traverseda
/
cpython
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
cpython/Lib/test/test_codecs.py

2440 lines
89 KiB
Python
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

import _testcapi
import codecs
import io
import locale
import sys
import unittest
import warnings
from test import support
if sys.platform == 'win32':
VISTA_OR_LATER = (sys.getwindowsversion().major >= 6)
else:
VISTA_OR_LATER = False
try:
import ctypes
except ImportError:
ctypes = None
SIZEOF_WCHAR_T = -1
else:
SIZEOF_WCHAR_T = ctypes.sizeof(ctypes.c_wchar)
def coding_checker(self, coder):
def check(input, expect):
self.assertEqual(coder(input), (expect, len(input)))
return check
class Queue(object):
"""
queue: write bytes at one end, read bytes from the other end
"""
def __init__(self, buffer):
self._buffer = buffer
def write(self, chars):
self._buffer += chars
def read(self, size=-1):
if size<0:
s = self._buffer
self._buffer = self._buffer[:0] # make empty
return s
else:
s = self._buffer[:size]
self._buffer = self._buffer[size:]
return s
class MixInCheckStateHandling:
def check_state_handling_decode(self, encoding, u, s):
for i in range(len(s)+1):
d = codecs.getincrementaldecoder(encoding)()
part1 = d.decode(s[:i])
state = d.getstate()
self.assertIsInstance(state[1], int)
# Check that the condition stated in the documentation for
# IncrementalDecoder.getstate() holds
if not state[1]:
# reset decoder to the default state without anything buffered
d.setstate((state[0][:0], 0))
# Feeding the previous input may not produce any output
self.assertTrue(not d.decode(state[0]))
# The decoder must return to the same state
self.assertEqual(state, d.getstate())
# Create a new decoder and set it to the state
# we extracted from the old one
d = codecs.getincrementaldecoder(encoding)()
d.setstate(state)
part2 = d.decode(s[i:], True)
self.assertEqual(u, part1+part2)
def check_state_handling_encode(self, encoding, u, s):
for i in range(len(u)+1):
d = codecs.getincrementalencoder(encoding)()
part1 = d.encode(u[:i])
state = d.getstate()
d = codecs.getincrementalencoder(encoding)()
d.setstate(state)
part2 = d.encode(u[i:], True)
self.assertEqual(s, part1+part2)
class ReadTest(MixInCheckStateHandling):
def check_partial(self, input, partialresults):
# get a StreamReader for the encoding and feed the bytestring version
# of input to the reader byte by byte. Read everything available from
# the StreamReader and check that the results equal the appropriate
# entries from partialresults.
q = Queue(b"")
r = codecs.getreader(self.encoding)(q)
result = ""
for (c, partialresult) in zip(input.encode(self.encoding), partialresults):
q.write(bytes([c]))
result += r.read()
self.assertEqual(result, partialresult)
# check that there's nothing left in the buffers
self.assertEqual(r.read(), "")
self.assertEqual(r.bytebuffer, b"")
# do the check again, this time using a incremental decoder
d = codecs.getincrementaldecoder(self.encoding)()
result = ""
for (c, partialresult) in zip(input.encode(self.encoding), partialresults):
result += d.decode(bytes([c]))
self.assertEqual(result, partialresult)
# check that there's nothing left in the buffers
self.assertEqual(d.decode(b"", True), "")
self.assertEqual(d.buffer, b"")
# Check whether the reset method works properly
d.reset()
result = ""
for (c, partialresult) in zip(input.encode(self.encoding), partialresults):
result += d.decode(bytes([c]))
self.assertEqual(result, partialresult)
# check that there's nothing left in the buffers
self.assertEqual(d.decode(b"", True), "")
self.assertEqual(d.buffer, b"")
# check iterdecode()
encoded = input.encode(self.encoding)
self.assertEqual(
input,
"".join(codecs.iterdecode([bytes([c]) for c in encoded], self.encoding))
)
def test_readline(self):
def getreader(input):
stream = io.BytesIO(input.encode(self.encoding))
return codecs.getreader(self.encoding)(stream)
def readalllines(input, keepends=True, size=None):
reader = getreader(input)
lines = []
while True:
line = reader.readline(size=size, keepends=keepends)
if not line:
break
lines.append(line)
return "|".join(lines)
s = "foo\nbar\r\nbaz\rspam\u2028eggs"
sexpected = "foo\n|bar\r\n|baz\r|spam\u2028|eggs"
sexpectednoends = "foo|bar|baz|spam|eggs"
self.assertEqual(readalllines(s, True), sexpected)
self.assertEqual(readalllines(s, False), sexpectednoends)
self.assertEqual(readalllines(s, True, 10), sexpected)
self.assertEqual(readalllines(s, False, 10), sexpectednoends)
# Test long lines (multiple calls to read() in readline())
vw = []
vwo = []
for (i, lineend) in enumerate("\n \r\n \r \u2028".split()):
vw.append((i*200)*"\3042" + lineend)
vwo.append((i*200)*"\3042")
self.assertEqual(readalllines("".join(vw), True), "".join(vw))
self.assertEqual(readalllines("".join(vw), False),"".join(vwo))
# Test lines where the first read might end with \r, so the
# reader has to look ahead whether this is a lone \r or a \r\n
for size in range(80):
for lineend in "\n \r\n \r \u2028".split():
s = 10*(size*"a" + lineend + "xxx\n")
reader = getreader(s)
for i in range(10):
self.assertEqual(
reader.readline(keepends=True),
size*"a" + lineend,
)
reader = getreader(s)
for i in range(10):
self.assertEqual(
reader.readline(keepends=False),
size*"a",
)
def test_bug1175396(self):
s = [
'<%!--===================================================\r\n',
' BLOG index page: show recent articles,\r\n',
' today\'s articles, or articles of a specific date.\r\n',
'========================================================--%>\r\n',
'<%@inputencoding="ISO-8859-1"%>\r\n',
'<%@pagetemplate=TEMPLATE.y%>\r\n',
'<%@import=import frog.util, frog%>\r\n',
'<%@import=import frog.objects%>\r\n',
'<%@import=from frog.storageerrors import StorageError%>\r\n',
'<%\r\n',
'\r\n',
'import logging\r\n',
'log=logging.getLogger("Snakelets.logger")\r\n',
'\r\n',
'\r\n',
'user=self.SessionCtx.user\r\n',
'storageEngine=self.SessionCtx.storageEngine\r\n',
'\r\n',
'\r\n',
'def readArticlesFromDate(date, count=None):\r\n',
' entryids=storageEngine.listBlogEntries(date)\r\n',
' entryids.reverse() # descending\r\n',
' if count:\r\n',
' entryids=entryids[:count]\r\n',
' try:\r\n',
' return [ frog.objects.BlogEntry.load(storageEngine, date, Id) for Id in entryids ]\r\n',
' except StorageError,x:\r\n',
' log.error("Error loading articles: "+str(x))\r\n',
' self.abort("cannot load articles")\r\n',
'\r\n',
'showdate=None\r\n',
'\r\n',
'arg=self.Request.getArg()\r\n',
'if arg=="today":\r\n',
' #-------------------- TODAY\'S ARTICLES\r\n',
' self.write("<h2>Today\'s articles</h2>")\r\n',
' showdate = frog.util.isodatestr() \r\n',
' entries = readArticlesFromDate(showdate)\r\n',
'elif arg=="active":\r\n',
' #-------------------- ACTIVE ARTICLES redirect\r\n',
' self.Yredirect("active.y")\r\n',
'elif arg=="login":\r\n',
' #-------------------- LOGIN PAGE redirect\r\n',
' self.Yredirect("login.y")\r\n',
'elif arg=="date":\r\n',
' #-------------------- ARTICLES OF A SPECIFIC DATE\r\n',
' showdate = self.Request.getParameter("date")\r\n',
' self.write("<h2>Articles written on %s</h2>"% frog.util.mediumdatestr(showdate))\r\n',
' entries = readArticlesFromDate(showdate)\r\n',
'else:\r\n',
' #-------------------- RECENT ARTICLES\r\n',
' self.write("<h2>Recent articles</h2>")\r\n',
' dates=storageEngine.listBlogEntryDates()\r\n',
' if dates:\r\n',
' entries=[]\r\n',
' SHOWAMOUNT=10\r\n',
' for showdate in dates:\r\n',
' entries.extend( readArticlesFromDate(showdate, SHOWAMOUNT-len(entries)) )\r\n',
' if len(entries)>=SHOWAMOUNT:\r\n',
' break\r\n',
' \r\n',
]
stream = io.BytesIO("".join(s).encode(self.encoding))
reader = codecs.getreader(self.encoding)(stream)
for (i, line) in enumerate(reader):
self.assertEqual(line, s[i])
def test_readlinequeue(self):
q = Queue(b"")
writer = codecs.getwriter(self.encoding)(q)
reader = codecs.getreader(self.encoding)(q)
# No lineends
writer.write("foo\r")
self.assertEqual(reader.readline(keepends=False), "foo")
writer.write("\nbar\r")
self.assertEqual(reader.readline(keepends=False), "")
self.assertEqual(reader.readline(keepends=False), "bar")
writer.write("baz")
self.assertEqual(reader.readline(keepends=False), "baz")
self.assertEqual(reader.readline(keepends=False), "")
# Lineends
writer.write("foo\r")
self.assertEqual(reader.readline(keepends=True), "foo\r")
writer.write("\nbar\r")
self.assertEqual(reader.readline(keepends=True), "\n")
self.assertEqual(reader.readline(keepends=True), "bar\r")
writer.write("baz")
self.assertEqual(reader.readline(keepends=True), "baz")
self.assertEqual(reader.readline(keepends=True), "")
writer.write("foo\r\n")
self.assertEqual(reader.readline(keepends=True), "foo\r\n")
def test_bug1098990_a(self):
s1 = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy\r\n"
s2 = "offending line: ladfj askldfj klasdj fskla dfzaskdj fasklfj laskd fjasklfzzzzaa%whereisthis!!!\r\n"
s3 = "next line.\r\n"
s = (s1+s2+s3).encode(self.encoding)
stream = io.BytesIO(s)
reader = codecs.getreader(self.encoding)(stream)
self.assertEqual(reader.readline(), s1)
self.assertEqual(reader.readline(), s2)
self.assertEqual(reader.readline(), s3)
self.assertEqual(reader.readline(), "")
def test_bug1098990_b(self):
s1 = "aaaaaaaaaaaaaaaaaaaaaaaa\r\n"
s2 = "bbbbbbbbbbbbbbbbbbbbbbbb\r\n"
s3 = "stillokay:bbbbxx\r\n"
s4 = "broken!!!!badbad\r\n"
s5 = "againokay.\r\n"
s = (s1+s2+s3+s4+s5).encode(self.encoding)
stream = io.BytesIO(s)
reader = codecs.getreader(self.encoding)(stream)
self.assertEqual(reader.readline(), s1)
self.assertEqual(reader.readline(), s2)
self.assertEqual(reader.readline(), s3)
self.assertEqual(reader.readline(), s4)
self.assertEqual(reader.readline(), s5)
self.assertEqual(reader.readline(), "")
class UTF32Test(ReadTest, unittest.TestCase):
encoding = "utf-32"
spamle = (b'\xff\xfe\x00\x00'
b's\x00\x00\x00p\x00\x00\x00a\x00\x00\x00m\x00\x00\x00'
b's\x00\x00\x00p\x00\x00\x00a\x00\x00\x00m\x00\x00\x00')
spambe = (b'\x00\x00\xfe\xff'
b'\x00\x00\x00s\x00\x00\x00p\x00\x00\x00a\x00\x00\x00m'
b'\x00\x00\x00s\x00\x00\x00p\x00\x00\x00a\x00\x00\x00m')
def test_only_one_bom(self):
_,_,reader,writer = codecs.lookup(self.encoding)
# encode some stream
s = io.BytesIO()
f = writer(s)
f.write("spam")
f.write("spam")
d = s.getvalue()
# check whether there is exactly one BOM in it
self.assertTrue(d == self.spamle or d == self.spambe)
# try to read it back
s = io.BytesIO(d)
f = reader(s)
self.assertEqual(f.read(), "spamspam")
def test_badbom(self):
s = io.BytesIO(4*b"\xff")
f = codecs.getreader(self.encoding)(s)
self.assertRaises(UnicodeError, f.read)
s = io.BytesIO(8*b"\xff")
f = codecs.getreader(self.encoding)(s)
self.assertRaises(UnicodeError, f.read)
def test_partial(self):
self.check_partial(
"\x00\xff\u0100\uffff\U00010000",
[
"", # first byte of BOM read
"", # second byte of BOM read
"", # third byte of BOM read
"", # fourth byte of BOM read => byteorder known
"",
"",
"",
"\x00",
"\x00",
"\x00",
"\x00",
"\x00\xff",
"\x00\xff",
"\x00\xff",
"\x00\xff",
"\x00\xff\u0100",
"\x00\xff\u0100",
"\x00\xff\u0100",
"\x00\xff\u0100",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff\U00010000",
]
)
def test_handlers(self):
self.assertEqual(('\ufffd', 1),
codecs.utf_32_decode(b'\x01', 'replace', True))
self.assertEqual(('', 1),
codecs.utf_32_decode(b'\x01', 'ignore', True))
def test_errors(self):
self.assertRaises(UnicodeDecodeError, codecs.utf_32_decode,
b"\xff", "strict", True)
def test_decoder_state(self):
self.check_state_handling_decode(self.encoding,
"spamspam", self.spamle)
self.check_state_handling_decode(self.encoding,
"spamspam", self.spambe)
def test_issue8941(self):
# Issue #8941: insufficient result allocation when decoding into
# surrogate pairs on UCS-2 builds.
encoded_le = b'\xff\xfe\x00\x00' + b'\x00\x00\x01\x00' * 1024
self.assertEqual('\U00010000' * 1024,
codecs.utf_32_decode(encoded_le)[0])
encoded_be = b'\x00\x00\xfe\xff' + b'\x00\x01\x00\x00' * 1024
self.assertEqual('\U00010000' * 1024,
codecs.utf_32_decode(encoded_be)[0])
class UTF32LETest(ReadTest, unittest.TestCase):
encoding = "utf-32-le"
def test_partial(self):
self.check_partial(
"\x00\xff\u0100\uffff\U00010000",
[
"",
"",
"",
"\x00",
"\x00",
"\x00",
"\x00",
"\x00\xff",
"\x00\xff",
"\x00\xff",
"\x00\xff",
"\x00\xff\u0100",
"\x00\xff\u0100",
"\x00\xff\u0100",
"\x00\xff\u0100",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff\U00010000",
]
)
def test_simple(self):
self.assertEqual("\U00010203".encode(self.encoding), b"\x03\x02\x01\x00")
def test_errors(self):
self.assertRaises(UnicodeDecodeError, codecs.utf_32_le_decode,
b"\xff", "strict", True)
def test_issue8941(self):
# Issue #8941: insufficient result allocation when decoding into
# surrogate pairs on UCS-2 builds.
encoded = b'\x00\x00\x01\x00' * 1024
self.assertEqual('\U00010000' * 1024,
codecs.utf_32_le_decode(encoded)[0])
class UTF32BETest(ReadTest, unittest.TestCase):
encoding = "utf-32-be"
def test_partial(self):
self.check_partial(
"\x00\xff\u0100\uffff\U00010000",
[
"",
"",
"",
"\x00",
"\x00",
"\x00",
"\x00",
"\x00\xff",
"\x00\xff",
"\x00\xff",
"\x00\xff",
"\x00\xff\u0100",
"\x00\xff\u0100",
"\x00\xff\u0100",
"\x00\xff\u0100",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff\U00010000",
]
)
def test_simple(self):
self.assertEqual("\U00010203".encode(self.encoding), b"\x00\x01\x02\x03")
def test_errors(self):
self.assertRaises(UnicodeDecodeError, codecs.utf_32_be_decode,
b"\xff", "strict", True)
def test_issue8941(self):
# Issue #8941: insufficient result allocation when decoding into
# surrogate pairs on UCS-2 builds.
encoded = b'\x00\x01\x00\x00' * 1024
self.assertEqual('\U00010000' * 1024,
codecs.utf_32_be_decode(encoded)[0])
class UTF16Test(ReadTest, unittest.TestCase):
encoding = "utf-16"
spamle = b'\xff\xfes\x00p\x00a\x00m\x00s\x00p\x00a\x00m\x00'
spambe = b'\xfe\xff\x00s\x00p\x00a\x00m\x00s\x00p\x00a\x00m'
def test_only_one_bom(self):
_,_,reader,writer = codecs.lookup(self.encoding)
# encode some stream
s = io.BytesIO()
f = writer(s)
f.write("spam")
f.write("spam")
d = s.getvalue()
# check whether there is exactly one BOM in it
self.assertTrue(d == self.spamle or d == self.spambe)
# try to read it back
s = io.BytesIO(d)
f = reader(s)
self.assertEqual(f.read(), "spamspam")
def test_badbom(self):
s = io.BytesIO(b"\xff\xff")
f = codecs.getreader(self.encoding)(s)
self.assertRaises(UnicodeError, f.read)
s = io.BytesIO(b"\xff\xff\xff\xff")
f = codecs.getreader(self.encoding)(s)
self.assertRaises(UnicodeError, f.read)
def test_partial(self):
self.check_partial(
"\x00\xff\u0100\uffff\U00010000",
[
"", # first byte of BOM read
"", # second byte of BOM read => byteorder known
"",
"\x00",
"\x00",
"\x00\xff",
"\x00\xff",
"\x00\xff\u0100",
"\x00\xff\u0100",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff\U00010000",
]
)
def test_handlers(self):
self.assertEqual(('\ufffd', 1),
codecs.utf_16_decode(b'\x01', 'replace', True))
self.assertEqual(('', 1),
codecs.utf_16_decode(b'\x01', 'ignore', True))
def test_errors(self):
self.assertRaises(UnicodeDecodeError, codecs.utf_16_decode,
b"\xff", "strict", True)
def test_decoder_state(self):
self.check_state_handling_decode(self.encoding,
"spamspam", self.spamle)
self.check_state_handling_decode(self.encoding,
"spamspam", self.spambe)
def test_bug691291(self):
# Files are always opened in binary mode, even if no binary mode was
# specified. This means that no automatic conversion of '\n' is done
# on reading and writing.
s1 = 'Hello\r\nworld\r\n'
s = s1.encode(self.encoding)
self.addCleanup(support.unlink, support.TESTFN)
with open(support.TESTFN, 'wb') as fp:
fp.write(s)
with codecs.open(support.TESTFN, 'U', encoding=self.encoding) as reader:
self.assertEqual(reader.read(), s1)
class UTF16LETest(ReadTest, unittest.TestCase):
encoding = "utf-16-le"
def test_partial(self):
self.check_partial(
"\x00\xff\u0100\uffff\U00010000",
[
"",
"\x00",
"\x00",
"\x00\xff",
"\x00\xff",
"\x00\xff\u0100",
"\x00\xff\u0100",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff\U00010000",
]
)
def test_errors(self):
tests = [
(b'\xff', '\ufffd'),
(b'A\x00Z', 'A\ufffd'),
(b'A\x00B\x00C\x00D\x00Z', 'ABCD\ufffd'),
(b'\x00\xd8', '\ufffd'),
(b'\x00\xd8A', '\ufffd'),
(b'\x00\xd8A\x00', '\ufffdA'),
(b'\x00\xdcA\x00', '\ufffdA'),
]
for raw, expected in tests:
self.assertRaises(UnicodeDecodeError, codecs.utf_16_le_decode,
raw, 'strict', True)
self.assertEqual(raw.decode('utf-16le', 'replace'), expected)
def test_nonbmp(self):
self.assertEqual("\U00010203".encode(self.encoding),
b'\x00\xd8\x03\xde')
self.assertEqual(b'\x00\xd8\x03\xde'.decode(self.encoding),
"\U00010203")
class UTF16BETest(ReadTest, unittest.TestCase):
encoding = "utf-16-be"
def test_partial(self):
self.check_partial(
"\x00\xff\u0100\uffff\U00010000",
[
"",
"\x00",
"\x00",
"\x00\xff",
"\x00\xff",
"\x00\xff\u0100",
"\x00\xff\u0100",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff\U00010000",
]
)
def test_errors(self):
tests = [
(b'\xff', '\ufffd'),
(b'\x00A\xff', 'A\ufffd'),
(b'\x00A\x00B\x00C\x00DZ', 'ABCD\ufffd'),
(b'\xd8\x00', '\ufffd'),
(b'\xd8\x00\xdc', '\ufffd'),
(b'\xd8\x00\x00A', '\ufffdA'),
(b'\xdc\x00\x00A', '\ufffdA'),
]
for raw, expected in tests:
self.assertRaises(UnicodeDecodeError, codecs.utf_16_be_decode,
raw, 'strict', True)
self.assertEqual(raw.decode('utf-16be', 'replace'), expected)
def test_nonbmp(self):
self.assertEqual("\U00010203".encode(self.encoding),
b'\xd8\x00\xde\x03')
self.assertEqual(b'\xd8\x00\xde\x03'.decode(self.encoding),
"\U00010203")
class UTF8Test(ReadTest, unittest.TestCase):
encoding = "utf-8"
def test_partial(self):
self.check_partial(
"\x00\xff\u07ff\u0800\uffff\U00010000",
[
"\x00",
"\x00",
"\x00\xff",
"\x00\xff",
"\x00\xff\u07ff",
"\x00\xff\u07ff",
"\x00\xff\u07ff",
"\x00\xff\u07ff\u0800",
"\x00\xff\u07ff\u0800",
"\x00\xff\u07ff\u0800",
"\x00\xff\u07ff\u0800\uffff",
"\x00\xff\u07ff\u0800\uffff",
"\x00\xff\u07ff\u0800\uffff",
"\x00\xff\u07ff\u0800\uffff",
"\x00\xff\u07ff\u0800\uffff\U00010000",
]
)
def test_decoder_state(self):
u = "\x00\x7f\x80\xff\u0100\u07ff\u0800\uffff\U0010ffff"
self.check_state_handling_decode(self.encoding,
u, u.encode(self.encoding))
def test_lone_surrogates(self):
self.assertRaises(UnicodeEncodeError, "\ud800".encode, "utf-8")
self.assertRaises(UnicodeDecodeError, b"\xed\xa0\x80".decode, "utf-8")
self.assertEqual("[\uDC80]".encode("utf-8", "backslashreplace"),
b'[\\udc80]')
self.assertEqual("[\uDC80]".encode("utf-8", "xmlcharrefreplace"),
b'[&#56448;]')
self.assertEqual("[\uDC80]".encode("utf-8", "surrogateescape"),
b'[\x80]')
self.assertEqual("[\uDC80]".encode("utf-8", "ignore"),
b'[]')
self.assertEqual("[\uDC80]".encode("utf-8", "replace"),
b'[?]')
def test_surrogatepass_handler(self):
self.assertEqual("abc\ud800def".encode("utf-8", "surrogatepass"),
b"abc\xed\xa0\x80def")
self.assertEqual(b"abc\xed\xa0\x80def".decode("utf-8", "surrogatepass"),
"abc\ud800def")
self.assertEqual("\U00010fff\uD800".encode("utf-8", "surrogatepass"),
b"\xf0\x90\xbf\xbf\xed\xa0\x80")
self.assertEqual(b"\xf0\x90\xbf\xbf\xed\xa0\x80".decode("utf-8", "surrogatepass"),
"\U00010fff\uD800")
self.assertTrue(codecs.lookup_error("surrogatepass"))
with self.assertRaises(UnicodeDecodeError):
b"abc\xed\xa0".decode("utf-8", "surrogatepass")
with self.assertRaises(UnicodeDecodeError):
b"abc\xed\xa0z".decode("utf-8", "surrogatepass")
@unittest.skipUnless(sys.platform == 'win32',
'cp65001 is a Windows-only codec')
class CP65001Test(ReadTest, unittest.TestCase):
encoding = "cp65001"
def test_encode(self):
tests = [
('abc', 'strict', b'abc'),
('\xe9\u20ac', 'strict', b'\xc3\xa9\xe2\x82\xac'),
('\U0010ffff', 'strict', b'\xf4\x8f\xbf\xbf'),
]
if VISTA_OR_LATER:
tests.extend((
('\udc80', 'strict', None),
('\udc80', 'ignore', b''),
('\udc80', 'replace', b'?'),
('\udc80', 'backslashreplace', b'\\udc80'),
('\udc80', 'surrogatepass', b'\xed\xb2\x80'),
))
else:
tests.append(('\udc80', 'strict', b'\xed\xb2\x80'))
for text, errors, expected in tests:
if expected is not None:
try:
encoded = text.encode('cp65001', errors)
except UnicodeEncodeError as err:
self.fail('Unable to encode %a to cp65001 with '
'errors=%r: %s' % (text, errors, err))
self.assertEqual(encoded, expected,
'%a.encode("cp65001", %r)=%a != %a'
% (text, errors, encoded, expected))
else:
self.assertRaises(UnicodeEncodeError,
text.encode, "cp65001", errors)
def test_decode(self):
tests = [
(b'abc', 'strict', 'abc'),
(b'\xc3\xa9\xe2\x82\xac', 'strict', '\xe9\u20ac'),
(b'\xf4\x8f\xbf\xbf', 'strict', '\U0010ffff'),
(b'\xef\xbf\xbd', 'strict', '\ufffd'),
(b'[\xc3\xa9]', 'strict', '[\xe9]'),
# invalid bytes
(b'[\xff]', 'strict', None),
(b'[\xff]', 'ignore', '[]'),
(b'[\xff]', 'replace', '[\ufffd]'),
(b'[\xff]', 'surrogateescape', '[\udcff]'),
]
if VISTA_OR_LATER:
tests.extend((
(b'[\xed\xb2\x80]', 'strict', None),
(b'[\xed\xb2\x80]', 'ignore', '[]'),
(b'[\xed\xb2\x80]', 'replace', '[\ufffd\ufffd\ufffd]'),
))
else:
tests.extend((
(b'[\xed\xb2\x80]', 'strict', '[\udc80]'),
))
for raw, errors, expected in tests:
if expected is not None:
try:
decoded = raw.decode('cp65001', errors)
except UnicodeDecodeError as err:
self.fail('Unable to decode %a from cp65001 with '
'errors=%r: %s' % (raw, errors, err))
self.assertEqual(decoded, expected,
'%a.decode("cp65001", %r)=%a != %a'
% (raw, errors, decoded, expected))
else:
self.assertRaises(UnicodeDecodeError,
raw.decode, 'cp65001', errors)
@unittest.skipUnless(VISTA_OR_LATER, 'require Windows Vista or later')
def test_lone_surrogates(self):
self.assertRaises(UnicodeEncodeError, "\ud800".encode, "cp65001")
self.assertRaises(UnicodeDecodeError, b"\xed\xa0\x80".decode, "cp65001")
self.assertEqual("[\uDC80]".encode("cp65001", "backslashreplace"),
b'[\\udc80]')
self.assertEqual("[\uDC80]".encode("cp65001", "xmlcharrefreplace"),
b'[&#56448;]')
self.assertEqual("[\uDC80]".encode("cp65001", "surrogateescape"),
b'[\x80]')
self.assertEqual("[\uDC80]".encode("cp65001", "ignore"),
b'[]')
self.assertEqual("[\uDC80]".encode("cp65001", "replace"),
b'[?]')
@unittest.skipUnless(VISTA_OR_LATER, 'require Windows Vista or later')
def test_surrogatepass_handler(self):
self.assertEqual("abc\ud800def".encode("cp65001", "surrogatepass"),
b"abc\xed\xa0\x80def")
self.assertEqual(b"abc\xed\xa0\x80def".decode("cp65001", "surrogatepass"),
"abc\ud800def")
self.assertEqual("\U00010fff\uD800".encode("cp65001", "surrogatepass"),
b"\xf0\x90\xbf\xbf\xed\xa0\x80")
self.assertEqual(b"\xf0\x90\xbf\xbf\xed\xa0\x80".decode("cp65001", "surrogatepass"),
"\U00010fff\uD800")
self.assertTrue(codecs.lookup_error("surrogatepass"))
class UTF7Test(ReadTest, unittest.TestCase):
encoding = "utf-7"
def test_partial(self):
self.check_partial(
"a+-b",
[
"a",
"a",
"a+",
"a+-",
"a+-b",
]
)
class UTF16ExTest(unittest.TestCase):
def test_errors(self):
self.assertRaises(UnicodeDecodeError, codecs.utf_16_ex_decode, b"\xff", "strict", 0, True)
def test_bad_args(self):
self.assertRaises(TypeError, codecs.utf_16_ex_decode)
class ReadBufferTest(unittest.TestCase):
def test_array(self):
import array
self.assertEqual(
codecs.readbuffer_encode(array.array("b", b"spam")),
(b"spam", 4)
)
def test_empty(self):
self.assertEqual(codecs.readbuffer_encode(""), (b"", 0))
def test_bad_args(self):
self.assertRaises(TypeError, codecs.readbuffer_encode)
self.assertRaises(TypeError, codecs.readbuffer_encode, 42)
class UTF8SigTest(ReadTest, unittest.TestCase):
encoding = "utf-8-sig"
def test_partial(self):
self.check_partial(
"\ufeff\x00\xff\u07ff\u0800\uffff\U00010000",
[
"",
"",
"", # First BOM has been read and skipped
"",
"",
"\ufeff", # Second BOM has been read and emitted
"\ufeff\x00", # "\x00" read and emitted
"\ufeff\x00", # First byte of encoded "\xff" read
"\ufeff\x00\xff", # Second byte of encoded "\xff" read
"\ufeff\x00\xff", # First byte of encoded "\u07ff" read
"\ufeff\x00\xff\u07ff", # Second byte of encoded "\u07ff" read
"\ufeff\x00\xff\u07ff",
"\ufeff\x00\xff\u07ff",
"\ufeff\x00\xff\u07ff\u0800",
"\ufeff\x00\xff\u07ff\u0800",
"\ufeff\x00\xff\u07ff\u0800",
"\ufeff\x00\xff\u07ff\u0800\uffff",
"\ufeff\x00\xff\u07ff\u0800\uffff",
"\ufeff\x00\xff\u07ff\u0800\uffff",
"\ufeff\x00\xff\u07ff\u0800\uffff",
"\ufeff\x00\xff\u07ff\u0800\uffff\U00010000",
]
)
def test_bug1601501(self):
# SF bug #1601501: check that the codec works with a buffer
self.assertEqual(str(b"\xef\xbb\xbf", "utf-8-sig"), "")
def test_bom(self):
d = codecs.getincrementaldecoder("utf-8-sig")()
s = "spam"
self.assertEqual(d.decode(s.encode("utf-8-sig")), s)
def test_stream_bom(self):
unistring = "ABC\u00A1\u2200XYZ"
bytestring = codecs.BOM_UTF8 + b"ABC\xC2\xA1\xE2\x88\x80XYZ"
reader = codecs.getreader("utf-8-sig")
for sizehint in [None] + list(range(1, 11)) + \
[64, 128, 256, 512, 1024]:
istream = reader(io.BytesIO(bytestring))
ostream = io.StringIO()
while 1:
if sizehint is not None:
data = istream.read(sizehint)
else:
data = istream.read()
if not data:
break
ostream.write(data)
got = ostream.getvalue()
self.assertEqual(got, unistring)
def test_stream_bare(self):
unistring = "ABC\u00A1\u2200XYZ"
bytestring = b"ABC\xC2\xA1\xE2\x88\x80XYZ"
reader = codecs.getreader("utf-8-sig")
for sizehint in [None] + list(range(1, 11)) + \
[64, 128, 256, 512, 1024]:
istream = reader(io.BytesIO(bytestring))
ostream = io.StringIO()
while 1:
if sizehint is not None:
data = istream.read(sizehint)
else:
data = istream.read()
if not data:
break
ostream.write(data)
got = ostream.getvalue()
self.assertEqual(got, unistring)
class EscapeDecodeTest(unittest.TestCase):
def test_empty(self):
self.assertEqual(codecs.escape_decode(b""), (b"", 0))
def test_raw(self):
decode = codecs.escape_decode
for b in range(256):
b = bytes([b])
if b != b'\\':
self.assertEqual(decode(b + b'0'), (b + b'0', 2))
def test_escape(self):
decode = codecs.escape_decode
check = coding_checker(self, decode)
check(b"[\\\n]", b"[]")
check(br'[\"]', b'["]')
check(br"[\']", b"[']")
check(br"[\\]", br"[\]")
check(br"[\a]", b"[\x07]")
check(br"[\b]", b"[\x08]")
check(br"[\t]", b"[\x09]")
check(br"[\n]", b"[\x0a]")
check(br"[\v]", b"[\x0b]")
check(br"[\f]", b"[\x0c]")
check(br"[\r]", b"[\x0d]")
check(br"[\7]", b"[\x07]")
check(br"[\8]", br"[\8]")
check(br"[\78]", b"[\x078]")
check(br"[\41]", b"[!]")
check(br"[\418]", b"[!8]")
check(br"[\101]", b"[A]")
check(br"[\1010]", b"[A0]")
check(br"[\501]", b"[A]")
check(br"[\x41]", b"[A]")
check(br"[\X41]", br"[\X41]")
check(br"[\x410]", b"[A0]")
for b in range(256):
if b not in b'\n"\'\\abtnvfr01234567x':
b = bytes([b])
check(b'\\' + b, b'\\' + b)
def test_errors(self):
decode = codecs.escape_decode
self.assertRaises(ValueError, decode, br"\x")
self.assertRaises(ValueError, decode, br"[\x]")
self.assertEqual(decode(br"[\x]\x", "ignore"), (b"[]", 6))
self.assertEqual(decode(br"[\x]\x", "replace"), (b"[?]?", 6))
self.assertRaises(ValueError, decode, br"\x0")
self.assertRaises(ValueError, decode, br"[\x0]")
self.assertEqual(decode(br"[\x0]\x0", "ignore"), (b"[]", 8))
self.assertEqual(decode(br"[\x0]\x0", "replace"), (b"[?]?", 8))
class RecodingTest(unittest.TestCase):
def test_recoding(self):
f = io.BytesIO()
f2 = codecs.EncodedFile(f, "unicode_internal", "utf-8")
f2.write("a")
f2.close()
# Python used to crash on this at exit because of a refcount
# bug in _codecsmodule.c
# From RFC 3492
punycode_testcases = [
# A Arabic (Egyptian):
("\u0644\u064A\u0647\u0645\u0627\u0628\u062A\u0643\u0644"
"\u0645\u0648\u0634\u0639\u0631\u0628\u064A\u061F",
b"egbpdaj6bu4bxfgehfvwxn"),
# B Chinese (simplified):
("\u4ED6\u4EEC\u4E3A\u4EC0\u4E48\u4E0D\u8BF4\u4E2D\u6587",
b"ihqwcrb4cv8a8dqg056pqjye"),
# C Chinese (traditional):
("\u4ED6\u5011\u7232\u4EC0\u9EBD\u4E0D\u8AAA\u4E2D\u6587",
b"ihqwctvzc91f659drss3x8bo0yb"),
# D Czech: Pro<ccaron>prost<ecaron>nemluv<iacute><ccaron>esky
("\u0050\u0072\u006F\u010D\u0070\u0072\u006F\u0073\u0074"
"\u011B\u006E\u0065\u006D\u006C\u0075\u0076\u00ED\u010D"
"\u0065\u0073\u006B\u0079",
b"Proprostnemluvesky-uyb24dma41a"),
# E Hebrew:
("\u05DC\u05DE\u05D4\u05D4\u05DD\u05E4\u05E9\u05D5\u05D8"
"\u05DC\u05D0\u05DE\u05D3\u05D1\u05E8\u05D9\u05DD\u05E2"
"\u05D1\u05E8\u05D9\u05EA",
b"4dbcagdahymbxekheh6e0a7fei0b"),
# F Hindi (Devanagari):
("\u092F\u0939\u0932\u094B\u0917\u0939\u093F\u0928\u094D"
"\u0926\u0940\u0915\u094D\u092F\u094B\u0902\u0928\u0939"
"\u0940\u0902\u092C\u094B\u0932\u0938\u0915\u0924\u0947"
"\u0939\u0948\u0902",
b"i1baa7eci9glrd9b2ae1bj0hfcgg6iyaf8o0a1dig0cd"),
#(G) Japanese (kanji and hiragana):
("\u306A\u305C\u307F\u3093\u306A\u65E5\u672C\u8A9E\u3092"
"\u8A71\u3057\u3066\u304F\u308C\u306A\u3044\u306E\u304B",
b"n8jok5ay5dzabd5bym9f0cm5685rrjetr6pdxa"),
# (H) Korean (Hangul syllables):
("\uC138\uACC4\uC758\uBAA8\uB4E0\uC0AC\uB78C\uB4E4\uC774"
"\uD55C\uAD6D\uC5B4\uB97C\uC774\uD574\uD55C\uB2E4\uBA74"
"\uC5BC\uB9C8\uB098\uC88B\uC744\uAE4C",
b"989aomsvi5e83db1d2a355cv1e0vak1dwrv93d5xbh15a0dt30a5j"
b"psd879ccm6fea98c"),
# (I) Russian (Cyrillic):
("\u043F\u043E\u0447\u0435\u043C\u0443\u0436\u0435\u043E"
"\u043D\u0438\u043D\u0435\u0433\u043E\u0432\u043E\u0440"
"\u044F\u0442\u043F\u043E\u0440\u0443\u0441\u0441\u043A"
"\u0438",
b"b1abfaaepdrnnbgefbaDotcwatmq2g4l"),
# (J) Spanish: Porqu<eacute>nopuedensimplementehablarenEspa<ntilde>ol
("\u0050\u006F\u0072\u0071\u0075\u00E9\u006E\u006F\u0070"
"\u0075\u0065\u0064\u0065\u006E\u0073\u0069\u006D\u0070"
"\u006C\u0065\u006D\u0065\u006E\u0074\u0065\u0068\u0061"
"\u0062\u006C\u0061\u0072\u0065\u006E\u0045\u0073\u0070"
"\u0061\u00F1\u006F\u006C",
b"PorqunopuedensimplementehablarenEspaol-fmd56a"),
# (K) Vietnamese:
# T<adotbelow>isaoh<odotbelow>kh<ocirc>ngth<ecirchookabove>ch\
# <ihookabove>n<oacute>iti<ecircacute>ngVi<ecircdotbelow>t
("\u0054\u1EA1\u0069\u0073\u0061\u006F\u0068\u1ECD\u006B"
"\u0068\u00F4\u006E\u0067\u0074\u0068\u1EC3\u0063\u0068"
"\u1EC9\u006E\u00F3\u0069\u0074\u0069\u1EBF\u006E\u0067"
"\u0056\u0069\u1EC7\u0074",
b"TisaohkhngthchnitingVit-kjcr8268qyxafd2f1b9g"),
#(L) 3<nen>B<gumi><kinpachi><sensei>
("\u0033\u5E74\u0042\u7D44\u91D1\u516B\u5148\u751F",
b"3B-ww4c5e180e575a65lsy2b"),
# (M) <amuro><namie>-with-SUPER-MONKEYS
("\u5B89\u5BA4\u5948\u7F8E\u6075\u002D\u0077\u0069\u0074"
"\u0068\u002D\u0053\u0055\u0050\u0045\u0052\u002D\u004D"
"\u004F\u004E\u004B\u0045\u0059\u0053",
b"-with-SUPER-MONKEYS-pc58ag80a8qai00g7n9n"),
# (N) Hello-Another-Way-<sorezore><no><basho>
("\u0048\u0065\u006C\u006C\u006F\u002D\u0041\u006E\u006F"
"\u0074\u0068\u0065\u0072\u002D\u0057\u0061\u0079\u002D"
"\u305D\u308C\u305E\u308C\u306E\u5834\u6240",
b"Hello-Another-Way--fc4qua05auwb3674vfr0b"),
# (O) <hitotsu><yane><no><shita>2
("\u3072\u3068\u3064\u5C4B\u6839\u306E\u4E0B\u0032",
b"2-u9tlzr9756bt3uc0v"),
# (P) Maji<de>Koi<suru>5<byou><mae>
("\u004D\u0061\u006A\u0069\u3067\u004B\u006F\u0069\u3059"
"\u308B\u0035\u79D2\u524D",
b"MajiKoi5-783gue6qz075azm5e"),
# (Q) <pafii>de<runba>
("\u30D1\u30D5\u30A3\u30FC\u0064\u0065\u30EB\u30F3\u30D0",
b"de-jg4avhby1noc0d"),
# (R) <sono><supiido><de>
("\u305D\u306E\u30B9\u30D4\u30FC\u30C9\u3067",
b"d9juau41awczczp"),
# (S) -> $1.00 <-
("\u002D\u003E\u0020\u0024\u0031\u002E\u0030\u0030\u0020"
"\u003C\u002D",
b"-> $1.00 <--")
]
for i in punycode_testcases:
if len(i)!=2:
print(repr(i))
class PunycodeTest(unittest.TestCase):
def test_encode(self):
for uni, puny in punycode_testcases:
# Need to convert both strings to lower case, since
# some of the extended encodings use upper case, but our
# code produces only lower case. Converting just puny to
# lower is also insufficient, since some of the input characters
# are upper case.
self.assertEqual(
str(uni.encode("punycode"), "ascii").lower(),
str(puny, "ascii").lower()
)
def test_decode(self):
for uni, puny in punycode_testcases:
self.assertEqual(uni, puny.decode("punycode"))
puny = puny.decode("ascii").encode("ascii")
self.assertEqual(uni, puny.decode("punycode"))
class UnicodeInternalTest(unittest.TestCase):
@unittest.skipUnless(SIZEOF_WCHAR_T == 4, 'specific to 32-bit wchar_t')
def test_bug1251300(self):
# Decoding with unicode_internal used to not correctly handle "code
# points" above 0x10ffff on UCS-4 builds.
ok = [
(b"\x00\x10\xff\xff", "\U0010ffff"),
(b"\x00\x00\x01\x01", "\U00000101"),
(b"", ""),
]
not_ok = [
b"\x7f\xff\xff\xff",
b"\x80\x00\x00\x00",
b"\x81\x00\x00\x00",
b"\x00",
b"\x00\x00\x00\x00\x00",
]
for internal, uni in ok:
if sys.byteorder == "little":
internal = bytes(reversed(internal))
with support.check_warnings():
self.assertEqual(uni, internal.decode("unicode_internal"))
for internal in not_ok:
if sys.byteorder == "little":
internal = bytes(reversed(internal))
with support.check_warnings(('unicode_internal codec has been '
'deprecated', DeprecationWarning)):
self.assertRaises(UnicodeDecodeError, internal.decode,
"unicode_internal")
if sys.byteorder == "little":
invalid = b"\x00\x00\x11\x00"
else:
invalid = b"\x00\x11\x00\x00"
with support.check_warnings():
self.assertRaises(UnicodeDecodeError,
invalid.decode, "unicode_internal")
with support.check_warnings():
self.assertEqual(invalid.decode("unicode_internal", "replace"),
'\ufffd')
@unittest.skipUnless(SIZEOF_WCHAR_T == 4, 'specific to 32-bit wchar_t')
def test_decode_error_attributes(self):
try:
with support.check_warnings(('unicode_internal codec has been '
'deprecated', DeprecationWarning)):
b"\x00\x00\x00\x00\x00\x11\x11\x00".decode("unicode_internal")
except UnicodeDecodeError as ex:
self.assertEqual("unicode_internal", ex.encoding)
self.assertEqual(b"\x00\x00\x00\x00\x00\x11\x11\x00", ex.object)
self.assertEqual(4, ex.start)
self.assertEqual(8, ex.end)
else:
self.fail()
@unittest.skipUnless(SIZEOF_WCHAR_T == 4, 'specific to 32-bit wchar_t')
def test_decode_callback(self):
codecs.register_error("UnicodeInternalTest", codecs.ignore_errors)
decoder = codecs.getdecoder("unicode_internal")
with support.check_warnings(('unicode_internal codec has been '
'deprecated', DeprecationWarning)):
ab = "ab".encode("unicode_internal").decode()
ignored = decoder(bytes("%s\x22\x22\x22\x22%s" % (ab[:4], ab[4:]),
"ascii"),
"UnicodeInternalTest")
self.assertEqual(("ab", 12), ignored)
def test_encode_length(self):
with support.check_warnings(('unicode_internal codec has been '
'deprecated', DeprecationWarning)):
# Issue 3739
encoder = codecs.getencoder("unicode_internal")
self.assertEqual(encoder("a")[1], 1)
self.assertEqual(encoder("\xe9\u0142")[1], 2)
self.assertEqual(codecs.escape_encode(br'\x00')[1], 4)
# From http://www.gnu.org/software/libidn/draft-josefsson-idn-test-vectors.html
nameprep_tests = [
# 3.1 Map to nothing.
(b'foo\xc2\xad\xcd\x8f\xe1\xa0\x86\xe1\xa0\x8bbar'
b'\xe2\x80\x8b\xe2\x81\xa0baz\xef\xb8\x80\xef\xb8\x88\xef'
b'\xb8\x8f\xef\xbb\xbf',
b'foobarbaz'),
# 3.2 Case folding ASCII U+0043 U+0041 U+0046 U+0045.
(b'CAFE',
b'cafe'),
# 3.3 Case folding 8bit U+00DF (german sharp s).
# The original test case is bogus; it says \xc3\xdf
(b'\xc3\x9f',
b'ss'),
# 3.4 Case folding U+0130 (turkish capital I with dot).
(b'\xc4\xb0',
b'i\xcc\x87'),
# 3.5 Case folding multibyte U+0143 U+037A.
(b'\xc5\x83\xcd\xba',
b'\xc5\x84 \xce\xb9'),
# 3.6 Case folding U+2121 U+33C6 U+1D7BB.
# XXX: skip this as it fails in UCS-2 mode
#('\xe2\x84\xa1\xe3\x8f\x86\xf0\x9d\x9e\xbb',
# 'telc\xe2\x88\x95kg\xcf\x83'),
(None, None),
# 3.7 Normalization of U+006a U+030c U+00A0 U+00AA.
(b'j\xcc\x8c\xc2\xa0\xc2\xaa',
b'\xc7\xb0 a'),
# 3.8 Case folding U+1FB7 and normalization.
(b'\xe1\xbe\xb7',
b'\xe1\xbe\xb6\xce\xb9'),
# 3.9 Self-reverting case folding U+01F0 and normalization.
# The original test case is bogus, it says `\xc7\xf0'
(b'\xc7\xb0',
b'\xc7\xb0'),
# 3.10 Self-reverting case folding U+0390 and normalization.
(b'\xce\x90',
b'\xce\x90'),
# 3.11 Self-reverting case folding U+03B0 and normalization.
(b'\xce\xb0',
b'\xce\xb0'),
# 3.12 Self-reverting case folding U+1E96 and normalization.
(b'\xe1\xba\x96',
b'\xe1\xba\x96'),
# 3.13 Self-reverting case folding U+1F56 and normalization.
(b'\xe1\xbd\x96',
b'\xe1\xbd\x96'),
# 3.14 ASCII space character U+0020.
(b' ',
b' '),
# 3.15 Non-ASCII 8bit space character U+00A0.
(b'\xc2\xa0',
b' '),
# 3.16 Non-ASCII multibyte space character U+1680.
(b'\xe1\x9a\x80',
None),
# 3.17 Non-ASCII multibyte space character U+2000.
(b'\xe2\x80\x80',
b' '),
# 3.18 Zero Width Space U+200b.
(b'\xe2\x80\x8b',
b''),
# 3.19 Non-ASCII multibyte space character U+3000.
(b'\xe3\x80\x80',
b' '),
# 3.20 ASCII control characters U+0010 U+007F.
(b'\x10\x7f',
b'\x10\x7f'),
# 3.21 Non-ASCII 8bit control character U+0085.
(b'\xc2\x85',
None),
# 3.22 Non-ASCII multibyte control character U+180E.
(b'\xe1\xa0\x8e',
None),
# 3.23 Zero Width No-Break Space U+FEFF.
(b'\xef\xbb\xbf',
b''),
# 3.24 Non-ASCII control character U+1D175.
(b'\xf0\x9d\x85\xb5',
None),
# 3.25 Plane 0 private use character U+F123.
(b'\xef\x84\xa3',
None),
# 3.26 Plane 15 private use character U+F1234.
(b'\xf3\xb1\x88\xb4',
None),
# 3.27 Plane 16 private use character U+10F234.
(b'\xf4\x8f\x88\xb4',
None),
# 3.28 Non-character code point U+8FFFE.
(b'\xf2\x8f\xbf\xbe',
None),
# 3.29 Non-character code point U+10FFFF.
(b'\xf4\x8f\xbf\xbf',
None),
# 3.30 Surrogate code U+DF42.
(b'\xed\xbd\x82',
None),
# 3.31 Non-plain text character U+FFFD.
(b'\xef\xbf\xbd',
None),
# 3.32 Ideographic description character U+2FF5.
(b'\xe2\xbf\xb5',
None),
# 3.33 Display property character U+0341.
(b'\xcd\x81',
b'\xcc\x81'),
# 3.34 Left-to-right mark U+200E.
(b'\xe2\x80\x8e',
None),
# 3.35 Deprecated U+202A.
(b'\xe2\x80\xaa',
None),
# 3.36 Language tagging character U+E0001.
(b'\xf3\xa0\x80\x81',
None),
# 3.37 Language tagging character U+E0042.
(b'\xf3\xa0\x81\x82',
None),
# 3.38 Bidi: RandALCat character U+05BE and LCat characters.
(b'foo\xd6\xbebar',
None),
# 3.39 Bidi: RandALCat character U+FD50 and LCat characters.
(b'foo\xef\xb5\x90bar',
None),
# 3.40 Bidi: RandALCat character U+FB38 and LCat characters.
(b'foo\xef\xb9\xb6bar',
b'foo \xd9\x8ebar'),
# 3.41 Bidi: RandALCat without trailing RandALCat U+0627 U+0031.
(b'\xd8\xa71',
None),
# 3.42 Bidi: RandALCat character U+0627 U+0031 U+0628.
(b'\xd8\xa71\xd8\xa8',
b'\xd8\xa71\xd8\xa8'),
# 3.43 Unassigned code point U+E0002.
# Skip this test as we allow unassigned
#(b'\xf3\xa0\x80\x82',
# None),
(None, None),
# 3.44 Larger test (shrinking).
# Original test case reads \xc3\xdf
(b'X\xc2\xad\xc3\x9f\xc4\xb0\xe2\x84\xa1j\xcc\x8c\xc2\xa0\xc2'
b'\xaa\xce\xb0\xe2\x80\x80',
b'xssi\xcc\x87tel\xc7\xb0 a\xce\xb0 '),
# 3.45 Larger test (expanding).
# Original test case reads \xc3\x9f
(b'X\xc3\x9f\xe3\x8c\x96\xc4\xb0\xe2\x84\xa1\xe2\x92\x9f\xe3\x8c'
b'\x80',
b'xss\xe3\x82\xad\xe3\x83\xad\xe3\x83\xa1\xe3\x83\xbc\xe3'
b'\x83\x88\xe3\x83\xabi\xcc\x87tel\x28d\x29\xe3\x82'
b'\xa2\xe3\x83\x91\xe3\x83\xbc\xe3\x83\x88')
]
class NameprepTest(unittest.TestCase):
def test_nameprep(self):
from encodings.idna import nameprep
for pos, (orig, prepped) in enumerate(nameprep_tests):
if orig is None:
# Skipped
continue
# The Unicode strings are given in UTF-8
orig = str(orig, "utf-8", "surrogatepass")
if prepped is None:
# Input contains prohibited characters
self.assertRaises(UnicodeError, nameprep, orig)
else:
prepped = str(prepped, "utf-8", "surrogatepass")
try:
self.assertEqual(nameprep(orig), prepped)
except Exception as e:
raise support.TestFailed("Test 3.%d: %s" % (pos+1, str(e)))
class IDNACodecTest(unittest.TestCase):
def test_builtin_decode(self):
self.assertEqual(str(b"python.org", "idna"), "python.org")
self.assertEqual(str(b"python.org.", "idna"), "python.org.")
self.assertEqual(str(b"xn--pythn-mua.org", "idna"), "pyth\xf6n.org")
self.assertEqual(str(b"xn--pythn-mua.org.", "idna"), "pyth\xf6n.org.")
def test_builtin_encode(self):
self.assertEqual("python.org".encode("idna"), b"python.org")
self.assertEqual("python.org.".encode("idna"), b"python.org.")
self.assertEqual("pyth\xf6n.org".encode("idna"), b"xn--pythn-mua.org")
self.assertEqual("pyth\xf6n.org.".encode("idna"), b"xn--pythn-mua.org.")
def test_stream(self):
r = codecs.getreader("idna")(io.BytesIO(b"abc"))
r.read(3)
self.assertEqual(r.read(), "")
def test_incremental_decode(self):
self.assertEqual(
"".join(codecs.iterdecode((bytes([c]) for c in b"python.org"), "idna")),
"python.org"
)
self.assertEqual(
"".join(codecs.iterdecode((bytes([c]) for c in b"python.org."), "idna")),
"python.org."
)
self.assertEqual(
"".join(codecs.iterdecode((bytes([c]) for c in b"xn--pythn-mua.org."), "idna")),
"pyth\xf6n.org."
)
self.assertEqual(
"".join(codecs.iterdecode((bytes([c]) for c in b"xn--pythn-mua.org."), "idna")),
"pyth\xf6n.org."
)
decoder = codecs.getincrementaldecoder("idna")()
self.assertEqual(decoder.decode(b"xn--xam", ), "")
self.assertEqual(decoder.decode(b"ple-9ta.o", ), "\xe4xample.")
self.assertEqual(decoder.decode(b"rg"), "")
self.assertEqual(decoder.decode(b"", True), "org")
decoder.reset()
self.assertEqual(decoder.decode(b"xn--xam", ), "")
self.assertEqual(decoder.decode(b"ple-9ta.o", ), "\xe4xample.")
self.assertEqual(decoder.decode(b"rg."), "org.")
self.assertEqual(decoder.decode(b"", True), "")
def test_incremental_encode(self):
self.assertEqual(
b"".join(codecs.iterencode("python.org", "idna")),
b"python.org"
)
self.assertEqual(
b"".join(codecs.iterencode("python.org.", "idna")),
b"python.org."
)
self.assertEqual(
b"".join(codecs.iterencode("pyth\xf6n.org.", "idna")),
b"xn--pythn-mua.org."
)
self.assertEqual(
b"".join(codecs.iterencode("pyth\xf6n.org.", "idna")),
b"xn--pythn-mua.org."
)
encoder = codecs.getincrementalencoder("idna")()
self.assertEqual(encoder.encode("\xe4x"), b"")
self.assertEqual(encoder.encode("ample.org"), b"xn--xample-9ta.")
self.assertEqual(encoder.encode("", True), b"org")
encoder.reset()
self.assertEqual(encoder.encode("\xe4x"), b"")
self.assertEqual(encoder.encode("ample.org."), b"xn--xample-9ta.org.")
self.assertEqual(encoder.encode("", True), b"")
class CodecsModuleTest(unittest.TestCase):
def test_decode(self):
self.assertEqual(codecs.decode(b'\xe4\xf6\xfc', 'latin-1'),
'\xe4\xf6\xfc')
self.assertRaises(TypeError, codecs.decode)
self.assertEqual(codecs.decode(b'abc'), 'abc')
self.assertRaises(UnicodeDecodeError, codecs.decode, b'\xff', 'ascii')
def test_encode(self):
self.assertEqual(codecs.encode('\xe4\xf6\xfc', 'latin-1'),
b'\xe4\xf6\xfc')
self.assertRaises(TypeError, codecs.encode)
self.assertRaises(LookupError, codecs.encode, "foo", "__spam__")
self.assertEqual(codecs.encode('abc'), b'abc')
self.assertRaises(UnicodeEncodeError, codecs.encode, '\xffff', 'ascii')
def test_register(self):
self.assertRaises(TypeError, codecs.register)
self.assertRaises(TypeError, codecs.register, 42)
def test_lookup(self):
self.assertRaises(TypeError, codecs.lookup)
self.assertRaises(LookupError, codecs.lookup, "__spam__")
self.assertRaises(LookupError, codecs.lookup, " ")
def test_getencoder(self):
self.assertRaises(TypeError, codecs.getencoder)
self.assertRaises(LookupError, codecs.getencoder, "__spam__")
def test_getdecoder(self):
self.assertRaises(TypeError, codecs.getdecoder)
self.assertRaises(LookupError, codecs.getdecoder, "__spam__")
def test_getreader(self):
self.assertRaises(TypeError, codecs.getreader)
self.assertRaises(LookupError, codecs.getreader, "__spam__")
def test_getwriter(self):
self.assertRaises(TypeError, codecs.getwriter)
self.assertRaises(LookupError, codecs.getwriter, "__spam__")
def test_lookup_issue1813(self):
# Issue #1813: under Turkish locales, lookup of some codecs failed
# because 'I' is lowercased as "ı" (dotless i)
oldlocale = locale.setlocale(locale.LC_CTYPE)
self.addCleanup(locale.setlocale, locale.LC_CTYPE, oldlocale)
try:
locale.setlocale(locale.LC_CTYPE, 'tr_TR')
except locale.Error:
# Unsupported locale on this system
self.skipTest('test needs Turkish locale')
c = codecs.lookup('ASCII')
self.assertEqual(c.name, 'ascii')
class StreamReaderTest(unittest.TestCase):
def setUp(self):
self.reader = codecs.getreader('utf-8')
self.stream = io.BytesIO(b'\xed\x95\x9c\n\xea\xb8\x80')
def test_readlines(self):
f = self.reader(self.stream)
self.assertEqual(f.readlines(), ['\ud55c\n', '\uae00'])
class EncodedFileTest(unittest.TestCase):
def test_basic(self):
f = io.BytesIO(b'\xed\x95\x9c\n\xea\xb8\x80')
ef = codecs.EncodedFile(f, 'utf-16-le', 'utf-8')
self.assertEqual(ef.read(), b'\\\xd5\n\x00\x00\xae')
f = io.BytesIO()
ef = codecs.EncodedFile(f, 'utf-8', 'latin-1')
ef.write(b'\xc3\xbc')
self.assertEqual(f.getvalue(), b'\xfc')
all_unicode_encodings = [
"ascii",
"big5",
"big5hkscs",
"charmap",
"cp037",
"cp1006",
"cp1026",
"cp1140",
"cp1250",
"cp1251",
"cp1252",
"cp1253",
"cp1254",
"cp1255",
"cp1256",
"cp1257",
"cp1258",
"cp424",
"cp437",
"cp500",
"cp720",
"cp737",
"cp775",
"cp850",
"cp852",
"cp855",
"cp856",
"cp857",
"cp858",
"cp860",
"cp861",
"cp862",
"cp863",
"cp864",
"cp865",
"cp866",
"cp869",
"cp874",
"cp875",
"cp932",
"cp949",
"cp950",
"euc_jis_2004",
"euc_jisx0213",
"euc_jp",
"euc_kr",
"gb18030",
"gb2312",
"gbk",
"hp_roman8",
"hz",
"idna",
"iso2022_jp",
"iso2022_jp_1",
"iso2022_jp_2",
"iso2022_jp_2004",
"iso2022_jp_3",
"iso2022_jp_ext",
"iso2022_kr",
"iso8859_1",
"iso8859_10",
"iso8859_11",
"iso8859_13",
"iso8859_14",
"iso8859_15",
"iso8859_16",
"iso8859_2",
"iso8859_3",
"iso8859_4",
"iso8859_5",
"iso8859_6",
"iso8859_7",
"iso8859_8",
"iso8859_9",
"johab",
"koi8_r",
"koi8_u",
"latin_1",
"mac_cyrillic",
"mac_greek",
"mac_iceland",
"mac_latin2",
"mac_roman",
"mac_turkish",
"palmos",
"ptcp154",
"punycode",
"raw_unicode_escape",
"shift_jis",
"shift_jis_2004",
"shift_jisx0213",
"tis_620",
"unicode_escape",
"unicode_internal",
"utf_16",
"utf_16_be",
"utf_16_le",
"utf_7",
"utf_8",
]
if hasattr(codecs, "mbcs_encode"):
all_unicode_encodings.append("mbcs")
# The following encoding is not tested, because it's not supposed
# to work:
# "undefined"
# The following encodings don't work in stateful mode
broken_unicode_with_streams = [
"punycode",
"unicode_internal"
]
broken_incremental_coders = broken_unicode_with_streams + [
"idna",
]
class BasicUnicodeTest(unittest.TestCase, MixInCheckStateHandling):
def test_basics(self):
s = "abc123" # all codecs should be able to encode these
for encoding in all_unicode_encodings:
name = codecs.lookup(encoding).name
if encoding.endswith("_codec"):
name += "_codec"
elif encoding == "latin_1":
name = "latin_1"
self.assertEqual(encoding.replace("_", "-"), name.replace("_", "-"))
with support.check_warnings():
# unicode-internal has been deprecated
(b, size) = codecs.getencoder(encoding)(s)
self.assertEqual(size, len(s), "%r != %r (encoding=%r)" % (size, len(s), encoding))
(chars, size) = codecs.getdecoder(encoding)(b)
self.assertEqual(chars, s, "%r != %r (encoding=%r)" % (chars, s, encoding))
if encoding not in broken_unicode_with_streams:
# check stream reader/writer
q = Queue(b"")
writer = codecs.getwriter(encoding)(q)
encodedresult = b""
for c in s:
writer.write(c)
chunk = q.read()
self.assertTrue(type(chunk) is bytes, type(chunk))
encodedresult += chunk
q = Queue(b"")
reader = codecs.getreader(encoding)(q)
decodedresult = ""
for c in encodedresult:
q.write(bytes([c]))
decodedresult += reader.read()
self.assertEqual(decodedresult, s, "%r != %r (encoding=%r)" % (decodedresult, s, encoding))
if encoding not in broken_incremental_coders:
# check incremental decoder/encoder (fetched via the Python
# and C API) and iterencode()/iterdecode()
try:
encoder = codecs.getincrementalencoder(encoding)()
cencoder = _testcapi.codec_incrementalencoder(encoding)
except LookupError: # no IncrementalEncoder
pass
else:
# check incremental decoder/encoder
encodedresult = b""
for c in s:
encodedresult += encoder.encode(c)
encodedresult += encoder.encode("", True)
decoder = codecs.getincrementaldecoder(encoding)()
decodedresult = ""
for c in encodedresult:
decodedresult += decoder.decode(bytes([c]))
decodedresult += decoder.decode(b"", True)
self.assertEqual(decodedresult, s, "%r != %r (encoding=%r)" % (decodedresult, s, encoding))
# check C API
encodedresult = b""
for c in s:
encodedresult += cencoder.encode(c)
encodedresult += cencoder.encode("", True)
cdecoder = _testcapi.codec_incrementaldecoder(encoding)
decodedresult = ""
for c in encodedresult:
decodedresult += cdecoder.decode(bytes([c]))
decodedresult += cdecoder.decode(b"", True)
self.assertEqual(decodedresult, s, "%r != %r (encoding=%r)" % (decodedresult, s, encoding))
# check iterencode()/iterdecode()
result = "".join(codecs.iterdecode(codecs.iterencode(s, encoding), encoding))
self.assertEqual(result, s, "%r != %r (encoding=%r)" % (result, s, encoding))
# check iterencode()/iterdecode() with empty string
result = "".join(codecs.iterdecode(codecs.iterencode("", encoding), encoding))
self.assertEqual(result, "")
if encoding not in ("idna", "mbcs"):
# check incremental decoder/encoder with errors argument
try:
encoder = codecs.getincrementalencoder(encoding)("ignore")
cencoder = _testcapi.codec_incrementalencoder(encoding, "ignore")
except LookupError: # no IncrementalEncoder
pass
else:
encodedresult = b"".join(encoder.encode(c) for c in s)
decoder = codecs.getincrementaldecoder(encoding)("ignore")
decodedresult = "".join(decoder.decode(bytes([c])) for c in encodedresult)
self.assertEqual(decodedresult, s, "%r != %r (encoding=%r)" % (decodedresult, s, encoding))
encodedresult = b"".join(cencoder.encode(c) for c in s)
cdecoder = _testcapi.codec_incrementaldecoder(encoding, "ignore")
decodedresult = "".join(cdecoder.decode(bytes([c])) for c in encodedresult)
self.assertEqual(decodedresult, s, "%r != %r (encoding=%r)" % (decodedresult, s, encoding))
def test_seek(self):
# all codecs should be able to encode these
s = "%s\n%s\n" % (100*"abc123", 100*"def456")
for encoding in all_unicode_encodings:
if encoding == "idna": # FIXME: See SF bug #1163178
continue
if encoding in broken_unicode_with_streams:
continue
reader = codecs.getreader(encoding)(io.BytesIO(s.encode(encoding)))
for t in range(5):
# Test that calling seek resets the internal codec state and buffers
reader.seek(0, 0)
data = reader.read()
self.assertEqual(s, data)
def test_bad_decode_args(self):
for encoding in all_unicode_encodings:
decoder = codecs.getdecoder(encoding)
self.assertRaises(TypeError, decoder)
if encoding not in ("idna", "punycode"):
self.assertRaises(TypeError, decoder, 42)
def test_bad_encode_args(self):
for encoding in all_unicode_encodings:
encoder = codecs.getencoder(encoding)
with support.check_warnings():
# unicode-internal has been deprecated
self.assertRaises(TypeError, encoder)
def test_encoding_map_type_initialized(self):
from encodings import cp1140
# This used to crash, we are only verifying there's no crash.
table_type = type(cp1140.encoding_table)
self.assertEqual(table_type, table_type)
def test_decoder_state(self):
# Check that getstate() and setstate() handle the state properly
u = "abc123"
for encoding in all_unicode_encodings:
if encoding not in broken_incremental_coders:
self.check_state_handling_decode(encoding, u, u.encode(encoding))
self.check_state_handling_encode(encoding, u, u.encode(encoding))
class CharmapTest(unittest.TestCase):
def test_decode_with_string_map(self):
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "strict", "abc"),
("abc", 3)
)
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "strict", "\U0010FFFFbc"),
("\U0010FFFFbc", 3)
)
self.assertRaises(UnicodeDecodeError,
codecs.charmap_decode, b"\x00\x01\x02", "strict", "ab"
)
self.assertRaises(UnicodeDecodeError,
codecs.charmap_decode, b"\x00\x01\x02", "strict", "ab\ufffe"
)
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "replace", "ab"),
("ab\ufffd", 3)
)
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "replace", "ab\ufffe"),
("ab\ufffd", 3)
)
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "ignore", "ab"),
("ab", 3)
)
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "ignore", "ab\ufffe"),
("ab", 3)
)
allbytes = bytes(range(256))
self.assertEqual(
codecs.charmap_decode(allbytes, "ignore", ""),
("", len(allbytes))
)
def test_decode_with_int2str_map(self):
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "strict",
{0: 'a', 1: 'b', 2: 'c'}),
("abc", 3)
)
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "strict",
{0: 'Aa', 1: 'Bb', 2: 'Cc'}),
("AaBbCc", 3)
)
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "strict",
{0: '\U0010FFFF', 1: 'b', 2: 'c'}),
("\U0010FFFFbc", 3)
)
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "strict",
{0: 'a', 1: 'b', 2: ''}),
("ab", 3)
)
self.assertRaises(UnicodeDecodeError,
codecs.charmap_decode, b"\x00\x01\x02", "strict",
{0: 'a', 1: 'b'}
)
self.assertRaises(UnicodeDecodeError,
codecs.charmap_decode, b"\x00\x01\x02", "strict",
{0: 'a', 1: 'b', 2: None}
)
# Issue #14850
self.assertRaises(UnicodeDecodeError,
codecs.charmap_decode, b"\x00\x01\x02", "strict",
{0: 'a', 1: 'b', 2: '\ufffe'}
)
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "replace",
{0: 'a', 1: 'b'}),
("ab\ufffd", 3)
)
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "replace",
{0: 'a', 1: 'b', 2: None}),
("ab\ufffd", 3)
)
# Issue #14850
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "replace",
{0: 'a', 1: 'b', 2: '\ufffe'}),
("ab\ufffd", 3)
)
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "ignore",
{0: 'a', 1: 'b'}),
("ab", 3)
)
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "ignore",
{0: 'a', 1: 'b', 2: None}),
("ab", 3)
)
# Issue #14850
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "ignore",
{0: 'a', 1: 'b', 2: '\ufffe'}),
("ab", 3)
)
allbytes = bytes(range(256))
self.assertEqual(
codecs.charmap_decode(allbytes, "ignore", {}),
("", len(allbytes))
)
def test_decode_with_int2int_map(self):
a = ord('a')
b = ord('b')
c = ord('c')
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "strict",
{0: a, 1: b, 2: c}),
("abc", 3)
)
# Issue #15379
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "strict",
{0: 0x10FFFF, 1: b, 2: c}),
("\U0010FFFFbc", 3)
)
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "strict",
{0: sys.maxunicode, 1: b, 2: c}),
(chr(sys.maxunicode) + "bc", 3)
)
self.assertRaises(TypeError,
codecs.charmap_decode, b"\x00\x01\x02", "strict",
{0: sys.maxunicode + 1, 1: b, 2: c}
)
self.assertRaises(UnicodeDecodeError,
codecs.charmap_decode, b"\x00\x01\x02", "strict",
{0: a, 1: b},
)
self.assertRaises(UnicodeDecodeError,
codecs.charmap_decode, b"\x00\x01\x02", "strict",
{0: a, 1: b, 2: 0xFFFE},
)
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "replace",
{0: a, 1: b}),
("ab\ufffd", 3)
)
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "replace",
{0: a, 1: b, 2: 0xFFFE}),
("ab\ufffd", 3)
)
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "ignore",
{0: a, 1: b}),
("ab", 3)
)
self.assertEqual(
codecs.charmap_decode(b"\x00\x01\x02", "ignore",
{0: a, 1: b, 2: 0xFFFE}),
("ab", 3)
)
class WithStmtTest(unittest.TestCase):
def test_encodedfile(self):
f = io.BytesIO(b"\xc3\xbc")
with codecs.EncodedFile(f, "latin-1", "utf-8") as ef:
self.assertEqual(ef.read(), b"\xfc")
def test_streamreaderwriter(self):
f = io.BytesIO(b"\xc3\xbc")
info = codecs.lookup("utf-8")
with codecs.StreamReaderWriter(f, info.streamreader,
info.streamwriter, 'strict') as srw:
self.assertEqual(srw.read(), "\xfc")
class TypesTest(unittest.TestCase):
def test_decode_unicode(self):
# Most decoders don't accept unicode input
decoders = [
codecs.utf_7_decode,
codecs.utf_8_decode,
codecs.utf_16_le_decode,
codecs.utf_16_be_decode,
codecs.utf_16_ex_decode,
codecs.utf_32_decode,
codecs.utf_32_le_decode,
codecs.utf_32_be_decode,
codecs.utf_32_ex_decode,
codecs.latin_1_decode,
codecs.ascii_decode,
codecs.charmap_decode,
]
if hasattr(codecs, "mbcs_decode"):
decoders.append(codecs.mbcs_decode)
for decoder in decoders:
self.assertRaises(TypeError, decoder, "xxx")
def test_unicode_escape(self):
# Escape-decoding an unicode string is supported ang gives the same
# result as decoding the equivalent ASCII bytes string.
self.assertEqual(codecs.unicode_escape_decode(r"\u1234"), ("\u1234", 6))
self.assertEqual(codecs.unicode_escape_decode(br"\u1234"), ("\u1234", 6))
self.assertEqual(codecs.raw_unicode_escape_decode(r"\u1234"), ("\u1234", 6))
self.assertEqual(codecs.raw_unicode_escape_decode(br"\u1234"), ("\u1234", 6))
self.assertRaises(UnicodeDecodeError, codecs.unicode_escape_decode, br"\U00110000")
self.assertEqual(codecs.unicode_escape_decode(r"\U00110000", "replace"), ("\ufffd", 10))
self.assertRaises(UnicodeDecodeError, codecs.raw_unicode_escape_decode, br"\U00110000")
self.assertEqual(codecs.raw_unicode_escape_decode(r"\U00110000", "replace"), ("\ufffd", 10))
class UnicodeEscapeTest(unittest.TestCase):
def test_empty(self):
self.assertEqual(codecs.unicode_escape_encode(""), (b"", 0))
self.assertEqual(codecs.unicode_escape_decode(b""), ("", 0))
def test_raw_encode(self):
encode = codecs.unicode_escape_encode
for b in range(32, 127):
if b != b'\\'[0]:
self.assertEqual(encode(chr(b)), (bytes([b]), 1))
def test_raw_decode(self):
decode = codecs.unicode_escape_decode
for b in range(256):
if b != b'\\'[0]:
self.assertEqual(decode(bytes([b]) + b'0'), (chr(b) + '0', 2))
def test_escape_encode(self):
encode = codecs.unicode_escape_encode
check = coding_checker(self, encode)
check('\t', br'\t')
check('\n', br'\n')
check('\r', br'\r')
check('\\', br'\\')
for b in range(32):
if chr(b) not in '\t\n\r':
check(chr(b), ('\\x%02x' % b).encode())
for b in range(127, 256):
check(chr(b), ('\\x%02x' % b).encode())
check('\u20ac', br'\u20ac')
check('\U0001d120', br'\U0001d120')
def test_escape_decode(self):
decode = codecs.unicode_escape_decode
check = coding_checker(self, decode)
check(b"[\\\n]", "[]")
check(br'[\"]', '["]')
check(br"[\']", "[']")
check(br"[\\]", r"[\]")
check(br"[\a]", "[\x07]")
check(br"[\b]", "[\x08]")
check(br"[\t]", "[\x09]")
check(br"[\n]", "[\x0a]")
check(br"[\v]", "[\x0b]")
check(br"[\f]", "[\x0c]")
check(br"[\r]", "[\x0d]")
check(br"[\7]", "[\x07]")
check(br"[\8]", r"[\8]")
check(br"[\78]", "[\x078]")
check(br"[\41]", "[!]")
check(br"[\418]", "[!8]")
check(br"[\101]", "[A]")
check(br"[\1010]", "[A0]")
check(br"[\x41]", "[A]")
check(br"[\x410]", "[A0]")
check(br"\u20ac", "\u20ac")
check(br"\U0001d120", "\U0001d120")
for b in range(256):
if b not in b'\n"\'\\abtnvfr01234567xuUN':
check(b'\\' + bytes([b]), '\\' + chr(b))
def test_decode_errors(self):
decode = codecs.unicode_escape_decode
for c, d in (b'x', 2), (b'u', 4), (b'U', 4):
for i in range(d):
self.assertRaises(UnicodeDecodeError, decode,
b"\\" + c + b"0"*i)
self.assertRaises(UnicodeDecodeError, decode,
b"[\\" + c + b"0"*i + b"]")
data = b"[\\" + c + b"0"*i + b"]\\" + c + b"0"*i
self.assertEqual(decode(data, "ignore"), ("[]", len(data)))
self.assertEqual(decode(data, "replace"),
("[\ufffd]\ufffd", len(data)))
self.assertRaises(UnicodeDecodeError, decode, br"\U00110000")
self.assertEqual(decode(br"\U00110000", "ignore"), ("", 10))
self.assertEqual(decode(br"\U00110000", "replace"), ("\ufffd", 10))
class RawUnicodeEscapeTest(unittest.TestCase):
def test_empty(self):
self.assertEqual(codecs.raw_unicode_escape_encode(""), (b"", 0))
self.assertEqual(codecs.raw_unicode_escape_decode(b""), ("", 0))
def test_raw_encode(self):
encode = codecs.raw_unicode_escape_encode
for b in range(256):
self.assertEqual(encode(chr(b)), (bytes([b]), 1))
def test_raw_decode(self):
decode = codecs.raw_unicode_escape_decode
for b in range(256):
self.assertEqual(decode(bytes([b]) + b'0'), (chr(b) + '0', 2))
def test_escape_encode(self):
encode = codecs.raw_unicode_escape_encode
check = coding_checker(self, encode)
for b in range(256):
if b not in b'uU':
check('\\' + chr(b), b'\\' + bytes([b]))
check('\u20ac', br'\u20ac')
check('\U0001d120', br'\U0001d120')
def test_escape_decode(self):
decode = codecs.raw_unicode_escape_decode
check = coding_checker(self, decode)
for b in range(256):
if b not in b'uU':
check(b'\\' + bytes([b]), '\\' + chr(b))
check(br"\u20ac", "\u20ac")
check(br"\U0001d120", "\U0001d120")
def test_decode_errors(self):
decode = codecs.raw_unicode_escape_decode
for c, d in (b'u', 4), (b'U', 4):
for i in range(d):
self.assertRaises(UnicodeDecodeError, decode,
b"\\" + c + b"0"*i)
self.assertRaises(UnicodeDecodeError, decode,
b"[\\" + c + b"0"*i + b"]")
data = b"[\\" + c + b"0"*i + b"]\\" + c + b"0"*i
self.assertEqual(decode(data, "ignore"), ("[]", len(data)))
self.assertEqual(decode(data, "replace"),
("[\ufffd]\ufffd", len(data)))
self.assertRaises(UnicodeDecodeError, decode, br"\U00110000")
self.assertEqual(decode(br"\U00110000", "ignore"), ("", 10))
self.assertEqual(decode(br"\U00110000", "replace"), ("\ufffd", 10))
class SurrogateEscapeTest(unittest.TestCase):
def test_utf8(self):
# Bad byte
self.assertEqual(b"foo\x80bar".decode("utf-8", "surrogateescape"),
"foo\udc80bar")
self.assertEqual("foo\udc80bar".encode("utf-8", "surrogateescape"),
b"foo\x80bar")
# bad-utf-8 encoded surrogate
self.assertEqual(b"\xed\xb0\x80".decode("utf-8", "surrogateescape"),
"\udced\udcb0\udc80")
self.assertEqual("\udced\udcb0\udc80".encode("utf-8", "surrogateescape"),
b"\xed\xb0\x80")
def test_ascii(self):
# bad byte
self.assertEqual(b"foo\x80bar".decode("ascii", "surrogateescape"),
"foo\udc80bar")
self.assertEqual("foo\udc80bar".encode("ascii", "surrogateescape"),
b"foo\x80bar")
def test_charmap(self):
# bad byte: \xa5 is unmapped in iso-8859-3
self.assertEqual(b"foo\xa5bar".decode("iso-8859-3", "surrogateescape"),
"foo\udca5bar")
self.assertEqual("foo\udca5bar".encode("iso-8859-3", "surrogateescape"),
b"foo\xa5bar")
def test_latin1(self):
# Issue6373
self.assertEqual("\udce4\udceb\udcef\udcf6\udcfc".encode("latin-1", "surrogateescape"),
b"\xe4\xeb\xef\xf6\xfc")
class BomTest(unittest.TestCase):
def test_seek0(self):
data = "1234567890"
tests = ("utf-16",
"utf-16-le",
"utf-16-be",
"utf-32",
"utf-32-le",
"utf-32-be")
self.addCleanup(support.unlink, support.TESTFN)
for encoding in tests:
# Check if the BOM is written only once
with codecs.open(support.TESTFN, 'w+', encoding=encoding) as f:
f.write(data)
f.write(data)
f.seek(0)
self.assertEqual(f.read(), data * 2)
f.seek(0)
self.assertEqual(f.read(), data * 2)
# Check that the BOM is written after a seek(0)
with codecs.open(support.TESTFN, 'w+', encoding=encoding) as f:
f.write(data[0])
self.assertNotEqual(f.tell(), 0)
f.seek(0)
f.write(data)
f.seek(0)
self.assertEqual(f.read(), data)
# (StreamWriter) Check that the BOM is written after a seek(0)
with codecs.open(support.TESTFN, 'w+', encoding=encoding) as f:
f.writer.write(data[0])
self.assertNotEqual(f.writer.tell(), 0)
f.writer.seek(0)
f.writer.write(data)
f.seek(0)
self.assertEqual(f.read(), data)
# Check that the BOM is not written after a seek() at a position
# different than the start
with codecs.open(support.TESTFN, 'w+', encoding=encoding) as f:
f.write(data)
f.seek(f.tell())
f.write(data)
f.seek(0)
self.assertEqual(f.read(), data * 2)
# (StreamWriter) Check that the BOM is not written after a seek()
# at a position different than the start
with codecs.open(support.TESTFN, 'w+', encoding=encoding) as f:
f.writer.write(data)
f.writer.seek(f.writer.tell())
f.writer.write(data)
f.seek(0)
self.assertEqual(f.read(), data * 2)
bytes_transform_encodings = [
"base64_codec",
"uu_codec",
"quopri_codec",
"hex_codec",
]
try:
import zlib
except ImportError:
pass
else:
bytes_transform_encodings.append("zlib_codec")
try:
import bz2
except ImportError:
pass
else:
bytes_transform_encodings.append("bz2_codec")
class TransformCodecTest(unittest.TestCase):
def test_basics(self):
binput = bytes(range(256))
for encoding in bytes_transform_encodings:
# generic codecs interface
(o, size) = codecs.getencoder(encoding)(binput)
self.assertEqual(size, len(binput))
(i, size) = codecs.getdecoder(encoding)(o)
self.assertEqual(size, len(o))
self.assertEqual(i, binput)
def test_read(self):
for encoding in bytes_transform_encodings:
sin = codecs.encode(b"\x80", encoding)
reader = codecs.getreader(encoding)(io.BytesIO(sin))
sout = reader.read()
self.assertEqual(sout, b"\x80")
def test_readline(self):
for encoding in bytes_transform_encodings:
if encoding in ['uu_codec', 'zlib_codec']:
continue
sin = codecs.encode(b"\x80", encoding)
reader = codecs.getreader(encoding)(io.BytesIO(sin))
sout = reader.readline()
self.assertEqual(sout, b"\x80")
@unittest.skipUnless(sys.platform == 'win32',
'code pages are specific to Windows')
class CodePageTest(unittest.TestCase):
# CP_UTF8 is already tested by CP65001Test
CP_UTF8 = 65001
def test_invalid_code_page(self):
self.assertRaises(ValueError, codecs.code_page_encode, -1, 'a')
self.assertRaises(ValueError, codecs.code_page_decode, -1, b'a')
self.assertRaises(OSError, codecs.code_page_encode, 123, 'a')
self.assertRaises(OSError, codecs.code_page_decode, 123, b'a')
def test_code_page_name(self):
self.assertRaisesRegex(UnicodeEncodeError, 'cp932',
codecs.code_page_encode, 932, '\xff')
self.assertRaisesRegex(UnicodeDecodeError, 'cp932',
codecs.code_page_decode, 932, b'\x81\x00')
self.assertRaisesRegex(UnicodeDecodeError, 'CP_UTF8',
codecs.code_page_decode, self.CP_UTF8, b'\xff')
def check_decode(self, cp, tests):
for raw, errors, expected in tests:
if expected is not None:
try:
decoded = codecs.code_page_decode(cp, raw, errors)
except UnicodeDecodeError as err:
self.fail('Unable to decode %a from "cp%s" with '
'errors=%r: %s' % (raw, cp, errors, err))
self.assertEqual(decoded[0], expected,
'%a.decode("cp%s", %r)=%a != %a'
% (raw, cp, errors, decoded[0], expected))
# assert 0 <= decoded[1] <= len(raw)
self.assertGreaterEqual(decoded[1], 0)
self.assertLessEqual(decoded[1], len(raw))
else:
self.assertRaises(UnicodeDecodeError,
codecs.code_page_decode, cp, raw, errors)
def check_encode(self, cp, tests):
for text, errors, expected in tests:
if expected is not None:
try:
encoded = codecs.code_page_encode(cp, text, errors)
except UnicodeEncodeError as err:
self.fail('Unable to encode %a to "cp%s" with '
'errors=%r: %s' % (text, cp, errors, err))
self.assertEqual(encoded[0], expected,
'%a.encode("cp%s", %r)=%a != %a'
% (text, cp, errors, encoded[0], expected))
self.assertEqual(encoded[1], len(text))
else:
self.assertRaises(UnicodeEncodeError,
codecs.code_page_encode, cp, text, errors)
def test_cp932(self):
self.check_encode(932, (
('abc', 'strict', b'abc'),
('\uff44\u9a3e', 'strict', b'\x82\x84\xe9\x80'),
# test error handlers
('\xff', 'strict', None),
('[\xff]', 'ignore', b'[]'),
('[\xff]', 'replace', b'[y]'),
('[\u20ac]', 'replace', b'[?]'),
('[\xff]', 'backslashreplace', b'[\\xff]'),
('[\xff]', 'xmlcharrefreplace', b'[&#255;]'),
))
self.check_decode(932, (
(b'abc', 'strict', 'abc'),
(b'\x82\x84\xe9\x80', 'strict', '\uff44\u9a3e'),
# invalid bytes
(b'[\xff]', 'strict', None),
(b'[\xff]', 'ignore', '[]'),
(b'[\xff]', 'replace', '[\ufffd]'),
(b'[\xff]', 'surrogateescape', '[\udcff]'),
(b'\x81\x00abc', 'strict', None),
(b'\x81\x00abc', 'ignore', '\x00abc'),
(b'\x81\x00abc', 'replace', '\ufffd\x00abc'),
))
def test_cp1252(self):
self.check_encode(1252, (
('abc', 'strict', b'abc'),
('\xe9\u20ac', 'strict', b'\xe9\x80'),
('\xff', 'strict', b'\xff'),
('\u0141', 'strict', None),
('\u0141', 'ignore', b''),
('\u0141', 'replace', b'L'),
))
self.check_decode(1252, (
(b'abc', 'strict', 'abc'),
(b'\xe9\x80', 'strict', '\xe9\u20ac'),
(b'\xff', 'strict', '\xff'),
))
def test_cp_utf7(self):
cp = 65000
self.check_encode(cp, (
('abc', 'strict', b'abc'),
('\xe9\u20ac', 'strict', b'+AOkgrA-'),
('\U0010ffff', 'strict', b'+2//f/w-'),
('\udc80', 'strict', b'+3IA-'),
('\ufffd', 'strict', b'+//0-'),
))
self.check_decode(cp, (
(b'abc', 'strict', 'abc'),
(b'+AOkgrA-', 'strict', '\xe9\u20ac'),
(b'+2//f/w-', 'strict', '\U0010ffff'),
(b'+3IA-', 'strict', '\udc80'),
(b'+//0-', 'strict', '\ufffd'),
# invalid bytes
(b'[+/]', 'strict', '[]'),
(b'[\xff]', 'strict', '[\xff]'),
))
def test_multibyte_encoding(self):
self.check_decode(932, (
(b'\x84\xe9\x80', 'ignore', '\u9a3e'),
(b'\x84\xe9\x80', 'replace', '\ufffd\u9a3e'),
))
self.check_decode(self.CP_UTF8, (
(b'\xff\xf4\x8f\xbf\xbf', 'ignore', '\U0010ffff'),
(b'\xff\xf4\x8f\xbf\xbf', 'replace', '\ufffd\U0010ffff'),
))
if VISTA_OR_LATER:
self.check_encode(self.CP_UTF8, (
('[\U0010ffff\uDC80]', 'ignore', b'[\xf4\x8f\xbf\xbf]'),
('[\U0010ffff\uDC80]', 'replace', b'[\xf4\x8f\xbf\xbf?]'),
))
def test_incremental(self):
decoded = codecs.code_page_decode(932, b'\x82', 'strict', False)
self.assertEqual(decoded, ('', 0))
decoded = codecs.code_page_decode(932,
b'\xe9\x80\xe9', 'strict',
False)
self.assertEqual(decoded, ('\u9a3e', 2))
decoded = codecs.code_page_decode(932,
b'\xe9\x80\xe9\x80', 'strict',
False)
self.assertEqual(decoded, ('\u9a3e\u9a3e', 4))
decoded = codecs.code_page_decode(932,
b'abc', 'strict',
False)
self.assertEqual(decoded, ('abc', 3))
if __name__ == "__main__":
unittest.main()
Reference in New Issue View Git Blame Copy Permalink