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+#!/usr/bin/env python
+
+#############################################################################
+##
+## Copyright (C) 2016 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.
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+"""Tests covering signal emission and receiving to python slots"""
+
+import functools
+import os
+import sys
+import unittest
+
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+from init_paths import init_test_paths
+init_test_paths(False)
+
+from PySide6.QtCore import QObject, SIGNAL, SLOT, QProcess, QTimeLine
+
+from helper.basicpyslotcase import BasicPySlotCase
+from helper.usesqcoreapplication import UsesQCoreApplication
+
+
+class ArgsOnEmptySignal(UsesQCoreApplication):
+ '''Trying to emit a signal without arguments passing some arguments'''
+
+ def testArgsToNoArgsSignal(self):
+ '''Passing arguments to a signal without arguments'''
+ process = QProcess()
+ self.assertRaises(TypeError, process.emit, SIGNAL('started()'), 42)
+
+
+class MoreArgsOnEmit(UsesQCoreApplication):
+ '''Trying to pass more args than needed to emit (signals with args)'''
+
+ def testMoreArgs(self):
+ '''Passing more arguments than needed'''
+ process = QProcess()
+ self.assertRaises(TypeError, process.emit, SIGNAL('finished(int)'), 55, 55)
+
+class Dummy(QObject):
+ '''Dummy class'''
+ pass
+
+class PythonSignalToCppSlots(UsesQCoreApplication):
+ '''Connect python signals to C++ slots'''
+
+ def testWithoutArgs(self):
+ '''Connect python signal to QTimeLine.toggleDirection()'''
+ timeline = QTimeLine()
+ dummy = Dummy()
+ QObject.connect(dummy, SIGNAL('dummy()'),
+ timeline, SLOT('toggleDirection()'))
+
+ orig_dir = timeline.direction()
+ dummy.emit(SIGNAL('dummy()'))
+ new_dir = timeline.direction()
+
+ if orig_dir == QTimeLine.Forward:
+ self.assertEqual(new_dir, QTimeLine.Backward)
+ else:
+ self.assertEqual(new_dir, QTimeLine.Forward)
+
+ def testWithArgs(self):
+ '''Connect python signals to QTimeLine.setCurrentTime(int)'''
+ timeline = QTimeLine()
+ dummy = Dummy()
+
+ QObject.connect(dummy, SIGNAL('dummy(int)'),
+ timeline, SLOT('setCurrentTime(int)'))
+
+ current = timeline.currentTime()
+ dummy.emit(SIGNAL('dummy(int)'), current+42)
+ self.assertEqual(timeline.currentTime(), current+42)
+
+class CppSignalsToCppSlots(UsesQCoreApplication):
+ '''Connection between C++ slots and signals'''
+
+ def testWithoutArgs(self):
+ '''Connect QProcess.started() to QTimeLine.togglePaused()'''
+ process = QProcess()
+ timeline = QTimeLine()
+
+ QObject.connect(process, SIGNAL('finished(int, QProcess::ExitStatus)'),
+ timeline, SLOT('toggleDirection()'))
+
+ orig_dir = timeline.direction()
+
+ process.start(sys.executable, ['-c', '"print 42"'])
+ process.waitForFinished()
+
+ new_dir = timeline.direction()
+
+ if orig_dir == QTimeLine.Forward:
+ self.assertEqual(new_dir, QTimeLine.Backward)
+ else:
+ self.assertEqual(new_dir, QTimeLine.Forward)
+
+called = False
+def someSlot(args=None):
+ global called
+ called = True
+
+class DynamicSignalsToFuncPartial(UsesQCoreApplication):
+
+ def testIt(self):
+ global called
+ called = False
+ o = QObject()
+ o.connect(o, SIGNAL("ASignal()"), functools.partial(someSlot, "partial .."))
+ o.emit(SIGNAL("ASignal()"))
+ self.assertTrue(called)
+
+class EmitUnknownType(UsesQCoreApplication):
+ def testIt(self):
+ a = QObject()
+ a.connect(SIGNAL('foobar(Dummy)'), lambda x: 42) # Just connect with an unknown type
+ self.assertRaises(TypeError, a.emit, SIGNAL('foobar(Dummy)'), 22)
+
+class EmitEnum(UsesQCoreApplication):
+ """Test emission of enum arguments"""
+
+ def slot(self, arg):
+ self.arg = arg
+
+ def testIt(self):
+ self.arg = None
+ p = QProcess()
+ p.stateChanged.connect(self.slot)
+ p.stateChanged.emit(QProcess.NotRunning)
+ self.assertEqual(self.arg, QProcess.NotRunning)
+
+if __name__ == '__main__':
+ unittest.main()