1 files changed, 97 insertions, 0 deletions
diff --git a/sources/pyside6/tests/QtWidgets/qmainwindow_test.py b/sources/pyside6/tests/QtWidgets/qmainwindow_test.py
new file mode 100644
index 000000000..2f245c8ff
--- /dev/null
+++ b/sources/pyside6/tests/QtWidgets/qmainwindow_test.py
@@ -0,0 +1,97 @@
+# 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 QTimer
+from PySide6.QtWidgets import QMainWindow, QPushButton, QToolButton, QWidget
+from helper.usesqapplication import UsesQApplication
+
+
+class MainWindow(QMainWindow):
+    def __init__(self):
+        super().__init__()
+
+        self.createToolbar()
+
+    def createToolbar(self):
+        pointerButton = QToolButton()
+        pointerToolbar = self.addToolBar("Pointer type")
+        pointerToolbar.addWidget(pointerButton)
+
+
+class MyButton(QPushButton):
+    def __init__(self, parent=None):
+        super().__init__()
+        self._called = False
+
+    def myCallback(self):
+        self._called = True
+
+
+class TestMainWindow(UsesQApplication):
+
+    def testCreateToolbar(self):
+        w = MainWindow()
+        w.show()
+        QTimer.singleShot(1000, self.app.quit)
+        self.app.exec()
+
+    def objDel(self, obj):
+        self.app.quit()
+
+    @unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount")
+    def testRefCountToNull(self):
+        w = QMainWindow()
+        c = QWidget()
+        self.assertEqual(sys.getrefcount(c), 2)
+        w.setCentralWidget(c)
+        self.assertEqual(sys.getrefcount(c), 3)
+        wr = weakref.ref(c, self.objDel)
+        w.setCentralWidget(None)
+        c = None
+        self.app.exec()
+
+    @unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount")
+    def testRefCountToAnother(self):
+        w = QMainWindow()
+        c = QWidget()
+        self.assertEqual(sys.getrefcount(c), 2)
+        w.setCentralWidget(c)
+        self.assertEqual(sys.getrefcount(c), 3)
+
+        c2 = QWidget()
+        w.setCentralWidget(c2)
+        self.assertEqual(sys.getrefcount(c2), 3)
+
+        wr = weakref.ref(c, self.objDel)
+        w.setCentralWidget(None)
+        c = None
+
+        self.app.exec()
+
+    def testSignalDisconect(self):
+        w = QMainWindow()
+        b = MyButton("button")
+        b.clicked.connect(b.myCallback)
+        w.setCentralWidget(b)
+
+        b = MyButton("button")
+        b.clicked.connect(b.myCallback)
+        w.setCentralWidget(b)
+
+        b.click()
+        self.assertEqual(b._called, True)
+
+
+if __name__ == '__main__':
+    unittest.main()
+