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# 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)
from PySide6.QtCore import QObject, QTimer, Qt
from PySide6.QtWidgets import QListWidget, QListWidgetItem
from helper.usesqapplication import UsesQApplication
class QListWidgetTest(UsesQApplication):
@unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount")
def populateList(self, lst):
o = QObject()
o.setObjectName("obj")
item = QListWidgetItem("item0")
item.setData(Qt.UserRole, o)
# item._data = o
self.assertTrue(sys.getrefcount(o), 3)
self.assertTrue(sys.getrefcount(item), 2)
lst.addItem(item)
self.assertTrue(sys.getrefcount(item), 3)
@unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount")
def checkCurrentItem(self, lst):
item = lst.currentItem()
self.assertTrue(sys.getrefcount(item), 3)
@unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount")
def checkItemData(self, lst):
item = lst.currentItem()
o = item.data(Qt.UserRole)
self.assertTrue(sys.getrefcount(o), 4)
self.assertEqual(o, item._data)
self.assertTrue(sys.getrefcount(o), 2)
@unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount")
def testConstructorWithParent(self):
lst = QListWidget()
self.populateList(lst)
self.checkCurrentItem(lst)
i = lst.item(0)
self.assertTrue(sys.getrefcount(i), 3)
del lst
self.assertTrue(sys.getrefcount(i), 2)
del i
def testIt(self):
lst = QListWidget()
lst.show()
slot = lambda: lst.removeItemWidget(lst.currentItem())
lst.addItem(QListWidgetItem("foo"))
QTimer.singleShot(0, slot)
QTimer.singleShot(0, lst.close)
self.app.exec()
self.assertEqual(lst.count(), 1)
def testClear(self):
lst = QListWidget()
lst.addItem("foo")
item = lst.item(0)
self.assertIsNone(lst.clear())
self.assertRaises(RuntimeError, lambda: item.text())
if __name__ == '__main__':
unittest.main()
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