1 files changed, 20 insertions, 4 deletions
diff --git a/sources/pyside6/tests/QtCore/qobject_event_filter_test.py b/sources/pyside6/tests/QtCore/qobject_event_filter_test.py
index a2870221d..ab7a1b6ad 100644
--- a/sources/pyside6/tests/QtCore/qobject_event_filter_test.py
+++ b/sources/pyside6/tests/QtCore/qobject_event_filter_test.py
@@ -16,7 +16,7 @@ init_test_paths(False)
 
 from PySide6.QtCore import QObject, QTimerEvent
 
-from helper.usesqcoreapplication import UsesQCoreApplication
+from helper.usesqapplication import UsesQApplication
 
 
 class FilterObject(QObject):
@@ -63,14 +63,25 @@ class FilteredObject(QObject):
             self.app.quit()
 
 
-class TestQObjectEventFilterPython(UsesQCoreApplication):
+class PolymorphicIdFilterObject(QObject):
+    """PYSIDE-2675: Check whether QChildEvent.added() is accessible via PolymorphicId"""
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self.added = False
+
+    def event(self, event):
+        self.added = event.added()
+        return False
+
+
+class TestQObjectEventFilterPython(UsesQApplication):
     '''QObject.eventFilter - Reimplemented in python
     Filters 5 TimerEvents and then bypasses the other events to the
     timerEvent method. After 5 runs, the timerEvent method will ask
     the core application to exit'''
     def setUp(self):
         # Acquire resources
-        UsesQCoreApplication.setUp(self)
+        UsesQApplication.setUp(self)
         self.obj_filter = FilterObject(event_type=QTimerEvent)
 
     def tearDown(self):
@@ -78,7 +89,7 @@ class TestQObjectEventFilterPython(UsesQCoreApplication):
         del self.obj_filter
         # PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
         gc.collect()
-        UsesQCoreApplication.tearDown(self)
+        UsesQApplication.tearDown(self)
 
     def testEventFilter(self):
         # QObject.eventFilter reimplemented in python
@@ -93,6 +104,11 @@ class TestQObjectEventFilterPython(UsesQCoreApplication):
         self.assertEqual(filtered.times_called, 5)
         self.assertEqual(self.obj_filter.events_handled, 5)
 
+    def testPolymorphicId(self):
+        testObject = PolymorphicIdFilterObject()
+        t2 = QObject(testObject)  # noqa: F841
+        self.assertTrue(testObject.added)
+
     @unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount")
     def testInstallEventFilterRefCountAfterDelete(self):
         '''Bug 910 - installEventFilter() increments reference count on target object