1 files changed, 52 insertions, 0 deletions
diff --git a/sources/pyside6/tests/QtWidgets/qdialog_test.py b/sources/pyside6/tests/QtWidgets/qdialog_test.py
new file mode 100644
index 000000000..cb85ce7e2
--- /dev/null
+++ b/sources/pyside6/tests/QtWidgets/qdialog_test.py
@@ -0,0 +1,52 @@
+# 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
+import weakref
+
+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 Slot, QTimer
+from PySide6.QtWidgets import QDialog, QMainWindow
+from helper.timedqapplication import TimedQApplication
+
+
+class Window(QMainWindow):
+    def __init__(self):
+        super().__init__()
+        self.setWindowTitle("Main")
+        self.dialog = None
+
+    @Slot()
+    def execDialog(self):
+        dialog = QDialog(self)
+        self.dialog = weakref.ref(dialog)
+        dialog.setWindowTitle("Dialog")
+        dialog.setMinimumWidth(200)
+        QTimer.singleShot(500, dialog.reject)
+        dialog.exec()
+        self.close()
+
+
+class DialogExecTest(TimedQApplication):
+    """Test whether the parent-child relationship (dialog/main window) is removed when
+       using QDialog.exec() (instead show()), preventing the dialog from leaking."""
+
+    def setUp(self):
+        super().setUp(10000)
+        self._window = Window()
+
+    def testExec(self):
+        self._window.show()
+        QTimer.singleShot(500, self._window.execDialog)
+        self.app.exec()
+        self.assertTrue(self._window.dialog() is None)
+
+
+if __name__ == '__main__':
+    unittest.main()