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# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
'''Test case for signal signature received by QObject::connectNotify().'''
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 PySide6.QtCore import QObject, Signal, SIGNAL, SLOT
from helper.usesqapplication import UsesQApplication
called = False
name = "Old"
class Sender(QObject):
dummySignal = Signal()
class Obj(QObject):
dummySignalArgs = Signal(str)
numberSignal = Signal(int)
def __init__(self):
super().__init__()
self.signal = ''
def connectNotify(self, signal):
self.signal = signal
@staticmethod
def static_method():
global called
called = True
@staticmethod
def static_method_args(arg="default"):
global name
name = arg
def callback(arg=None):
pass
def callback_empty():
pass
class TestConnectNotifyWithNewStyleSignals(UsesQApplication):
'''Test case for signal signature received by QObject::connectNotify().'''
def testOldStyle(self):
sender = Obj()
receiver = QObject()
sender.connect(SIGNAL('destroyed()'), receiver, SLOT('deleteLater()'))
# When connecting to a regular slot, and not a python callback function, QObject::connect
# will use the non-cloned method signature, so connectinc to destroyed() will actually
# connect to destroyed(QObject*).
self.assertEqual(sender.signal.methodSignature(), 'destroyed(QObject*)')
def testOldStyleWithPythonCallback(self):
sender = Obj()
sender.connect(SIGNAL('destroyed()'), callback)
self.assertEqual(sender.signal.methodSignature(), 'destroyed()')
def testNewStyle(self):
sender = Obj()
sender.destroyed.connect(callback_empty)
self.assertEqual(sender.signal.methodSignature(), 'destroyed()')
sender.destroyed[QObject].connect(callback)
self.assertEqual(sender.signal.methodSignature(), 'destroyed(QObject*)')
def testStaticSlot(self):
global called
sender = Sender()
sender.dummySignal.connect(Obj.static_method)
sender.dummySignal.emit()
self.assertTrue(called)
def testStaticSlotArgs(self):
global name
sender = Obj()
sender.dummySignalArgs.connect(Obj.static_method_args)
sender.dummySignalArgs[str].emit("New")
self.assertEqual(name, "New")
def testLambdaSlot(self):
sender = Obj()
sender.numberSignal[int].connect(lambda x: 42)
with self.assertRaises(IndexError):
sender.numberSignal[str].emit("test")
if __name__ == '__main__':
unittest.main()
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