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Diffstat (limited to 'sources/pyside2/tests/pysidetest/properties_test.py')
-rw-r--r-- | sources/pyside2/tests/pysidetest/properties_test.py | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/sources/pyside2/tests/pysidetest/properties_test.py b/sources/pyside2/tests/pysidetest/properties_test.py new file mode 100644 index 000000000..cedfac8d1 --- /dev/null +++ b/sources/pyside2/tests/pysidetest/properties_test.py @@ -0,0 +1,132 @@ +############################################################################# +## +## Copyright (C) 2020 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. +## +## $QT_END_LICENSE$ +## +############################################################################# + +import os +import sys +import unittest + +sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__)))) +from init_paths import init_test_paths +init_test_paths(False) + +from PySide2.QtCore import QObject, QStringListModel, Signal, Property, Slot + +"""Tests PySide2.QtCore.Property()""" + + +class TestObject(QObject): + + valueChanged = Signal() + + def __init__(self, parent=None): + super(TestObject, self).__init__(parent) + self._value = -1 + self.valueChanged.connect(self._changed) + self.getter_called = 0 + self.setter_called = 0 + self.changed_emitted = 0 + + @Slot(int) + def _changed(self): + self.changed_emitted += 1 + + def getValue(self): + self.getter_called += 1 + return self._value + + def setValue(self, value): + self.setter_called += 1 + if (self._value != value): + self._value = value + self.valueChanged.emit() + + value = Property(int, fget=getValue, fset=setValue, + notify=valueChanged) + + +class TestDerivedObject(QStringListModel): + + valueChanged = Signal() + + def __init__(self, parent=None): + super(TestDerivedObject, self).__init__(parent) + self._value = -1 + self.valueChanged.connect(self._changed) + self.getter_called = 0 + self.setter_called = 0 + self.changed_emitted = 0 + + @Slot(int) + def _changed(self): + self.changed_emitted += 1 + + def getValue(self): + self.getter_called += 1 + return self._value + + def setValue(self, value): + self.setter_called += 1 + if (self._value != value): + self._value = value + self.valueChanged.emit() + + value = Property(int, fget=getValue, fset=setValue, + notify=valueChanged) + + +class PropertyTest(unittest.TestCase): + + def test1Object(self): + """Basic property test.""" + testObject = TestObject() + v = testObject.value + self.assertEqual(v, -1) + self.assertEqual(testObject.getter_called, 1) + testObject.value = 42 + v = testObject.value + self.assertEqual(v, 42) + self.assertEqual(testObject.changed_emitted, 1) + self.assertEqual(testObject.setter_called, 1) + self.assertEqual(testObject.getter_called, 2) + + def test2DerivedObject(self): + """PYSIDE-1255: Run the same test for a class inheriting QObject.""" + testObject = TestDerivedObject() + v = testObject.value + self.assertEqual(v, -1) + self.assertEqual(testObject.getter_called, 1) + testObject.value = 42 + v = testObject.value + self.assertEqual(v, 42) + self.assertEqual(testObject.changed_emitted, 1) + self.assertEqual(testObject.setter_called, 1) + self.assertEqual(testObject.getter_called, 2) + + +if __name__ == '__main__': + unittest.main() |