bpo-33789, test_asyncio: Hide PendingDeprecationWarning (GH-7461)

Hide PendingDeprecationWarning in test__register_task_3().

diff --git a/Lib/test/test_asyncio/test_tasks.py b/Lib/test/test_asyncio/test_tasks.py
index 1c1a0ac01f5c16ee81165fc6b3f78fb66d111a5f..1079d49a402157d7f3774c0e46224ab33002b107 100644 (file)
--- a/Lib/test/test_asyncio/test_tasks.py
+++ b/Lib/test/test_asyncio/test_tasks.py
@@ -2613,7 +2613,8 @@ class BaseTaskIntrospectionTests:
         self.assertEqual(asyncio.all_tasks(loop), set())
         self._register_task(task)
         self.assertEqual(asyncio.all_tasks(loop), set())
-        self.assertEqual(asyncio.Task.all_tasks(loop), {task})
+        with self.assertWarns(PendingDeprecationWarning):
+            self.assertEqual(asyncio.Task.all_tasks(loop), {task})
         self._unregister_task(task)
 
     def test__enter_task(self):