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# Copyright (C) 2023 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
import os
import sys
import unittest
from functools import partial
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.QtWidgets import QWidget
from helper.usesqapplication import UsesQApplication
have_debug = hasattr(sys, "gettotalrefcount")
class LeakerLambda():
def __init__(self, widget):
widget.windowIconChanged.connect(lambda *args: None)
class LeakerFunctoolsPartial():
def __init__(self, widget):
widget.windowIconChanged.connect(partial(int, 0))
class TestBugPYSIDE2299(UsesQApplication):
def leak(self, leaker):
widget = QWidget()
# Warm-up
leaker(widget)
refs_before = sys.gettotalrefcount()
for _ in range(1000):
leaker(widget)
refs_after = sys.gettotalrefcount()
self.assertAlmostEqual(refs_after - refs_before, 0, delta=10)
@unittest.skipUnless(have_debug, "You need a debug build")
def test_lambda(self):
self.leak(LeakerLambda)
@unittest.skipUnless(have_debug, "You need a debug build")
def test_functools_partial(self):
self.leak(LeakerFunctoolsPartial)
if __name__ == '__main__':
unittest.main()
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