1 files changed, 54 insertions, 0 deletions
diff --git a/sources/pyside6/tests/signals/bug_311.py b/sources/pyside6/tests/signals/bug_311.py
new file mode 100644
index 000000000..e27476172
--- /dev/null
+++ b/sources/pyside6/tests/signals/bug_311.py
@@ -0,0 +1,54 @@
+#!/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
+
+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 QDate, QObject, Signal
+from helper.usesqapplication import UsesQApplication
+
+
+class DerivedDate(QDate):
+    def __init__(self, y, m, d):
+        super().__init__(y, m, d)
+
+
+class Emitter(QObject):
+    dateSignal1 = Signal(QDate)
+    dateSignal2 = Signal(DerivedDate)
+    tupleSignal = Signal(tuple)
+
+
+class SignaltoSignalTest(UsesQApplication):
+    def myCb(self, dt):
+        self._dt = dt
+
+    def testBug(self):
+        e = Emitter()
+        d = DerivedDate(2010, 8, 24)
+        self._dt = None
+        e.dateSignal1.connect(self.myCb)
+        e.dateSignal1.emit(d)
+        self.assertEqual(self._dt, d)
+
+        self._dt = None
+        e.dateSignal2.connect(self.myCb)
+        e.dateSignal2.emit(d)
+        self.assertEqual(self._dt, d)
+
+        myTuple = (5, 6, 7)
+        self._dt = None
+        e.tupleSignal.connect(self.myCb)
+        e.tupleSignal.emit(myTuple)
+        self.assertEqual(myTuple, self._dt)
+
+
+if __name__ == '__main__':
+    unittest.main()