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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
'''Unit tests for QTextStream'''
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 QByteArray, QTextStream, QIODevice, QFile
class QTextStreamShiftTest(unittest.TestCase):
def setUp(self):
self.ba = QByteArray()
self.read = QTextStream(self.ba, QIODevice.ReadOnly)
self.write = QTextStream(self.ba, QIODevice.WriteOnly)
def testNumber(self):
'''QTextStream << number'''
self.write << '4'
self.write.flush()
res = self.read.readLine()
self.assertTrue(isinstance(res, str))
self.assertEqual(res, '4')
class QTextStreamGetSet(unittest.TestCase):
def setUp(self):
self.obj = QTextStream()
def testDevice(self):
'''QTextStream get/set Device'''
device = QFile()
self.obj.setDevice(device)
self.assertEqual(device, self.obj.device())
self.obj.setDevice(None)
self.assertEqual(None, self.obj.device())
class QTextStreamInitialization(unittest.TestCase):
def testConstruction(self):
'''QTextStream construction'''
obj = QTextStream()
self.assertEqual(obj.device(), None)
self.assertEqual(obj.string(), None)
self.assertTrue(obj.atEnd())
self.assertEqual(obj.readAll(), '')
class QTextStreamReadLinesFromDevice(unittest.TestCase):
def _check_data(self, data_set):
for data, lines in data_set:
stream = QTextStream(data)
res = []
while not stream.atEnd():
res.append(stream.readLine())
self.assertEqual(res, lines)
def testLatin1(self):
'''QTextStream readLine for simple Latin1 strings'''
data = []
data.append((QByteArray(), []))
data.append((QByteArray(bytes('\n', "UTF-8")), ['']))
data.append((QByteArray(bytes('\r\n', "UTF-8")), ['']))
data.append((QByteArray(bytes('ole', "UTF-8")), ['ole']))
data.append((QByteArray(bytes('ole\n', "UTF-8")), ['ole']))
data.append((QByteArray(bytes('ole\r\n', "UTF-8")), ['ole']))
data.append((QByteArray(bytes('ole\r\ndole\r\ndoffen', "UTF-8")), ['ole', 'dole', 'doffen']))
self._check_data(data)
if __name__ == '__main__':
unittest.main()
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