code: def test_logical_ops_empty_frame(self):
      # GH#5808
      # empty frames, non-mixed dtype
      df = DataFrame(index=[1])
  
      result = df & df
      tm.assert_frame_equal(result, df)
  
      result = df | df
      tm.assert_frame_equal(result, df)
  
      df2 = DataFrame(index=[1, 2])
      result = df & df2
      tm.assert_frame_equal(result, df2)
  
      dfa = DataFrame(index=[1], columns=["A"])
  
      result = dfa & dfa
      expected = DataFrame(False, index=[1], columns=["A"])
      tm.assert_frame_equal(result, expected)
  
file_path: pandas/pandas/tests/frame/test_logical_ops.py
imports: import operator
  import re
  import numpy
  import pytest
  from pandas import CategoricalIndex, DataFrame, Interval, Series, isnull
  import pandas._testing
label_desc: Use image node_id 2 for calling the TestDataFrameLogicalOperators obj's underlying member method code with example usage: obj.test_logical_ops_empty_frame() without return types