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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 helper.usesqapplication import UsesQApplication
from PySide6.QtGui import QValidator, QIntValidator
from PySide6.QtWidgets import QLineEdit
'''Bug #871 - http://bugs.pyside.org/show_bug.cgi?id=871'''
class BlankIntValidator(QIntValidator):
def validate(self, input, pos):
if input == '':
return QValidator.Acceptable, input, pos
else:
return QIntValidator.validate(self, input, pos)
class Bug871Test(UsesQApplication):
def testWithoutValidator(self):
edit = QLineEdit()
self.assertEqual(edit.text(), '')
edit.insert('1')
self.assertEqual(edit.text(), '1')
edit.insert('a')
self.assertEqual(edit.text(), '1a')
edit.insert('2')
self.assertEqual(edit.text(), '1a2')
def testWithIntValidator(self):
edit = QLineEdit()
edit.setValidator(BlankIntValidator(edit))
self.assertEqual(edit.text(), '')
edit.insert('1')
self.assertEqual(edit.text(), '1')
edit.insert('a')
self.assertEqual(edit.text(), '1')
edit.insert('2')
self.assertEqual(edit.text(), '12')
if __name__ == "__main__":
unittest.main()
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