diff options
Diffstat (limited to 'sources/pyside6/tests/QtWidgets/qlayout_ref_test.py')
| -rw-r--r-- | sources/pyside6/tests/QtWidgets/qlayout_ref_test.py | 109 |
1 files changed, 47 insertions, 62 deletions
diff --git a/sources/pyside6/tests/QtWidgets/qlayout_ref_test.py b/sources/pyside6/tests/QtWidgets/qlayout_ref_test.py index d10141098..df9bd7f90 100644 --- a/sources/pyside6/tests/QtWidgets/qlayout_ref_test.py +++ b/sources/pyside6/tests/QtWidgets/qlayout_ref_test.py @@ -1,36 +1,11 @@ -############################################################################# -## -## Copyright (C) 2016 The Qt Company Ltd. -## Contact: https://www.qt.io/licensing/ -## -## This file is part of the test suite of Qt for Python. -## -## $QT_BEGIN_LICENSE:GPL-EXCEPT$ -## 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. -## -## $QT_END_LICENSE$ -## -############################################################################# +# 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 QLayout handling of child widgets references''' +import gc import os import sys -from sys import getrefcount import unittest from pathlib import Path @@ -44,6 +19,7 @@ from PySide6.QtWidgets import QApplication, QPushButton, QLabel from helper.usesqapplication import UsesQApplication + class SaveReference(UsesQApplication): '''Test case to check if QLayout-derived classes increment the refcount of widgets passed to addWidget()''' @@ -52,66 +28,70 @@ class SaveReference(UsesQApplication): qapplication = True def setUp(self): - #Acquire resources + # Acquire resources super(SaveReference, self).setUp() self.widget1 = QPushButton('click me') self.widget2 = QLabel('aaa') def tearDown(self): - #Release resources + # Release resources del self.widget2 del self.widget1 + # PYSIDE-535: Need to collect garbage in PyPy to trigger deletion + gc.collect() super(SaveReference, self).tearDown() + @unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount") def checkLayoutReference(self, layout): - #Checks the reference cound handling of layout.addWidget - self.assertEqual(getrefcount(self.widget1), 2) + # Checks the reference cound handling of layout.addWidget + self.assertEqual(sys.getrefcount(self.widget1), 2) layout.addWidget(self.widget1) - self.assertEqual(getrefcount(self.widget1), 3) + self.assertEqual(sys.getrefcount(self.widget1), 3) - self.assertEqual(getrefcount(self.widget2), 2) + self.assertEqual(sys.getrefcount(self.widget2), 2) layout.addWidget(self.widget2) - self.assertEqual(getrefcount(self.widget2), 3) + self.assertEqual(sys.getrefcount(self.widget2), 3) # Check if doesn't mess around with previous widget refcount - self.assertEqual(getrefcount(self.widget1), 3) + self.assertEqual(sys.getrefcount(self.widget1), 3) + @unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount") def testMoveLayout(self): l = QHBoxLayout() - self.assertEqual(getrefcount(self.widget1), 2) + self.assertEqual(sys.getrefcount(self.widget1), 2) l.addWidget(self.widget1) - self.assertEqual(getrefcount(self.widget1), 3) + self.assertEqual(sys.getrefcount(self.widget1), 3) w = QWidget() w.setLayout(l) - self.assertEqual(getrefcount(self.widget1), 3) - + self.assertEqual(sys.getrefcount(self.widget1), 3) def testHBoxReference(self): - #QHBoxLayout.addWidget reference count + # QHBoxLayout.addWidget reference count w = QWidget() self.checkLayoutReference(QHBoxLayout(w)) def testVBoxReference(self): - #QVBoxLayout.addWidget reference count + # QVBoxLayout.addWidget reference count w = QWidget() self.checkLayoutReference(QVBoxLayout(w)) def testGridReference(self): - #QGridLayout.addWidget reference count + # QGridLayout.addWidget reference count w = QWidget() self.checkLayoutReference(QGridLayout(w)) def testFormReference(self): - #QFormLayout.addWidget reference count + # QFormLayout.addWidget reference count w = QWidget() self.checkLayoutReference(QFormLayout(w)) def testStackedReference(self): - #QStackedLayout.addWidget reference count + # QStackedLayout.addWidget reference count w = QWidget() self.checkLayoutReference(QStackedLayout(w)) + class MultipleAdd(UsesQApplication): '''Test case to check if refcount is incremented only once when multiple calls to addWidget are made with the same widget''' @@ -119,30 +99,35 @@ class MultipleAdd(UsesQApplication): qapplication = True def setUp(self): - #Acquire resources + # Acquire resources super(MultipleAdd, self).setUp() self.widget = QPushButton('click me') self.win = QWidget() self.layout = QHBoxLayout(self.win) def tearDown(self): - #Release resources + # Release resources del self.widget del self.layout del self.win + # PYSIDE-535: Need to collect garbage in PyPy to trigger deletion + gc.collect() super(MultipleAdd, self).tearDown() + @unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount") def testRefCount(self): - #Multiple QLayout.addWidget calls on the same widget - self.assertEqual(getrefcount(self.widget), 2) + # Multiple QLayout.addWidget calls on the same widget + self.assertEqual(sys.getrefcount(self.widget), 2) self.layout.addWidget(self.widget) - self.assertEqual(getrefcount(self.widget), 3) + self.assertEqual(sys.getrefcount(self.widget), 3) self.layout.addWidget(self.widget) - self.assertEqual(getrefcount(self.widget), 3) + self.assertEqual(sys.getrefcount(self.widget), 3) self.layout.addWidget(self.widget) - self.assertEqual(getrefcount(self.widget), 3) + self.assertEqual(sys.getrefcount(self.widget), 3) + class InternalAdd(UsesQApplication): + @unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount") def testInternalRef(self): mw = QWidget() w = QWidget() @@ -151,35 +136,35 @@ class InternalAdd(UsesQApplication): topLayout = QGridLayout() # unique reference - self.assertEqual(getrefcount(w), 2) - self.assertEqual(getrefcount(ow), 2) + self.assertEqual(sys.getrefcount(w), 2) + self.assertEqual(sys.getrefcount(ow), 2) topLayout.addWidget(w, 0, 0) topLayout.addWidget(ow, 1, 0) # layout keep the referemce - self.assertEqual(getrefcount(w), 3) - self.assertEqual(getrefcount(ow), 3) + self.assertEqual(sys.getrefcount(w), 3) + self.assertEqual(sys.getrefcount(ow), 3) mainLayout = QGridLayout() mainLayout.addLayout(topLayout, 1, 0, 1, 4) # the same reference - self.assertEqual(getrefcount(w), 3) - self.assertEqual(getrefcount(ow), 3) + self.assertEqual(sys.getrefcount(w), 3) + self.assertEqual(sys.getrefcount(ow), 3) mw.setLayout(mainLayout) # now trasfer the ownership to mw - self.assertEqual(getrefcount(w), 3) - self.assertEqual(getrefcount(ow), 3) + self.assertEqual(sys.getrefcount(w), 3) + self.assertEqual(sys.getrefcount(ow), 3) del mw # remove the ref and invalidate the widget - self.assertEqual(getrefcount(w), 2) - self.assertEqual(getrefcount(ow), 2) + self.assertEqual(sys.getrefcount(w), 2) + self.assertEqual(sys.getrefcount(ow), 2) if __name__ == '__main__': |