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#!/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.
##
## $QT_END_LICENSE$
##
#############################################################################
'''Test cases for modified virtual methods.'''
import unittest
from sample import VirtualMethods, Str
class ExtendedVirtualMethods(VirtualMethods):
def __init__(self):
VirtualMethods.__init__(self)
self.name_called = False
self.sum0_called = False
self.sum1_called = False
self.sum2_called = False
self.sum3_called = False
self.sum4_called = False
self.sumThree_called = False
self.callMe_called = 0
self.multiplier = 12345
def sum0(self, a0, a1, a2):
self.sum0_called = True
return VirtualMethods.sumThree(self, a0, a1, a2) * self.multiplier
def sumThree(self, a0, a1, a2):
self.sumThree_called = True
return VirtualMethods.sumThree(self, a0, a1, a2) * self.multiplier
def sum1(self, a0, a1, a2):
self.sum1_called = True
return VirtualMethods.sum1(self, a0, a1, a2) * self.multiplier
def sum2(self, a0, a1):
self.sum2_called = True
return VirtualMethods.sum2(self, a0, a1) * self.multiplier
def sum3(self, a0, a1):
self.sum3_called = True
return VirtualMethods.sum3(self, a0, a1) * self.multiplier
def sum4(self, a0, a1):
self.sum4_called = True
return VirtualMethods.sum4(self, a0, a1) * self.multiplier
def name(self):
self.name_called = True
return Str('ExtendedVirtualMethods')
def callMe(self):
self.callMe_called += 1
def getMargins(self):
return tuple([m*2 for m in VirtualMethods.getMargins(self)])
class VirtualMethodsTest(unittest.TestCase):
'''Test case for modified virtual methods.'''
def setUp(self):
self.vm = VirtualMethods()
self.evm = ExtendedVirtualMethods()
def tearDown(self):
del self.vm
del self.evm
def testModifiedVirtualMethod0(self):
'''Renamed virtual method.'''
a0, a1, a2 = 2, 3, 5
result0 = self.vm.callSum0(a0, a1, a2)
result1 = self.vm.sumThree(a0, a1, a2)
self.assertEqual(result0, a0 + a1 + a2)
self.assertEqual(result0, result1)
self.assertRaises(AttributeError, getattr, self.vm, 'sum0')
def testReimplementedModifiedVirtualMethod0(self):
'''Override of a renamed virtual method.'''
a0, a1, a2 = 2, 3, 5
result0 = self.vm.callSum0(a0, a1, a2)
result1 = self.vm.sumThree(a0, a1, a2)
result2 = self.evm.callSum0(a0, a1, a2)
self.assertEqual(result0, result1)
self.assertEqual(result0 * self.evm.multiplier, result2)
self.assertTrue(self.evm.sumThree_called)
self.assertFalse(self.evm.sum0_called)
def testModifiedVirtualMethod1(self):
'''Virtual method with three arguments and the last one
changed to have the default value set to 1000.'''
a0, a1, a2 = 2, 3, 5
result0 = self.vm.sum1(a0, a1)
self.assertEqual(result0, a0 + a1 + 1000)
result1 = self.vm.sum1(a0, a1, a2)
result2 = self.vm.callSum1(a0, a1, a2)
self.assertEqual(result1, result2)
def testReimplementedModifiedVirtualMethod1(self):
'''Override of the virtual method with three arguments and
the last one changed to have the default value set to 1000.'''
a0, a1 = 2, 3
result0 = self.vm.sum1(a0, a1)
result1 = self.evm.callSum1(a0, a1, 1000)
self.assertEqual(result0 * self.evm.multiplier, result1)
self.assertTrue(self.evm.sum1_called)
def testModifiedVirtualMethod2(self):
'''Virtual method originally with three arguments, the last
one was removed and the default value set to 2000.'''
a0, a1 = 1, 2
result0 = self.vm.sum2(a0, a1)
self.assertEqual(result0, a0 + a1 + 2000)
result1 = self.vm.sum2(a0, a1)
result2 = self.vm.callSum2(a0, a1, 2000)
self.assertEqual(result1, result2)
self.assertRaises(TypeError, self.vm.sum2, 1, 2, 3)
def testReimplementedModifiedVirtualMethod2(self):
'''Override of the virtual method originally with three arguments,
the last one was removed and the default value set to 2000.'''
a0, a1 = 1, 2
ignored = 54321
result0 = self.vm.sum2(a0, a1)
result1 = self.evm.callSum2(a0, a1, ignored)
self.assertEqual(result0 * self.evm.multiplier, result1)
self.assertTrue(self.evm.sum2_called)
def testModifiedVirtualMethod3(self):
'''Virtual method originally with three arguments have the second
one removed and replaced by custom code that replaces it by the sum
of the first and the last arguments.'''
a0, a1 = 1, 2
result0 = self.vm.sum3(a0, a1)
self.assertEqual(result0, a0 + (a0 + a1) + a1)
result1 = self.vm.callSum3(a0, 10, a1)
self.assertNotEqual(result0, result1)
result2 = self.vm.callSum3(a0, a0 + a1, a1)
self.assertEqual(result0, result2)
self.assertRaises(TypeError, self.vm.sum3, 1, 2, 3)
def testReimplementedModifiedVirtualMethod3(self):
'''Override of the virtual method originally with three arguments
have the second one removed and replaced by custom code that
replaces it by the sum of the first and the last arguments.'''
a0, a1 = 1, 2
ignored = 54321
result0 = self.vm.sum3(a0, a1)
result1 = self.evm.callSum3(a0, ignored, a1)
self.assertEqual(result0 * self.evm.multiplier, result1)
self.assertTrue(self.evm.sum3_called)
def testModifiedVirtualMethod4(self):
'''Virtual method originally with three arguments, the
last one was removed and the default value set to 3000.'''
a0, a1 = 1, 2
default_value = 3000
result0 = self.vm.sum4(a0, a1)
self.assertEqual(result0, a0 + default_value + a1)
removed_arg_value = 100
result1 = self.vm.callSum4(a0, removed_arg_value, a1)
self.assertEqual(result1, a0 + removed_arg_value + a1)
self.assertRaises(TypeError, self.vm.sum4, 1, 2, 3)
def testReimplementedModifiedVirtualMethod4(self):
'''Override of the virtual method originally with three arguments,
the last one was removed and the default value set to 3000.
The method was modified with code injection on the binding override
(the one that receives calls from C++ with the original signature
and forwards it to Python overrides) that subtracts the value of the
second argument (removed in Python) from the value of the first
before sending them to Python.'''
a0, a1 = 1, 2
removed_arg_value = 2011
default_value = 3000
result = self.evm.callSum4(a0, removed_arg_value, a1)
self.assertEqual(result, (a0 - removed_arg_value + a1 + default_value) * self.evm.multiplier)
self.assertTrue(self.evm.sum4_called)
def testOverridenMethodResultModification(self):
'''Injected code modifies the result of a call to a virtual
method overridden in Python.'''
orig_name = self.vm.callName()
self.assertEqual(orig_name, 'VirtualMethods')
name = self.evm.callName()
self.assertEqual(name, 'PimpedExtendedVirtualMethods')
self.assertEqual(name, Str('PimpedExtendedVirtualMethods'))
self.assertTrue(self.evm.name_called)
def testInjectCodeCallsPythonVirtualMethodOverride(self):
'''When injected code calls the Python override by itself
no code for the method call should be generated.'''
self.evm.callCallMe()
self.assertEqual(self.evm.callMe_called, 1)
def testAllArgumentsRemoved(self):
values = (10, 20, 30, 40)
self.vm.setMargins(*values)
self.assertEqual(self.vm.getMargins(), values)
def testAllArgumentsRemovedCallVirtual(self):
values = (10, 20, 30, 40)
self.vm.setMargins(*values)
self.assertEqual(self.vm.callGetMargins(), values)
def testExtendedAllArgumentsRemoved(self):
values = (10, 20, 30, 40)
self.evm.setMargins(*values)
double = tuple([m*2 for m in values])
self.assertEqual(self.evm.getMargins(), double)
def testExtendedAllArgumentsRemovedCallVirtual(self):
values = (10, 20, 30, 40)
self.evm.setMargins(*values)
double = tuple([m*2 for m in values])
self.assertEqual(self.evm.callGetMargins(), double)
if __name__ == '__main__':
unittest.main()
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