text: #!/usr/bin/env python
  """Algorithm serialization test."""
  import tempfile
  import os
  import cv2 as cv
  from tests_common import NewOpenCVTests
  
  
  class algorithm_rw_test(NewOpenCVTests):
      def test_algorithm_rw(self):
          fd, fname = tempfile.mkstemp(prefix="opencv_python_algorithm_", suffix=".yml")
          os.close(fd)
  
          # some arbitrary non-default parameters
          gold = cv.AKAZE_create(descriptor_size=1, descriptor_channels=2, nOctaves=3, threshold=4.0)
          gold.write(cv.FileStorage(fname, cv.FILE_STORAGE_WRITE), "AKAZE")
  
          fs = cv.FileStorage(fname, cv.FILE_STORAGE_READ)
          algorithm = cv.AKAZE_create()
          algorithm.read(fs.getNode("AKAZE"))
  
          self.assertEqual(algorithm.getDescriptorSize(), 1)
          self.assertEqual(algorithm.getDescriptorChannels(), 2)
          self.assertEqual(algorithm.getNOctaves(), 3)
          self.assertEqual(algorithm.getThreshold(), 4.0)
  
          os.remove(fname)
  