Fix: bt2: adjust reference counting of value objects

[babeltrace.git] / tests / bindings / python / bt2 / test_component_class.py

diff --git a/tests/bindings/python/bt2/test_component_class.py b/tests/bindings/python/bt2/test_component_class.py
index 73f0439bfdc30fcd804750b6f4ad5eaed167af02..bc60606c72d2a5cbcf496f355c044d3df5d90aec 100644 (file)
--- a/tests/bindings/python/bt2/test_component_class.py
+++ b/tests/bindings/python/bt2/test_component_class.py
@@ -245,6 +245,18 @@ class UserComponentClassTestCase(unittest.TestCase):
         self.assertEqual(query_log_level, bt2.LoggingLevel.WARNING)
         del query_log_level
 
+    def test_query_returns_none(self):
+        class MySink(bt2._UserSinkComponent):
+            def _consume(self):
+                pass
+
+            @staticmethod
+            def _query(query_exec, obj, params, log_level):
+                return
+
+        res = bt2.QueryExecutor().query(MySink, 'obj', None)
+        self.assertIsNone(res)
+
     def test_query_simple(self):
         class MySink(bt2._UserSinkComponent):
             def _consume(self):