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#!/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()
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