code: def test_loc_setitem_zerolen_list_length_must_match_columns(self):
      # list-like must conform
      df = DataFrame(columns=["A", "B"])
  
      msg = "cannot set a row with mismatched columns"
      with pytest.raises(ValueError, match=msg):
          df.loc[0] = [1, 2, 3]
  
      df = DataFrame(columns=["A", "B"])
      df.loc[3] = [6, 7]  # length matches len(df.columns) --> OK!
  
      exp = DataFrame(
          [[6, 7]], index=[3], columns=["A", "B"], dtype=np.int64
      )
      tm.assert_frame_equal(df, exp)
  
imports: import numpy
  import pytest
  import pandas
  from pandas import DataFrame, Index, Period, Series, Timestamp, date_range, period_range
  import pandas._testing
label_desc: Use image node_id 4 for calling the TestEmptyFrameSetitemExpansion obj's underlying member method code with example usage: obj.test_loc_setitem_zerolen_list_length_must_match_columns() without return types