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
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+++ 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()