1 files changed, 78 insertions, 0 deletions
diff --git a/sources/pyside6/tests/QtCore/destroysignal_test.py b/sources/pyside6/tests/QtCore/destroysignal_test.py
new file mode 100644
index 000000000..ad087b489
--- /dev/null
+++ b/sources/pyside6/tests/QtCore/destroysignal_test.py
@@ -0,0 +1,78 @@
+# 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 QTimer, QObject, Signal
+
+
+class TestDestroySignal(unittest.TestCase):
+    def onObjectDestroyed(self, timer):
+        self.assertTrue(isinstance(timer, QObject))
+        self._destroyed = True
+
+    def testSignal(self):
+        self._destroyed = False
+        t = QTimer()
+        t.destroyed[QObject].connect(self.onObjectDestroyed)
+        del t
+        # PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
+        gc.collect()
+        # PYSIDE-535: Why do I need to do it twice, here?
+        gc.collect()
+        self.assertTrue(self._destroyed)
+
+    def testWithParent(self):
+        self._destroyed = False
+        p = QTimer()
+        t = QTimer(p)
+        t.destroyed[QObject].connect(self.onObjectDestroyed)
+        del p
+        # PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
+        gc.collect()
+        # PYSIDE-535: Why do I need to do it twice, here?
+        gc.collect()
+        self.assertTrue(self._destroyed)
+
+
+class Foo(QObject):
+    s = Signal(int)
+
+    def __init__(self):
+        QObject.__init__(self)
+        sys.stderr.write(f"__init__ {id(self):x}\n")
+
+    def __del__(self):
+        sys.stderr.write(f"__del__  {id(self):x}\n")
+
+    def send(self, i):
+        self.s.emit(i)
+
+
+# PYSIDE-2201/2328: This crashed until we introduced a weak reference.
+class TestDestroyNoConnect(unittest.TestCase):
+
+    def testSignalDestroyedMissingReference(self):
+        # This works since it has one reference more to Foo
+        Foo().send(43)
+        # This crashed because we have no reference in the signal.
+        with self.assertRaises(RuntimeError):
+            Foo().s.emit(44)
+
+    def testSignalDestroyedinConnect(self):
+        # PYSIDE-2328: Connect to signal of temporary
+        with self.assertRaises(RuntimeError):
+            Foo().s.connect(None)
+
+
+if __name__ == '__main__':
+    unittest.main()
+