old_contents: import asyncio
  import socket
  import unittest
  
  import aiohttp
  from aiohttp import web
  from aiohttp_security import remember, forget
  
  
  class TestNoAuth(unittest.TestCase):
  
      def setUp(self):
          self.loop = asyncio.new_event_loop()
          asyncio.set_event_loop(None)
          self.client = aiohttp.ClientSession(loop=self.loop)
  
      def tearDown(self):
          self.client.close()
          self.loop.run_until_complete(self.handler.finish_connections())
          self.srv.close()
          self.loop.run_until_complete(self.srv.wait_closed())
          self.loop.close()
  
      def find_unused_port(self):
          s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
          s.bind(('127.0.0.1', 0))
          port = s.getsockname()[1]
          s.close()
          return port
  
      @asyncio.coroutine
      def create_server(self):
          app = web.Application(loop=self.loop)
  
          port = self.find_unused_port()
          self.handler = app.make_handler(
              debug=False, keep_alive_on=False)
          srv = yield from self.loop.create_server(
              self.handler, '127.0.0.1', port)
          url = "http://127.0.0.1:{}/".format(port)
          self.srv = srv
          return app, srv, url
  
      def test_remember(self):
  
          @asyncio.coroutine
          def do_remember(request):
              response = web.Response()
              yield from remember(request, response, 'Andrew')
  
          @asyncio.coroutine
          def go():
              app, srv, url = yield from self.create_server()
              app.router.add_route('POST', '/', do_remember)
              resp = yield from self.client.post(url)
              self.assertEqual(500, resp.status)
              self.assertEqual(('Security subsystem is not initialized, '
                                'call aiohttp_security.setup(...) first'),
                               resp.reason)
              yield from resp.release()
  
          self.loop.run_until_complete(go())
  
      def test_forget(self):
  
          @asyncio.coroutine
          def do_forget(request):
              response = web.Response()
              yield from forget(request, response)
  
          @asyncio.coroutine
          def go():
              app, srv, url = yield from self.create_server()
              app.router.add_route('POST', '/', do_forget)
              resp = yield from self.client.post(url)
              self.assertEqual(500, resp.status)
              self.assertEqual(('Security subsystem is not initialized, '
                                'call aiohttp_security.setup(...) first'),
                               resp.reason)
              yield from resp.release()
  
          self.loop.run_until_complete(go())
  
new_contents: import asyncio
  import pytest
  
  from aiohttp import web
  from aiohttp_security import remember, forget
  
  
  @pytest.mark.run_loop
  def test_remember(create_app_and_client):
  
      @asyncio.coroutine
      def do_remember(request):
          response = web.Response()
          yield from remember(request, response, 'Andrew')
  
      app, client = yield from create_app_and_client()
      app.router.add_route('POST', '/', do_remember)
      resp = yield from client.post('/')
      assert 500 == resp.status
      assert (('Security subsystem is not initialized, '
               'call aiohttp_security.setup(...) first') ==
              resp.reason)
      yield from resp.release()
  
  
  @pytest.mark.run_loop
  def test_forget(create_app_and_client):
  
      @asyncio.coroutine
      def do_forget(request):
          response = web.Response()
          yield from forget(request, response)
  
      app, client = yield from create_app_and_client()
      app.router.add_route('POST', '/', do_forget)
      resp = yield from client.post('/')
      assert 500 == resp.status
      assert (('Security subsystem is not initialized, '
               'call aiohttp_security.setup(...) first') ==
              resp.reason)
      yield from resp.release()
  
subject: Convert test_no_identity into pytest style