect import signature
  from io import StringIO
  import os
  from pathlib import Path
  import sys
  import numpy
  import pytest
  from pandas.errors import EmptyDataError, ParserError, ParserWarning
  from pandas import DataFrame, Index, Timestamp, compat
  import pandas._testing
  from pandas.io.parsers import TextFileReader
  from pandas.io.parsers.c_parser_wrapper import CParserWrapper
label_desc: Use image node_id 43 for calling a global function with example usage: test_short_single_line(all_parsers) without return types