diff options
Diffstat (limited to 'sources/pyside2/tests/QtQml/qqmlincubator_incubateWhile.py')
-rw-r--r-- | sources/pyside2/tests/QtQml/qqmlincubator_incubateWhile.py | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/sources/pyside2/tests/QtQml/qqmlincubator_incubateWhile.py b/sources/pyside2/tests/QtQml/qqmlincubator_incubateWhile.py new file mode 100644 index 000000000..26be20f15 --- /dev/null +++ b/sources/pyside2/tests/QtQml/qqmlincubator_incubateWhile.py @@ -0,0 +1,96 @@ +#!/usr/bin/python +# -*- coding: utf-8 -*- + +############################################################################# +## +## Copyright (C) 2016 The Qt Company Ltd. +## Contact: https://www.qt.io/licensing/ +## +## This file is part of the test suite of PySide2. +## +## $QT_BEGIN_LICENSE:GPL-EXCEPT$ +## Commercial License Usage +## Licensees holding valid commercial Qt licenses may use this file in +## accordance with the commercial license agreement provided with the +## Software or, alternatively, in accordance with the terms contained in +## a written agreement between you and The Qt Company. For licensing terms +## and conditions see https://www.qt.io/terms-conditions. For further +## information use the contact form at https://www.qt.io/contact-us. +## +## GNU General Public License Usage +## Alternatively, this file may be used under the terms of the GNU +## General Public License version 3 as published by the Free Software +## Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT +## included in the packaging of this file. Please review the following +## information to ensure the GNU General Public License requirements will +## be met: https://www.gnu.org/licenses/gpl-3.0.html. +## +## $QT_END_LICENSE$ +## +############################################################################# + +import unittest +import sys +from helper import adjust_filename + +from PySide2.QtCore import QObject, QUrl, Slot, QTimer +from PySide2.QtGui import QGuiApplication +from PySide2.QtQml import QQmlIncubationController, VolatileBool +from PySide2.QtQuick import QQuickView + +class CustomIncubationController(QObject, QQmlIncubationController): + def __init__(self, test): + QObject.__init__(self) + QQmlIncubationController.__init__(self) + self.test = test + self.interrupted = False + + # Incubate every 50 milliseconds + self.startTimer(50) + self.incubationShouldContinue = VolatileBool(True) + self.test.assertEqual(self.incubationShouldContinue.get(), True) + + @Slot() + def interrupter(self): + if not self.interrupted: + self.interrupted = True + self.incubationShouldContinue.set(False) + self.test.assertEqual(self.incubationShouldContinue.get(), False) + QTimer.singleShot(0, QGuiApplication.instance().quit) + + def timerEvent(self, ev): + # Incubate items for 2000 milliseconds, or until the volatile bool is set to false. + self.incubateWhile(self.incubationShouldContinue, 2000) + +class TestBug(unittest.TestCase): + def testIncubateWhileCall(self): + app = QGuiApplication(sys.argv) + view = QQuickView() + controller = CustomIncubationController(self) + view.engine().setIncubationController(controller) + view.setResizeMode(QQuickView.SizeRootObjectToView) + view.setSource(QUrl.fromLocalFile(adjust_filename('qqmlincubator_incubateWhile.qml', + __file__))) + view.show() + + root = view.rootObject() + # The QML code will issue an interrupt signal after half of its items are loaded. + root.shouldInterrupt.connect(controller.interrupter) + res = app.exec_() + + itemsToCreate = root.property("itemsToCreate") + loadedItems = root.property("loadedItems") + self.assertEqual(loadedItems, itemsToCreate / 2) + + # Finish incubating the remaining items. + controller.incubateFor(1000) + loadedItems = root.property("loadedItems") + self.assertEqual(loadedItems, itemsToCreate) + + # Deleting the view before it goes out of scope is required to make sure all child QML + # instances are destroyed in the correct order. + del view + del app + +if __name__ == '__main__': + unittest.main() |