code: def test_long_strings(setup_path):
      # GH6166
      data = ["a" * 50] * 10
      df = DataFrame({"a": data}, index=data)
  
      with ensure_clean_store(setup_path) as store:
          store.append("df", df, data_columns=["a"])
  
          result = store.select("df")
          tm.assert_frame_equal(df, result)
  
imports: import datetime
  import re
  import numpy
  import pytest
  from pandas._libs.tslibs import Timestamp
  from pandas.compat import is_platform_windows
  import pandas
  from pandas import DataFrame, DatetimeIndex, Index, Series, _testing, bdate_range, date_range, read_hdf
  from pandas.tests.io.pytables.common import _maybe_remove, ensure_clean_store
  from pandas.util import _test_decorators
label_desc: Use image node_id 2 for calling a global function with example usage: test_long_strings(setup_path) without return types