code: def test_setattr_columns_vs_construct_with_columns_datetimeindx(self):
      idx = date_range("20130101", periods=4, freq="QE-NOV")
      df = DataFrame(
          [[1, 1, 1, 5], [1, 1, 2, 5], [2, 1, 3, 5]],
          columns=["a", "a", "a", "a"],
      )
      df.columns = idx
      expected = DataFrame(
          [[1, 1, 1, 5], [1, 1, 2, 5], [2, 1, 3, 5]], columns=idx
      )
      tm.assert_frame_equal(df, expected)
  
imports: import numpy
  import pytest
  import pandas
  from pandas import DataFrame, Series, date_range
  import pandas._testing
label_desc: Use image node_id 2 for calling the TestDataFrameNonuniqueIndexes obj's underlying member method code with example usage: obj.test_setattr_columns_vs_construct_with_columns_datetimeindx() without return types