old_contents: try:
      from urllib.parse import urlencode
  except ImportError:
      from urllib import urlencode
  
  import tornado.testing
  import tornado.options
  
  import celery
  
  from flower.app import Flower
  from flower.urls import handlers
  from flower.events import Events
  from flower.urls import settings
  from flower import command  # side effect - define options
  
  
  class AsyncHTTPTestCase(tornado.testing.AsyncHTTPTestCase):
      def get_app(self):
          capp = celery.Celery()
          events = Events(capp)
          app = Flower(capp=capp, events=events,
                       options=tornado.options.options,
                       handlers=handlers, **settings)
          app.delay = lambda method, *args, **kwargs: method(*args, **kwargs)
          return app
  
      def get(self, url, **kwargs):
          return self.fetch(url, **kwargs)
  
      def post(self, url, **kwargs):
          if 'body' in kwargs and isinstance(kwargs['body'], dict):
              kwargs['body'] = urlencode(kwargs['body'])
          return self.fetch(url, method='POST', **kwargs)
  
new_contents: try:
      from urllib.parse import urlencode
  except ImportError:
      from urllib import urlencode
  
  import tornado.testing
  from tornado.options import options
  
  import celery
  import mock
  
  from flower.app import Flower
  from flower.urls import handlers
  from flower.events import Events
  from flower.urls import settings
  from flower import command  # side effect - define options
  
  
  class AsyncHTTPTestCase(tornado.testing.AsyncHTTPTestCase):
      def get_app(self):
          capp = celery.Celery()
          events = Events(capp)
          app = Flower(capp=capp, events=events,
                       options=options, handlers=handlers, **settings)
          app.delay = lambda method, *args, **kwargs: method(*args, **kwargs)
          return app
  
      def get(self, url, **kwargs):
          return self.fetch(url, **kwargs)
  
      def post(self, url, **kwargs):
          if 'body' in kwargs and isinstance(kwargs['body'], dict):
              kwargs['body'] = urlencode(kwargs['body'])
          return self.fetch(url, method='POST', **kwargs)
  
      def mock_option(self, name, value):
          return mock.patch.object(options.mockable(), name, value)
  
subject: Add an util funcion for mocking options