GH-93850: Fix test_asyncio exception ignored tracebacks (GH-93854)

(cherry picked from commit b415c5f) Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com>
python · Jun 15, 2022 · d1fd739 · d1fd739
1 parent 40c257d
commit d1fd739
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/Lib/test/test_asyncio/test_runners.py b/Lib/test/test_asyncio/test_runners.py
@@ -45,6 +45,9 @@ class BaseTest(unittest.TestCase):
     def new_loop(self):
         loop = asyncio.BaseEventLoop()
         loop._process_events = mock.Mock()
+        # Mock waking event loop from select
+        loop._write_to_self = mock.Mock()
+        loop._write_to_self.return_value = None
         loop._selector = mock.Mock()
         loop._selector.select.return_value = ()
         loop.shutdown_ag_run = False