text: # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #      http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  """
  Tests for patching modules loaded after `setupPyfakefs()`.
  """
  import sys
  import unittest
  
  from pyfakefs import fake_filesystem_unittest
  from pyfakefs.extra_packages import pathlib
  
  
  class TestPyfakefsUnittestBase(fake_filesystem_unittest.TestCase):
      def setUp(self):
          """Set up the fake file system"""
          self.setUpPyfakefs()
  
  
  @unittest.skipIf((3, ) < sys.version_info < (3, 3),
                   'Does not work with Python 3 < 3.3, including Pypy3 2.4')
  class DynamicImportPatchTest(TestPyfakefsUnittestBase):
      def __init__(self, methodName='runTest'):
          super(DynamicImportPatchTest, self).__init__(methodName,
                                                       use_dynamic_patch=True)
  
      def test_os_patch(self):
          import os
  
          os.mkdir('test')
          self.assertTrue(self.fs.exists('test'))
          self.assertTrue(os.path.exists('test'))
  
      def test_os_import_as_patch(self):
          import os as _os
  
          _os.mkdir('test')
          self.assertTrue(self.fs.exists('test'))
          self.assertTrue(_os.path.exists('test'))
  
      def test_os_path_patch(self):
          import os.path
  
          os.mkdir('test')
          self.assertTrue(self.fs.exists('test'))
          self.assertTrue(os.path.exists('test'))
  
      @unittest.skipIf(sys.version_info < (3, 3), 'disk_usage new in Python 3.3')
      def test_shutil_patch(self):
          import shutil
  
          self.fs.set_disk_usage(100)
          self.assertEqual(100, shutil.disk_usage('/').total)
  
      @unittest.skipIf(not pathlib, 'only run if pathlib is available')
      def test_pathlib_patch(self):
          file_path = 'test.txt'
          path = pathlib.Path(file_path)
          with path.open('w') as f:
              f.write('test')
  
          self.assertTrue(self.fs.exists(file_path))
          file_object = self.fs.get_object(file_path)
          self.assertEqual('test', file_object.contents)
  
      @unittest.skipIf(not pathlib, 'only run if pathlib is available')
      def test_pathlib_path_patch(self):
          file_path = 'test.txt'
          path = pathlib.Path(file_path)
          with path.open('w') as f:
              f.write('test')
  
          self.assertTrue(self.fs.exists(file_path))
          file_object = self.fs.get_object(file_path)
          self.assertEqual('test', file_object.contents)
  
  
  if __name__ == "__main__":
      unittest.main()
  