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Diffstat (limited to 'sources/pyside2/tests/pysidetest/mixin_signal_slots_test.py')
| -rw-r--r-- | sources/pyside2/tests/pysidetest/mixin_signal_slots_test.py | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/sources/pyside2/tests/pysidetest/mixin_signal_slots_test.py b/sources/pyside2/tests/pysidetest/mixin_signal_slots_test.py new file mode 100644 index 000000000..cdd9ea19a --- /dev/null +++ b/sources/pyside2/tests/pysidetest/mixin_signal_slots_test.py @@ -0,0 +1,216 @@ +#!/usr/bin/python + +############################################################################# +## +## 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. +## +## $QT_END_LICENSE$ +## +############################################################################# + +''' PYSIDE-315: https://bugreports.qt.io/browse/PYSIDE-315 + Test that all signals and slots of a class (including any mixin classes) + are registered at type parsing time. Also test that the signal and slot + indices do not change after signal connection or emission. ''' + +import unittest +from PySide2 import QtCore + +class Mixin(object): + mixinSignal = QtCore.Signal() + def __init__(self, *args, **kwargs): + super(Mixin,self).__init__(*args, **kwargs) + +class MixinTwo(Mixin): + mixinTwoSignal = QtCore.Signal() + + def __init__(self, *args, **kwargs): + super(MixinTwo,self).__init__(*args, **kwargs) + self.mixinTwoSlotCalled = False + + @QtCore.Slot() + def mixinTwoSlot(self): + self.mixinTwoSlotCalled = True + +class MixinThree(object): + mixinThreeSignal = QtCore.Signal() + + def __init__(self, *args, **kwargs): + super(MixinThree,self).__init__(*args, **kwargs) + self.mixinThreeSlotCalled = False + + @QtCore.Slot() + def mixinThreeSlot(self): + self.mixinThreeSlotCalled = True + +class Derived(Mixin, QtCore.QObject): + derivedSignal = QtCore.Signal(str) + + def __init__(self): + super(Derived,self).__init__() + self.derivedSlotCalled = False + self.derivedSlotString = '' + + @QtCore.Slot(str) + def derivedSlot(self, theString): + self.derivedSlotCalled = True + self.derivedSlotString = theString + +class MultipleDerived(MixinTwo, MixinThree, Mixin, QtCore.QObject): + derivedSignal = QtCore.Signal(str) + + def __init__(self): + super(MultipleDerived,self).__init__() + self.derivedSlotCalled = False + self.derivedSlotString = '' + + @QtCore.Slot(str) + def derivedSlot(self, theString): + self.derivedSlotCalled = True + self.derivedSlotString = theString + + +class MixinTest(unittest.TestCase): + def testMixinSignalSlotRegistration(self): + obj = Derived() + m = obj.metaObject() + + # Should contain 2 signals and 1 slot immediately after type parsing + self.assertEqual(m.methodCount() - m.methodOffset(), 3) + + # Save method indices to check that they do not change + methodIndices = {} + for i in range(m.methodOffset(), m.methodCount()): + signature = m.method(i).methodSignature() + methodIndices[signature] = i + + # Check derivedSignal emission + obj.derivedSignal.connect(obj.derivedSlot) + obj.derivedSignal.emit('emit1') + self.assertTrue(obj.derivedSlotCalled) + obj.derivedSlotCalled = False + + # Check derivedSignal emission after mixingSignal connection + self.outsideSlotCalled = False + @QtCore.Slot() + def outsideSlot(): + self.outsideSlotCalled = True + + obj.mixinSignal.connect(outsideSlot) + obj.derivedSignal.emit('emit2') + self.assertTrue(obj.derivedSlotCalled) + self.assertFalse(self.outsideSlotCalled) + obj.derivedSlotCalled = False + + # Check mixinSignal emission + obj.mixinSignal.emit() + self.assertTrue(self.outsideSlotCalled) + self.assertFalse(obj.derivedSlotCalled) + self.outsideSlotCalled = False + + # Check that method indices haven't changed. + # Make sure to requery for the meta object, to check that a new one was not + # created as a child of the old one. + m = obj.metaObject() + self.assertEqual(m.methodCount() - m.methodOffset(), 3) + for i in range(m.methodOffset(), m.methodCount()): + signature = m.method(i).methodSignature() + self.assertEqual(methodIndices[signature], i) + + + def testMixinSignalSlotRegistrationWithMultipleInheritance(self): + obj = MultipleDerived() + m = obj.metaObject() + + # Should contain 4 signals and 3 slots immediately after type parsing + self.assertEqual(m.methodCount() - m.methodOffset(), 7) + + # Save method indices to check that they do not change + methodIndices = {} + for i in range(m.methodOffset(), m.methodCount()): + signature = m.method(i).methodSignature() + methodIndices[signature] = i + + # Check derivedSignal emission + obj.derivedSignal.connect(obj.derivedSlot) + obj.derivedSignal.emit('emit1') + self.assertTrue(obj.derivedSlotCalled) + self.assertFalse(obj.mixinTwoSlotCalled) + self.assertFalse(obj.mixinThreeSlotCalled) + obj.derivedSlotCalled = False + + # Check derivedSignal emission after mixinThreeSignal connection + self.outsideSlotCalled = False + @QtCore.Slot() + def outsideSlot(): + self.outsideSlotCalled = True + + obj.mixinThreeSignal.connect(obj.mixinThreeSlot) + obj.mixinThreeSignal.connect(outsideSlot) + obj.derivedSignal.emit('emit2') + self.assertTrue(obj.derivedSlotCalled) + self.assertFalse(obj.mixinTwoSlotCalled) + self.assertFalse(obj.mixinThreeSlotCalled) + self.assertFalse(self.outsideSlotCalled) + obj.derivedSlotCalled = False + + # Check mixinThreeSignal emission + obj.mixinThreeSignal.emit() + self.assertTrue(self.outsideSlotCalled) + self.assertTrue(obj.mixinThreeSlotCalled) + self.assertFalse(obj.derivedSlotCalled) + self.assertFalse(obj.mixinTwoSlotCalled) + self.outsideSlotCalled = False + obj.mixinThreeSlotCalled = False + + # Check mixinTwoSignal emission + obj.mixinTwoSignal.connect(obj.mixinTwoSlot) + obj.mixinTwoSignal.emit() + self.assertTrue(obj.mixinTwoSlotCalled) + self.assertFalse(obj.mixinThreeSlotCalled) + self.assertFalse(obj.derivedSlotCalled) + self.assertFalse(self.outsideSlotCalled) + obj.mixinTwoSlotCalled = False + + # Check mixinSignal emission + obj.mixinSignal.connect(outsideSlot) + obj.mixinSignal.emit() + self.assertTrue(self.outsideSlotCalled) + self.assertFalse(obj.mixinTwoSlotCalled) + self.assertFalse(obj.mixinThreeSlotCalled) + self.assertFalse(obj.derivedSlotCalled) + self.outsideSlotCalled = False + + # Check that method indices haven't changed. + # Make sure to requery for the meta object, to check that a new one was not + # created as a child of the old one. + m = obj.metaObject() + self.assertEqual(m.methodCount() - m.methodOffset(), 7) + for i in range(m.methodOffset(), m.methodCount()): + signature = m.method(i).methodSignature() + self.assertEqual(methodIndices[signature], i) + + +if __name__ == '__main__': + unittest.main() + |