diff options
Diffstat (limited to 'sources/pyside6/tests/signals/slot_reference_count_test.py')
-rw-r--r-- | sources/pyside6/tests/signals/slot_reference_count_test.py | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/sources/pyside6/tests/signals/slot_reference_count_test.py b/sources/pyside6/tests/signals/slot_reference_count_test.py new file mode 100644 index 000000000..9d5c73652 --- /dev/null +++ b/sources/pyside6/tests/signals/slot_reference_count_test.py @@ -0,0 +1,70 @@ +# Copyright (C) 2022 The Qt Company Ltd. +# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0 + +''' Forced disconnection: Delete one end of the signal connection''' + +import os +import sys +import unittest + +from pathlib import Path +sys.path.append(os.fspath(Path(__file__).resolve().parents[1])) +from init_paths import init_test_paths +init_test_paths(False) + +from PySide6.QtCore import QObject, Signal + + +class Dummy(QObject): + foo = Signal() + + def dispatch(self): + self.foo.emit() + + +class PythonSignalRefCount(unittest.TestCase): + + def setUp(self): + self.emitter = Dummy() + + def tearDown(self): + self.emitter + + @unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount") + def testRefCount(self): + def cb(*args): + pass + + self.assertEqual(sys.getrefcount(cb), 2) + + self.emitter.foo.connect(cb) + self.assertEqual(sys.getrefcount(cb), 3) + + self.emitter.foo.disconnect(cb) + self.assertEqual(sys.getrefcount(cb), 2) + + +class CppSignalRefCount(unittest.TestCase): + + def setUp(self): + self.emitter = QObject() + + def tearDown(self): + self.emitter + + @unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount") + def testRefCount(self): + def cb(*args): + pass + + self.assertEqual(sys.getrefcount(cb), 2) + + self.emitter.destroyed.connect(cb) + self.assertEqual(sys.getrefcount(cb), 3) + + self.emitter.destroyed.disconnect(cb) + self.assertEqual(sys.getrefcount(cb), 2) + + +if __name__ == '__main__': + unittest.main() |