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'''Unit tests for QTextStream'''
import unittest
from PySide.QtCore import QTextStream, QIODevice, QString, QByteArray
from PySide.QtCore import QTextCodec, 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 << QString('4')
self.write.flush()
res = self.read.readLine()
self.assert_(isinstance(res, QString))
self.assertEqual(res, QString('4'))
def testString(self):
self.write << QString('Test_it!')
self.write.flush()
res = QString()
self.read >> res
self.assertEqual(res, QString('Test_it!'))
class QTextStreamGetSet(unittest.TestCase):
def setUp(self):
self.obj = QTextStream()
def testCodec(self):
'''QTextStream set/get Codec'''
codec = QTextCodec.codecForName('ISO8859-1')
self.obj.setCodec(codec)
self.assertEqual(codec, self.obj.codec())
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.codec(), QTextCodec.codecForLocale())
self.assertEqual(obj.device(), None)
self.assertEqual(obj.string(), None)
self.assert_(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('\n'), ['']))
data.append((QByteArray('\r\n'), ['']))
data.append((QByteArray('ole'), ['ole']))
data.append((QByteArray('ole\n'), ['ole']))
data.append((QByteArray('ole\r\n'), ['ole']))
data.append((QByteArray('ole\r\ndole\r\ndoffen'), ['ole', 'dole', 'doffen']))
self._check_data(data)
if __name__ == '__main__':
unittest.main()
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