code: def test_rebuild_on_update_inplace(self):
      gdf = self.df.copy()
      old_sindex = gdf.sindex
      # sorting in place
      gdf.sort_values("A", ascending=False, inplace=True)
      # spatial index should be invalidated
      assert not gdf.has_sindex
      new_sindex = gdf.sindex
      # and should be different
      assert new_sindex is not old_sindex
  
      # sorting should still have happened though
      assert gdf.index.tolist() == [4, 3, 2, 1, 0]
  
imports: from math import sqrt
  import numpy
  import pandas
  import pytest
  import shapely
  from numpy.testing import assert_array_equal
  from shapely.geometry import GeometryCollection, LineString, MultiPolygon, Point, Polygon, box
  import geopandas
  from geopandas import GeoDataFrame, GeoSeries, read_file
  from geopandas import _compat
label_desc: Use image node_id 8 for calling the TestFrameSindex obj's underlying member method code with example usage: obj.test_rebuild_on_update_inplace() without return types