#! /usr/bin/env python
#
# test_multibytecodec.py
# Unit test for multibytecodec itself
#
from test import test_support
from test.test_support import TESTFN
import unittest, StringIO, codecs, sys, os
import _multibytecodec
ALL_CJKENCODINGS = [
# _codecs_cn
'gb2312', 'gbk', 'gb18030', 'hz',
# _codecs_hk
'big5hkscs',
# _codecs_jp
'cp932', 'shift_jis', 'euc_jp', 'euc_jisx0213', 'shift_jisx0213',
'euc_jis_2004', 'shift_jis_2004',
# _codecs_kr
'cp949', 'euc_kr', 'johab',
# _codecs_tw
'big5', 'cp950',
# _codecs_iso2022
'iso2022_jp', 'iso2022_jp_1', 'iso2022_jp_2', 'iso2022_jp_2004',
'iso2022_jp_3', 'iso2022_jp_ext', 'iso2022_kr',
]
class Test_MultibyteCodec(unittest.TestCase):
def test_nullcoding(self):
for enc in ALL_CJKENCODINGS:
self.assertEqual(''.decode(enc), u'')
self.assertEqual(unicode('', enc), u'')
self.assertEqual(u''.encode(enc), '')
def test_str_decode(self):
for enc in ALL_CJKENCODINGS:
self.assertEqual('abcd'.encode(enc), 'abcd')
def test_errorcallback_longindex(self):
dec = codecs.getdecoder('euc-kr')
myreplace = lambda exc: (u'', sys.maxint+1)
codecs.register_error('test.cjktest', myreplace)
self.assertRaises(IndexError, dec,
'apple\x92ham\x93spam', 'test.cjktest')
def test_codingspec(self):
for enc in ALL_CJKENCODINGS:
code = '# coding: {}\n'.format(enc)
exec code
def test_init_segfault(self):
# bug #3305: this used to segfault
self.assertRaises(AttributeError,
_multibytecodec.MultibyteStreamReader, None)
self.assertRaises(AttributeError,
_multibytecodec.MultibyteStreamWriter, None)
class Test_IncrementalEncoder(unittest.TestCase):
def test_stateless(self):
# cp949 encoder isn't stateful at all.
encoder = codecs.getincrementalencoder('cp949')()
self.assertEqual(encoder.encode(u'\ud30c\uc774\uc36c \ub9c8\uc744'),
'\xc6\xc4\xc0\xcc\xbd\xe3 \xb8\xb6\xc0\xbb')
self.assertEqual(encoder.reset(), None)
self.assertEqual(encoder.encode(u'\u2606\u223c\u2606', True),
'\xa1\xd9\xa1\xad\xa1\xd9')
self.assertEqual(encoder.reset(), None)
self.assertEqual(encoder.encode(u'', True), '')
self.assertEqual(encoder.encode(u'', False), '')
self.assertEqual(encoder.reset(), None)
def test_stateful(self):
# jisx0213 encoder is stateful for a few codepoints. eg)
# U+00E6 => A9DC
# U+00E6 U+0300 => ABC4
# U+0300 => ABDC
encoder = codecs.getincrementalencoder('jisx0213')()
self.assertEqual(encoder.encode(u'\u00e6\u0300'), '\xab\xc4')
self.assertEqual(encoder.encode(u'\u00e6'), '')
self.assertEqual(encoder.encode(u'\u0300'), '\xab\xc4')
self.assertEqual(encoder.encode(u'\u00e6', True), '\xa9\xdc')
self.assertEqual(encoder.reset(), None)
self.assertEqual(encoder.encode(u'\u0300'), '\xab\xdc')
self.assertEqual(encoder.encode(u'\u00e6'), '')
self.assertEqual(encoder.encode('', True), '\xa9\xdc')
self.assertEqual(encoder.encode('', True), '')
def test_stateful_keep_buffer(self):
encoder = codecs.getincrementalencoder('jisx0213')()
self.assertEqual(encoder.encode(u'\u00e6'), '')
self.assertRaises(UnicodeEncodeError, encoder.encode, u'\u0123')
self.assertEqual(encoder.encode(u'\u0300\u00e6'), '\xab\xc4')
self.assertRaises(UnicodeEncodeError, encoder.encode, u'\u0123')
self.assertEqual(encoder.reset(), None)
self.assertEqual(encoder.encode(u'\u0300'), '\xab\xdc')
self.assertEqual(encoder.encode(u'\u00e6'), '')
self.assertRaises(UnicodeEncodeError, encoder.encode, u'\u0123')
self.assertEqual(encoder.encode(u'', True), '\xa9\xdc')
def test_issue5640(self):
encoder = codecs.getincrementalencoder('shift-jis')('backslashreplace')
self.assertEqual(encoder.encode(u'\xff'), b'\\xff')
self.assertEqual(encoder.encode(u'\n'), b'\n')
class Test_IncrementalDecoder(unittest.TestCase):
def test_dbcs(self):
# cp949 decoder is simple with only 1 or 2 bytes sequences.
decoder = codecs.getincrementaldecoder('cp949')()
self.assertEqual(decoder.decode('\xc6\xc4\xc0\xcc\xbd'),
u'\ud30c\uc774')
self.assertEqual(decoder.decode('\xe3 \xb8\xb6\xc0\xbb'),
u'\uc36c \ub9c8\uc744')
self.assertEqual(decoder.decode(''), u'')
def test_dbcs_keep_buffer(self):
decoder = codecs.getincrementaldecoder('cp949')()
self.assertEqual(decoder.decode('\xc6\xc4\xc0'), u'\ud30c')
self.assertRaises(UnicodeDecodeError, decoder.decode, '', True)
self.assertEqual(decoder.decode('\xcc'), u'\uc774')
self.assertEqual(decoder.decode('\xc6\xc4\xc0'), u'\ud30c')
self.assertRaises(UnicodeDecodeError, decoder.decode, '\xcc\xbd', True)
self.assertEqual(decoder.decode('\xcc'), u'\uc774')
def test_iso2022(self):
decoder = codecs.getincrementaldecoder('iso2022-jp')()
ESC = '\x1b'
self.assertEqual(decoder.decode(ESC + '('), u'')
self.assertEqual(decoder.decode('B', True), u'')
self.assertEqual(decoder.decode(ESC + '$'), u'')
self.assertEqual(decoder.decode('B@$'), u'\u4e16')
self.assertEqual(decoder.decode('@$@'), u'\u4e16')
self.assertEqual(decoder.decode('$', True), u'\u4e16')
self.assertEqual(decoder.reset(), None)
self.assertEqual(decoder.decode('@$'), u'@$')
self.assertEqual(decoder.decode(ESC + '$'), u'')
self.assertRaises(UnicodeDecodeError, decoder.decode, '', True)
self.assertEqual(decoder.decode('B@$'), u'\u4e16')
class Test_StreamReader(unittest.TestCase):
def test_bug1728403(self):
try:
open(TESTFN, 'w').write('\xa1')
f = codecs.open(TESTFN, encoding='cp949')
self.assertRaises(UnicodeDecodeError, f.read, 2)
finally:
try: f.close()
except: pass
os.unlink(TESTFN)
class Test_StreamWriter(unittest.TestCase):
if len(u'\U00012345') == 2: # UCS2
def test_gb18030(self):
s = StringIO.StringIO()
c = codecs.getwriter('gb18030')(s)
c.write(u'123')
self.assertEqual(s.getvalue(), '123')
c.write(u'\U00012345')
self.assertEqual(s.getvalue(), '123\x907\x959')
c.write(u'\U00012345'[0])
self.assertEqual(s.getvalue(), '123\x907\x959')
c.write(u'\U00012345'[1] + u'\U00012345' + u'\uac00\u00ac')
self.assertEqual(s.getvalue(),
'123\x907\x959\x907\x959\x907\x959\x827\xcf5\x810\x851')
c.write(u'\U00012345'[0])
self.assertEqual(s.getvalue(),
'123\x907\x959\x907\x959\x907\x959\x827\xcf5\x810\x851')
self.assertRaises(UnicodeError, c.reset)
self.assertEqual(s.getvalue(),
'123\x907\x959\x907\x959\x907\x959\x827\xcf5\x810\x851')
def test_utf_8(self):
s= StringIO.StringIO()
c = codecs.getwriter('utf-8')(s)
c.write(u'123')
self.assertEqual(s.getvalue(), '123')
c.write(u'\U00012345')
self.assertEqual(s.getvalue(), '123\xf0\x92\x8d\x85')
# Python utf-8 codec can't buffer surrogate pairs yet.
if 0:
c.write(u'\U00012345'[0])
self.assertEqual(s.getvalue(), '123\xf0\x92\x8d\x85')
c.write(u'\U00012345'[1] + u'\U00012345' + u'\uac00\u00ac')
self.assertEqual(s.getvalue(),
'123\xf0\x92\x8d\x85\xf0\x92\x8d\x85\xf0\x92\x8d\x85'
'\xea\xb0\x80\xc2\xac')
c.write(u'\U00012345'[0])
self.assertEqual(s.getvalue(),
'123\xf0\x92\x8d\x85\xf0\x92\x8d\x85\xf0\x92\x8d\x85'
'\xea\xb0\x80\xc2\xac')
c.reset()
self.assertEqual(s.getvalue(),
'123\xf0\x92\x8d\x85\xf0\x92\x8d\x85\xf0\x92\x8d\x85'
'\xea\xb0\x80\xc2\xac\xed\xa0\x88')
c.write(u'\U00012345'[1])
self.assertEqual(s.getvalue(),
'123\xf0\x92\x8d\x85\xf0\x92\x8d\x85\xf0\x92\x8d\x85'
'\xea\xb0\x80\xc2\xac\xed\xa0\x88\xed\xbd\x85')
else: # UCS4
pass
def test_streamwriter_strwrite(self):
s = StringIO.StringIO()
wr = codecs.getwriter('gb18030')(s)
wr.write('abcd')
self.assertEqual(s.getvalue(), 'abcd')
class Test_ISO2022(unittest.TestCase):
def test_g2(self):
iso2022jp2 = '\x1b(B:hu4:unit\x1b.A\x1bNi de famille'
uni = u':hu4:unit\xe9 de famille'
self.assertEqual(iso2022jp2.decode('iso2022-jp-2'), uni)
def test_iso2022_jp_g0(self):
self.assertNotIn('\x0e', u'\N{SOFT HYPHEN}'.encode('iso-2022-jp-2'))
for encoding in ('iso-2022-jp-2004', 'iso-2022-jp-3'):
e = u'\u3406'.encode(encoding)
self.assertFalse(filter(lambda x: x >= '\x80', e))
def test_bug1572832(self):
if sys.maxunicode >= 0x10000:
myunichr = unichr
else:
myunichr = lambda x: unichr(0xD7C0+(x>>10)) + unichr(0xDC00+(x&0x3FF))
for x in xrange(0x10000, 0x110000):
# Any ISO 2022 codec will cause the segfault
myunichr(x).encode('iso_2022_jp', 'ignore')
class TestStateful(unittest.TestCase):
text = u'\u4E16\u4E16'
encoding = 'iso-2022-jp'
expected = b'\x1b$B@$@$'
expected_reset = b'\x1b$B@$@$\x1b(B'
def test_encode(self):
self.assertEqual(self.text.encode(self.encoding), self.expected_reset)
def test_incrementalencoder(self):
encoder = codecs.getincrementalencoder(self.encoding)()
output = b''.join(
encoder.encode(char)
for char in self.text)
self.assertEqual(output, self.expected)
def test_incrementalencoder_final(self):
encoder = codecs.getincrementalencoder(self.encoding)()
last_index = len(self.text) - 1
output = b''.join(
encoder.encode(char, index == last_index)
for index, char in enumerate(self.text))
self.assertEqual(output, self.expected_reset)
class TestHZStateful(TestStateful):
text = u'\u804a\u804a'
encoding = 'hz'
expected = b'~{ADAD'
expected_reset = b'~{ADAD~}'
def test_main():
test_support.run_unittest(__name__)
if __name__ == "__main__":
test_main()