mirror of https://github.com/python/cpython
3542 lines
134 KiB
Python
3542 lines
134 KiB
Python
import codecs
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import contextlib
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import io
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import locale
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import sys
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import unittest
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import encodings
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from unittest import mock
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from test import support
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from test.support import os_helper
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from test.support import warnings_helper
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try:
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import _testcapi
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except ImportError:
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_testcapi = None
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try:
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import _testinternalcapi
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except ImportError:
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_testinternalcapi = None
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try:
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import ctypes
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except ImportError:
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ctypes = None
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SIZEOF_WCHAR_T = -1
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else:
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SIZEOF_WCHAR_T = ctypes.sizeof(ctypes.c_wchar)
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def coding_checker(self, coder):
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def check(input, expect):
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self.assertEqual(coder(input), (expect, len(input)))
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return check
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# On small versions of Windows like Windows IoT or Windows Nano Server not all codepages are present
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def is_code_page_present(cp):
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from ctypes import POINTER, WINFUNCTYPE, WinDLL
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from ctypes.wintypes import BOOL, UINT, BYTE, WCHAR, UINT, DWORD
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MAX_LEADBYTES = 12 # 5 ranges, 2 bytes ea., 0 term.
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MAX_DEFAULTCHAR = 2 # single or double byte
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MAX_PATH = 260
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class CPINFOEXW(ctypes.Structure):
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_fields_ = [("MaxCharSize", UINT),
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("DefaultChar", BYTE*MAX_DEFAULTCHAR),
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("LeadByte", BYTE*MAX_LEADBYTES),
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("UnicodeDefaultChar", WCHAR),
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("CodePage", UINT),
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("CodePageName", WCHAR*MAX_PATH)]
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prototype = WINFUNCTYPE(BOOL, UINT, DWORD, POINTER(CPINFOEXW))
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GetCPInfoEx = prototype(("GetCPInfoExW", WinDLL("kernel32")))
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info = CPINFOEXW()
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return GetCPInfoEx(cp, 0, info)
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class Queue(object):
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"""
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queue: write bytes at one end, read bytes from the other end
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"""
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def __init__(self, buffer):
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self._buffer = buffer
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def write(self, chars):
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self._buffer += chars
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def read(self, size=-1):
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if size<0:
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s = self._buffer
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self._buffer = self._buffer[:0] # make empty
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return s
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else:
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s = self._buffer[:size]
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self._buffer = self._buffer[size:]
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return s
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class MixInCheckStateHandling:
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def check_state_handling_decode(self, encoding, u, s):
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for i in range(len(s)+1):
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d = codecs.getincrementaldecoder(encoding)()
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part1 = d.decode(s[:i])
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state = d.getstate()
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self.assertIsInstance(state[1], int)
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# Check that the condition stated in the documentation for
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# IncrementalDecoder.getstate() holds
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if not state[1]:
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# reset decoder to the default state without anything buffered
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d.setstate((state[0][:0], 0))
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# Feeding the previous input may not produce any output
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self.assertTrue(not d.decode(state[0]))
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# The decoder must return to the same state
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self.assertEqual(state, d.getstate())
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# Create a new decoder and set it to the state
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# we extracted from the old one
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d = codecs.getincrementaldecoder(encoding)()
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d.setstate(state)
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part2 = d.decode(s[i:], True)
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self.assertEqual(u, part1+part2)
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def check_state_handling_encode(self, encoding, u, s):
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for i in range(len(u)+1):
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d = codecs.getincrementalencoder(encoding)()
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part1 = d.encode(u[:i])
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state = d.getstate()
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d = codecs.getincrementalencoder(encoding)()
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d.setstate(state)
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part2 = d.encode(u[i:], True)
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self.assertEqual(s, part1+part2)
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class ReadTest(MixInCheckStateHandling):
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def check_partial(self, input, partialresults):
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# get a StreamReader for the encoding and feed the bytestring version
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# of input to the reader byte by byte. Read everything available from
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# the StreamReader and check that the results equal the appropriate
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# entries from partialresults.
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q = Queue(b"")
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r = codecs.getreader(self.encoding)(q)
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result = ""
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for (c, partialresult) in zip(input.encode(self.encoding), partialresults, strict=True):
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q.write(bytes([c]))
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result += r.read()
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self.assertEqual(result, partialresult)
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# check that there's nothing left in the buffers
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self.assertEqual(r.read(), "")
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self.assertEqual(r.bytebuffer, b"")
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# do the check again, this time using an incremental decoder
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d = codecs.getincrementaldecoder(self.encoding)()
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result = ""
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for (c, partialresult) in zip(input.encode(self.encoding), partialresults, strict=True):
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result += d.decode(bytes([c]))
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self.assertEqual(result, partialresult)
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# check that there's nothing left in the buffers
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self.assertEqual(d.decode(b"", True), "")
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self.assertEqual(d.buffer, b"")
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# Check whether the reset method works properly
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d.reset()
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result = ""
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for (c, partialresult) in zip(input.encode(self.encoding), partialresults, strict=True):
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result += d.decode(bytes([c]))
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self.assertEqual(result, partialresult)
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# check that there's nothing left in the buffers
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self.assertEqual(d.decode(b"", True), "")
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self.assertEqual(d.buffer, b"")
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# check iterdecode()
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encoded = input.encode(self.encoding)
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self.assertEqual(
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input,
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"".join(codecs.iterdecode([bytes([c]) for c in encoded], self.encoding))
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)
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def test_readline(self):
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def getreader(input):
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stream = io.BytesIO(input.encode(self.encoding))
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return codecs.getreader(self.encoding)(stream)
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def readalllines(input, keepends=True, size=None):
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reader = getreader(input)
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lines = []
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while True:
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line = reader.readline(size=size, keepends=keepends)
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if not line:
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break
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lines.append(line)
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return "|".join(lines)
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s = "foo\nbar\r\nbaz\rspam\u2028eggs"
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sexpected = "foo\n|bar\r\n|baz\r|spam\u2028|eggs"
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sexpectednoends = "foo|bar|baz|spam|eggs"
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self.assertEqual(readalllines(s, True), sexpected)
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self.assertEqual(readalllines(s, False), sexpectednoends)
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self.assertEqual(readalllines(s, True, 10), sexpected)
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self.assertEqual(readalllines(s, False, 10), sexpectednoends)
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lineends = ("\n", "\r\n", "\r", "\u2028")
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# Test long lines (multiple calls to read() in readline())
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vw = []
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vwo = []
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for (i, lineend) in enumerate(lineends):
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vw.append((i*200+200)*"\u3042" + lineend)
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vwo.append((i*200+200)*"\u3042")
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self.assertEqual(readalllines("".join(vw), True), "|".join(vw))
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self.assertEqual(readalllines("".join(vw), False), "|".join(vwo))
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# Test lines where the first read might end with \r, so the
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# reader has to look ahead whether this is a lone \r or a \r\n
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for size in range(80):
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for lineend in lineends:
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s = 10*(size*"a" + lineend + "xxx\n")
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reader = getreader(s)
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for i in range(10):
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self.assertEqual(
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reader.readline(keepends=True),
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size*"a" + lineend,
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)
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self.assertEqual(
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reader.readline(keepends=True),
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"xxx\n",
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)
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reader = getreader(s)
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for i in range(10):
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self.assertEqual(
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reader.readline(keepends=False),
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size*"a",
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)
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self.assertEqual(
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reader.readline(keepends=False),
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"xxx",
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)
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def test_mixed_readline_and_read(self):
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lines = ["Humpty Dumpty sat on a wall,\n",
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"Humpty Dumpty had a great fall.\r\n",
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"All the king's horses and all the king's men\r",
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"Couldn't put Humpty together again."]
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data = ''.join(lines)
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def getreader():
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stream = io.BytesIO(data.encode(self.encoding))
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return codecs.getreader(self.encoding)(stream)
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# Issue #8260: Test readline() followed by read()
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f = getreader()
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self.assertEqual(f.readline(), lines[0])
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self.assertEqual(f.read(), ''.join(lines[1:]))
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self.assertEqual(f.read(), '')
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# Issue #32110: Test readline() followed by read(n)
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f = getreader()
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self.assertEqual(f.readline(), lines[0])
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self.assertEqual(f.read(1), lines[1][0])
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self.assertEqual(f.read(0), '')
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self.assertEqual(f.read(100), data[len(lines[0]) + 1:][:100])
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# Issue #16636: Test readline() followed by readlines()
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f = getreader()
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self.assertEqual(f.readline(), lines[0])
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self.assertEqual(f.readlines(), lines[1:])
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self.assertEqual(f.read(), '')
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# Test read(n) followed by read()
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f = getreader()
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self.assertEqual(f.read(size=40, chars=5), data[:5])
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self.assertEqual(f.read(), data[5:])
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self.assertEqual(f.read(), '')
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# Issue #32110: Test read(n) followed by read(n)
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f = getreader()
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self.assertEqual(f.read(size=40, chars=5), data[:5])
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self.assertEqual(f.read(1), data[5])
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self.assertEqual(f.read(0), '')
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self.assertEqual(f.read(100), data[6:106])
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# Issue #12446: Test read(n) followed by readlines()
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f = getreader()
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self.assertEqual(f.read(size=40, chars=5), data[:5])
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self.assertEqual(f.readlines(), [lines[0][5:]] + lines[1:])
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self.assertEqual(f.read(), '')
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def test_bug1175396(self):
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s = [
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'<%!--===================================================\r\n',
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' BLOG index page: show recent articles,\r\n',
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' today\'s articles, or articles of a specific date.\r\n',
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'========================================================--%>\r\n',
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'<%@inputencoding="ISO-8859-1"%>\r\n',
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'<%@pagetemplate=TEMPLATE.y%>\r\n',
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'<%@import=import frog.util, frog%>\r\n',
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'<%@import=import frog.objects%>\r\n',
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'<%@import=from frog.storageerrors import StorageError%>\r\n',
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'<%\r\n',
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'\r\n',
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'import logging\r\n',
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'log=logging.getLogger("Snakelets.logger")\r\n',
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'\r\n',
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'\r\n',
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'user=self.SessionCtx.user\r\n',
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'storageEngine=self.SessionCtx.storageEngine\r\n',
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'\r\n',
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'\r\n',
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'def readArticlesFromDate(date, count=None):\r\n',
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' entryids=storageEngine.listBlogEntries(date)\r\n',
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' entryids.reverse() # descending\r\n',
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' if count:\r\n',
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' entryids=entryids[:count]\r\n',
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' try:\r\n',
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' return [ frog.objects.BlogEntry.load(storageEngine, date, Id) for Id in entryids ]\r\n',
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' except StorageError,x:\r\n',
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' log.error("Error loading articles: "+str(x))\r\n',
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' self.abort("cannot load articles")\r\n',
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'\r\n',
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'showdate=None\r\n',
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'\r\n',
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'arg=self.Request.getArg()\r\n',
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'if arg=="today":\r\n',
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' #-------------------- TODAY\'S ARTICLES\r\n',
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' self.write("<h2>Today\'s articles</h2>")\r\n',
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' showdate = frog.util.isodatestr() \r\n',
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' entries = readArticlesFromDate(showdate)\r\n',
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'elif arg=="active":\r\n',
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' #-------------------- ACTIVE ARTICLES redirect\r\n',
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' self.Yredirect("active.y")\r\n',
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'elif arg=="login":\r\n',
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' #-------------------- LOGIN PAGE redirect\r\n',
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' self.Yredirect("login.y")\r\n',
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'elif arg=="date":\r\n',
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' #-------------------- ARTICLES OF A SPECIFIC DATE\r\n',
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' showdate = self.Request.getParameter("date")\r\n',
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' self.write("<h2>Articles written on %s</h2>"% frog.util.mediumdatestr(showdate))\r\n',
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' entries = readArticlesFromDate(showdate)\r\n',
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'else:\r\n',
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' #-------------------- RECENT ARTICLES\r\n',
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' self.write("<h2>Recent articles</h2>")\r\n',
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' dates=storageEngine.listBlogEntryDates()\r\n',
|
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' if dates:\r\n',
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' entries=[]\r\n',
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' SHOWAMOUNT=10\r\n',
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' for showdate in dates:\r\n',
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' entries.extend( readArticlesFromDate(showdate, SHOWAMOUNT-len(entries)) )\r\n',
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' if len(entries)>=SHOWAMOUNT:\r\n',
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' break\r\n',
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' \r\n',
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]
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stream = io.BytesIO("".join(s).encode(self.encoding))
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reader = codecs.getreader(self.encoding)(stream)
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for (i, line) in enumerate(reader):
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self.assertEqual(line, s[i])
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|
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def test_readlinequeue(self):
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q = Queue(b"")
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writer = codecs.getwriter(self.encoding)(q)
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reader = codecs.getreader(self.encoding)(q)
|
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|
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# No lineends
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writer.write("foo\r")
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self.assertEqual(reader.readline(keepends=False), "foo")
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writer.write("\nbar\r")
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self.assertEqual(reader.readline(keepends=False), "")
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self.assertEqual(reader.readline(keepends=False), "bar")
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writer.write("baz")
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self.assertEqual(reader.readline(keepends=False), "baz")
|
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self.assertEqual(reader.readline(keepends=False), "")
|
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|
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# Lineends
|
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writer.write("foo\r")
|
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self.assertEqual(reader.readline(keepends=True), "foo\r")
|
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writer.write("\nbar\r")
|
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self.assertEqual(reader.readline(keepends=True), "\n")
|
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self.assertEqual(reader.readline(keepends=True), "bar\r")
|
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writer.write("baz")
|
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self.assertEqual(reader.readline(keepends=True), "baz")
|
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self.assertEqual(reader.readline(keepends=True), "")
|
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writer.write("foo\r\n")
|
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self.assertEqual(reader.readline(keepends=True), "foo\r\n")
|
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|
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def test_bug1098990_a(self):
|
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s1 = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy\r\n"
|
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s2 = "offending line: ladfj askldfj klasdj fskla dfzaskdj fasklfj laskd fjasklfzzzzaa%whereisthis!!!\r\n"
|
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s3 = "next line.\r\n"
|
||
|
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s = (s1+s2+s3).encode(self.encoding)
|
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stream = io.BytesIO(s)
|
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reader = codecs.getreader(self.encoding)(stream)
|
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self.assertEqual(reader.readline(), s1)
|
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self.assertEqual(reader.readline(), s2)
|
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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(), "")
|
||
|
||
ill_formed_sequence_replace = "\ufffd"
|
||
|
||
def test_lone_surrogates(self):
|
||
self.assertRaises(UnicodeEncodeError, "\ud800".encode, self.encoding)
|
||
self.assertEqual("[\uDC80]".encode(self.encoding, "backslashreplace"),
|
||
"[\\udc80]".encode(self.encoding))
|
||
self.assertEqual("[\uDC80]".encode(self.encoding, "namereplace"),
|
||
"[\\udc80]".encode(self.encoding))
|
||
self.assertEqual("[\uDC80]".encode(self.encoding, "xmlcharrefreplace"),
|
||
"[�]".encode(self.encoding))
|
||
self.assertEqual("[\uDC80]".encode(self.encoding, "ignore"),
|
||
"[]".encode(self.encoding))
|
||
self.assertEqual("[\uDC80]".encode(self.encoding, "replace"),
|
||
"[?]".encode(self.encoding))
|
||
|
||
# sequential surrogate characters
|
||
self.assertEqual("[\uD800\uDC80]".encode(self.encoding, "ignore"),
|
||
"[]".encode(self.encoding))
|
||
self.assertEqual("[\uD800\uDC80]".encode(self.encoding, "replace"),
|
||
"[??]".encode(self.encoding))
|
||
|
||
bom = "".encode(self.encoding)
|
||
for before, after in [("\U00010fff", "A"), ("[", "]"),
|
||
("A", "\U00010fff")]:
|
||
before_sequence = before.encode(self.encoding)[len(bom):]
|
||
after_sequence = after.encode(self.encoding)[len(bom):]
|
||
test_string = before + "\uDC80" + after
|
||
test_sequence = (bom + before_sequence +
|
||
self.ill_formed_sequence + after_sequence)
|
||
self.assertRaises(UnicodeDecodeError, test_sequence.decode,
|
||
self.encoding)
|
||
self.assertEqual(test_string.encode(self.encoding,
|
||
"surrogatepass"),
|
||
test_sequence)
|
||
self.assertEqual(test_sequence.decode(self.encoding,
|
||
"surrogatepass"),
|
||
test_string)
|
||
self.assertEqual(test_sequence.decode(self.encoding, "ignore"),
|
||
before + after)
|
||
self.assertEqual(test_sequence.decode(self.encoding, "replace"),
|
||
before + self.ill_formed_sequence_replace + after)
|
||
backslashreplace = ''.join('\\x%02x' % b
|
||
for b in self.ill_formed_sequence)
|
||
self.assertEqual(test_sequence.decode(self.encoding, "backslashreplace"),
|
||
before + backslashreplace + after)
|
||
|
||
def test_incremental_surrogatepass(self):
|
||
# Test incremental decoder for surrogatepass handler:
|
||
# see issue #24214
|
||
# High surrogate
|
||
data = '\uD901'.encode(self.encoding, 'surrogatepass')
|
||
for i in range(1, len(data)):
|
||
dec = codecs.getincrementaldecoder(self.encoding)('surrogatepass')
|
||
self.assertEqual(dec.decode(data[:i]), '')
|
||
self.assertEqual(dec.decode(data[i:], True), '\uD901')
|
||
# Low surrogate
|
||
data = '\uDC02'.encode(self.encoding, 'surrogatepass')
|
||
for i in range(1, len(data)):
|
||
dec = codecs.getincrementaldecoder(self.encoding)('surrogatepass')
|
||
self.assertEqual(dec.decode(data[:i]), '')
|
||
self.assertEqual(dec.decode(data[i:]), '\uDC02')
|
||
|
||
|
||
class UTF32Test(ReadTest, unittest.TestCase):
|
||
encoding = "utf-32"
|
||
if sys.byteorder == 'little':
|
||
ill_formed_sequence = b"\x80\xdc\x00\x00"
|
||
else:
|
||
ill_formed_sequence = b"\x00\x00\xdc\x80"
|
||
|
||
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"
|
||
ill_formed_sequence = b"\x80\xdc\x00\x00"
|
||
|
||
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"
|
||
ill_formed_sequence = b"\x00\x00\xdc\x80"
|
||
|
||
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"
|
||
if sys.byteorder == 'little':
|
||
ill_formed_sequence = b"\x80\xdc"
|
||
else:
|
||
ill_formed_sequence = b"\xdc\x80"
|
||
|
||
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(os_helper.unlink, os_helper.TESTFN)
|
||
with open(os_helper.TESTFN, 'wb') as fp:
|
||
fp.write(s)
|
||
with codecs.open(os_helper.TESTFN, 'r',
|
||
encoding=self.encoding) as reader:
|
||
self.assertEqual(reader.read(), s1)
|
||
|
||
def test_invalid_modes(self):
|
||
for mode in ('U', 'rU', 'r+U'):
|
||
with self.assertRaises(ValueError) as cm:
|
||
codecs.open(os_helper.TESTFN, mode, encoding=self.encoding)
|
||
self.assertIn('invalid mode', str(cm.exception))
|
||
|
||
for mode in ('rt', 'wt', 'at', 'r+t'):
|
||
with self.assertRaises(ValueError) as cm:
|
||
codecs.open(os_helper.TESTFN, mode, encoding=self.encoding)
|
||
self.assertIn("can't have text and binary mode at once",
|
||
str(cm.exception))
|
||
|
||
|
||
class UTF16LETest(ReadTest, unittest.TestCase):
|
||
encoding = "utf-16-le"
|
||
ill_formed_sequence = b"\x80\xdc"
|
||
|
||
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"
|
||
ill_formed_sequence = b"\xdc\x80"
|
||
|
||
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"
|
||
ill_formed_sequence = b"\xed\xb2\x80"
|
||
ill_formed_sequence_replace = "\ufffd" * 3
|
||
BOM = b''
|
||
|
||
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_decode_error(self):
|
||
for data, error_handler, expected in (
|
||
(b'[\x80\xff]', 'ignore', '[]'),
|
||
(b'[\x80\xff]', 'replace', '[\ufffd\ufffd]'),
|
||
(b'[\x80\xff]', 'surrogateescape', '[\udc80\udcff]'),
|
||
(b'[\x80\xff]', 'backslashreplace', '[\\x80\\xff]'),
|
||
):
|
||
with self.subTest(data=data, error_handler=error_handler,
|
||
expected=expected):
|
||
self.assertEqual(data.decode(self.encoding, error_handler),
|
||
expected)
|
||
|
||
def test_lone_surrogates(self):
|
||
super().test_lone_surrogates()
|
||
# not sure if this is making sense for
|
||
# UTF-16 and UTF-32
|
||
self.assertEqual("[\uDC80]".encode(self.encoding, "surrogateescape"),
|
||
self.BOM + b'[\x80]')
|
||
|
||
with self.assertRaises(UnicodeEncodeError) as cm:
|
||
"[\uDC80\uD800\uDFFF]".encode(self.encoding, "surrogateescape")
|
||
exc = cm.exception
|
||
self.assertEqual(exc.object[exc.start:exc.end], '\uD800\uDFFF')
|
||
|
||
def test_surrogatepass_handler(self):
|
||
self.assertEqual("abc\ud800def".encode(self.encoding, "surrogatepass"),
|
||
self.BOM + b"abc\xed\xa0\x80def")
|
||
self.assertEqual("\U00010fff\uD800".encode(self.encoding, "surrogatepass"),
|
||
self.BOM + b"\xf0\x90\xbf\xbf\xed\xa0\x80")
|
||
self.assertEqual("[\uD800\uDC80]".encode(self.encoding, "surrogatepass"),
|
||
self.BOM + b'[\xed\xa0\x80\xed\xb2\x80]')
|
||
|
||
self.assertEqual(b"abc\xed\xa0\x80def".decode(self.encoding, "surrogatepass"),
|
||
"abc\ud800def")
|
||
self.assertEqual(b"\xf0\x90\xbf\xbf\xed\xa0\x80".decode(self.encoding, "surrogatepass"),
|
||
"\U00010fff\uD800")
|
||
|
||
self.assertTrue(codecs.lookup_error("surrogatepass"))
|
||
with self.assertRaises(UnicodeDecodeError):
|
||
b"abc\xed\xa0".decode(self.encoding, "surrogatepass")
|
||
with self.assertRaises(UnicodeDecodeError):
|
||
b"abc\xed\xa0z".decode(self.encoding, "surrogatepass")
|
||
|
||
def test_incremental_errors(self):
|
||
# Test that the incremental decoder can fail with final=False.
|
||
# See issue #24214
|
||
cases = [b'\x80', b'\xBF', b'\xC0', b'\xC1', b'\xF5', b'\xF6', b'\xFF']
|
||
for prefix in (b'\xC2', b'\xDF', b'\xE0', b'\xE0\xA0', b'\xEF',
|
||
b'\xEF\xBF', b'\xF0', b'\xF0\x90', b'\xF0\x90\x80',
|
||
b'\xF4', b'\xF4\x8F', b'\xF4\x8F\xBF'):
|
||
for suffix in b'\x7F', b'\xC0':
|
||
cases.append(prefix + suffix)
|
||
cases.extend((b'\xE0\x80', b'\xE0\x9F', b'\xED\xA0\x80',
|
||
b'\xED\xBF\xBF', b'\xF0\x80', b'\xF0\x8F', b'\xF4\x90'))
|
||
|
||
for data in cases:
|
||
with self.subTest(data=data):
|
||
dec = codecs.getincrementaldecoder(self.encoding)()
|
||
self.assertRaises(UnicodeDecodeError, dec.decode, data)
|
||
|
||
|
||
class UTF7Test(ReadTest, unittest.TestCase):
|
||
encoding = "utf-7"
|
||
|
||
def test_ascii(self):
|
||
# Set D (directly encoded characters)
|
||
set_d = ('ABCDEFGHIJKLMNOPQRSTUVWXYZ'
|
||
'abcdefghijklmnopqrstuvwxyz'
|
||
'0123456789'
|
||
'\'(),-./:?')
|
||
self.assertEqual(set_d.encode(self.encoding), set_d.encode('ascii'))
|
||
self.assertEqual(set_d.encode('ascii').decode(self.encoding), set_d)
|
||
# Set O (optional direct characters)
|
||
set_o = ' !"#$%&*;<=>@[]^_`{|}'
|
||
self.assertEqual(set_o.encode(self.encoding), set_o.encode('ascii'))
|
||
self.assertEqual(set_o.encode('ascii').decode(self.encoding), set_o)
|
||
# +
|
||
self.assertEqual('a+b'.encode(self.encoding), b'a+-b')
|
||
self.assertEqual(b'a+-b'.decode(self.encoding), 'a+b')
|
||
# White spaces
|
||
ws = ' \t\n\r'
|
||
self.assertEqual(ws.encode(self.encoding), ws.encode('ascii'))
|
||
self.assertEqual(ws.encode('ascii').decode(self.encoding), ws)
|
||
# Other ASCII characters
|
||
other_ascii = ''.join(sorted(set(bytes(range(0x80)).decode()) -
|
||
set(set_d + set_o + '+' + ws)))
|
||
self.assertEqual(other_ascii.encode(self.encoding),
|
||
b'+AAAAAQACAAMABAAFAAYABwAIAAsADAAOAA8AEAARABIAEwAU'
|
||
b'ABUAFgAXABgAGQAaABsAHAAdAB4AHwBcAH4Afw-')
|
||
|
||
def test_partial(self):
|
||
self.check_partial(
|
||
'a+-b\x00c\x80d\u0100e\U00010000f',
|
||
[
|
||
'a',
|
||
'a',
|
||
'a+',
|
||
'a+-',
|
||
'a+-b',
|
||
'a+-b',
|
||
'a+-b',
|
||
'a+-b',
|
||
'a+-b',
|
||
'a+-b\x00',
|
||
'a+-b\x00c',
|
||
'a+-b\x00c',
|
||
'a+-b\x00c',
|
||
'a+-b\x00c',
|
||
'a+-b\x00c',
|
||
'a+-b\x00c\x80',
|
||
'a+-b\x00c\x80d',
|
||
'a+-b\x00c\x80d',
|
||
'a+-b\x00c\x80d',
|
||
'a+-b\x00c\x80d',
|
||
'a+-b\x00c\x80d',
|
||
'a+-b\x00c\x80d\u0100',
|
||
'a+-b\x00c\x80d\u0100e',
|
||
'a+-b\x00c\x80d\u0100e',
|
||
'a+-b\x00c\x80d\u0100e',
|
||
'a+-b\x00c\x80d\u0100e',
|
||
'a+-b\x00c\x80d\u0100e',
|
||
'a+-b\x00c\x80d\u0100e',
|
||
'a+-b\x00c\x80d\u0100e',
|
||
'a+-b\x00c\x80d\u0100e',
|
||
'a+-b\x00c\x80d\u0100e\U00010000',
|
||
'a+-b\x00c\x80d\u0100e\U00010000f',
|
||
]
|
||
)
|
||
|
||
def test_errors(self):
|
||
tests = [
|
||
(b'\xffb', '\ufffdb'),
|
||
(b'a\xffb', 'a\ufffdb'),
|
||
(b'a\xff\xffb', 'a\ufffd\ufffdb'),
|
||
(b'a+IK', 'a\ufffd'),
|
||
(b'a+IK-b', 'a\ufffdb'),
|
||
(b'a+IK,b', 'a\ufffdb'),
|
||
(b'a+IKx', 'a\u20ac\ufffd'),
|
||
(b'a+IKx-b', 'a\u20ac\ufffdb'),
|
||
(b'a+IKwgr', 'a\u20ac\ufffd'),
|
||
(b'a+IKwgr-b', 'a\u20ac\ufffdb'),
|
||
(b'a+IKwgr,', 'a\u20ac\ufffd'),
|
||
(b'a+IKwgr,-b', 'a\u20ac\ufffd-b'),
|
||
(b'a+IKwgrB', 'a\u20ac\u20ac\ufffd'),
|
||
(b'a+IKwgrB-b', 'a\u20ac\u20ac\ufffdb'),
|
||
(b'a+/,+IKw-b', 'a\ufffd\u20acb'),
|
||
(b'a+//,+IKw-b', 'a\ufffd\u20acb'),
|
||
(b'a+///,+IKw-b', 'a\uffff\ufffd\u20acb'),
|
||
(b'a+////,+IKw-b', 'a\uffff\ufffd\u20acb'),
|
||
(b'a+IKw-b\xff', 'a\u20acb\ufffd'),
|
||
(b'a+IKw\xffb', 'a\u20ac\ufffdb'),
|
||
(b'a+@b', 'a\ufffdb'),
|
||
]
|
||
for raw, expected in tests:
|
||
with self.subTest(raw=raw):
|
||
self.assertRaises(UnicodeDecodeError, codecs.utf_7_decode,
|
||
raw, 'strict', True)
|
||
self.assertEqual(raw.decode('utf-7', 'replace'), expected)
|
||
|
||
def test_nonbmp(self):
|
||
self.assertEqual('\U000104A0'.encode(self.encoding), b'+2AHcoA-')
|
||
self.assertEqual('\ud801\udca0'.encode(self.encoding), b'+2AHcoA-')
|
||
self.assertEqual(b'+2AHcoA-'.decode(self.encoding), '\U000104A0')
|
||
self.assertEqual(b'+2AHcoA'.decode(self.encoding), '\U000104A0')
|
||
self.assertEqual('\u20ac\U000104A0'.encode(self.encoding), b'+IKzYAdyg-')
|
||
self.assertEqual(b'+IKzYAdyg-'.decode(self.encoding), '\u20ac\U000104A0')
|
||
self.assertEqual(b'+IKzYAdyg'.decode(self.encoding), '\u20ac\U000104A0')
|
||
self.assertEqual('\u20ac\u20ac\U000104A0'.encode(self.encoding),
|
||
b'+IKwgrNgB3KA-')
|
||
self.assertEqual(b'+IKwgrNgB3KA-'.decode(self.encoding),
|
||
'\u20ac\u20ac\U000104A0')
|
||
self.assertEqual(b'+IKwgrNgB3KA'.decode(self.encoding),
|
||
'\u20ac\u20ac\U000104A0')
|
||
|
||
def test_lone_surrogates(self):
|
||
tests = [
|
||
(b'a+2AE-b', 'a\ud801b'),
|
||
(b'a+2AE\xffb', 'a\ufffdb'),
|
||
(b'a+2AE', 'a\ufffd'),
|
||
(b'a+2AEA-b', 'a\ufffdb'),
|
||
(b'a+2AH-b', 'a\ufffdb'),
|
||
(b'a+IKzYAQ-b', 'a\u20ac\ud801b'),
|
||
(b'a+IKzYAQ\xffb', 'a\u20ac\ufffdb'),
|
||
(b'a+IKzYAQA-b', 'a\u20ac\ufffdb'),
|
||
(b'a+IKzYAd-b', 'a\u20ac\ufffdb'),
|
||
(b'a+IKwgrNgB-b', 'a\u20ac\u20ac\ud801b'),
|
||
(b'a+IKwgrNgB\xffb', 'a\u20ac\u20ac\ufffdb'),
|
||
(b'a+IKwgrNgB', 'a\u20ac\u20ac\ufffd'),
|
||
(b'a+IKwgrNgBA-b', 'a\u20ac\u20ac\ufffdb'),
|
||
]
|
||
for raw, expected in tests:
|
||
with self.subTest(raw=raw):
|
||
self.assertEqual(raw.decode('utf-7', 'replace'), expected)
|
||
|
||
|
||
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(UTF8Test, unittest.TestCase):
|
||
encoding = "utf-8-sig"
|
||
BOM = codecs.BOM_UTF8
|
||
|
||
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))
|
||
self.assertEqual(codecs.escape_decode(bytearray()), (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"[\\]", b"[\\]")
|
||
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"[\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"[\x410]", b"[A0]")
|
||
for i in range(97, 123):
|
||
b = bytes([i])
|
||
if b not in b'abfnrtvx':
|
||
with self.assertWarns(DeprecationWarning):
|
||
check(b"\\" + b, b"\\" + b)
|
||
with self.assertWarns(DeprecationWarning):
|
||
check(b"\\" + b.upper(), b"\\" + b.upper())
|
||
with self.assertWarns(DeprecationWarning):
|
||
check(br"\8", b"\\8")
|
||
with self.assertWarns(DeprecationWarning):
|
||
check(br"\9", b"\\9")
|
||
with self.assertWarns(DeprecationWarning):
|
||
check(b"\\\xfa", b"\\\xfa")
|
||
|
||
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))
|
||
|
||
|
||
# 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"))
|
||
|
||
def test_decode_invalid(self):
|
||
testcases = [
|
||
(b"xn--w&", "strict", UnicodeError()),
|
||
(b"xn--w&", "ignore", "xn-"),
|
||
]
|
||
for puny, errors, expected in testcases:
|
||
with self.subTest(puny=puny, errors=errors):
|
||
if isinstance(expected, Exception):
|
||
self.assertRaises(UnicodeError, puny.decode, "punycode", errors)
|
||
else:
|
||
self.assertEqual(puny.decode("punycode", errors), expected)
|
||
|
||
|
||
# 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"")
|
||
|
||
def test_errors(self):
|
||
"""Only supports "strict" error handler"""
|
||
"python.org".encode("idna", "strict")
|
||
b"python.org".decode("idna", "strict")
|
||
for errors in ("ignore", "replace", "backslashreplace",
|
||
"surrogateescape"):
|
||
self.assertRaises(Exception, "python.org".encode, "idna", errors)
|
||
self.assertRaises(Exception,
|
||
b"python.org".decode, "idna", errors)
|
||
|
||
|
||
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')
|
||
|
||
# test keywords
|
||
self.assertEqual(codecs.decode(obj=b'\xe4\xf6\xfc', encoding='latin-1'),
|
||
'\xe4\xf6\xfc')
|
||
self.assertEqual(codecs.decode(b'[\xff]', 'ascii', errors='ignore'),
|
||
'[]')
|
||
|
||
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')
|
||
|
||
# test keywords
|
||
self.assertEqual(codecs.encode(obj='\xe4\xf6\xfc', encoding='latin-1'),
|
||
b'\xe4\xf6\xfc')
|
||
self.assertEqual(codecs.encode('[\xff]', 'ascii', errors='ignore'),
|
||
b'[]')
|
||
|
||
def test_register(self):
|
||
self.assertRaises(TypeError, codecs.register)
|
||
self.assertRaises(TypeError, codecs.register, 42)
|
||
|
||
def test_unregister(self):
|
||
name = "nonexistent_codec_name"
|
||
search_function = mock.Mock()
|
||
codecs.register(search_function)
|
||
self.assertRaises(TypeError, codecs.lookup, name)
|
||
search_function.assert_called_with(name)
|
||
search_function.reset_mock()
|
||
|
||
codecs.unregister(search_function)
|
||
self.assertRaises(LookupError, codecs.lookup, name)
|
||
search_function.assert_not_called()
|
||
|
||
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')
|
||
|
||
def test_all(self):
|
||
api = (
|
||
"encode", "decode",
|
||
"register", "CodecInfo", "Codec", "IncrementalEncoder",
|
||
"IncrementalDecoder", "StreamReader", "StreamWriter", "lookup",
|
||
"getencoder", "getdecoder", "getincrementalencoder",
|
||
"getincrementaldecoder", "getreader", "getwriter",
|
||
"register_error", "lookup_error",
|
||
"strict_errors", "replace_errors", "ignore_errors",
|
||
"xmlcharrefreplace_errors", "backslashreplace_errors",
|
||
"namereplace_errors",
|
||
"open", "EncodedFile",
|
||
"iterencode", "iterdecode",
|
||
"BOM", "BOM_BE", "BOM_LE",
|
||
"BOM_UTF8", "BOM_UTF16", "BOM_UTF16_BE", "BOM_UTF16_LE",
|
||
"BOM_UTF32", "BOM_UTF32_BE", "BOM_UTF32_LE",
|
||
"BOM32_BE", "BOM32_LE", "BOM64_BE", "BOM64_LE", # Undocumented
|
||
"StreamReaderWriter", "StreamRecoder",
|
||
)
|
||
self.assertCountEqual(api, codecs.__all__)
|
||
for api in codecs.__all__:
|
||
getattr(codecs, api)
|
||
|
||
def test_open(self):
|
||
self.addCleanup(os_helper.unlink, os_helper.TESTFN)
|
||
for mode in ('w', 'r', 'r+', 'w+', 'a', 'a+'):
|
||
with self.subTest(mode), \
|
||
codecs.open(os_helper.TESTFN, mode, 'ascii') as file:
|
||
self.assertIsInstance(file, codecs.StreamReaderWriter)
|
||
|
||
def test_undefined(self):
|
||
self.assertRaises(UnicodeError, codecs.encode, 'abc', 'undefined')
|
||
self.assertRaises(UnicodeError, codecs.decode, b'abc', 'undefined')
|
||
self.assertRaises(UnicodeError, codecs.encode, '', 'undefined')
|
||
self.assertRaises(UnicodeError, codecs.decode, b'', 'undefined')
|
||
for errors in ('strict', 'ignore', 'replace', 'backslashreplace'):
|
||
self.assertRaises(UnicodeError,
|
||
codecs.encode, 'abc', 'undefined', errors)
|
||
self.assertRaises(UnicodeError,
|
||
codecs.decode, b'abc', 'undefined', errors)
|
||
|
||
def test_file_closes_if_lookup_error_raised(self):
|
||
mock_open = mock.mock_open()
|
||
with mock.patch('builtins.open', mock_open) as file:
|
||
with self.assertRaises(LookupError):
|
||
codecs.open(os_helper.TESTFN, 'wt', 'invalid-encoding')
|
||
|
||
file().close.assert_called()
|
||
|
||
|
||
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",
|
||
"cp1125",
|
||
"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_t",
|
||
"koi8_u",
|
||
"kz1048",
|
||
"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",
|
||
"utf_16",
|
||
"utf_16_be",
|
||
"utf_16_le",
|
||
"utf_7",
|
||
"utf_8",
|
||
]
|
||
|
||
if hasattr(codecs, "mbcs_encode"):
|
||
all_unicode_encodings.append("mbcs")
|
||
if hasattr(codecs, "oem_encode"):
|
||
all_unicode_encodings.append("oem")
|
||
|
||
# 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_stateful = [
|
||
"punycode",
|
||
]
|
||
|
||
|
||
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("_", "-"))
|
||
|
||
(b, size) = codecs.getencoder(encoding)(s)
|
||
self.assertEqual(size, len(s), "encoding=%r" % encoding)
|
||
(chars, size) = codecs.getdecoder(encoding)(b)
|
||
self.assertEqual(chars, s, "encoding=%r" % encoding)
|
||
|
||
if encoding not in broken_unicode_with_stateful:
|
||
# 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, "encoding=%r" % encoding)
|
||
|
||
if encoding not in broken_unicode_with_stateful:
|
||
# check incremental decoder/encoder and iterencode()/iterdecode()
|
||
try:
|
||
encoder = codecs.getincrementalencoder(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,
|
||
"encoding=%r" % encoding)
|
||
|
||
# check iterencode()/iterdecode()
|
||
result = "".join(codecs.iterdecode(
|
||
codecs.iterencode(s, encoding), encoding))
|
||
self.assertEqual(result, s, "encoding=%r" % 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")
|
||
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,
|
||
"encoding=%r" % encoding)
|
||
|
||
@support.cpython_only
|
||
@unittest.skipIf(_testcapi is None, 'need _testcapi module')
|
||
def test_basics_capi(self):
|
||
s = "abc123" # all codecs should be able to encode these
|
||
for encoding in all_unicode_encodings:
|
||
if encoding not in broken_unicode_with_stateful:
|
||
# check incremental decoder/encoder (fetched via the C API)
|
||
try:
|
||
cencoder = _testcapi.codec_incrementalencoder(encoding)
|
||
except LookupError: # no IncrementalEncoder
|
||
pass
|
||
else:
|
||
# 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,
|
||
"encoding=%r" % encoding)
|
||
|
||
if encoding not in ("idna", "mbcs"):
|
||
# check incremental decoder/encoder with errors argument
|
||
try:
|
||
cencoder = _testcapi.codec_incrementalencoder(encoding, "ignore")
|
||
except LookupError: # no IncrementalEncoder
|
||
pass
|
||
else:
|
||
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,
|
||
"encoding=%r" % 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_stateful:
|
||
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)
|
||
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_unicode_with_stateful:
|
||
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", "backslashreplace", "ab"),
|
||
("ab\\x02", 3)
|
||
)
|
||
|
||
self.assertEqual(
|
||
codecs.charmap_decode(b"\x00\x01\x02", "backslashreplace", "ab\ufffe"),
|
||
("ab\\x02", 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", "backslashreplace",
|
||
{0: 'a', 1: 'b'}),
|
||
("ab\\x02", 3)
|
||
)
|
||
|
||
self.assertEqual(
|
||
codecs.charmap_decode(b"\x00\x01\x02", "backslashreplace",
|
||
{0: 'a', 1: 'b', 2: None}),
|
||
("ab\\x02", 3)
|
||
)
|
||
|
||
# Issue #14850
|
||
self.assertEqual(
|
||
codecs.charmap_decode(b"\x00\x01\x02", "backslashreplace",
|
||
{0: 'a', 1: 'b', 2: '\ufffe'}),
|
||
("ab\\x02", 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))
|
||
)
|
||
|
||
self.assertRaisesRegex(TypeError,
|
||
"character mapping must be in range\\(0x110000\\)",
|
||
codecs.charmap_decode,
|
||
b"\x00\x01\x02", "strict", {0: "A", 1: 'Bb', 2: -2}
|
||
)
|
||
|
||
self.assertRaisesRegex(TypeError,
|
||
"character mapping must be in range\\(0x110000\\)",
|
||
codecs.charmap_decode,
|
||
b"\x00\x01\x02", "strict", {0: "A", 1: 'Bb', 2: 999999999}
|
||
)
|
||
|
||
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", "backslashreplace",
|
||
{0: a, 1: b}),
|
||
("ab\\x02", 3)
|
||
)
|
||
|
||
self.assertEqual(
|
||
codecs.charmap_decode(b"\x00\x01\x02", "backslashreplace",
|
||
{0: a, 1: b, 2: 0xFFFE}),
|
||
("ab\\x02", 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")
|
||
self.assertTrue(f.closed)
|
||
|
||
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 a unicode string is supported and 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.assertEqual(codecs.unicode_escape_decode(r"\U00110000", "backslashreplace"),
|
||
(r"\x5c\x55\x30\x30\x31\x31\x30\x30\x30\x30", 10))
|
||
|
||
self.assertRaises(UnicodeDecodeError, codecs.raw_unicode_escape_decode, br"\U00110000")
|
||
self.assertEqual(codecs.raw_unicode_escape_decode(r"\U00110000", "replace"), ("\ufffd", 10))
|
||
self.assertEqual(codecs.raw_unicode_escape_decode(r"\U00110000", "backslashreplace"),
|
||
(r"\x5c\x55\x30\x30\x31\x31\x30\x30\x30\x30", 10))
|
||
|
||
|
||
class UnicodeEscapeTest(ReadTest, unittest.TestCase):
|
||
encoding = "unicode-escape"
|
||
|
||
test_lone_surrogates = None
|
||
|
||
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"[\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 i in range(97, 123):
|
||
b = bytes([i])
|
||
if b not in b'abfnrtuvx':
|
||
with self.assertWarns(DeprecationWarning):
|
||
check(b"\\" + b, "\\" + chr(i))
|
||
if b.upper() not in b'UN':
|
||
with self.assertWarns(DeprecationWarning):
|
||
check(b"\\" + b.upper(), "\\" + chr(i-32))
|
||
with self.assertWarns(DeprecationWarning):
|
||
check(br"\8", "\\8")
|
||
with self.assertWarns(DeprecationWarning):
|
||
check(br"\9", "\\9")
|
||
with self.assertWarns(DeprecationWarning):
|
||
check(b"\\\xfa", "\\\xfa")
|
||
|
||
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))
|
||
|
||
def test_partial(self):
|
||
self.check_partial(
|
||
"\x00\t\n\r\\\xff\uffff\U00010000",
|
||
[
|
||
'',
|
||
'',
|
||
'',
|
||
'\x00',
|
||
'\x00',
|
||
'\x00\t',
|
||
'\x00\t',
|
||
'\x00\t\n',
|
||
'\x00\t\n',
|
||
'\x00\t\n\r',
|
||
'\x00\t\n\r',
|
||
'\x00\t\n\r\\',
|
||
'\x00\t\n\r\\',
|
||
'\x00\t\n\r\\',
|
||
'\x00\t\n\r\\',
|
||
'\x00\t\n\r\\\xff',
|
||
'\x00\t\n\r\\\xff',
|
||
'\x00\t\n\r\\\xff',
|
||
'\x00\t\n\r\\\xff',
|
||
'\x00\t\n\r\\\xff',
|
||
'\x00\t\n\r\\\xff',
|
||
'\x00\t\n\r\\\xff\uffff',
|
||
'\x00\t\n\r\\\xff\uffff',
|
||
'\x00\t\n\r\\\xff\uffff',
|
||
'\x00\t\n\r\\\xff\uffff',
|
||
'\x00\t\n\r\\\xff\uffff',
|
||
'\x00\t\n\r\\\xff\uffff',
|
||
'\x00\t\n\r\\\xff\uffff',
|
||
'\x00\t\n\r\\\xff\uffff',
|
||
'\x00\t\n\r\\\xff\uffff',
|
||
'\x00\t\n\r\\\xff\uffff',
|
||
'\x00\t\n\r\\\xff\uffff\U00010000',
|
||
]
|
||
)
|
||
|
||
class RawUnicodeEscapeTest(ReadTest, unittest.TestCase):
|
||
encoding = "raw-unicode-escape"
|
||
|
||
test_lone_surrogates = None
|
||
|
||
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))
|
||
|
||
def test_partial(self):
|
||
self.check_partial(
|
||
"\x00\t\n\r\\\xff\uffff\U00010000",
|
||
[
|
||
'\x00',
|
||
'\x00\t',
|
||
'\x00\t\n',
|
||
'\x00\t\n\r',
|
||
'\x00\t\n\r',
|
||
'\x00\t\n\r\\\xff',
|
||
'\x00\t\n\r\\\xff',
|
||
'\x00\t\n\r\\\xff',
|
||
'\x00\t\n\r\\\xff',
|
||
'\x00\t\n\r\\\xff',
|
||
'\x00\t\n\r\\\xff',
|
||
'\x00\t\n\r\\\xff\uffff',
|
||
'\x00\t\n\r\\\xff\uffff',
|
||
'\x00\t\n\r\\\xff\uffff',
|
||
'\x00\t\n\r\\\xff\uffff',
|
||
'\x00\t\n\r\\\xff\uffff',
|
||
'\x00\t\n\r\\\xff\uffff',
|
||
'\x00\t\n\r\\\xff\uffff',
|
||
'\x00\t\n\r\\\xff\uffff',
|
||
'\x00\t\n\r\\\xff\uffff',
|
||
'\x00\t\n\r\\\xff\uffff',
|
||
'\x00\t\n\r\\\xff\uffff\U00010000',
|
||
]
|
||
)
|
||
|
||
|
||
class EscapeEncodeTest(unittest.TestCase):
|
||
|
||
def test_escape_encode(self):
|
||
tests = [
|
||
(b'', (b'', 0)),
|
||
(b'foobar', (b'foobar', 6)),
|
||
(b'spam\0eggs', (b'spam\\x00eggs', 9)),
|
||
(b'a\'b', (b"a\\'b", 3)),
|
||
(b'b\\c', (b'b\\\\c', 3)),
|
||
(b'c\nd', (b'c\\nd', 3)),
|
||
(b'd\re', (b'd\\re', 3)),
|
||
(b'f\x7fg', (b'f\\x7fg', 3)),
|
||
]
|
||
for data, output in tests:
|
||
with self.subTest(data=data):
|
||
self.assertEqual(codecs.escape_encode(data), output)
|
||
self.assertRaises(TypeError, codecs.escape_encode, 'spam')
|
||
self.assertRaises(TypeError, codecs.escape_encode, bytearray(b'spam'))
|
||
|
||
|
||
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(os_helper.unlink, os_helper.TESTFN)
|
||
for encoding in tests:
|
||
# Check if the BOM is written only once
|
||
with codecs.open(os_helper.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(os_helper.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(os_helper.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(os_helper.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(os_helper.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",
|
||
]
|
||
|
||
transform_aliases = {
|
||
"base64_codec": ["base64", "base_64"],
|
||
"uu_codec": ["uu"],
|
||
"quopri_codec": ["quopri", "quoted_printable", "quotedprintable"],
|
||
"hex_codec": ["hex"],
|
||
"rot_13": ["rot13"],
|
||
}
|
||
|
||
try:
|
||
import zlib
|
||
except ImportError:
|
||
zlib = None
|
||
else:
|
||
bytes_transform_encodings.append("zlib_codec")
|
||
transform_aliases["zlib_codec"] = ["zip", "zlib"]
|
||
try:
|
||
import bz2
|
||
except ImportError:
|
||
pass
|
||
else:
|
||
bytes_transform_encodings.append("bz2_codec")
|
||
transform_aliases["bz2_codec"] = ["bz2"]
|
||
|
||
|
||
class TransformCodecTest(unittest.TestCase):
|
||
|
||
def test_basics(self):
|
||
binput = bytes(range(256))
|
||
for encoding in bytes_transform_encodings:
|
||
with self.subTest(encoding=encoding):
|
||
# 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:
|
||
with self.subTest(encoding=encoding):
|
||
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:
|
||
with self.subTest(encoding=encoding):
|
||
sin = codecs.encode(b"\x80", encoding)
|
||
reader = codecs.getreader(encoding)(io.BytesIO(sin))
|
||
sout = reader.readline()
|
||
self.assertEqual(sout, b"\x80")
|
||
|
||
def test_buffer_api_usage(self):
|
||
# We check all the transform codecs accept memoryview input
|
||
# for encoding and decoding
|
||
# and also that they roundtrip correctly
|
||
original = b"12345\x80"
|
||
for encoding in bytes_transform_encodings:
|
||
with self.subTest(encoding=encoding):
|
||
data = original
|
||
view = memoryview(data)
|
||
data = codecs.encode(data, encoding)
|
||
view_encoded = codecs.encode(view, encoding)
|
||
self.assertEqual(view_encoded, data)
|
||
view = memoryview(data)
|
||
data = codecs.decode(data, encoding)
|
||
self.assertEqual(data, original)
|
||
view_decoded = codecs.decode(view, encoding)
|
||
self.assertEqual(view_decoded, data)
|
||
|
||
def test_text_to_binary_denylists_binary_transforms(self):
|
||
# Check binary -> binary codecs give a good error for str input
|
||
bad_input = "bad input type"
|
||
for encoding in bytes_transform_encodings:
|
||
with self.subTest(encoding=encoding):
|
||
fmt = (r"{!r} is not a text encoding; "
|
||
r"use codecs.encode\(\) to handle arbitrary codecs")
|
||
msg = fmt.format(encoding)
|
||
with self.assertRaisesRegex(LookupError, msg) as failure:
|
||
bad_input.encode(encoding)
|
||
self.assertIsNone(failure.exception.__cause__)
|
||
|
||
def test_text_to_binary_denylists_text_transforms(self):
|
||
# Check str.encode gives a good error message for str -> str codecs
|
||
msg = (r"^'rot_13' is not a text encoding; "
|
||
r"use codecs.encode\(\) to handle arbitrary codecs")
|
||
with self.assertRaisesRegex(LookupError, msg):
|
||
"just an example message".encode("rot_13")
|
||
|
||
def test_binary_to_text_denylists_binary_transforms(self):
|
||
# Check bytes.decode and bytearray.decode give a good error
|
||
# message for binary -> binary codecs
|
||
data = b"encode first to ensure we meet any format restrictions"
|
||
for encoding in bytes_transform_encodings:
|
||
with self.subTest(encoding=encoding):
|
||
encoded_data = codecs.encode(data, encoding)
|
||
fmt = (r"{!r} is not a text encoding; "
|
||
r"use codecs.decode\(\) to handle arbitrary codecs")
|
||
msg = fmt.format(encoding)
|
||
with self.assertRaisesRegex(LookupError, msg):
|
||
encoded_data.decode(encoding)
|
||
with self.assertRaisesRegex(LookupError, msg):
|
||
bytearray(encoded_data).decode(encoding)
|
||
|
||
def test_binary_to_text_denylists_text_transforms(self):
|
||
# Check str -> str codec gives a good error for binary input
|
||
for bad_input in (b"immutable", bytearray(b"mutable")):
|
||
with self.subTest(bad_input=bad_input):
|
||
msg = (r"^'rot_13' is not a text encoding; "
|
||
r"use codecs.decode\(\) to handle arbitrary codecs")
|
||
with self.assertRaisesRegex(LookupError, msg) as failure:
|
||
bad_input.decode("rot_13")
|
||
self.assertIsNone(failure.exception.__cause__)
|
||
|
||
@unittest.skipUnless(zlib, "Requires zlib support")
|
||
def test_custom_zlib_error_is_wrapped(self):
|
||
# Check zlib codec gives a good error for malformed input
|
||
msg = "^decoding with 'zlib_codec' codec failed"
|
||
with self.assertRaisesRegex(Exception, msg) as failure:
|
||
codecs.decode(b"hello", "zlib_codec")
|
||
self.assertIsInstance(failure.exception.__cause__,
|
||
type(failure.exception))
|
||
|
||
def test_custom_hex_error_is_wrapped(self):
|
||
# Check hex codec gives a good error for malformed input
|
||
msg = "^decoding with 'hex_codec' codec failed"
|
||
with self.assertRaisesRegex(Exception, msg) as failure:
|
||
codecs.decode(b"hello", "hex_codec")
|
||
self.assertIsInstance(failure.exception.__cause__,
|
||
type(failure.exception))
|
||
|
||
# Unfortunately, the bz2 module throws OSError, which the codec
|
||
# machinery currently can't wrap :(
|
||
|
||
# Ensure codec aliases from http://bugs.python.org/issue7475 work
|
||
def test_aliases(self):
|
||
for codec_name, aliases in transform_aliases.items():
|
||
expected_name = codecs.lookup(codec_name).name
|
||
for alias in aliases:
|
||
with self.subTest(alias=alias):
|
||
info = codecs.lookup(alias)
|
||
self.assertEqual(info.name, expected_name)
|
||
|
||
def test_quopri_stateless(self):
|
||
# Should encode with quotetabs=True
|
||
encoded = codecs.encode(b"space tab\teol \n", "quopri-codec")
|
||
self.assertEqual(encoded, b"space=20tab=09eol=20\n")
|
||
# But should still support unescaped tabs and spaces
|
||
unescaped = b"space tab eol\n"
|
||
self.assertEqual(codecs.decode(unescaped, "quopri-codec"), unescaped)
|
||
|
||
def test_uu_invalid(self):
|
||
# Missing "begin" line
|
||
self.assertRaises(ValueError, codecs.decode, b"", "uu-codec")
|
||
|
||
|
||
# The codec system tries to wrap exceptions in order to ensure the error
|
||
# mentions the operation being performed and the codec involved. We
|
||
# currently *only* want this to happen for relatively stateless
|
||
# exceptions, where the only significant information they contain is their
|
||
# type and a single str argument.
|
||
|
||
# Use a local codec registry to avoid appearing to leak objects when
|
||
# registering multiple search functions
|
||
_TEST_CODECS = {}
|
||
|
||
def _get_test_codec(codec_name):
|
||
return _TEST_CODECS.get(codec_name)
|
||
|
||
|
||
class ExceptionChainingTest(unittest.TestCase):
|
||
|
||
def setUp(self):
|
||
self.codec_name = 'exception_chaining_test'
|
||
codecs.register(_get_test_codec)
|
||
self.addCleanup(codecs.unregister, _get_test_codec)
|
||
|
||
# We store the object to raise on the instance because of a bad
|
||
# interaction between the codec caching (which means we can't
|
||
# recreate the codec entry) and regrtest refleak hunting (which
|
||
# runs the same test instance multiple times). This means we
|
||
# need to ensure the codecs call back in to the instance to find
|
||
# out which exception to raise rather than binding them in a
|
||
# closure to an object that may change on the next run
|
||
self.obj_to_raise = RuntimeError
|
||
|
||
def tearDown(self):
|
||
_TEST_CODECS.pop(self.codec_name, None)
|
||
# Issue #22166: Also pop from caches to avoid appearance of ref leaks
|
||
encodings._cache.pop(self.codec_name, None)
|
||
|
||
def set_codec(self, encode, decode):
|
||
codec_info = codecs.CodecInfo(encode, decode,
|
||
name=self.codec_name)
|
||
_TEST_CODECS[self.codec_name] = codec_info
|
||
|
||
@contextlib.contextmanager
|
||
def assertWrapped(self, operation, exc_type, msg):
|
||
full_msg = r"{} with {!r} codec failed \({}: {}\)".format(
|
||
operation, self.codec_name, exc_type.__name__, msg)
|
||
with self.assertRaisesRegex(exc_type, full_msg) as caught:
|
||
yield caught
|
||
self.assertIsInstance(caught.exception.__cause__, exc_type)
|
||
self.assertIsNotNone(caught.exception.__cause__.__traceback__)
|
||
|
||
def raise_obj(self, *args, **kwds):
|
||
# Helper to dynamically change the object raised by a test codec
|
||
raise self.obj_to_raise
|
||
|
||
def check_wrapped(self, obj_to_raise, msg, exc_type=RuntimeError):
|
||
self.obj_to_raise = obj_to_raise
|
||
self.set_codec(self.raise_obj, self.raise_obj)
|
||
with self.assertWrapped("encoding", exc_type, msg):
|
||
"str_input".encode(self.codec_name)
|
||
with self.assertWrapped("encoding", exc_type, msg):
|
||
codecs.encode("str_input", self.codec_name)
|
||
with self.assertWrapped("decoding", exc_type, msg):
|
||
b"bytes input".decode(self.codec_name)
|
||
with self.assertWrapped("decoding", exc_type, msg):
|
||
codecs.decode(b"bytes input", self.codec_name)
|
||
|
||
def test_raise_by_type(self):
|
||
self.check_wrapped(RuntimeError, "")
|
||
|
||
def test_raise_by_value(self):
|
||
msg = "This should be wrapped"
|
||
self.check_wrapped(RuntimeError(msg), msg)
|
||
|
||
def test_raise_grandchild_subclass_exact_size(self):
|
||
msg = "This should be wrapped"
|
||
class MyRuntimeError(RuntimeError):
|
||
__slots__ = ()
|
||
self.check_wrapped(MyRuntimeError(msg), msg, MyRuntimeError)
|
||
|
||
def test_raise_subclass_with_weakref_support(self):
|
||
msg = "This should be wrapped"
|
||
class MyRuntimeError(RuntimeError):
|
||
pass
|
||
self.check_wrapped(MyRuntimeError(msg), msg, MyRuntimeError)
|
||
|
||
def check_not_wrapped(self, obj_to_raise, msg):
|
||
def raise_obj(*args, **kwds):
|
||
raise obj_to_raise
|
||
self.set_codec(raise_obj, raise_obj)
|
||
with self.assertRaisesRegex(RuntimeError, msg):
|
||
"str input".encode(self.codec_name)
|
||
with self.assertRaisesRegex(RuntimeError, msg):
|
||
codecs.encode("str input", self.codec_name)
|
||
with self.assertRaisesRegex(RuntimeError, msg):
|
||
b"bytes input".decode(self.codec_name)
|
||
with self.assertRaisesRegex(RuntimeError, msg):
|
||
codecs.decode(b"bytes input", self.codec_name)
|
||
|
||
def test_init_override_is_not_wrapped(self):
|
||
class CustomInit(RuntimeError):
|
||
def __init__(self):
|
||
pass
|
||
self.check_not_wrapped(CustomInit, "")
|
||
|
||
def test_new_override_is_not_wrapped(self):
|
||
class CustomNew(RuntimeError):
|
||
def __new__(cls):
|
||
return super().__new__(cls)
|
||
self.check_not_wrapped(CustomNew, "")
|
||
|
||
def test_instance_attribute_is_not_wrapped(self):
|
||
msg = "This should NOT be wrapped"
|
||
exc = RuntimeError(msg)
|
||
exc.attr = 1
|
||
self.check_not_wrapped(exc, "^{}$".format(msg))
|
||
|
||
def test_non_str_arg_is_not_wrapped(self):
|
||
self.check_not_wrapped(RuntimeError(1), "1")
|
||
|
||
def test_multiple_args_is_not_wrapped(self):
|
||
msg_re = r"^\('a', 'b', 'c'\)$"
|
||
self.check_not_wrapped(RuntimeError('a', 'b', 'c'), msg_re)
|
||
|
||
# http://bugs.python.org/issue19609
|
||
def test_codec_lookup_failure_not_wrapped(self):
|
||
msg = "^unknown encoding: {}$".format(self.codec_name)
|
||
# The initial codec lookup should not be wrapped
|
||
with self.assertRaisesRegex(LookupError, msg):
|
||
"str input".encode(self.codec_name)
|
||
with self.assertRaisesRegex(LookupError, msg):
|
||
codecs.encode("str input", self.codec_name)
|
||
with self.assertRaisesRegex(LookupError, msg):
|
||
b"bytes input".decode(self.codec_name)
|
||
with self.assertRaisesRegex(LookupError, msg):
|
||
codecs.decode(b"bytes input", self.codec_name)
|
||
|
||
def test_unflagged_non_text_codec_handling(self):
|
||
# The stdlib non-text codecs are now marked so they're
|
||
# pre-emptively skipped by the text model related methods
|
||
# However, third party codecs won't be flagged, so we still make
|
||
# sure the case where an inappropriate output type is produced is
|
||
# handled appropriately
|
||
def encode_to_str(*args, **kwds):
|
||
return "not bytes!", 0
|
||
def decode_to_bytes(*args, **kwds):
|
||
return b"not str!", 0
|
||
self.set_codec(encode_to_str, decode_to_bytes)
|
||
# No input or output type checks on the codecs module functions
|
||
encoded = codecs.encode(None, self.codec_name)
|
||
self.assertEqual(encoded, "not bytes!")
|
||
decoded = codecs.decode(None, self.codec_name)
|
||
self.assertEqual(decoded, b"not str!")
|
||
# Text model methods should complain
|
||
fmt = (r"^{!r} encoder returned 'str' instead of 'bytes'; "
|
||
r"use codecs.encode\(\) to encode to arbitrary types$")
|
||
msg = fmt.format(self.codec_name)
|
||
with self.assertRaisesRegex(TypeError, msg):
|
||
"str_input".encode(self.codec_name)
|
||
fmt = (r"^{!r} decoder returned 'bytes' instead of 'str'; "
|
||
r"use codecs.decode\(\) to decode to arbitrary types$")
|
||
msg = fmt.format(self.codec_name)
|
||
with self.assertRaisesRegex(TypeError, msg):
|
||
b"bytes input".decode(self.codec_name)
|
||
|
||
|
||
|
||
@unittest.skipUnless(sys.platform == 'win32',
|
||
'code pages are specific to Windows')
|
||
class CodePageTest(unittest.TestCase):
|
||
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', 'strict', True)
|
||
self.assertRaisesRegex(UnicodeDecodeError, 'CP_UTF8',
|
||
codecs.code_page_decode, self.CP_UTF8, b'\xff', 'strict', True)
|
||
|
||
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, True)
|
||
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, True)
|
||
|
||
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]', 'namereplace',
|
||
b'[\\N{LATIN SMALL LETTER Y WITH DIAERESIS}]'),
|
||
('[\xff]', 'xmlcharrefreplace', b'[ÿ]'),
|
||
('\udcff', 'strict', None),
|
||
('[\udcff]', 'surrogateescape', b'[\xff]'),
|
||
('[\udcff]', 'surrogatepass', None),
|
||
))
|
||
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]', 'backslashreplace', '[\\xff]'),
|
||
(b'[\xff]', 'surrogateescape', '[\udcff]'),
|
||
(b'[\xff]', 'surrogatepass', None),
|
||
(b'\x81\x00abc', 'strict', None),
|
||
(b'\x81\x00abc', 'ignore', '\x00abc'),
|
||
(b'\x81\x00abc', 'replace', '\ufffd\x00abc'),
|
||
(b'\x81\x00abc', 'backslashreplace', '\\x81\x00abc'),
|
||
))
|
||
|
||
def test_cp1252(self):
|
||
self.check_encode(1252, (
|
||
('abc', 'strict', b'abc'),
|
||
('\xe9\u20ac', 'strict', b'\xe9\x80'),
|
||
('\xff', 'strict', b'\xff'),
|
||
# test error handlers
|
||
('\u0141', 'strict', None),
|
||
('\u0141', 'ignore', b''),
|
||
('\u0141', 'replace', b'L'),
|
||
('\udc98', 'surrogateescape', b'\x98'),
|
||
('\udc98', 'surrogatepass', None),
|
||
))
|
||
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'),
|
||
))
|
||
self.check_encode(self.CP_UTF8, (
|
||
('[\U0010ffff\uDC80]', 'ignore', b'[\xf4\x8f\xbf\xbf]'),
|
||
('[\U0010ffff\uDC80]', 'replace', b'[\xf4\x8f\xbf\xbf?]'),
|
||
))
|
||
|
||
def test_code_page_decode_flags(self):
|
||
# Issue #36312: For some code pages (e.g. UTF-7) flags for
|
||
# MultiByteToWideChar() must be set to 0.
|
||
if support.verbose:
|
||
sys.stdout.write('\n')
|
||
for cp in (50220, 50221, 50222, 50225, 50227, 50229,
|
||
*range(57002, 57011+1), 65000):
|
||
# On small versions of Windows like Windows IoT
|
||
# not all codepages are present.
|
||
# A missing codepage causes an OSError exception
|
||
# so check for the codepage before decoding
|
||
if is_code_page_present(cp):
|
||
self.assertEqual(codecs.code_page_decode(cp, b'abc'), ('abc', 3), f'cp{cp}')
|
||
else:
|
||
if support.verbose:
|
||
print(f" skipping cp={cp}")
|
||
self.assertEqual(codecs.code_page_decode(42, b'abc'),
|
||
('\uf061\uf062\uf063', 3))
|
||
|
||
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))
|
||
|
||
def test_mbcs_alias(self):
|
||
# Check that looking up our 'default' codepage will return
|
||
# mbcs when we don't have a more specific one available
|
||
with mock.patch('_winapi.GetACP', return_value=123):
|
||
codec = codecs.lookup('cp123')
|
||
self.assertEqual(codec.name, 'mbcs')
|
||
|
||
@support.bigmemtest(size=2**31, memuse=7, dry_run=False)
|
||
def test_large_input(self, size):
|
||
# Test input longer than INT_MAX.
|
||
# Input should contain undecodable bytes before and after
|
||
# the INT_MAX limit.
|
||
encoded = (b'01234567' * ((size//8)-1) +
|
||
b'\x85\x86\xea\xeb\xec\xef\xfc\xfd\xfe\xff')
|
||
self.assertEqual(len(encoded), size+2)
|
||
decoded = codecs.code_page_decode(932, encoded, 'surrogateescape', True)
|
||
self.assertEqual(decoded[1], len(encoded))
|
||
del encoded
|
||
self.assertEqual(len(decoded[0]), decoded[1])
|
||
self.assertEqual(decoded[0][:10], '0123456701')
|
||
self.assertEqual(decoded[0][-20:],
|
||
'6701234567'
|
||
'\udc85\udc86\udcea\udceb\udcec'
|
||
'\udcef\udcfc\udcfd\udcfe\udcff')
|
||
|
||
@support.bigmemtest(size=2**31, memuse=6, dry_run=False)
|
||
def test_large_utf8_input(self, size):
|
||
# Test input longer than INT_MAX.
|
||
# Input should contain a decodable multi-byte character
|
||
# surrounding INT_MAX
|
||
encoded = (b'0123456\xed\x84\x80' * (size//8))
|
||
self.assertEqual(len(encoded), size // 8 * 10)
|
||
decoded = codecs.code_page_decode(65001, encoded, 'ignore', True)
|
||
self.assertEqual(decoded[1], len(encoded))
|
||
del encoded
|
||
self.assertEqual(len(decoded[0]), size)
|
||
self.assertEqual(decoded[0][:10], '0123456\ud10001')
|
||
self.assertEqual(decoded[0][-11:], '56\ud1000123456\ud100')
|
||
|
||
|
||
class ASCIITest(unittest.TestCase):
|
||
def test_encode(self):
|
||
self.assertEqual('abc123'.encode('ascii'), b'abc123')
|
||
|
||
def test_encode_error(self):
|
||
for data, error_handler, expected in (
|
||
('[\x80\xff\u20ac]', 'ignore', b'[]'),
|
||
('[\x80\xff\u20ac]', 'replace', b'[???]'),
|
||
('[\x80\xff\u20ac]', 'xmlcharrefreplace', b'[€ÿ€]'),
|
||
('[\x80\xff\u20ac\U000abcde]', 'backslashreplace',
|
||
b'[\\x80\\xff\\u20ac\\U000abcde]'),
|
||
('[\udc80\udcff]', 'surrogateescape', b'[\x80\xff]'),
|
||
):
|
||
with self.subTest(data=data, error_handler=error_handler,
|
||
expected=expected):
|
||
self.assertEqual(data.encode('ascii', error_handler),
|
||
expected)
|
||
|
||
def test_encode_surrogateescape_error(self):
|
||
with self.assertRaises(UnicodeEncodeError):
|
||
# the first character can be decoded, but not the second
|
||
'\udc80\xff'.encode('ascii', 'surrogateescape')
|
||
|
||
def test_decode(self):
|
||
self.assertEqual(b'abc'.decode('ascii'), 'abc')
|
||
|
||
def test_decode_error(self):
|
||
for data, error_handler, expected in (
|
||
(b'[\x80\xff]', 'ignore', '[]'),
|
||
(b'[\x80\xff]', 'replace', '[\ufffd\ufffd]'),
|
||
(b'[\x80\xff]', 'surrogateescape', '[\udc80\udcff]'),
|
||
(b'[\x80\xff]', 'backslashreplace', '[\\x80\\xff]'),
|
||
):
|
||
with self.subTest(data=data, error_handler=error_handler,
|
||
expected=expected):
|
||
self.assertEqual(data.decode('ascii', error_handler),
|
||
expected)
|
||
|
||
|
||
class Latin1Test(unittest.TestCase):
|
||
def test_encode(self):
|
||
for data, expected in (
|
||
('abc', b'abc'),
|
||
('\x80\xe9\xff', b'\x80\xe9\xff'),
|
||
):
|
||
with self.subTest(data=data, expected=expected):
|
||
self.assertEqual(data.encode('latin1'), expected)
|
||
|
||
def test_encode_errors(self):
|
||
for data, error_handler, expected in (
|
||
('[\u20ac\udc80]', 'ignore', b'[]'),
|
||
('[\u20ac\udc80]', 'replace', b'[??]'),
|
||
('[\u20ac\U000abcde]', 'backslashreplace',
|
||
b'[\\u20ac\\U000abcde]'),
|
||
('[\u20ac\udc80]', 'xmlcharrefreplace', b'[€�]'),
|
||
('[\udc80\udcff]', 'surrogateescape', b'[\x80\xff]'),
|
||
):
|
||
with self.subTest(data=data, error_handler=error_handler,
|
||
expected=expected):
|
||
self.assertEqual(data.encode('latin1', error_handler),
|
||
expected)
|
||
|
||
def test_encode_surrogateescape_error(self):
|
||
with self.assertRaises(UnicodeEncodeError):
|
||
# the first character can be decoded, but not the second
|
||
'\udc80\u20ac'.encode('latin1', 'surrogateescape')
|
||
|
||
def test_decode(self):
|
||
for data, expected in (
|
||
(b'abc', 'abc'),
|
||
(b'[\x80\xff]', '[\x80\xff]'),
|
||
):
|
||
with self.subTest(data=data, expected=expected):
|
||
self.assertEqual(data.decode('latin1'), expected)
|
||
|
||
|
||
class StreamRecoderTest(unittest.TestCase):
|
||
def test_writelines(self):
|
||
bio = io.BytesIO()
|
||
codec = codecs.lookup('ascii')
|
||
sr = codecs.StreamRecoder(bio, codec.encode, codec.decode,
|
||
encodings.ascii.StreamReader, encodings.ascii.StreamWriter)
|
||
sr.writelines([b'a', b'b'])
|
||
self.assertEqual(bio.getvalue(), b'ab')
|
||
|
||
def test_write(self):
|
||
bio = io.BytesIO()
|
||
codec = codecs.lookup('latin1')
|
||
# Recode from Latin-1 to utf-8.
|
||
sr = codecs.StreamRecoder(bio, codec.encode, codec.decode,
|
||
encodings.utf_8.StreamReader, encodings.utf_8.StreamWriter)
|
||
|
||
text = 'àñé'
|
||
sr.write(text.encode('latin1'))
|
||
self.assertEqual(bio.getvalue(), text.encode('utf-8'))
|
||
|
||
def test_seeking_read(self):
|
||
bio = io.BytesIO('line1\nline2\nline3\n'.encode('utf-16-le'))
|
||
sr = codecs.EncodedFile(bio, 'utf-8', 'utf-16-le')
|
||
|
||
self.assertEqual(sr.readline(), b'line1\n')
|
||
sr.seek(0)
|
||
self.assertEqual(sr.readline(), b'line1\n')
|
||
self.assertEqual(sr.readline(), b'line2\n')
|
||
self.assertEqual(sr.readline(), b'line3\n')
|
||
self.assertEqual(sr.readline(), b'')
|
||
|
||
def test_seeking_write(self):
|
||
bio = io.BytesIO('123456789\n'.encode('utf-16-le'))
|
||
sr = codecs.EncodedFile(bio, 'utf-8', 'utf-16-le')
|
||
|
||
# Test that seek() only resets its internal buffer when offset
|
||
# and whence are zero.
|
||
sr.seek(2)
|
||
sr.write(b'\nabc\n')
|
||
self.assertEqual(sr.readline(), b'789\n')
|
||
sr.seek(0)
|
||
self.assertEqual(sr.readline(), b'1\n')
|
||
self.assertEqual(sr.readline(), b'abc\n')
|
||
self.assertEqual(sr.readline(), b'789\n')
|
||
|
||
|
||
@unittest.skipIf(_testinternalcapi is None, 'need _testinternalcapi module')
|
||
class LocaleCodecTest(unittest.TestCase):
|
||
"""
|
||
Test indirectly _Py_DecodeUTF8Ex() and _Py_EncodeUTF8Ex().
|
||
"""
|
||
ENCODING = sys.getfilesystemencoding()
|
||
STRINGS = ("ascii", "ulatin1:\xa7\xe9",
|
||
"u255:\xff",
|
||
"UCS:\xe9\u20ac\U0010ffff",
|
||
"surrogates:\uDC80\uDCFF")
|
||
BYTES_STRINGS = (b"blatin1:\xa7\xe9", b"b255:\xff")
|
||
SURROGATES = "\uDC80\uDCFF"
|
||
|
||
def encode(self, text, errors="strict"):
|
||
return _testinternalcapi.EncodeLocaleEx(text, 0, errors)
|
||
|
||
def check_encode_strings(self, errors):
|
||
for text in self.STRINGS:
|
||
with self.subTest(text=text):
|
||
try:
|
||
expected = text.encode(self.ENCODING, errors)
|
||
except UnicodeEncodeError:
|
||
with self.assertRaises(RuntimeError) as cm:
|
||
self.encode(text, errors)
|
||
errmsg = str(cm.exception)
|
||
self.assertRegex(errmsg, r"encode error: pos=[0-9]+, reason=")
|
||
else:
|
||
encoded = self.encode(text, errors)
|
||
self.assertEqual(encoded, expected)
|
||
|
||
def test_encode_strict(self):
|
||
self.check_encode_strings("strict")
|
||
|
||
def test_encode_surrogateescape(self):
|
||
self.check_encode_strings("surrogateescape")
|
||
|
||
def test_encode_surrogatepass(self):
|
||
try:
|
||
self.encode('', 'surrogatepass')
|
||
except ValueError as exc:
|
||
if str(exc) == 'unsupported error handler':
|
||
self.skipTest(f"{self.ENCODING!r} encoder doesn't support "
|
||
f"surrogatepass error handler")
|
||
else:
|
||
raise
|
||
|
||
self.check_encode_strings("surrogatepass")
|
||
|
||
def test_encode_unsupported_error_handler(self):
|
||
with self.assertRaises(ValueError) as cm:
|
||
self.encode('', 'backslashreplace')
|
||
self.assertEqual(str(cm.exception), 'unsupported error handler')
|
||
|
||
def decode(self, encoded, errors="strict"):
|
||
return _testinternalcapi.DecodeLocaleEx(encoded, 0, errors)
|
||
|
||
def check_decode_strings(self, errors):
|
||
is_utf8 = (self.ENCODING == "utf-8")
|
||
if is_utf8:
|
||
encode_errors = 'surrogateescape'
|
||
else:
|
||
encode_errors = 'strict'
|
||
|
||
strings = list(self.BYTES_STRINGS)
|
||
for text in self.STRINGS:
|
||
try:
|
||
encoded = text.encode(self.ENCODING, encode_errors)
|
||
if encoded not in strings:
|
||
strings.append(encoded)
|
||
except UnicodeEncodeError:
|
||
encoded = None
|
||
|
||
if is_utf8:
|
||
encoded2 = text.encode(self.ENCODING, 'surrogatepass')
|
||
if encoded2 != encoded:
|
||
strings.append(encoded2)
|
||
|
||
for encoded in strings:
|
||
with self.subTest(encoded=encoded):
|
||
try:
|
||
expected = encoded.decode(self.ENCODING, errors)
|
||
except UnicodeDecodeError:
|
||
with self.assertRaises(RuntimeError) as cm:
|
||
self.decode(encoded, errors)
|
||
errmsg = str(cm.exception)
|
||
self.assertTrue(errmsg.startswith("decode error: "), errmsg)
|
||
else:
|
||
decoded = self.decode(encoded, errors)
|
||
self.assertEqual(decoded, expected)
|
||
|
||
def test_decode_strict(self):
|
||
self.check_decode_strings("strict")
|
||
|
||
def test_decode_surrogateescape(self):
|
||
self.check_decode_strings("surrogateescape")
|
||
|
||
def test_decode_surrogatepass(self):
|
||
try:
|
||
self.decode(b'', 'surrogatepass')
|
||
except ValueError as exc:
|
||
if str(exc) == 'unsupported error handler':
|
||
self.skipTest(f"{self.ENCODING!r} decoder doesn't support "
|
||
f"surrogatepass error handler")
|
||
else:
|
||
raise
|
||
|
||
self.check_decode_strings("surrogatepass")
|
||
|
||
def test_decode_unsupported_error_handler(self):
|
||
with self.assertRaises(ValueError) as cm:
|
||
self.decode(b'', 'backslashreplace')
|
||
self.assertEqual(str(cm.exception), 'unsupported error handler')
|
||
|
||
|
||
class Rot13Test(unittest.TestCase):
|
||
"""Test the educational ROT-13 codec."""
|
||
def test_encode(self):
|
||
ciphertext = codecs.encode("Caesar liked ciphers", 'rot-13')
|
||
self.assertEqual(ciphertext, 'Pnrfne yvxrq pvcuref')
|
||
|
||
def test_decode(self):
|
||
plaintext = codecs.decode('Rg gh, Oehgr?', 'rot-13')
|
||
self.assertEqual(plaintext, 'Et tu, Brute?')
|
||
|
||
def test_incremental_encode(self):
|
||
encoder = codecs.getincrementalencoder('rot-13')()
|
||
ciphertext = encoder.encode('ABBA nag Cheryl Baker')
|
||
self.assertEqual(ciphertext, 'NOON ant Purely Onxre')
|
||
|
||
def test_incremental_decode(self):
|
||
decoder = codecs.getincrementaldecoder('rot-13')()
|
||
plaintext = decoder.decode('terra Ares envy tha')
|
||
self.assertEqual(plaintext, 'green Nerf rail gun')
|
||
|
||
|
||
class Rot13UtilTest(unittest.TestCase):
|
||
"""Test the ROT-13 codec via rot13 function,
|
||
i.e. the user has done something like:
|
||
$ echo "Hello World" | python -m encodings.rot_13
|
||
"""
|
||
def test_rot13_func(self):
|
||
infile = io.StringIO('Gb or, be abg gb or, gung vf gur dhrfgvba')
|
||
outfile = io.StringIO()
|
||
encodings.rot_13.rot13(infile, outfile)
|
||
outfile.seek(0)
|
||
plain_text = outfile.read()
|
||
self.assertEqual(
|
||
plain_text,
|
||
'To be, or not to be, that is the question')
|
||
|
||
|
||
class CodecNameNormalizationTest(unittest.TestCase):
|
||
"""Test codec name normalization"""
|
||
def test_codecs_lookup(self):
|
||
FOUND = (1, 2, 3, 4)
|
||
NOT_FOUND = (None, None, None, None)
|
||
def search_function(encoding):
|
||
if encoding == "aaa_8":
|
||
return FOUND
|
||
else:
|
||
return NOT_FOUND
|
||
|
||
codecs.register(search_function)
|
||
self.addCleanup(codecs.unregister, search_function)
|
||
self.assertEqual(FOUND, codecs.lookup('aaa_8'))
|
||
self.assertEqual(FOUND, codecs.lookup('AAA-8'))
|
||
self.assertEqual(FOUND, codecs.lookup('AAA---8'))
|
||
self.assertEqual(FOUND, codecs.lookup('AAA 8'))
|
||
self.assertEqual(FOUND, codecs.lookup('aaa\xe9\u20ac-8'))
|
||
self.assertEqual(NOT_FOUND, codecs.lookup('AAA.8'))
|
||
self.assertEqual(NOT_FOUND, codecs.lookup('AAA...8'))
|
||
self.assertEqual(NOT_FOUND, codecs.lookup('BBB-8'))
|
||
self.assertEqual(NOT_FOUND, codecs.lookup('BBB.8'))
|
||
self.assertEqual(NOT_FOUND, codecs.lookup('a\xe9\u20ac-8'))
|
||
|
||
def test_encodings_normalize_encoding(self):
|
||
# encodings.normalize_encoding() ignores non-ASCII characters.
|
||
normalize = encodings.normalize_encoding
|
||
self.assertEqual(normalize('utf_8'), 'utf_8')
|
||
self.assertEqual(normalize('utf\xE9\u20AC\U0010ffff-8'), 'utf_8')
|
||
self.assertEqual(normalize('utf 8'), 'utf_8')
|
||
# encodings.normalize_encoding() doesn't convert
|
||
# characters to lower case.
|
||
self.assertEqual(normalize('UTF 8'), 'UTF_8')
|
||
self.assertEqual(normalize('utf.8'), 'utf.8')
|
||
self.assertEqual(normalize('utf...8'), 'utf...8')
|
||
|
||
|
||
if __name__ == "__main__":
|
||
unittest.main()
|