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3rdparty/opencv-4.5.4/modules/python/test/test_fs_cache_dir.py 1.27 KB
f4334277   Hu Chunming   提交3rdparty
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  # Python 2/3 compatibility
  from __future__ import print_function
  
  import numpy as np
  import cv2 as cv
  import os
  import datetime
  
  from tests_common import NewOpenCVTests
  
  class get_cache_dir_test(NewOpenCVTests):
      def test_get_cache_dir(self):
          #New binding
          path = cv.utils.fs.getCacheDirectoryForDownloads()
          self.assertTrue(os.path.exists(path))
          self.assertTrue(os.path.isdir(path))
  
      def get_cache_dir_imread_interop(self, ext):
          path = cv.utils.fs.getCacheDirectoryForDownloads()
          gold_image = np.ones((16, 16, 3), np.uint8)
          read_from_file = np.zeros((16, 16, 3), np.uint8)
          test_file_name = os.path.join(path, "test." + ext)
          try:
              cv.imwrite(test_file_name, gold_image)
              read_from_file = cv.imread(test_file_name)
          finally:
              os.remove(test_file_name)
  
          self.assertEqual(cv.norm(gold_image, read_from_file), 0)
  
      def test_get_cache_dir_imread_interop_png(self):
          self.get_cache_dir_imread_interop("png")
  
      def test_get_cache_dir_imread_interop_jpeg(self):
          self.get_cache_dir_imread_interop("jpg")
  
      def test_get_cache_dir_imread_interop_tiff(self):
          self.get_cache_dir_imread_interop("tif")
  
  if __name__ == '__main__':
      NewOpenCVTests.bootstrap()