import logging
import unittest

import six
if six.PY3:
    from unittest import mock
else:
    import mock

from engineio import async_eventlet


class TestServer(unittest.TestCase):
    def setUp(self):
        logging.getLogger('engineio').setLevel(logging.NOTSET)

    @mock.patch('engineio.async_eventlet._WebSocketWSGI.__call__',
                return_value='data')
    def test_wsgi_call(self, _WebSocketWSGI):
        _WebSocketWSGI.__call__ = lambda e, s: 'data'
        environ = {"eventlet.input": None}
        start_response = "bar"
        wsgi = async_eventlet.WebSocketWSGI(None)
        self.assertEqual(wsgi(environ, start_response), 'data')

import logging
import unittest

import six
if six.PY3:
    from unittest import mock
else:
    import mock

from engineio import async_eventlet


class TestServer(unittest.TestCase):
    def setUp(self):
        logging.getLogger('engineio').setLevel(logging.NOTSET)

    @mock.patch('engineio.async_eventlet._WebSocketWSGI.__call__',
                return_value='data')
    def test_wsgi_call(self, _WebSocketWSGI):
        _WebSocketWSGI.__call__ = lambda e,s: 'data'
        environ = {"eventlet.input": None}
        start_response = "bar"
        wsgi = async_eventlet.WebSocketWSGI(None)
        self.assertEqual(wsgi(environ, start_response), 'data')


--- 
+++ 
@@ -17,9 +17,8 @@
     @mock.patch('engineio.async_eventlet._WebSocketWSGI.__call__',
                 return_value='data')
     def test_wsgi_call(self, _WebSocketWSGI):
-        _WebSocketWSGI.__call__ = lambda e,s: 'data'
+        _WebSocketWSGI.__call__ = lambda e, s: 'data'
         environ = {"eventlet.input": None}
         start_response = "bar"
         wsgi = async_eventlet.WebSocketWSGI(None)
         self.assertEqual(wsgi(environ, start_response), 'data')
-
Update tests to correspond with flake8
