1 files changed, 58 insertions, 0 deletions
diff --git a/sources/pyside6/tests/pysidetest/true_property_test.py b/sources/pyside6/tests/pysidetest/true_property_test.py
new file mode 100644
index 000000000..62f6505dc
--- /dev/null
+++ b/sources/pyside6/tests/pysidetest/true_property_test.py
@@ -0,0 +1,58 @@
+# 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)
+
+"""
+PYSIDE-2042: Tests true_property with inheritance
+"""
+is_pypy = hasattr(sys, "pypy_version_info")
+
+from PySide6.QtCore import QSize
+from PySide6.QtWidgets import QWidget, QSpinBox
+if not is_pypy:
+    from __feature__ import true_property
+from helper.usesqapplication import UsesQApplication
+
+
+@unittest.skipIf(is_pypy, "__feature__ cannot yet be used with PyPy")
+class TruePropertyInheritanceTest(UsesQApplication):
+
+    def testTrueProperty(self):
+        # this worked
+        widget = QWidget()
+        check = widget.sizeHint
+        self.assertEqual(type(check), QSize)
+
+        # PYSIDE-2042: inheritance did not work
+        spin_box = QSpinBox()
+        check = spin_box.sizeHint
+        self.assertEqual(type(check), QSize)
+
+    def testHiddenMethods(self):
+        # PYSIDE-1889: setVisible is no longer a meta function but comes from the Property
+        widget = QWidget()
+        self.assertTrue("visible" in QWidget.__dict__)
+        self.assertFalse("isVisible" in QWidget.__dict__)
+        self.assertFalse("setVisible" in QWidget.__dict__)
+        self.assertTrue(hasattr(widget, "isVisible"))
+        self.assertTrue(hasattr(widget, "setVisible"))
+        self.assertEqual(widget.isVisible, QWidget.visible.fget)
+        self.assertEqual(widget.setVisible, QWidget.visible.fset)
+
+        # This works with inheritance as well:
+        class SubClass(QWidget):
+            pass
+        sub_widget = SubClass()
+        self.assertEqual(sub_widget.isVisible, QWidget.visible.fget)
+
+
+if __name__ == '__main__':
+    unittest.main()