1 files changed, 83 insertions, 0 deletions
diff --git a/sources/pyside6/tests/signals/static_metaobject_test.py b/sources/pyside6/tests/signals/static_metaobject_test.py
new file mode 100644
index 000000000..d7bf73e44
--- /dev/null
+++ b/sources/pyside6/tests/signals/static_metaobject_test.py
@@ -0,0 +1,83 @@
+#!/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 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 QObject, Signal, Slot, SIGNAL
+from helper.usesqapplication import UsesQApplication
+
+
+class Sender(QObject):
+
+    foo = Signal()
+    foo2 = Signal()
+
+
+class MyObject(QObject):
+
+    foo2 = Signal()
+
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self._slotCalledCount = 0
+
+    # this '@Slot()' is needed to get the right sort order in testSharedSignalEmission.
+    # For some reason, it also makes the tests actually work!
+    @Slot()
+    def mySlot(self):
+        self._slotCalledCount = self._slotCalledCount + 1
+
+
+class StaticMetaObjectTest(UsesQApplication):
+
+    def testSignalPropagation(self):
+        """Old style, dynamic signal creation."""
+        o = QObject()
+        o2 = MyObject()
+
+        # SIGNAL foo not created yet
+        self.assertEqual(o.metaObject().indexOfSignal("foo()"), -1)
+
+        o.connect(SIGNAL("foo()"), o2.mySlot)
+        # SIGNAL foo create after connect
+        self.assertTrue(o.metaObject().indexOfSignal("foo()") > 0)
+
+        # SIGNAL does not propagate to others objects of the same type
+        self.assertEqual(o2.metaObject().indexOfSignal("foo()"), -1)
+
+        del o
+        del o2
+        # PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
+        gc.collect()
+        o = MyObject()
+        # The SIGNAL was destroyed with old objects
+        self.assertEqual(o.metaObject().indexOfSignal("foo()"), -1)
+
+    def testSharedSignalEmission(self):
+        o = Sender()
+        m = MyObject()
+
+        o.foo2.connect(m.mySlot)
+        m.foo2.connect(m.mySlot)
+        o.foo2.emit()
+        self.assertEqual(m._slotCalledCount, 1)
+        del o
+        # PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
+        gc.collect()
+        m.foo2.emit()
+        self.assertEqual(m._slotCalledCount, 2)
+
+
+if __name__ == '__main__':
+    unittest.main()