1 files changed, 95 insertions, 0 deletions
diff --git a/sources/shiboken6/tests/samplebinding/ownership_invalidate_after_use_test.py b/sources/shiboken6/tests/samplebinding/ownership_invalidate_after_use_test.py
new file mode 100644
index 000000000..37b7591e4
--- /dev/null
+++ b/sources/shiboken6/tests/samplebinding/ownership_invalidate_after_use_test.py
@@ -0,0 +1,95 @@
+#!/usr/bin/env python
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+'''Ownership tests for cases of invalidation of Python wrapper after use.'''
+
+import os
+import sys
+import unittest
+
+from pathlib import Path
+sys.path.append(os.fspath(Path(__file__).resolve().parents[1]))
+from shiboken_paths import init_paths
+init_paths()
+
+from sample import ObjectType, ObjectTypeDerived, Event
+
+
+class ExtObjectType(ObjectType):
+    def __init__(self):
+        ObjectType.__init__(self)
+        self.type_of_last_event = None
+        self.last_event = None
+
+    def event(self, event):
+        self.last_event = event
+        self.type_of_last_event = event.eventType()
+        return True
+
+
+class MyObjectType (ObjectType):
+    def __init__(self):
+        super(MyObjectType, self).__init__()
+        self.fail = False
+
+    def event(self, ev):
+        self.callInvalidateEvent(ev)
+        try:
+            ev.eventType()
+        except:  # noqa: E722
+            self.fail = True
+            raise
+        return True
+
+    def invalidateEvent(self, ev):
+        pass
+
+
+class ExtObjectTypeDerived(ObjectTypeDerived):
+    def __init__(self):
+        ObjectTypeDerived.__init__(self)
+        self.type_of_last_event = None
+        self.last_event = None
+
+    def event(self, event):
+        self.last_event = event
+        self.type_of_last_event = event.eventType()
+        return True
+
+
+class OwnershipInvalidateAfterUseTest(unittest.TestCase):
+    '''Ownership tests for cases of invalidation of Python wrapper after use.'''
+
+    def testInvalidateAfterUse(self):
+        '''In ObjectType.event(Event*) the wrapper object created for Event
+           must me marked as invalid after the method is called.'''
+        eot = ExtObjectType()
+        eot.causeEvent(Event.SOME_EVENT)
+        self.assertEqual(eot.type_of_last_event, Event.SOME_EVENT)
+        self.assertRaises(RuntimeError, eot.last_event.eventType)
+
+    def testObjectInvalidatedAfterUseAsParameter(self):
+        '''Tries to use wrapper invalidated after use as a parameter to another method.'''
+        eot = ExtObjectType()
+        ot = ObjectType()
+        eot.causeEvent(Event.ANY_EVENT)
+        self.assertEqual(eot.type_of_last_event, Event.ANY_EVENT)
+        self.assertRaises(RuntimeError, ot.event, eot.last_event)
+
+    def testit(self):
+        obj = MyObjectType()
+        obj.causeEvent(Event.BASIC_EVENT)
+        self.assertFalse(obj.fail)
+
+    def testInvalidateAfterUseInDerived(self):
+        '''Invalidate was failing in a derived C++ class that also inherited
+        other base classes'''
+        eot = ExtObjectTypeDerived()
+        eot.causeEvent(Event.SOME_EVENT)
+        self.assertEqual(eot.type_of_last_event, Event.SOME_EVENT)
+        self.assertRaises(RuntimeError, eot.last_event.eventType)
+
+
+if __name__ == '__main__':
+    unittest.main()