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diff --git a/sources/pyside6/tests/QtWidgets/qapp_issue_585.py b/sources/pyside6/tests/QtWidgets/qapp_issue_585.py
new file mode 100644
index 000000000..0b5453af5
--- /dev/null
+++ b/sources/pyside6/tests/QtWidgets/qapp_issue_585.py
@@ -0,0 +1,53 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+"""
+The bug was caused by this commit:
+"Support the qApp macro correctly, final version incl. debug"
+e30e0c161b2b4d50484314bf006e9e5e8ff6b380
+2017-10-27
+
+The bug was first solved by this commit:
+"Fix qApp macro refcount"
+b811c874dedd14fd8b072bc73761d39255216073
+2018-03-21
+
+This test triggers the refcounting bug of qApp, issue PYSIDE-585.
+Finally, the real patch included more changes, because another error
+was in the ordering of shutdown calls. It was found using the following
+Python configuration:
+
+    In Python 3.6 create a directory 'debug' and cd into it.
+
+    ../configure --with-pydebug --prefix=$HOME/pydebug/ --enable-shared
+
+Then a lot more refcounting errors show up, which are due to a bug in
+the code position of the shutdown procedure.
+The reason for the initial refcount bug was that the shutdown code is once
+more often called than the creation of the qApp wrapper.
+Finally, it was easiest and more intuitive to simply make the refcount of
+qApp_content equal to that of Py_None, which is also not supposed to be
+garbage-collected.
+
+For some reason, the test does not work as a unittest because it creates
+no crash. We leave it this way.
+"""
+
+import os
+import sys
+
+from pathlib import Path
+sys.path.append(os.fspath(Path(__file__).resolve().parents[1]))
+sys.path.append(os.fspath(Path(__file__).resolve().parents[1] / "util"))
+from init_paths import init_test_paths
+init_test_paths()
+
+from PySide6.QtCore import QTimer
+from PySide6.QtWidgets import QApplication
+
+
+app_instance = QApplication([])
+# If the following line is commented, application doesn't crash on exit anymore.
+app_instance2 = app_instance
+QTimer.singleShot(0, qApp.quit)
+app_instance.exec_()