text: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  #
  # Copyright 2011 Yesudeep Mangalapilly <yesudeep@gmail.com>
  # Copyright 2012 Google, Inc.
  #
  # 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.
  
  
  import os
  import unittest2
  
  try:
    import queue  # IGNORE:F0401
  except ImportError:
    import Queue as queue  # IGNORE:F0401
  
  from time import sleep
  from tests.shell import\
    mkdir,\
    mkdtemp,\
    touch,\
    rm,\
    mv
  
  from watchdog.events import DirModifiedEvent, DirCreatedEvent,\
    FileCreatedEvent,\
    FileMovedEvent, FileModifiedEvent, DirMovedEvent, FileDeletedEvent,\
    DirDeletedEvent
  
  from watchdog.observers.api import ObservedWatch
  from watchdog.utils import platform
  
  if platform.is_windows():
    from watchdog.observers.read_directory_changes import WindowsApiEmitter as Emitter
  
    temp_dir = mkdtemp()
  
    def p(*args):
      """
      Convenience function to join the temporary directory path
      with the provided arguments.
      """
      return os.path.join(temp_dir, *args)
  
    class TestWindowsApiEmitter(unittest2.TestCase):
      def setUp(self):
        self.event_queue = queue.Queue()
        self.watch = ObservedWatch(temp_dir, True)
        self.emitter = Emitter(self.event_queue, self.watch, timeout=0.2)
  
      def teardown(self):
        pass
  
      def test___init__(self):
        SLEEP_TIME = 1
        self.emitter.start()
        sleep(SLEEP_TIME)
        mkdir(p('fromdir'))
        sleep(SLEEP_TIME)
        mv(p('fromdir'), p('todir'))
        sleep(SLEEP_TIME)
        self.emitter.stop()
  
        # What we need here for the tests to pass is a collection type
        # that is:
        #   * unordered
        #   * non-unique
        # A multiset! Python's collections.Counter class seems appropriate.
        expected = set([
          DirCreatedEvent(p('fromdir')),
          DirMovedEvent(p('fromdir'),p('todir')),
          ])
        got = set()
  
        while True:
          try:
            event, _ = self.event_queue.get_nowait()
            got.add(event)
          except queue.Empty:
            break
  
        print got
        self.assertEqual(expected, got)
  