code: def test_monotone_DTI_indexing_bug(self):
      # GH 19362
      # Testing accessing the first element in a monotonic descending
      # partial string indexing.
  
      df = DataFrame(list(range(5)))
      date_list = [
          "2018-01-02",
          "2017-02-10",
          "2016-03-10",
          "2015-03-15",
          "2014-03-16",
      ]
      date_index = DatetimeIndex(date_list)
      df["date"] = date_index
      expected = DataFrame({0: list(range(5)), "date": date_index})
      tm.assert_frame_equal(df, expected)
  
      # We get a slice because df.index's resolution is hourly and we
      #  are slicing with a daily-resolution string.  If both were daily,
      #  we would get a single item back
      dti = date_range("20170101 01:00:00", periods=3)
      df = DataFrame({"A": [1, 2, 3]}, index=dti[::-1])
  
      expected = DataFrame({"A": 1}, index=dti[-1:][::-1])
      result = df.loc["2017-01-03"]
      tm.assert_frame_equal(result, expected)
  
      result2 = df.iloc[::-1].loc["2017-01-03"]
      expected2 = expected.iloc[::-1]
      tm.assert_frame_equal(result2, expected2)
  
imports: from datetime import datetime
  import numpy
  import pytest
  from pandas import DataFrame, DatetimeIndex, Index, MultiIndex, Series, Timedelta, Timestamp, date_range
  import pandas._testing
label_desc: Use image node_id 5 for calling the TestSlicing obj's underlying member method code with example usage: obj.test_monotone_DTI_indexing_bug() without return types