diff --git a/tests/test_connector.py b/tests/test_connector.py
index e614b87..e58c6fd 100644
--- a/tests/test_connector.py
+++ b/tests/test_connector.py
@@ -3,9 +3,9 @@ import asyncio
 import aiosocks
 import aiohttp
 from unittest import mock
-from asyncio import coroutine
 from aiohttp.client_reqrep import ClientRequest
 from aiosocks.connector import SocksConnector
+from .helpers import fake_coroutine
 
 
 class TestSocksConnector(unittest.TestCase):
@@ -16,19 +16,11 @@ class TestSocksConnector(unittest.TestCase):
     def tearDown(self):
         self.loop.close()
 
-    def _fake_coroutine(self, return_value):
-        def coro(*args, **kwargs):
-            if isinstance(return_value, Exception):
-                raise return_value
-            return return_value
-
-        return mock.Mock(side_effect=coroutine(coro))
-
     @mock.patch('aiosocks.connector.create_connection')
     def test_connect_proxy_ip(self, cr_conn_mock):
         tr, proto = mock.Mock(name='transport'), mock.Mock(name='protocol')
         cr_conn_mock.side_effect = \
-            self._fake_coroutine((tr, proto)).side_effect
+            fake_coroutine((tr, proto)).side_effect
 
         loop_mock = mock.Mock()
 
@@ -36,7 +28,7 @@ class TestSocksConnector(unittest.TestCase):
         connector = SocksConnector(aiosocks.Socks5Addr('127.0.0.1'),
                                    None, loop=loop_mock)
 
-        loop_mock.getaddrinfo = self._fake_coroutine([mock.MagicMock()])
+        loop_mock.getaddrinfo = fake_coroutine([mock.MagicMock()])
 
         conn = self.loop.run_until_complete(connector.connect(req))
 
@@ -49,14 +41,14 @@ class TestSocksConnector(unittest.TestCase):
     def test_connect_proxy_domain(self, cr_conn_mock):
         tr, proto = mock.Mock(name='transport'), mock.Mock(name='protocol')
         cr_conn_mock.side_effect = \
-            self._fake_coroutine((tr, proto)).side_effect
+            fake_coroutine((tr, proto)).side_effect
         loop_mock = mock.Mock()
 
         req = ClientRequest('GET', 'http://python.org', loop=self.loop)
         connector = SocksConnector(aiosocks.Socks5Addr('proxy.example'),
                                    None, loop=loop_mock)
 
-        connector._resolve_host = self._fake_coroutine([mock.MagicMock()])
+        connector._resolve_host = fake_coroutine([mock.MagicMock()])
 
         conn = self.loop.run_until_complete(connector.connect(req))
 
@@ -70,13 +62,13 @@ class TestSocksConnector(unittest.TestCase):
     def test_connect_locale_resolve(self, cr_conn_mock):
         tr, proto = mock.Mock(name='transport'), mock.Mock(name='protocol')
         cr_conn_mock.side_effect = \
-            self._fake_coroutine((tr, proto)).side_effect
+            fake_coroutine((tr, proto)).side_effect
 
         req = ClientRequest('GET', 'http://python.org', loop=self.loop)
         connector = SocksConnector(aiosocks.Socks5Addr('proxy.example'),
                                    None, loop=self.loop, remote_resolve=False)
 
-        connector._resolve_host = self._fake_coroutine([mock.MagicMock()])
+        connector._resolve_host = fake_coroutine([mock.MagicMock()])
 
         conn = self.loop.run_until_complete(connector.connect(req))
 
@@ -89,13 +81,13 @@ class TestSocksConnector(unittest.TestCase):
     def test_proxy_connect_fail(self, cr_conn_mock):
         loop_mock = mock.Mock()
         cr_conn_mock.side_effect = \
-            self._fake_coroutine(aiosocks.SocksConnectionError()).side_effect
+            fake_coroutine(aiosocks.SocksConnectionError()).side_effect
 
         req = ClientRequest('GET', 'http://python.org', loop=self.loop)
         connector = SocksConnector(aiosocks.Socks5Addr('127.0.0.1'),
                                    None, loop=loop_mock)
 
-        loop_mock.getaddrinfo = self._fake_coroutine([mock.MagicMock()])
+        loop_mock.getaddrinfo = fake_coroutine([mock.MagicMock()])
 
         with self.assertRaises(aiohttp.ProxyConnectionError):
             self.loop.run_until_complete(connector.connect(req))
@@ -104,13 +96,13 @@ class TestSocksConnector(unittest.TestCase):
     def test_proxy_negotiate_fail(self, cr_conn_mock):
         loop_mock = mock.Mock()
         cr_conn_mock.side_effect = \
-            self._fake_coroutine(aiosocks.SocksError()).side_effect
+            fake_coroutine(aiosocks.SocksError()).side_effect
 
         req = ClientRequest('GET', 'http://python.org', loop=self.loop)
         connector = SocksConnector(aiosocks.Socks5Addr('127.0.0.1'),
                                    None, loop=loop_mock)
 
-        loop_mock.getaddrinfo = self._fake_coroutine([mock.MagicMock()])
+        loop_mock.getaddrinfo = fake_coroutine([mock.MagicMock()])
 
         with self.assertRaises(aiosocks.SocksError):
             self.loop.run_until_complete(connector.connect(req))