Clean up QtWidgets tests

Many QtWidgets tests do not require classes from QtWidgets any
more due to splitting out the QtGui module and moving further
classes into it. Move the tests to the proper module.

As a drive by, move some misplaced tests from QtGui into QtCore or
QtWidgets, respectively.

Change-Id: Ib995ce6556fceff4eb8ec8ac9b25680834a2426f
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Christian Tismer <tismer@stackless.com>
(cherry picked from commit 07029c25e460838d1bb2942326e69aa1916baa6f)

1 files changed, 76 insertions, 0 deletions

diff --git a/sources/pyside6/tests/QtGui/event_filter_test.py b/sources/pyside6/tests/QtGui/event_filter_test.py
new file mode 100644
index 000000000..a64386e12
--- /dev/null
+++ b/sources/pyside6/tests/QtGui/event_filter_test.py
@@ -0,0 +1,76 @@
+#############################################################################
+##
+## Copyright (C) 2016 The Qt Company Ltd.
+## Contact: https://www.qt.io/licensing/
+##
+## This file is part of the test suite of Qt for Python.
+##
+## $QT_BEGIN_LICENSE:GPL-EXCEPT$
+## Commercial License Usage
+## Licensees holding valid commercial Qt licenses may use this file in
+## accordance with the commercial license agreement provided with the
+## Software or, alternatively, in accordance with the terms contained in
+## a written agreement between you and The Qt Company. For licensing terms
+## and conditions see https://www.qt.io/terms-conditions. For further
+## information use the contact form at https://www.qt.io/contact-us.
+##
+## GNU General Public License Usage
+## Alternatively, this file may be used under the terms of the GNU
+## General Public License version 3 as published by the Free Software
+## Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+## included in the packaging of this file. Please review the following
+## information to ensure the GNU General Public License requirements will
+## be met: https://www.gnu.org/licenses/gpl-3.0.html.
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+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 helper.usesqguiapplication import UsesQGuiApplication
+from PySide6.QtCore import QObject, QEvent
+from PySide6.QtGui import QWindow
+
+
+class MyFilter(QObject):
+    def eventFilter(self, obj, event):
+        if event.type() == QEvent.KeyPress:
+            pass
+        return QObject.eventFilter(self, obj, event)
+
+
+class EventFilter(UsesQGuiApplication):
+    @unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount")
+    def testRefCount(self):
+        o = QObject()
+        filt = MyFilter()
+        o.installEventFilter(filt)
+        self.assertEqual(sys.getrefcount(o), 2)
+
+        o.installEventFilter(filt)
+        self.assertEqual(sys.getrefcount(o), 2)
+
+        o.removeEventFilter(filt)
+        self.assertEqual(sys.getrefcount(o), 2)
+
+    def testObjectDestructorOrder(self):
+        w = QWindow()
+        filt = MyFilter()
+        filt.app = self.app
+        w.installEventFilter(filt)
+        w.show()
+        w.close()
+        w = None
+        self.assertTrue(True)
+
+
+if __name__ == '__main__':
+    unittest.main()