new_contents: from .url import (filename_to_uri, uri_to_filename)
  import unittest
  
  
  class WindowsTests(unittest.TestCase):
  
      @unittest.skipUnless(sys.platform.startswith("win"), "requires Windows")
  	def test_converts_path_to_uri(self):
  		self.assertEqual("file:///C:/dir%20ectory/file.txt", filename_to_uri("c:\\dir ectory\\file.txt"))
  
      @unittest.skipUnless(sys.platform.startswith("win"), "requires Windows")
  	def test_converts_uri_to_path(self):
  		self.assertEqual("C:\\dir ectory\\file.txt", uri_to_filename("file:///c:/dir ectory/file.txt"))
subject: Add test for url handling in Windows