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#!/usr/bin/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
'''Test cases for QTimer.singleShot'''
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, QThread, QTimer, Signal
from helper.usesqapplication import UsesQApplication
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 ThreadForContext(QThread):
def __init__(self):
super().__init__()
self.called = False
self.qthread = None
self.context = QObject()
def run(self):
self.called = True
self.qthread = QThread.currentThread()
self.exec()
class TestSingleShot(UsesQApplication):
'''Test case for QTimer.singleShot'''
def setUp(self):
# Acquire resources
UsesQApplication.setUp(self)
self.watchdog = WatchDog(self)
self.called = False
self.qthread = None
def tearDown(self):
# Release resources
del self.watchdog
del self.called
# PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
gc.collect()
UsesQApplication.tearDown(self)
def callback(self):
self.called = True
self.qthread = QThread.currentThread()
self.qthread.exit()
self.app.quit()
def testSingleShot(self):
QTimer.singleShot(100, self.callback)
self.app.exec()
self.assertTrue(self.called)
def testSingleShotWithContext(self):
thread = ThreadForContext()
thread.start()
thread.context.moveToThread(thread)
QTimer.singleShot(100, thread.context, self.callback)
self.app.exec()
thread.wait()
self.assertTrue(self.called)
self.assertTrue(thread.called)
self.assertEqual(self.qthread, thread.qthread)
def testSingleShotWithContextZero(self):
thread = ThreadForContext()
thread.start()
thread.context.moveToThread(thread)
QTimer.singleShot(0, thread.context, self.callback)
self.app.exec()
thread.wait()
self.assertTrue(self.called)
self.assertTrue(thread.called)
self.assertEqual(self.qthread, thread.qthread)
class SigEmitter(QObject):
sig1 = Signal()
class TestSingleShotSignal(UsesQApplication):
'''Test case for QTimer.singleShot connecting to signals'''
def setUp(self):
UsesQApplication.setUp(self)
self.watchdog = WatchDog(self)
self.called = False
def tearDown(self):
del self.watchdog
del self.called
# PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
gc.collect()
UsesQApplication.tearDown(self)
def callback(self):
self.called = True
self.app.quit()
def testSingleShotSignal(self):
emitter = SigEmitter()
emitter.sig1.connect(self.callback)
QTimer.singleShot(100, emitter.sig1)
self.app.exec()
self.assertTrue(self.called)
if __name__ == '__main__':
unittest.main()
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