1 files changed, 142 insertions, 0 deletions
diff --git a/sources/pyside6/tests/signals/signal_emission_test.py b/sources/pyside6/tests/signals/signal_emission_test.py
new file mode 100644
index 000000000..b31d89c2f
--- /dev/null
+++ b/sources/pyside6/tests/signals/signal_emission_test.py
@@ -0,0 +1,142 @@
+#!/usr/bin/env python
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+"""Tests covering signal emission and receiving to python slots"""
+
+import functools
+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, QProcess, QTimeLine
+
+from helper.usesqapplication import UsesQApplication
+
+
+class ArgsOnEmptySignal(UsesQApplication):
+    '''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.started.emit, 42)
+
+
+class MoreArgsOnEmit(UsesQApplication):
+    '''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.finished.emit, 55, QProcess.ExitStatus.NormalExit, 42)
+
+
+class Sender(QObject):
+    '''Sender class'''
+
+    dummy = Signal()
+    dummy_int = Signal(int)
+
+
+class PythonSignalToCppSlots(UsesQApplication):
+    '''Connect python signals to C++ slots'''
+
+    def testWithoutArgs(self):
+        '''Connect python signal to QTimeLine.toggleDirection()'''
+        timeline = QTimeLine()
+        sender = Sender()
+        sender.dummy.connect(timeline.toggleDirection)
+
+        orig_dir = timeline.direction()
+        sender.dummy.emit()
+        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()
+        sender = Sender()
+
+        sender.dummy_int.connect(timeline.setCurrentTime)
+
+        current = timeline.currentTime()
+        sender.dummy_int.emit(current + 42)
+        self.assertEqual(timeline.currentTime(), current + 42)
+
+
+class CppSignalsToCppSlots(UsesQApplication):
+    '''Connection between C++ slots and signals'''
+
+    def testWithoutArgs(self):
+        '''Connect QProcess.started() to QTimeLine.togglePaused()'''
+        process = QProcess()
+        timeline = QTimeLine()
+
+        process.finished.connect(timeline.toggleDirection)
+
+        orig_dir = timeline.direction()
+
+        process.start(sys.executable, ['-c', '"print 42"'])
+        self.assertTrue(process.waitForStarted())
+        self.assertTrue(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(UsesQApplication):
+
+    def testIt(self):
+        global called
+        called = False
+        o = Sender()
+        o.dummy.connect(functools.partial(someSlot, "partial .."))
+        o.dummy.emit()
+        self.assertTrue(called)
+
+
+class EmitUnknownType(UsesQApplication):
+    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(UsesQApplication):
+    """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()