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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
import gc
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
class Sender(QObject):
"""Sender class used in this test."""
foo = Signal()
foo_int = Signal(int)
foo_int_int_string = Signal(int, int, str)
foo_int_qobject = Signal(int, QObject)
def __init__(self, parent=None):
QObject.__init__(self, parent)
class ShortCircuitSignals(unittest.TestCase):
def setUp(self):
self.called = False
def tearDown(self):
try:
del self.args
except: # noqa: E722
pass
# PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
gc.collect()
def callback(self, *args):
if tuple(self.args) == args:
self.called = True
def testNoArgs(self):
"""Short circuit signal without arguments"""
obj1 = Sender()
obj1.foo.connect(self.callback)
self.args = tuple()
obj1.foo.emit(*self.args)
self.assertTrue(self.called)
def testWithArgs(self):
"""Short circuit signal with integer arguments"""
obj1 = Sender()
obj1.foo_int.connect(self.callback)
self.args = (42,)
obj1.foo_int.emit(*self.args)
self.assertTrue(self.called)
def testMultipleArgs(self):
"""Short circuit signal with multiple arguments"""
obj1 = Sender()
obj1.foo_int_int_string.connect(self.callback)
self.args = (42, 33, 'char')
obj1.foo_int_int_string.emit(*self.args)
self.assertTrue(self.called)
def testComplexArgs(self):
"""Short circuit signal with complex arguments"""
obj1 = Sender()
obj1.foo_int_qobject.connect(self.callback)
self.args = (42, obj1)
obj1.foo_int_qobject.emit(*self.args)
self.assertTrue(self.called)
if __name__ == '__main__':
unittest.main()
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