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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
#############################################################################
##
## Copyright (C) 2021 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 gc
import os
import sys
import unittest
from pathlib import Path
sys.path.append(os.fspath(Path(__file__).resolve().parents[1]))
from shiboken_paths import init_paths
init_paths()
from copy import copy
from smart import Obj, Registry, Integer
def objCount():
return Registry.getInstance().countObjects()
def integerCount():
return Registry.getInstance().countIntegers()
class SmartPointerTests(unittest.TestCase):
def testObjSmartPointer(self):
# Uncomment to see more debug info about creation of objects and ref counts.
# Registry.getInstance().setShouldPrint(True)
# Create Obj.
o = Obj()
self.assertEqual(objCount(), 1)
# Create a shared pointer to an Obj together with an Obj.
ptrToObj = o.giveSharedPtrToObj()
self.assertEqual(objCount(), 2)
# Delete the old Obj.
o = None
self.assertEqual(objCount(), 1)
# Get a wrapper to the Obj inside of the shared pointer, object count should not change.
obj = ptrToObj.data()
self.assertEqual(objCount(), 1)
obj.m_integer = 50
self.assertEqual(obj.m_integer, 50)
# Set and get a member value via shared pointer (like operator->).
ptrToObj.m_integer = 100
self.assertEqual(ptrToObj.m_integer, 100)
# Get inner PyObject via shared pointer (like operator->) and set value in it.
ptrToObj.m_internalInteger.m_int = 200
self.assertEqual(ptrToObj.m_internalInteger.m_int, 200)
# Pass smart pointer as argument to a method, return value is the value of m_integer of
# passed Obj inside the smart pointer.
result = ptrToObj.takeSharedPtrToObj(ptrToObj)
self.assertEqual(result, 100)
# Pass an Integer as an argument that returns itself.
result = ptrToObj.takeInteger(ptrToObj.m_internalInteger)
self.assertEqual(integerCount(), 2)
result = None
if integerCount() > 1:
gc.collect()
print('Running garbage collector for reference test', file=sys.stderr)
self.assertEqual(integerCount(), 1)
# Make a copy of the shared pointer, object count should not change.
ptrToObj2 = copy(ptrToObj)
self.assertEqual(objCount(), 1)
# Delete the first shared pointer, object count should not change because the second
# one still has a reference.
del ptrToObj
# PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
gc.collect()
self.assertEqual(objCount(), 1)
# Delete the second smart pointer, object should be deleted.
del ptrToObj2
# PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
gc.collect()
self.assertEqual(objCount(), 0)
self.assertEqual(integerCount(), 0)
def testIntegerSmartPointer(self):
# Uncomment to see more debug info about creation of objects and ref counts.
# Registry.getInstance().setShouldPrint(True)
# Create Obj.
o = Obj()
self.assertEqual(objCount(), 1)
# Create a shared pointer to an Integer together with an Integer.
ptrToInteger = o.giveSharedPtrToInteger()
self.assertEqual(objCount(), 1)
self.assertEqual(integerCount(), 2)
# Get a wrapper to the Integer inside of the shared pointer, integer count should not
# change.
integer = ptrToInteger.data()
self.assertEqual(integerCount(), 2)
integer.m_int = 50
self.assertEqual(integer.m_int, 50)
# Set and get a member value via shared pointer (like operator->).
ptrToInteger.setValue(150)
self.assertEqual(ptrToInteger.value(), 150)
# Set and get a member field via shared pointer (like operator->).
ptrToInteger.m_int = 100
self.assertEqual(ptrToInteger.m_int, 100)
# Pass smart pointer as argument to a method, return value is the value of m_int of
# passed Integer inside the smart pointer.
result = o.takeSharedPtrToInteger(ptrToInteger)
self.assertEqual(result, 100)
# Make a copy of the shared pointer, integer count should not change.
ptrToInteger2 = copy(ptrToInteger)
self.assertEqual(integerCount(), 2)
# Delete the first shared pointer, integer count should not change because the second
# one still has a reference.
del ptrToInteger
# PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
gc.collect()
self.assertEqual(integerCount(), 2)
# Delete the second smart pointer, integer should be deleted.
del ptrToInteger2
# PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
gc.collect()
self.assertEqual(objCount(), 1)
self.assertEqual(integerCount(), 1)
# Delete the original object which was used to create the integer.
del o
# PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
gc.collect()
self.assertEqual(objCount(), 0)
self.assertEqual(integerCount(), 0)
def testConstIntegerSmartPointer(self):
# Uncomment to see more debug info about creation of objects and ref counts.
# Registry.getInstance().setShouldPrint(True)
# Create Obj.
o = Obj()
ptrToConstInteger = o.giveSharedPtrToConstInteger()
self.assertEqual(ptrToConstInteger.m_int, 456)
result = o.takeSharedPtrToConstInteger(ptrToConstInteger)
self.assertEqual(result, 456)
self.assertEqual(ptrToConstInteger.value(), 456)
def testSmartPointersWithNamespace(self):
# Create the main object
o = Obj()
self.assertEqual(objCount(), 1)
# Create a shared pointer to an Integer together with an Integer.
ptrToInteger = o.giveSharedPtrToInteger2()
self.assertEqual(objCount(), 1)
self.assertEqual(integerCount(), 2)
integer = ptrToInteger.data()
self.assertTrue(integer)
def testListOfSmartPointers(self):
# Create the main object
o = Obj()
# Create a list of shared objects
ptrToObjList = o.giveSharedPtrToObjList(10)
self.assertEqual(len(ptrToObjList), 10)
self.assertEqual(objCount(), 11)
# Remove one from the list
ptrToObjList.pop()
self.assertEqual(len(ptrToObjList), 9)
self.assertEqual(objCount(), 10)
# clear and delete all objects in the list
del ptrToObjList[:] # Python 2.7 lists have no clear method
# PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
gc.collect()
self.assertEqual(len(ptrToObjList), 0)
self.assertEqual(objCount(), 1)
def testInvalidParameter(self):
# Create Obj.
o = Obj()
# Create a shared pointer to an Obj together with an Obj.
ptrToObj = o.giveSharedPtrToObj()
try:
ptrToObj.typo
self.assertFail()
except AttributeError as error:
self.assertEqual(error.args[0], "'smart.SharedPtr_Obj' object has no attribute 'typo'")
def testSmartPointerConversions(self):
# Create Obj.
o = Obj()
self.assertEqual(objCount(), 1)
self.assertEqual(integerCount(), 1)
# Create a shared pointer to an Integer2
integer2 = o.giveSharedPtrToInteger2()
self.assertEqual(integer2.value(), 456)
# pass Smart<Integer2> to a function that accepts Smart<Integer>
r = o.takeSharedPtrToInteger(integer2)
self.assertEqual(r, integer2.value())
if __name__ == '__main__':
unittest.main()
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