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# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
'''Test case for timeout() signals from QTimer object.'''
import gc
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, QTimer, SIGNAL
from helper.usesqcoreapplication import UsesQCoreApplication
class WatchDog(QObject):
'''Exits the QCoreApplication main loop after sometime.'''
def __init__(self, watched):
super().__init__()
self.times_called = 0
self.watched = watched
def timerEvent(self, evt):
self.times_called += 1
if self.times_called == 20:
self.watched.exit_app_cb()
class TestTimeoutSignal(UsesQCoreApplication):
'''Test case to check if the signals are really being caught'''
def setUp(self):
# Acquire resources
UsesQCoreApplication.setUp(self)
self.watchdog = WatchDog(self)
self.timer = QTimer()
self.called = False
def tearDown(self):
# Release resources
del self.watchdog
del self.timer
del self.called
# PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
gc.collect()
UsesQCoreApplication.tearDown(self)
def callback(self, *args):
# Default callback
self.called = True
@unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount")
def testTimeoutSignal(self):
# Test the QTimer timeout() signal
refCount = sys.getrefcount(self.timer)
self.timer.timeout.connect(self.callback)
self.timer.start(4)
self.watchdog.startTimer(10)
self.app.exec()
self.assertTrue(self.called)
self.assertEqual(sys.getrefcount(self.timer), refCount)
if __name__ == '__main__':
unittest.main()
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