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Diffstat (limited to 'sources/pyside2/tests/signals/lambda_gui_test.py')
-rw-r--r-- | sources/pyside2/tests/signals/lambda_gui_test.py | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/sources/pyside2/tests/signals/lambda_gui_test.py b/sources/pyside2/tests/signals/lambda_gui_test.py new file mode 100644 index 000000000..dc6ef0296 --- /dev/null +++ b/sources/pyside2/tests/signals/lambda_gui_test.py @@ -0,0 +1,73 @@ +############################################################################# +## +## 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. +## +## $QT_END_LICENSE$ +## +############################################################################# + +'''Connecting lambda to gui signals''' + +import unittest + +from PySide2.QtCore import QObject, SIGNAL + +try: + from PySide2.QtWidgets import QSpinBox, QPushButton + hasQtGui = True +except ImportError: + hasQtGui = False + +from helper import UsesQApplication + +if hasQtGui: + class Control: + def __init__(self): + self.arg = False + + class QtGuiSigLambda(UsesQApplication): + + def testButton(self): + #Connecting a lambda to a QPushButton.clicked() + obj = QPushButton('label') + ctr = Control() + func = lambda: setattr(ctr, 'arg', True) + QObject.connect(obj, SIGNAL('clicked()'), func) + obj.click() + self.assertTrue(ctr.arg) + QObject.disconnect(obj, SIGNAL('clicked()'), func) + + + def testSpinButton(self): + #Connecting a lambda to a QPushButton.clicked() + obj = QSpinBox() + ctr = Control() + arg = 444 + func = lambda x: setattr(ctr, 'arg', 444) + QObject.connect(obj, SIGNAL('valueChanged(int)'), func) + obj.setValue(444) + self.assertEqual(ctr.arg, arg) + QObject.disconnect(obj, SIGNAL('valueChanged(int)'), func) + +if __name__ == '__main__': + unittest.main() |