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Diffstat (limited to 'sources/shiboken2/tests/samplebinding/class_fields_test.py')
| -rw-r--r-- | sources/shiboken2/tests/samplebinding/class_fields_test.py | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/sources/shiboken2/tests/samplebinding/class_fields_test.py b/sources/shiboken2/tests/samplebinding/class_fields_test.py new file mode 100644 index 000000000..0a2491cf2 --- /dev/null +++ b/sources/shiboken2/tests/samplebinding/class_fields_test.py @@ -0,0 +1,168 @@ +#!/usr/bin/env 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. +## +## $QT_END_LICENSE$ +## +############################################################################# + +'''Simple test case for accessing the exposed C++ class fields.''' + +from sys import getrefcount +import unittest + +from sample import Derived, Point, ObjectType + +class TestAccessingCppFields(unittest.TestCase): + '''Simple test case for accessing the exposed C++ class fields.''' + + def testAccessingPrimitiveTypeField(self): + '''Reads and writes a primitive type (in this case an 'int') field.''' + d = Derived() + self.assertEqual(type(d.primitiveField), int) + + # attribution + old_value = d.primitiveField + new_value = 2255 + d.primitiveField = new_value + self.assertEqual(d.primitiveField, new_value) + self.assertNotEqual(d.primitiveField, old_value) + + # attribution with a convertible type + value = 1.2 + d.primitiveField = value + self.assertEqual(d.primitiveField, int(value)) + + # attribution with invalid type + self.assertRaises(TypeError, lambda : setattr(d, 'primitiveField', None)) + + def testAccessingUsersPrimitiveTypeField(self): + '''Reads and writes an user's primitive type (in this case an 'Complex') field.''' + d = Derived() + self.assertEqual(type(d.userPrimitiveField), complex) + + # attribution + old_value = d.userPrimitiveField + new_value = complex(1.1, 2.2) + d.userPrimitiveField = new_value + self.assertEqual(d.userPrimitiveField, new_value) + self.assertNotEqual(d.userPrimitiveField, old_value) + + # attribution with invalid type + self.assertRaises(TypeError, lambda : setattr(d, 'userPrimitiveField', None)) + + def testAccessingValueTypeField(self): + '''Reads and writes a value type (in this case a 'Point') field.''' + d = Derived() + self.assertEqual(type(d.valueTypeField), Point) + + # attribution + old_value = d.valueTypeField + new_value = Point(-10, 537) + d.valueTypeField = new_value + self.assertEqual(d.valueTypeField, new_value) + + #object modify + d.valueTypeField.setX(10) + d.valueTypeField.setY(20) + self.assertEqual(d.valueTypeField.x(), 10) + self.assertEqual(d.valueTypeField.y(), 20) + + # attribution with invalid type + self.assertRaises(TypeError, lambda : setattr(d, 'valueTypeField', 123)) + + def testAccessingObjectTypeField(self): + '''Reads and writes a object type (in this case an 'ObjectType') field.''' + d = Derived() + + # attribution + old_value = d.objectTypeField + new_value = ObjectType() + d.objectTypeField = new_value + self.assertEqual(d.objectTypeField, new_value) + self.assertNotEqual(d.objectTypeField, old_value) + + # attribution with a convertible type + value = None + d.objectTypeField = value + self.assertEqual(d.objectTypeField, value) + + # attribution with invalid type + self.assertRaises(TypeError, lambda : setattr(d, 'objectTypeField', 123)) + + def testRefCountingAccessingObjectTypeField(self): + '''Accessing a object type field should respect the reference counting rules.''' + d = Derived() + + # attributing object to instance's field should increase its reference count + o1 = ObjectType() + refcount1 = getrefcount(o1) + d.objectTypeField = o1 + self.assertEqual(d.objectTypeField, o1) + self.assertEqual(getrefcount(d.objectTypeField), refcount1 + 1) + + # attributing a new object to instance's field should decrease the previous object's reference count + o2 = ObjectType() + refcount2 = getrefcount(o2) + d.objectTypeField = o2 + self.assertEqual(d.objectTypeField, o2) + self.assertEqual(getrefcount(o1), refcount1) + self.assertEqual(getrefcount(d.objectTypeField), refcount2 + 1) + + def testRefCountingOfReferredObjectAfterDeletingReferrer(self): + '''Deleting the object referring to other object should decrease the reference count of the referee.''' + d = Derived() + o = ObjectType() + refcount = getrefcount(o) + d.objectTypeField = o + self.assertEqual(getrefcount(o), refcount + 1) + del d + self.assertEqual(getrefcount(o), refcount) + + def testStaticField(self): + self.assertEqual(Derived.staticPrimitiveField, 0) + + def testAccessingUnsignedIntBitField(self): + d = Derived() + + # attribution + old_value = d.bitField + new_value = 1 + d.bitField= new_value + self.assertEqual(d.bitField, new_value) + self.assertNotEqual(d.bitField, old_value) + + # attribution with a convertible type + value = 1.2 + d.bitField = value + self.assertEqual(d.bitField, int(value)) + + # attribution with invalid type + self.assertRaises(TypeError, lambda : setattr(d, 'bitField', None)) + + +if __name__ == '__main__': + unittest.main() |