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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.QtGui import QTextDocument, QTextCursor
class QTextDocumentTest(unittest.TestCase):
def testUndoRedo(self):
text = 'foobar'
doc = QTextDocument(text)
self.assertFalse(doc.isRedoAvailable())
self.assertTrue(doc.isUndoAvailable())
self.assertEqual(doc.toPlainText(), text)
cursor = QTextCursor(doc)
doc.undo(cursor)
self.assertTrue(doc.isRedoAvailable())
self.assertFalse(doc.isUndoAvailable())
self.assertEqual(doc.toPlainText(), '')
doc.redo(cursor)
self.assertFalse(doc.isRedoAvailable())
self.assertTrue(doc.isUndoAvailable())
self.assertEqual(doc.toPlainText(), text)
if __name__ == '__main__':
unittest.main()
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