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# Copyright (C) 2023 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
import os
import sys
import unittest
from pathlib import Path
sys.path.append(os.fspath(Path(__file__).resolve().parents[1]))
from init_paths import init_test_paths
init_test_paths(False)
from helper.usesqapplication import UsesQApplication
from PySide6 import QtCore, QtGui, QtWidgets
from PySide6.QtWidgets import QMainWindow, QLabel
def xprint(*args, **kw):
if "-v" in sys.argv:
print(*args, **kw)
# This is the original testcase of PYSIDE-1564
class Age(object):
def __init__(self, age=0, **kwds):
super().__init__(**kwds)
self.age = age
class Person(QtCore.QObject, Age):
def __init__(self, name, **kwds):
super().__init__(**kwds)
self.name = name
class OriginalMultipleInheritanceTest(unittest.TestCase):
def testIt(self):
xprint()
p = Person("Joe", age=38)
xprint(f"p.age = {p.age}")
# This would crash if MI does not work.
# More tests follow:
# mro ('C', 'A', 'QObject', 'Object', 'B', 'object')
class A(QtCore.QObject):
def __init__(self, anna=77, **kw):
xprint(f'A: before init kw = {kw}')
super().__init__(**kw)
xprint('A: after init')
class B:
def __init__(self, otto=6, age=7, **kw):
xprint(f'B: before init kw = {kw}')
if "killme" in kw:
raise AssertionError("asdf")
super().__init__(**kw)
self.age = age
xprint('B: after init')
class C(A, B):
def __init__(self, **kw):
xprint(f'C: before init kw = {kw}')
super().__init__(**kw)
xprint('C: after init')
# mro ('F', 'D', 'QCursor', 'E', 'QLabel', 'QFrame', 'QWidget', 'QObject', 'QPaintDevice', 'Object', 'object')
class D(QtGui.QCursor):
def __init__(self, anna=77, **kw):
xprint(f'D: before init kw = {kw}')
super().__init__(**kw)
xprint('D: after init')
class E:
def __init__(self, age=7, **kw):
xprint(f'E: before init kw = {kw}')
super().__init__(**kw)
self.age = age
xprint('E: after init')
class F(D, E, QtWidgets.QLabel):
def __init__(self, **kw):
xprint(f'F: before init kw = {kw}')
super().__init__(**kw)
xprint('F: after init')
# mro ('I', 'G', 'QTextDocument', 'H', 'QLabel', 'QFrame', 'QWidget', 'QObject', 'QPaintDevice', 'Object', 'object')
# Similar, but this time we want to reach `H` without support from `super`.
class G(QtGui.QTextDocument):
pass
class H:
def __init__(self, age=7, **kw):
xprint(f'H: before init kw = {kw}')
super().__init__(**kw)
self.age = age
xprint('H: after init')
class I(G, H, QtWidgets.QLabel):
pass
# PYSIDE-2294: Friedemann's test adapted.
# We need to ignore positional args in mixin classes.
class Ui_X_MainWindow(object): # Emulating uic
def setupUi(self, MainWindow):
MainWindow.resize(400, 300)
self.lbl = QLabel(self)
class MainWindow(QMainWindow, Ui_X_MainWindow):
def __init__(self, parent=None):
super().__init__(parent)
self.setupUi(self)
class AdditionalMultipleInheritanceTest(UsesQApplication):
def testABC(self):
xprint()
res = C(otto=3, anna=5)
self.assertEqual(res.age, 7)
xprint()
with self.assertRaises(AssertionError):
res = C(killme=42)
xprint()
def testDEF(self):
xprint()
res = F(anna=5)
self.assertEqual(res.age, 7)
xprint()
def testGHI(self):
xprint()
res = I(age=7)
self.assertEqual(res.age, 7)
xprint()
def testParentDoesNotCrash(self):
# This crashed with
# TypeError: object.__init__() takes exactly one argument (the instance to initialize)
MainWindow()
if __name__ == "__main__":
unittest.main()
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