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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
from functools import partial
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, QProcess
from helper.basicpyslotcase import BasicPySlotCase
from helper.usesqapplication import UsesQApplication
class MultipleSignalConnections(unittest.TestCase):
'''Base class for multiple signal connection testing'''
def run_many(self, signal, emitter, receivers, args=None):
"""Utility method to connect a list of receivers to a signal.
sender - QObject that will emit the signal
signal - string with the signal signature
emitter - the callable that will trigger the signal
receivers - list of BasicPySlotCase instances
args - tuple with the arguments to be sent.
"""
if args is None:
args = tuple()
for rec in receivers:
rec.setUp()
self.assertTrue(signal.connect(rec.cb))
rec.args = tuple(args)
emitter(*args)
for rec in receivers:
self.assertTrue(rec.called)
class PythonMultipleSlots(UsesQApplication, MultipleSignalConnections):
'''Multiple connections to python signals'''
def testPythonSignal(self):
"""Multiple connections to a python signal (short-circuit)"""
class Sender(QObject):
foobar = Signal(int)
sender = Sender()
receivers = [BasicPySlotCase() for x in range(10)]
self.run_many(sender.foobar, partial(sender.foobar.emit),
receivers, (0, ))
class QProcessMultipleSlots(UsesQApplication, MultipleSignalConnections):
'''Multiple connections to QProcess signals'''
def testQProcessStarted(self):
'''Multiple connections to QProcess.started()'''
sender = QProcess()
receivers = [BasicPySlotCase() for x in range(10)]
def start_proc(*args):
sender.start(sys.executable, ['-c', '""'])
self.assertTrue(sender.waitForStarted())
self.assertTrue(sender.waitForFinished())
self.run_many(sender.started, start_proc, receivers)
def testQProcessFinished(self):
'''Multiple connections to QProcess.finished(int)'''
sender = QProcess()
receivers = [BasicPySlotCase() for x in range(10)]
def start_proc(*args):
sender.start(sys.executable, ['-c', '""'])
self.assertTrue(sender.waitForStarted())
self.assertTrue(sender.waitForFinished())
self.run_many(sender.finished, start_proc, receivers, (0, QProcess.ExitStatus.NormalExit))
if __name__ == '__main__':
unittest.main()
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