From f8fa5ae4af770cdf69e2d335f3aff0b823b34009 Mon Sep 17 00:00:00 2001
From: Richard van der Hoff <richard@matrix.org>
Date: Tue, 9 Jan 2018 12:05:25 +0000
Subject: [PATCH] enable twisted delayedcall debugging in UTs

---
 tests/unittest.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tests/unittest.py b/tests/unittest.py
index 38715972dd..7b478c4294 100644
--- a/tests/unittest.py
+++ b/tests/unittest.py
@@ -12,7 +12,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-
+import twisted
 from twisted.trial import unittest
 
 import logging
@@ -65,6 +65,10 @@ class TestCase(unittest.TestCase):
 
         @around(self)
         def setUp(orig):
+            # enable debugging of delayed calls - this means that we get a
+            # traceback when a unit test exits leaving things on the reactor.
+            twisted.internet.base.DelayedCall.debug = True
+
             old_level = logging.getLogger().level
 
             if old_level != level:
-- 
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