From f52541129c09d3ce6847e94643eda9e9c9712c93 Mon Sep 17 00:00:00 2001
From: "A. Jesse Jiryu Davis" <jesse@mongodb.com>
Date: Wed, 18 Feb 2015 08:57:09 -0500
Subject: [PATCH] Import unittest2 in locks_test if needed.

---
 tornado/test/locks_test.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tornado/test/locks_test.py b/tornado/test/locks_test.py
index 73f0f5911f..d1c9a61d8c 100644
--- a/tornado/test/locks_test.py
+++ b/tornado/test/locks_test.py
@@ -11,11 +11,11 @@
 # under the License.
 
 from datetime import timedelta
-import unittest
 
 from tornado import gen, locks
 from tornado.gen import TimeoutError
 from tornado.testing import gen_test, AsyncTestCase
+from tornado.test.util import unittest
 
 
 class ConditionTest(AsyncTestCase):