mirror of https://github.com/python/cpython
411 lines
16 KiB
Python
411 lines
16 KiB
Python
#
|
|
# test_multibytecodec.py
|
|
# Unit test for multibytecodec itself
|
|
#
|
|
|
|
import _multibytecodec
|
|
import codecs
|
|
import io
|
|
import sys
|
|
import textwrap
|
|
import unittest
|
|
from test import support
|
|
from test.support import os_helper
|
|
from test.support.os_helper import TESTFN
|
|
|
|
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(b''.decode(enc), '')
|
|
self.assertEqual(str(b'', enc), '')
|
|
self.assertEqual(''.encode(enc), b'')
|
|
|
|
def test_str_decode(self):
|
|
for enc in ALL_CJKENCODINGS:
|
|
self.assertEqual('abcd'.encode(enc), b'abcd')
|
|
|
|
def test_errorcallback_longindex(self):
|
|
dec = codecs.getdecoder('euc-kr')
|
|
myreplace = lambda exc: ('', sys.maxsize+1)
|
|
codecs.register_error('test.cjktest', myreplace)
|
|
self.assertRaises(IndexError, dec,
|
|
b'apple\x92ham\x93spam', 'test.cjktest')
|
|
|
|
def test_errorcallback_custom_ignore(self):
|
|
# Issue #23215: MemoryError with custom error handlers and multibyte codecs
|
|
data = 100 * "\udc00"
|
|
codecs.register_error("test.ignore", codecs.ignore_errors)
|
|
for enc in ALL_CJKENCODINGS:
|
|
self.assertEqual(data.encode(enc, "test.ignore"), b'')
|
|
|
|
def test_codingspec(self):
|
|
try:
|
|
for enc in ALL_CJKENCODINGS:
|
|
code = '# coding: {}\n'.format(enc)
|
|
exec(code)
|
|
finally:
|
|
os_helper.unlink(TESTFN)
|
|
|
|
def test_init_segfault(self):
|
|
# bug #3305: this used to segfault
|
|
self.assertRaises(AttributeError,
|
|
_multibytecodec.MultibyteStreamReader, None)
|
|
self.assertRaises(AttributeError,
|
|
_multibytecodec.MultibyteStreamWriter, None)
|
|
|
|
def test_decode_unicode(self):
|
|
# Trying to decode a unicode string should raise a TypeError
|
|
for enc in ALL_CJKENCODINGS:
|
|
self.assertRaises(TypeError, codecs.getdecoder(enc), "")
|
|
|
|
class Test_IncrementalEncoder(unittest.TestCase):
|
|
|
|
def test_stateless(self):
|
|
# cp949 encoder isn't stateful at all.
|
|
encoder = codecs.getincrementalencoder('cp949')()
|
|
self.assertEqual(encoder.encode('\ud30c\uc774\uc36c \ub9c8\uc744'),
|
|
b'\xc6\xc4\xc0\xcc\xbd\xe3 \xb8\xb6\xc0\xbb')
|
|
self.assertEqual(encoder.reset(), None)
|
|
self.assertEqual(encoder.encode('\u2606\u223c\u2606', True),
|
|
b'\xa1\xd9\xa1\xad\xa1\xd9')
|
|
self.assertEqual(encoder.reset(), None)
|
|
self.assertEqual(encoder.encode('', True), b'')
|
|
self.assertEqual(encoder.encode('', False), b'')
|
|
self.assertEqual(encoder.reset(), None)
|
|
|
|
def test_stateful(self):
|
|
# jisx0213 encoder is stateful for a few code points. eg)
|
|
# U+00E6 => A9DC
|
|
# U+00E6 U+0300 => ABC4
|
|
# U+0300 => ABDC
|
|
|
|
encoder = codecs.getincrementalencoder('jisx0213')()
|
|
self.assertEqual(encoder.encode('\u00e6\u0300'), b'\xab\xc4')
|
|
self.assertEqual(encoder.encode('\u00e6'), b'')
|
|
self.assertEqual(encoder.encode('\u0300'), b'\xab\xc4')
|
|
self.assertEqual(encoder.encode('\u00e6', True), b'\xa9\xdc')
|
|
|
|
self.assertEqual(encoder.reset(), None)
|
|
self.assertEqual(encoder.encode('\u0300'), b'\xab\xdc')
|
|
|
|
self.assertEqual(encoder.encode('\u00e6'), b'')
|
|
self.assertEqual(encoder.encode('', True), b'\xa9\xdc')
|
|
self.assertEqual(encoder.encode('', True), b'')
|
|
|
|
def test_stateful_keep_buffer(self):
|
|
encoder = codecs.getincrementalencoder('jisx0213')()
|
|
self.assertEqual(encoder.encode('\u00e6'), b'')
|
|
self.assertRaises(UnicodeEncodeError, encoder.encode, '\u0123')
|
|
self.assertEqual(encoder.encode('\u0300\u00e6'), b'\xab\xc4')
|
|
self.assertRaises(UnicodeEncodeError, encoder.encode, '\u0123')
|
|
self.assertEqual(encoder.reset(), None)
|
|
self.assertEqual(encoder.encode('\u0300'), b'\xab\xdc')
|
|
self.assertEqual(encoder.encode('\u00e6'), b'')
|
|
self.assertRaises(UnicodeEncodeError, encoder.encode, '\u0123')
|
|
self.assertEqual(encoder.encode('', True), b'\xa9\xdc')
|
|
|
|
def test_state_methods_with_buffer_state(self):
|
|
# euc_jis_2004 stores state as a buffer of pending bytes
|
|
encoder = codecs.getincrementalencoder('euc_jis_2004')()
|
|
|
|
initial_state = encoder.getstate()
|
|
self.assertEqual(encoder.encode('\u00e6\u0300'), b'\xab\xc4')
|
|
encoder.setstate(initial_state)
|
|
self.assertEqual(encoder.encode('\u00e6\u0300'), b'\xab\xc4')
|
|
|
|
self.assertEqual(encoder.encode('\u00e6'), b'')
|
|
partial_state = encoder.getstate()
|
|
self.assertEqual(encoder.encode('\u0300'), b'\xab\xc4')
|
|
encoder.setstate(partial_state)
|
|
self.assertEqual(encoder.encode('\u0300'), b'\xab\xc4')
|
|
|
|
def test_state_methods_with_non_buffer_state(self):
|
|
# iso2022_jp stores state without using a buffer
|
|
encoder = codecs.getincrementalencoder('iso2022_jp')()
|
|
|
|
self.assertEqual(encoder.encode('z'), b'z')
|
|
en_state = encoder.getstate()
|
|
|
|
self.assertEqual(encoder.encode('\u3042'), b'\x1b\x24\x42\x24\x22')
|
|
jp_state = encoder.getstate()
|
|
self.assertEqual(encoder.encode('z'), b'\x1b\x28\x42z')
|
|
|
|
encoder.setstate(jp_state)
|
|
self.assertEqual(encoder.encode('\u3042'), b'\x24\x22')
|
|
|
|
encoder.setstate(en_state)
|
|
self.assertEqual(encoder.encode('z'), b'z')
|
|
|
|
def test_getstate_returns_expected_value(self):
|
|
# Note: getstate is implemented such that these state values
|
|
# are expected to be the same across all builds of Python,
|
|
# regardless of x32/64 bit, endianness and compiler.
|
|
|
|
# euc_jis_2004 stores state as a buffer of pending bytes
|
|
buffer_state_encoder = codecs.getincrementalencoder('euc_jis_2004')()
|
|
self.assertEqual(buffer_state_encoder.getstate(), 0)
|
|
buffer_state_encoder.encode('\u00e6')
|
|
self.assertEqual(buffer_state_encoder.getstate(),
|
|
int.from_bytes(
|
|
b"\x02"
|
|
b"\xc3\xa6"
|
|
b"\x00\x00\x00\x00\x00\x00\x00\x00",
|
|
'little'))
|
|
buffer_state_encoder.encode('\u0300')
|
|
self.assertEqual(buffer_state_encoder.getstate(), 0)
|
|
|
|
# iso2022_jp stores state without using a buffer
|
|
non_buffer_state_encoder = codecs.getincrementalencoder('iso2022_jp')()
|
|
self.assertEqual(non_buffer_state_encoder.getstate(),
|
|
int.from_bytes(
|
|
b"\x00"
|
|
b"\x42\x42\x00\x00\x00\x00\x00\x00",
|
|
'little'))
|
|
non_buffer_state_encoder.encode('\u3042')
|
|
self.assertEqual(non_buffer_state_encoder.getstate(),
|
|
int.from_bytes(
|
|
b"\x00"
|
|
b"\xc2\x42\x00\x00\x00\x00\x00\x00",
|
|
'little'))
|
|
|
|
def test_setstate_validates_input_size(self):
|
|
encoder = codecs.getincrementalencoder('euc_jp')()
|
|
pending_size_nine = int.from_bytes(
|
|
b"\x09"
|
|
b"\x00\x00\x00\x00\x00\x00\x00\x00"
|
|
b"\x00\x00\x00\x00\x00\x00\x00\x00",
|
|
'little')
|
|
self.assertRaises(UnicodeError, encoder.setstate, pending_size_nine)
|
|
|
|
def test_setstate_validates_input_bytes(self):
|
|
encoder = codecs.getincrementalencoder('euc_jp')()
|
|
invalid_utf8 = int.from_bytes(
|
|
b"\x01"
|
|
b"\xff"
|
|
b"\x00\x00\x00\x00\x00\x00\x00\x00",
|
|
'little')
|
|
self.assertRaises(UnicodeDecodeError, encoder.setstate, invalid_utf8)
|
|
|
|
def test_issue5640(self):
|
|
encoder = codecs.getincrementalencoder('shift-jis')('backslashreplace')
|
|
self.assertEqual(encoder.encode('\xff'), b'\\xff')
|
|
self.assertEqual(encoder.encode('\n'), b'\n')
|
|
|
|
@support.cpython_only
|
|
def test_subinterp(self):
|
|
# bpo-42846: Test a CJK codec in a subinterpreter
|
|
import _testcapi
|
|
encoding = 'cp932'
|
|
text = "Python の開発は、1990 年ごろから開始されています。"
|
|
code = textwrap.dedent("""
|
|
import codecs
|
|
encoding = %r
|
|
text = %r
|
|
encoder = codecs.getincrementalencoder(encoding)()
|
|
text2 = encoder.encode(text).decode(encoding)
|
|
if text2 != text:
|
|
raise ValueError(f"encoding issue: {text2!a} != {text!a}")
|
|
""") % (encoding, text)
|
|
res = _testcapi.run_in_subinterp(code)
|
|
self.assertEqual(res, 0)
|
|
|
|
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(b'\xc6\xc4\xc0\xcc\xbd'),
|
|
'\ud30c\uc774')
|
|
self.assertEqual(decoder.decode(b'\xe3 \xb8\xb6\xc0\xbb'),
|
|
'\uc36c \ub9c8\uc744')
|
|
self.assertEqual(decoder.decode(b''), '')
|
|
|
|
def test_dbcs_keep_buffer(self):
|
|
decoder = codecs.getincrementaldecoder('cp949')()
|
|
self.assertEqual(decoder.decode(b'\xc6\xc4\xc0'), '\ud30c')
|
|
self.assertRaises(UnicodeDecodeError, decoder.decode, b'', True)
|
|
self.assertEqual(decoder.decode(b'\xcc'), '\uc774')
|
|
|
|
self.assertEqual(decoder.decode(b'\xc6\xc4\xc0'), '\ud30c')
|
|
self.assertRaises(UnicodeDecodeError, decoder.decode,
|
|
b'\xcc\xbd', True)
|
|
self.assertEqual(decoder.decode(b'\xcc'), '\uc774')
|
|
|
|
def test_iso2022(self):
|
|
decoder = codecs.getincrementaldecoder('iso2022-jp')()
|
|
ESC = b'\x1b'
|
|
self.assertEqual(decoder.decode(ESC + b'('), '')
|
|
self.assertEqual(decoder.decode(b'B', True), '')
|
|
self.assertEqual(decoder.decode(ESC + b'$'), '')
|
|
self.assertEqual(decoder.decode(b'B@$'), '\u4e16')
|
|
self.assertEqual(decoder.decode(b'@$@'), '\u4e16')
|
|
self.assertEqual(decoder.decode(b'$', True), '\u4e16')
|
|
self.assertEqual(decoder.reset(), None)
|
|
self.assertEqual(decoder.decode(b'@$'), '@$')
|
|
self.assertEqual(decoder.decode(ESC + b'$'), '')
|
|
self.assertRaises(UnicodeDecodeError, decoder.decode, b'', True)
|
|
self.assertEqual(decoder.decode(b'B@$'), '\u4e16')
|
|
|
|
def test_decode_unicode(self):
|
|
# Trying to decode a unicode string should raise a TypeError
|
|
for enc in ALL_CJKENCODINGS:
|
|
decoder = codecs.getincrementaldecoder(enc)()
|
|
self.assertRaises(TypeError, decoder.decode, "")
|
|
|
|
def test_state_methods(self):
|
|
decoder = codecs.getincrementaldecoder('euc_jp')()
|
|
|
|
# Decode a complete input sequence
|
|
self.assertEqual(decoder.decode(b'\xa4\xa6'), '\u3046')
|
|
pending1, _ = decoder.getstate()
|
|
self.assertEqual(pending1, b'')
|
|
|
|
# Decode first half of a partial input sequence
|
|
self.assertEqual(decoder.decode(b'\xa4'), '')
|
|
pending2, flags2 = decoder.getstate()
|
|
self.assertEqual(pending2, b'\xa4')
|
|
|
|
# Decode second half of a partial input sequence
|
|
self.assertEqual(decoder.decode(b'\xa6'), '\u3046')
|
|
pending3, _ = decoder.getstate()
|
|
self.assertEqual(pending3, b'')
|
|
|
|
# Jump back and decode second half of partial input sequence again
|
|
decoder.setstate((pending2, flags2))
|
|
self.assertEqual(decoder.decode(b'\xa6'), '\u3046')
|
|
pending4, _ = decoder.getstate()
|
|
self.assertEqual(pending4, b'')
|
|
|
|
# Ensure state values are preserved correctly
|
|
decoder.setstate((b'abc', 123456789))
|
|
self.assertEqual(decoder.getstate(), (b'abc', 123456789))
|
|
|
|
def test_setstate_validates_input(self):
|
|
decoder = codecs.getincrementaldecoder('euc_jp')()
|
|
self.assertRaises(TypeError, decoder.setstate, 123)
|
|
self.assertRaises(TypeError, decoder.setstate, ("invalid", 0))
|
|
self.assertRaises(TypeError, decoder.setstate, (b"1234", "invalid"))
|
|
self.assertRaises(UnicodeError, decoder.setstate, (b"123456789", 0))
|
|
|
|
class Test_StreamReader(unittest.TestCase):
|
|
def test_bug1728403(self):
|
|
try:
|
|
f = open(TESTFN, 'wb')
|
|
try:
|
|
f.write(b'\xa1')
|
|
finally:
|
|
f.close()
|
|
f = codecs.open(TESTFN, encoding='cp949')
|
|
try:
|
|
self.assertRaises(UnicodeDecodeError, f.read, 2)
|
|
finally:
|
|
f.close()
|
|
finally:
|
|
os_helper.unlink(TESTFN)
|
|
|
|
class Test_StreamWriter(unittest.TestCase):
|
|
def test_gb18030(self):
|
|
s= io.BytesIO()
|
|
c = codecs.getwriter('gb18030')(s)
|
|
c.write('123')
|
|
self.assertEqual(s.getvalue(), b'123')
|
|
c.write('\U00012345')
|
|
self.assertEqual(s.getvalue(), b'123\x907\x959')
|
|
c.write('\uac00\u00ac')
|
|
self.assertEqual(s.getvalue(),
|
|
b'123\x907\x959\x827\xcf5\x810\x851')
|
|
|
|
def test_utf_8(self):
|
|
s= io.BytesIO()
|
|
c = codecs.getwriter('utf-8')(s)
|
|
c.write('123')
|
|
self.assertEqual(s.getvalue(), b'123')
|
|
c.write('\U00012345')
|
|
self.assertEqual(s.getvalue(), b'123\xf0\x92\x8d\x85')
|
|
c.write('\uac00\u00ac')
|
|
self.assertEqual(s.getvalue(),
|
|
b'123\xf0\x92\x8d\x85'
|
|
b'\xea\xb0\x80\xc2\xac')
|
|
|
|
def test_streamwriter_strwrite(self):
|
|
s = io.BytesIO()
|
|
wr = codecs.getwriter('gb18030')(s)
|
|
wr.write('abcd')
|
|
self.assertEqual(s.getvalue(), b'abcd')
|
|
|
|
class Test_ISO2022(unittest.TestCase):
|
|
def test_g2(self):
|
|
iso2022jp2 = b'\x1b(B:hu4:unit\x1b.A\x1bNi de famille'
|
|
uni = ':hu4:unit\xe9 de famille'
|
|
self.assertEqual(iso2022jp2.decode('iso2022-jp-2'), uni)
|
|
|
|
def test_iso2022_jp_g0(self):
|
|
self.assertNotIn(b'\x0e', '\N{SOFT HYPHEN}'.encode('iso-2022-jp-2'))
|
|
for encoding in ('iso-2022-jp-2004', 'iso-2022-jp-3'):
|
|
e = '\u3406'.encode(encoding)
|
|
self.assertFalse(any(x > 0x80 for x in e))
|
|
|
|
def test_bug1572832(self):
|
|
for x in range(0x10000, 0x110000):
|
|
# Any ISO 2022 codec will cause the segfault
|
|
chr(x).encode('iso_2022_jp', 'ignore')
|
|
|
|
class TestStateful(unittest.TestCase):
|
|
text = '\u4E16\u4E16'
|
|
encoding = 'iso-2022-jp'
|
|
expected = b'\x1b$B@$@$'
|
|
reset = b'\x1b(B'
|
|
expected_reset = expected + reset
|
|
|
|
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)
|
|
self.assertEqual(encoder.encode('', final=True), self.reset)
|
|
self.assertEqual(encoder.encode('', final=True), b'')
|
|
|
|
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)
|
|
self.assertEqual(encoder.encode('', final=True), b'')
|
|
|
|
class TestHZStateful(TestStateful):
|
|
text = '\u804a\u804a'
|
|
encoding = 'hz'
|
|
expected = b'~{ADAD'
|
|
reset = b'~}'
|
|
expected_reset = expected + reset
|
|
|
|
def test_main():
|
|
support.run_unittest(__name__)
|
|
|
|
if __name__ == "__main__":
|
|
test_main()
|