text: #!/usr/bin/env python
  ###############################################################################
  # $Id$
  #
  # Project:  GDAL/OGR Test Suite
  # Purpose:  Test gdal_sieve.py utility
  # Author:   Frank Warmerdam <warmerdam@pobox.com>
  #
  ###############################################################################
  # Copyright (c) 2008, Frank Warmerdam <warmerdam@pobox.com>
  # Copyright (c) 2010, Even Rouault <even dot rouault at mines-paris dot org>
  #
  # Permission is hereby granted, free of charge, to any person obtaining a
  # copy of this software and associated documentation files (the "Software"),
  # to deal in the Software without restriction, including without limitation
  # the rights to use, copy, modify, merge, publish, distribute, sublicense,
  # and/or sell copies of the Software, and to permit persons to whom the
  # Software is furnished to do so, subject to the following conditions:
  #
  # The above copyright notice and this permission notice shall be included
  # in all copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  # THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  # DEALINGS IN THE SOFTWARE.
  ###############################################################################
  
  import sys
  
  sys.path.append('../pymod')
  
  import gdaltest
  import test_py_scripts
  
  from osgeo import gdal
  
  ###############################################################################
  # Test a fairly default case.
  
  
  def test_gdal_sieve_1():
  
      script_path = test_py_scripts.get_py_script('gdal_sieve')
      if script_path is None:
          return 'skip'
  
      drv = gdal.GetDriverByName('GTiff')
      dst_ds = drv.Create('tmp/sieve_1.tif', 5, 7, 1, gdal.GDT_Byte)
      dst_ds = None
  
      test_py_scripts.run_py_script(script_path, 'gdal_sieve', '-nomask -st 2 -4 ../alg/data/sieve_src.grd tmp/sieve_1.tif')
  
      dst_ds = gdal.Open('tmp/sieve_1.tif')
      dst_band = dst_ds.GetRasterBand(1)
  
      cs_expected = 364
      cs = dst_band.Checksum()
  
      dst_band = None
      dst_ds = None
  
      if cs == cs_expected \
         or gdal.GetConfigOption('CPL_DEBUG', 'OFF') != 'ON':
          # Reload because of side effects of run_py_script()
          drv = gdal.GetDriverByName('GTiff')
          drv.Delete('tmp/sieve_1.tif')
  
      if cs != cs_expected:
          print('Got: ', cs)
          gdaltest.post_reason('got wrong checksum')
          return 'fail'
      return 'success'
  
  
  gdaltest_list = [
      test_gdal_sieve_1,
  ]
  
  if __name__ == '__main__':
  
      gdaltest.setup_run('test_gdal_sieve')
  
      gdaltest.run_tests(gdaltest_list)
  
      sys.exit(gdaltest.summarize())
  