cpython/Lib/test/test_codeccallbacks.py

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import test.support, unittest
import sys, codecs, html.entities, unicodedata
class PosReturn:
# this can be used for configurable callbacks
def __init__(self):
self.pos = 0
def handle(self, exc):
oldpos = self.pos
realpos = oldpos
if realpos<0:
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realpos = len(exc.object) + realpos
# if we don't advance this time, terminate on the next call
# otherwise we'd get an endless loop
if realpos <= exc.start:
self.pos = len(exc.object)
return ("<?>", oldpos)
# A UnicodeEncodeError object with a bad start attribute
class BadStartUnicodeEncodeError(UnicodeEncodeError):
def __init__(self):
UnicodeEncodeError.__init__(self, "ascii", "", 0, 1, "bad")
self.start = []
# A UnicodeEncodeError object with a bad object attribute
class BadObjectUnicodeEncodeError(UnicodeEncodeError):
def __init__(self):
UnicodeEncodeError.__init__(self, "ascii", "", 0, 1, "bad")
self.object = []
# A UnicodeDecodeError object without an end attribute
class NoEndUnicodeDecodeError(UnicodeDecodeError):
def __init__(self):
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UnicodeDecodeError.__init__(self, "ascii", bytearray(b""), 0, 1, "bad")
del self.end
# A UnicodeDecodeError object with a bad object attribute
class BadObjectUnicodeDecodeError(UnicodeDecodeError):
def __init__(self):
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UnicodeDecodeError.__init__(self, "ascii", bytearray(b""), 0, 1, "bad")
self.object = []
# A UnicodeTranslateError object without a start attribute
class NoStartUnicodeTranslateError(UnicodeTranslateError):
def __init__(self):
UnicodeTranslateError.__init__(self, "", 0, 1, "bad")
del self.start
# A UnicodeTranslateError object without an end attribute
class NoEndUnicodeTranslateError(UnicodeTranslateError):
def __init__(self):
UnicodeTranslateError.__init__(self, "", 0, 1, "bad")
del self.end
# A UnicodeTranslateError object without an object attribute
class NoObjectUnicodeTranslateError(UnicodeTranslateError):
def __init__(self):
UnicodeTranslateError.__init__(self, "", 0, 1, "bad")
del self.object
class CodecCallbackTest(unittest.TestCase):
def test_xmlcharrefreplace(self):
# replace unencodable characters which numeric character entities.
# For ascii, latin-1 and charmaps this is completely implemented
# in C and should be reasonably fast.
s = "\u30b9\u30d1\u30e2 \xe4nd eggs"
self.assertEqual(
s.encode("ascii", "xmlcharrefreplace"),
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b"&#12473;&#12497;&#12514; &#228;nd eggs"
)
self.assertEqual(
s.encode("latin-1", "xmlcharrefreplace"),
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b"&#12473;&#12497;&#12514; \xe4nd eggs"
)
def test_xmlcharnamereplace(self):
# This time use a named character entity for unencodable
# characters, if one is available.
def xmlcharnamereplace(exc):
if not isinstance(exc, UnicodeEncodeError):
raise TypeError("don't know how to handle %r" % exc)
l = []
for c in exc.object[exc.start:exc.end]:
try:
l.append("&%s;" % html.entities.codepoint2name[ord(c)])
except KeyError:
l.append("&#%d;" % ord(c))
return ("".join(l), exc.end)
codecs.register_error(
"test.xmlcharnamereplace", xmlcharnamereplace)
sin = "\xab\u211c\xbb = \u2329\u1234\u20ac\u232a"
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sout = b"&laquo;&real;&raquo; = &lang;&#4660;&euro;&rang;"
self.assertEqual(sin.encode("ascii", "test.xmlcharnamereplace"), sout)
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sout = b"\xab&real;\xbb = &lang;&#4660;&euro;&rang;"
self.assertEqual(sin.encode("latin-1", "test.xmlcharnamereplace"), sout)
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sout = b"\xab&real;\xbb = &lang;&#4660;\xa4&rang;"
self.assertEqual(sin.encode("iso-8859-15", "test.xmlcharnamereplace"), sout)
def test_uninamereplace(self):
# We're using the names from the unicode database this time,
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# and we're doing "syntax highlighting" here, i.e. we include
# the replaced text in ANSI escape sequences. For this it is
# useful that the error handler is not called for every single
# unencodable character, but for a complete sequence of
# unencodable characters, otherwise we would output many
# unnecessary escape sequences.
def uninamereplace(exc):
if not isinstance(exc, UnicodeEncodeError):
raise TypeError("don't know how to handle %r" % exc)
l = []
for c in exc.object[exc.start:exc.end]:
l.append(unicodedata.name(c, "0x%x" % ord(c)))
return ("\033[1m%s\033[0m" % ", ".join(l), exc.end)
codecs.register_error(
"test.uninamereplace", uninamereplace)
sin = "\xac\u1234\u20ac\u8000"
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sout = b"\033[1mNOT SIGN, ETHIOPIC SYLLABLE SEE, EURO SIGN, CJK UNIFIED IDEOGRAPH-8000\033[0m"
self.assertEqual(sin.encode("ascii", "test.uninamereplace"), sout)
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sout = b"\xac\033[1mETHIOPIC SYLLABLE SEE, EURO SIGN, CJK UNIFIED IDEOGRAPH-8000\033[0m"
self.assertEqual(sin.encode("latin-1", "test.uninamereplace"), sout)
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sout = b"\xac\033[1mETHIOPIC SYLLABLE SEE\033[0m\xa4\033[1mCJK UNIFIED IDEOGRAPH-8000\033[0m"
self.assertEqual(sin.encode("iso-8859-15", "test.uninamereplace"), sout)
def test_backslashescape(self):
# Does the same as the "unicode-escape" encoding, but with different
# base encodings.
sin = "a\xac\u1234\u20ac\u8000"
if sys.maxunicode > 0xffff:
sin += chr(sys.maxunicode)
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sout = b"a\\xac\\u1234\\u20ac\\u8000"
if sys.maxunicode > 0xffff:
sout += bytes("\\U%08x" % sys.maxunicode, "ascii")
self.assertEqual(sin.encode("ascii", "backslashreplace"), sout)
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sout = b"a\xac\\u1234\\u20ac\\u8000"
if sys.maxunicode > 0xffff:
sout += bytes("\\U%08x" % sys.maxunicode, "ascii")
self.assertEqual(sin.encode("latin-1", "backslashreplace"), sout)
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sout = b"a\xac\\u1234\xa4\\u8000"
if sys.maxunicode > 0xffff:
sout += bytes("\\U%08x" % sys.maxunicode, "ascii")
self.assertEqual(sin.encode("iso-8859-15", "backslashreplace"), sout)
def test_decoding_callbacks(self):
# This is a test for a decoding callback handler
# that allows the decoding of the invalid sequence
# "\xc0\x80" and returns "\x00" instead of raising an error.
# All other illegal sequences will be handled strictly.
def relaxedutf8(exc):
if not isinstance(exc, UnicodeDecodeError):
raise TypeError("don't know how to handle %r" % exc)
if exc.object[exc.start:exc.start+2] == b"\xc0\x80":
return ("\x00", exc.start+2) # retry after two bytes
else:
raise exc
codecs.register_error("test.relaxedutf8", relaxedutf8)
# all the "\xc0\x80" will be decoded to "\x00"
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sin = b"a\x00b\xc0\x80c\xc3\xbc\xc0\x80\xc0\x80"
sout = "a\x00b\x00c\xfc\x00\x00"
self.assertEqual(sin.decode("utf-8", "test.relaxedutf8"), sout)
# "\xc0\x81" is not valid and a UnicodeDecodeError will be raised
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sin = b"\xc0\x80\xc0\x81"
self.assertRaises(UnicodeDecodeError, sin.decode,
"utf-8", "test.relaxedutf8")
def test_charmapencode(self):
# For charmap encodings the replacement string will be
# mapped through the encoding again. This means, that
# to be able to use e.g. the "replace" handler, the
# charmap has to have a mapping for "?".
charmap = dict((ord(c), bytes(2*c.upper(), 'ascii')) for c in "abcdefgh")
sin = "abc"
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sout = b"AABBCC"
self.assertEqual(codecs.charmap_encode(sin, "strict", charmap)[0], sout)
sin = "abcA"
self.assertRaises(UnicodeError, codecs.charmap_encode, sin, "strict", charmap)
charmap[ord("?")] = b"XYZ"
sin = "abcDEF"
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sout = b"AABBCCXYZXYZXYZ"
self.assertEqual(codecs.charmap_encode(sin, "replace", charmap)[0], sout)
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charmap[ord("?")] = "XYZ" # wrong type in mapping
self.assertRaises(TypeError, codecs.charmap_encode, sin, "replace", charmap)
def test_decodeunicodeinternal(self):
self.assertRaises(
UnicodeDecodeError,
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b"\x00\x00\x00\x00\x00".decode,
"unicode-internal",
)
if sys.maxunicode > 0xffff:
def handler_unicodeinternal(exc):
if not isinstance(exc, UnicodeDecodeError):
raise TypeError("don't know how to handle %r" % exc)
return ("\x01", 1)
self.assertEqual(
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b"\x00\x00\x00\x00\x00".decode("unicode-internal", "ignore"),
"\u0000"
)
self.assertEqual(
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b"\x00\x00\x00\x00\x00".decode("unicode-internal", "replace"),
"\u0000\ufffd"
)
codecs.register_error("test.hui", handler_unicodeinternal)
self.assertEqual(
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b"\x00\x00\x00\x00\x00".decode("unicode-internal", "test.hui"),
"\u0000\u0001\u0000"
)
def test_callbacks(self):
def handler1(exc):
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r = range(exc.start, exc.end)
if isinstance(exc, UnicodeEncodeError):
l = ["<%d>" % ord(exc.object[pos]) for pos in r]
elif isinstance(exc, UnicodeDecodeError):
l = ["<%d>" % exc.object[pos] for pos in r]
else:
raise TypeError("don't know how to handle %r" % exc)
return ("[%s]" % "".join(l), exc.end)
codecs.register_error("test.handler1", handler1)
def handler2(exc):
if not isinstance(exc, UnicodeDecodeError):
raise TypeError("don't know how to handle %r" % exc)
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l = ["<%d>" % exc.object[pos] for pos in range(exc.start, exc.end)]
return ("[%s]" % "".join(l), exc.end+1) # skip one character
codecs.register_error("test.handler2", handler2)
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s = b"\x00\x81\x7f\x80\xff"
self.assertEqual(
s.decode("ascii", "test.handler1"),
"\x00[<129>]\x7f[<128>][<255>]"
)
self.assertEqual(
s.decode("ascii", "test.handler2"),
"\x00[<129>][<128>]"
)
self.assertEqual(
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b"\\u3042\u3xxx".decode("unicode-escape", "test.handler1"),
"\u3042[<92><117><51><120>]xx"
)
self.assertEqual(
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b"\\u3042\u3xx".decode("unicode-escape", "test.handler1"),
"\u3042[<92><117><51><120><120>]"
)
self.assertEqual(
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codecs.charmap_decode(b"abc", "test.handler1", {ord("a"): "z"})[0],
"z[<98>][<99>]"
)
self.assertEqual(
"g\xfc\xdfrk".encode("ascii", "test.handler1"),
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b"g[<252><223>]rk"
)
self.assertEqual(
"g\xfc\xdf".encode("ascii", "test.handler1"),
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b"g[<252><223>]"
)
def test_longstrings(self):
# test long strings to check for memory overflow problems
errors = [ "strict", "ignore", "replace", "xmlcharrefreplace",
"backslashreplace"]
# register the handlers under different names,
# to prevent the codec from recognizing the name
for err in errors:
codecs.register_error("test." + err, codecs.lookup_error(err))
l = 1000
errors += [ "test." + err for err in errors ]
for uni in [ s*l for s in ("x", "\u3042", "a\xe4") ]:
for enc in ("ascii", "latin-1", "iso-8859-1", "iso-8859-15",
"utf-8", "utf-7", "utf-16", "utf-32"):
for err in errors:
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try:
uni.encode(enc, err)
except UnicodeError:
pass
def check_exceptionobjectargs(self, exctype, args, msg):
# Test UnicodeError subclasses: construction, attribute assignment and __str__ conversion
# check with one missing argument
self.assertRaises(TypeError, exctype, *args[:-1])
# check with one argument too much
self.assertRaises(TypeError, exctype, *(args + ["too much"]))
# check with one argument of the wrong type
wrongargs = [ "spam", b"eggs", b"spam", 42, 1.0, None ]
Merged revisions 55007-55179 via svnmerge from svn+ssh://pythondev@svn.python.org/python/branches/p3yk ........ r55077 | guido.van.rossum | 2007-05-02 11:54:37 -0700 (Wed, 02 May 2007) | 2 lines Use the new print syntax, at least. ........ r55142 | fred.drake | 2007-05-04 21:27:30 -0700 (Fri, 04 May 2007) | 1 line remove old cruftiness ........ r55143 | fred.drake | 2007-05-04 21:52:16 -0700 (Fri, 04 May 2007) | 1 line make this work with the new Python ........ r55162 | neal.norwitz | 2007-05-06 22:29:18 -0700 (Sun, 06 May 2007) | 1 line Get asdl code gen working with Python 2.3. Should continue to work with 3.0 ........ r55164 | neal.norwitz | 2007-05-07 00:00:38 -0700 (Mon, 07 May 2007) | 1 line Verify checkins to p3yk (sic) branch go to 3000 list. ........ r55166 | neal.norwitz | 2007-05-07 00:12:35 -0700 (Mon, 07 May 2007) | 1 line Fix this test so it runs again by importing warnings_test properly. ........ r55167 | neal.norwitz | 2007-05-07 01:03:22 -0700 (Mon, 07 May 2007) | 8 lines So long xrange. range() now supports values that are outside -sys.maxint to sys.maxint. floats raise a TypeError. This has been sitting for a long time. It probably has some problems and needs cleanup. Objects/rangeobject.c now uses 4-space indents since it is almost completely new. ........ r55171 | guido.van.rossum | 2007-05-07 10:21:26 -0700 (Mon, 07 May 2007) | 4 lines Fix two tests that were previously depending on significant spaces at the end of a line (and before that on Python 2.x print behavior that has no exact equivalent in 3.0). ........
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for i in range(len(args)):
for wrongarg in wrongargs:
if type(wrongarg) is type(args[i]):
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continue
# build argument array
callargs = []
Merged revisions 55007-55179 via svnmerge from svn+ssh://pythondev@svn.python.org/python/branches/p3yk ........ r55077 | guido.van.rossum | 2007-05-02 11:54:37 -0700 (Wed, 02 May 2007) | 2 lines Use the new print syntax, at least. ........ r55142 | fred.drake | 2007-05-04 21:27:30 -0700 (Fri, 04 May 2007) | 1 line remove old cruftiness ........ r55143 | fred.drake | 2007-05-04 21:52:16 -0700 (Fri, 04 May 2007) | 1 line make this work with the new Python ........ r55162 | neal.norwitz | 2007-05-06 22:29:18 -0700 (Sun, 06 May 2007) | 1 line Get asdl code gen working with Python 2.3. Should continue to work with 3.0 ........ r55164 | neal.norwitz | 2007-05-07 00:00:38 -0700 (Mon, 07 May 2007) | 1 line Verify checkins to p3yk (sic) branch go to 3000 list. ........ r55166 | neal.norwitz | 2007-05-07 00:12:35 -0700 (Mon, 07 May 2007) | 1 line Fix this test so it runs again by importing warnings_test properly. ........ r55167 | neal.norwitz | 2007-05-07 01:03:22 -0700 (Mon, 07 May 2007) | 8 lines So long xrange. range() now supports values that are outside -sys.maxint to sys.maxint. floats raise a TypeError. This has been sitting for a long time. It probably has some problems and needs cleanup. Objects/rangeobject.c now uses 4-space indents since it is almost completely new. ........ r55171 | guido.van.rossum | 2007-05-07 10:21:26 -0700 (Mon, 07 May 2007) | 4 lines Fix two tests that were previously depending on significant spaces at the end of a line (and before that on Python 2.x print behavior that has no exact equivalent in 3.0). ........
2007-05-07 19:24:25 -03:00
for j in range(len(args)):
if i==j:
callargs.append(wrongarg)
else:
callargs.append(args[i])
self.assertRaises(TypeError, exctype, *callargs)
# check with the correct number and type of arguments
exc = exctype(*args)
self.assertEqual(str(exc), msg)
def test_unicodeencodeerror(self):
self.check_exceptionobjectargs(
UnicodeEncodeError,
["ascii", "g\xfcrk", 1, 2, "ouch"],
"'ascii' codec can't encode character '\\xfc' in position 1: ouch"
)
self.check_exceptionobjectargs(
UnicodeEncodeError,
["ascii", "g\xfcrk", 1, 4, "ouch"],
"'ascii' codec can't encode characters in position 1-3: ouch"
)
self.check_exceptionobjectargs(
UnicodeEncodeError,
["ascii", "\xfcx", 0, 1, "ouch"],
"'ascii' codec can't encode character '\\xfc' in position 0: ouch"
)
self.check_exceptionobjectargs(
UnicodeEncodeError,
["ascii", "\u0100x", 0, 1, "ouch"],
"'ascii' codec can't encode character '\\u0100' in position 0: ouch"
)
self.check_exceptionobjectargs(
UnicodeEncodeError,
["ascii", "\uffffx", 0, 1, "ouch"],
"'ascii' codec can't encode character '\\uffff' in position 0: ouch"
)
if sys.maxunicode > 0xffff:
self.check_exceptionobjectargs(
UnicodeEncodeError,
["ascii", "\U00010000x", 0, 1, "ouch"],
"'ascii' codec can't encode character '\\U00010000' in position 0: ouch"
)
def test_unicodedecodeerror(self):
self.check_exceptionobjectargs(
UnicodeDecodeError,
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["ascii", bytearray(b"g\xfcrk"), 1, 2, "ouch"],
"'ascii' codec can't decode byte 0xfc in position 1: ouch"
)
self.check_exceptionobjectargs(
UnicodeDecodeError,
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["ascii", bytearray(b"g\xfcrk"), 1, 3, "ouch"],
"'ascii' codec can't decode bytes in position 1-2: ouch"
)
def test_unicodetranslateerror(self):
self.check_exceptionobjectargs(
UnicodeTranslateError,
["g\xfcrk", 1, 2, "ouch"],
"can't translate character '\\xfc' in position 1: ouch"
)
self.check_exceptionobjectargs(
UnicodeTranslateError,
["g\u0100rk", 1, 2, "ouch"],
"can't translate character '\\u0100' in position 1: ouch"
)
self.check_exceptionobjectargs(
UnicodeTranslateError,
["g\uffffrk", 1, 2, "ouch"],
"can't translate character '\\uffff' in position 1: ouch"
)
if sys.maxunicode > 0xffff:
self.check_exceptionobjectargs(
UnicodeTranslateError,
["g\U00010000rk", 1, 2, "ouch"],
"can't translate character '\\U00010000' in position 1: ouch"
)
self.check_exceptionobjectargs(
UnicodeTranslateError,
["g\xfcrk", 1, 3, "ouch"],
"can't translate characters in position 1-2: ouch"
)
def test_badandgoodstrictexceptions(self):
# "strict" complains about a non-exception passed in
self.assertRaises(
TypeError,
codecs.strict_errors,
42
)
# "strict" complains about the wrong exception type
self.assertRaises(
Exception,
codecs.strict_errors,
Exception("ouch")
)
# If the correct exception is passed in, "strict" raises it
self.assertRaises(
UnicodeEncodeError,
codecs.strict_errors,
UnicodeEncodeError("ascii", "\u3042", 0, 1, "ouch")
)
def test_badandgoodignoreexceptions(self):
# "ignore" complains about a non-exception passed in
self.assertRaises(
TypeError,
codecs.ignore_errors,
42
)
# "ignore" complains about the wrong exception type
self.assertRaises(
TypeError,
codecs.ignore_errors,
UnicodeError("ouch")
)
# If the correct exception is passed in, "ignore" returns an empty replacement
self.assertEqual(
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codecs.ignore_errors(
UnicodeEncodeError("ascii", "\u3042", 0, 1, "ouch")),
("", 1)
)
self.assertEqual(
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codecs.ignore_errors(
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UnicodeDecodeError("ascii", bytearray(b"\xff"), 0, 1, "ouch")),
("", 1)
)
self.assertEqual(
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codecs.ignore_errors(
UnicodeTranslateError("\u3042", 0, 1, "ouch")),
("", 1)
)
def test_badandgoodreplaceexceptions(self):
# "replace" complains about a non-exception passed in
self.assertRaises(
TypeError,
codecs.replace_errors,
42
)
# "replace" complains about the wrong exception type
self.assertRaises(
TypeError,
codecs.replace_errors,
UnicodeError("ouch")
)
self.assertRaises(
TypeError,
codecs.replace_errors,
BadObjectUnicodeEncodeError()
)
self.assertRaises(
TypeError,
codecs.replace_errors,
BadObjectUnicodeDecodeError()
)
Merged revisions 55007-55179 via svnmerge from svn+ssh://pythondev@svn.python.org/python/branches/p3yk ........ r55077 | guido.van.rossum | 2007-05-02 11:54:37 -0700 (Wed, 02 May 2007) | 2 lines Use the new print syntax, at least. ........ r55142 | fred.drake | 2007-05-04 21:27:30 -0700 (Fri, 04 May 2007) | 1 line remove old cruftiness ........ r55143 | fred.drake | 2007-05-04 21:52:16 -0700 (Fri, 04 May 2007) | 1 line make this work with the new Python ........ r55162 | neal.norwitz | 2007-05-06 22:29:18 -0700 (Sun, 06 May 2007) | 1 line Get asdl code gen working with Python 2.3. Should continue to work with 3.0 ........ r55164 | neal.norwitz | 2007-05-07 00:00:38 -0700 (Mon, 07 May 2007) | 1 line Verify checkins to p3yk (sic) branch go to 3000 list. ........ r55166 | neal.norwitz | 2007-05-07 00:12:35 -0700 (Mon, 07 May 2007) | 1 line Fix this test so it runs again by importing warnings_test properly. ........ r55167 | neal.norwitz | 2007-05-07 01:03:22 -0700 (Mon, 07 May 2007) | 8 lines So long xrange. range() now supports values that are outside -sys.maxint to sys.maxint. floats raise a TypeError. This has been sitting for a long time. It probably has some problems and needs cleanup. Objects/rangeobject.c now uses 4-space indents since it is almost completely new. ........ r55171 | guido.van.rossum | 2007-05-07 10:21:26 -0700 (Mon, 07 May 2007) | 4 lines Fix two tests that were previously depending on significant spaces at the end of a line (and before that on Python 2.x print behavior that has no exact equivalent in 3.0). ........
2007-05-07 19:24:25 -03:00
# With the correct exception, "replace" returns an "?" or "\ufffd" replacement
self.assertEqual(
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codecs.replace_errors(
UnicodeEncodeError("ascii", "\u3042", 0, 1, "ouch")),
("?", 1)
)
self.assertEqual(
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codecs.replace_errors(
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UnicodeDecodeError("ascii", bytearray(b"\xff"), 0, 1, "ouch")),
("\ufffd", 1)
)
self.assertEqual(
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codecs.replace_errors(
UnicodeTranslateError("\u3042", 0, 1, "ouch")),
("\ufffd", 1)
)
def test_badandgoodxmlcharrefreplaceexceptions(self):
# "xmlcharrefreplace" complains about a non-exception passed in
self.assertRaises(
TypeError,
codecs.xmlcharrefreplace_errors,
42
)
# "xmlcharrefreplace" complains about the wrong exception types
self.assertRaises(
TypeError,
codecs.xmlcharrefreplace_errors,
UnicodeError("ouch")
)
# "xmlcharrefreplace" can only be used for encoding
self.assertRaises(
TypeError,
codecs.xmlcharrefreplace_errors,
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UnicodeDecodeError("ascii", bytearray(b"\xff"), 0, 1, "ouch")
)
self.assertRaises(
TypeError,
codecs.xmlcharrefreplace_errors,
UnicodeTranslateError("\u3042", 0, 1, "ouch")
)
# Use the correct exception
cs = (0, 1, 9, 10, 99, 100, 999, 1000, 9999, 10000, 0x3042)
s = "".join(chr(c) for c in cs)
self.assertEqual(
codecs.xmlcharrefreplace_errors(
UnicodeEncodeError("ascii", s, 0, len(s), "ouch")
),
("".join("&#%d;" % ord(c) for c in s), len(s))
)
def test_badandgoodbackslashreplaceexceptions(self):
# "backslashreplace" complains about a non-exception passed in
self.assertRaises(
TypeError,
codecs.backslashreplace_errors,
42
)
# "backslashreplace" complains about the wrong exception types
self.assertRaises(
TypeError,
codecs.backslashreplace_errors,
UnicodeError("ouch")
)
# "backslashreplace" can only be used for encoding
self.assertRaises(
TypeError,
codecs.backslashreplace_errors,
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UnicodeDecodeError("ascii", bytearray(b"\xff"), 0, 1, "ouch")
)
self.assertRaises(
TypeError,
codecs.backslashreplace_errors,
UnicodeTranslateError("\u3042", 0, 1, "ouch")
)
# Use the correct exception
self.assertEqual(
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codecs.backslashreplace_errors(
UnicodeEncodeError("ascii", "\u3042", 0, 1, "ouch")),
("\\u3042", 1)
)
self.assertEqual(
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codecs.backslashreplace_errors(
UnicodeEncodeError("ascii", "\x00", 0, 1, "ouch")),
("\\x00", 1)
)
self.assertEqual(
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codecs.backslashreplace_errors(
UnicodeEncodeError("ascii", "\xff", 0, 1, "ouch")),
("\\xff", 1)
)
self.assertEqual(
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codecs.backslashreplace_errors(
UnicodeEncodeError("ascii", "\u0100", 0, 1, "ouch")),
("\\u0100", 1)
)
self.assertEqual(
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codecs.backslashreplace_errors(
UnicodeEncodeError("ascii", "\uffff", 0, 1, "ouch")),
("\\uffff", 1)
)
# 1 on UCS-4 builds, 2 on UCS-2
len_wide = len("\U00010000")
self.assertEqual(
codecs.backslashreplace_errors(
UnicodeEncodeError("ascii", "\U00010000",
0, len_wide, "ouch")),
("\\U00010000", len_wide)
)
self.assertEqual(
codecs.backslashreplace_errors(
UnicodeEncodeError("ascii", "\U0010ffff",
0, len_wide, "ouch")),
("\\U0010ffff", len_wide)
)
# Lone surrogates (regardless of unicode width)
self.assertEqual(
codecs.backslashreplace_errors(
UnicodeEncodeError("ascii", "\ud800", 0, 1, "ouch")),
("\\ud800", 1)
)
self.assertEqual(
codecs.backslashreplace_errors(
UnicodeEncodeError("ascii", "\udfff", 0, 1, "ouch")),
("\\udfff", 1)
)
def test_badhandlerresults(self):
results = ( 42, "foo", (1,2,3), ("foo", 1, 3), ("foo", None), ("foo",), ("foo", 1, 3), ("foo", None), ("foo",) )
encs = ("ascii", "latin-1", "iso-8859-1", "iso-8859-15")
for res in results:
Merged revisions 68633,68648,68667,68706,68718,68720-68721,68724-68727,68739 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r68633 | thomas.heller | 2009-01-16 12:53:44 -0600 (Fri, 16 Jan 2009) | 3 lines Change an example in the docs to avoid a mistake when the code is copy pasted and changed afterwards. ........ r68648 | benjamin.peterson | 2009-01-16 22:28:57 -0600 (Fri, 16 Jan 2009) | 1 line use enumerate ........ r68667 | amaury.forgeotdarc | 2009-01-17 14:18:59 -0600 (Sat, 17 Jan 2009) | 3 lines #4077: No need to append \n when calling Py_FatalError + fix a declaration to make it match the one in pythonrun.h ........ r68706 | benjamin.peterson | 2009-01-17 19:28:46 -0600 (Sat, 17 Jan 2009) | 1 line fix grammar ........ r68718 | georg.brandl | 2009-01-18 04:42:35 -0600 (Sun, 18 Jan 2009) | 1 line #4976: union() and intersection() take multiple args, but talk about "the other". ........ r68720 | georg.brandl | 2009-01-18 04:45:22 -0600 (Sun, 18 Jan 2009) | 1 line #4974: fix redundant mention of lists and tuples. ........ r68721 | georg.brandl | 2009-01-18 04:48:16 -0600 (Sun, 18 Jan 2009) | 1 line #4914: trunc is in math. ........ r68724 | georg.brandl | 2009-01-18 07:24:10 -0600 (Sun, 18 Jan 2009) | 1 line #4979: correct result range for some random functions. ........ r68725 | georg.brandl | 2009-01-18 07:47:26 -0600 (Sun, 18 Jan 2009) | 1 line #4857: fix augmented assignment target spec. ........ r68726 | georg.brandl | 2009-01-18 08:41:52 -0600 (Sun, 18 Jan 2009) | 1 line #4923: clarify what was added. ........ r68727 | georg.brandl | 2009-01-18 12:25:30 -0600 (Sun, 18 Jan 2009) | 1 line #4986: augassigns are not expressions. ........ r68739 | benjamin.peterson | 2009-01-18 15:11:38 -0600 (Sun, 18 Jan 2009) | 1 line fix test that wasn't working as expected #4990 ........
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codecs.register_error("test.badhandler", lambda x: res)
for enc in encs:
self.assertRaises(
TypeError,
"\u3042".encode,
enc,
"test.badhandler"
)
for (enc, bytes) in (
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("ascii", b"\xff"),
("utf-8", b"\xff"),
("utf-7", b"+x-"),
("unicode-internal", b"\x00"),
):
self.assertRaises(
TypeError,
bytes.decode,
enc,
"test.badhandler"
)
def test_lookup(self):
self.assertEqual(codecs.strict_errors, codecs.lookup_error("strict"))
self.assertEqual(codecs.ignore_errors, codecs.lookup_error("ignore"))
self.assertEqual(codecs.strict_errors, codecs.lookup_error("strict"))
self.assertEqual(
codecs.xmlcharrefreplace_errors,
codecs.lookup_error("xmlcharrefreplace")
)
self.assertEqual(
codecs.backslashreplace_errors,
codecs.lookup_error("backslashreplace")
)
def test_unencodablereplacement(self):
def unencrepl(exc):
if isinstance(exc, UnicodeEncodeError):
return ("\u4242", exc.end)
else:
raise TypeError("don't know how to handle %r" % exc)
codecs.register_error("test.unencreplhandler", unencrepl)
for enc in ("ascii", "iso-8859-1", "iso-8859-15"):
self.assertRaises(
UnicodeEncodeError,
"\u4242".encode,
enc,
"test.unencreplhandler"
)
def test_badregistercall(self):
# enhance coverage of:
# Modules/_codecsmodule.c::register_error()
# Python/codecs.c::PyCodec_RegisterError()
self.assertRaises(TypeError, codecs.register_error, 42)
self.assertRaises(TypeError, codecs.register_error, "test.dummy", 42)
def test_badlookupcall(self):
# enhance coverage of:
# Modules/_codecsmodule.c::lookup_error()
self.assertRaises(TypeError, codecs.lookup_error)
def test_unknownhandler(self):
# enhance coverage of:
# Modules/_codecsmodule.c::lookup_error()
self.assertRaises(LookupError, codecs.lookup_error, "test.unknown")
def test_xmlcharrefvalues(self):
# enhance coverage of:
# Python/codecs.c::PyCodec_XMLCharRefReplaceErrors()
# and inline implementations
v = (1, 5, 10, 50, 100, 500, 1000, 5000, 10000, 50000)
if sys.maxunicode>=100000:
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v += (100000, 500000, 1000000)
s = "".join([chr(x) for x in v])
codecs.register_error("test.xmlcharrefreplace", codecs.xmlcharrefreplace_errors)
for enc in ("ascii", "iso-8859-15"):
for err in ("xmlcharrefreplace", "test.xmlcharrefreplace"):
s.encode(enc, err)
def test_decodehelper(self):
# enhance coverage of:
# Objects/unicodeobject.c::unicode_decode_call_errorhandler()
# and callers
self.assertRaises(LookupError, b"\xff".decode, "ascii", "test.unknown")
def baddecodereturn1(exc):
return 42
codecs.register_error("test.baddecodereturn1", baddecodereturn1)
self.assertRaises(TypeError, b"\xff".decode, "ascii", "test.baddecodereturn1")
self.assertRaises(TypeError, b"\\".decode, "unicode-escape", "test.baddecodereturn1")
self.assertRaises(TypeError, b"\\x0".decode, "unicode-escape", "test.baddecodereturn1")
self.assertRaises(TypeError, b"\\x0y".decode, "unicode-escape", "test.baddecodereturn1")
self.assertRaises(TypeError, b"\\Uffffeeee".decode, "unicode-escape", "test.baddecodereturn1")
self.assertRaises(TypeError, b"\\uyyyy".decode, "raw-unicode-escape", "test.baddecodereturn1")
def baddecodereturn2(exc):
return ("?", None)
codecs.register_error("test.baddecodereturn2", baddecodereturn2)
self.assertRaises(TypeError, b"\xff".decode, "ascii", "test.baddecodereturn2")
handler = PosReturn()
codecs.register_error("test.posreturn", handler.handle)
# Valid negative position
handler.pos = -1
self.assertEqual(b"\xff0".decode("ascii", "test.posreturn"), "<?>0")
# Valid negative position
handler.pos = -2
self.assertEqual(b"\xff0".decode("ascii", "test.posreturn"), "<?><?>")
# Negative position out of bounds
handler.pos = -3
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self.assertRaises(IndexError, b"\xff0".decode, "ascii", "test.posreturn")
# Valid positive position
handler.pos = 1
self.assertEqual(b"\xff0".decode("ascii", "test.posreturn"), "<?>0")
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# Largest valid positive position (one beyond end of input)
handler.pos = 2
self.assertEqual(b"\xff0".decode("ascii", "test.posreturn"), "<?>")
# Invalid positive position
handler.pos = 3
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self.assertRaises(IndexError, b"\xff0".decode, "ascii", "test.posreturn")
# Restart at the "0"
handler.pos = 6
self.assertEqual(b"\\uyyyy0".decode("raw-unicode-escape", "test.posreturn"), "<?>0")
class D(dict):
def __getitem__(self, key):
raise ValueError
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self.assertRaises(UnicodeError, codecs.charmap_decode, b"\xff", "strict", {0xff: None})
self.assertRaises(ValueError, codecs.charmap_decode, b"\xff", "strict", D())
self.assertRaises(TypeError, codecs.charmap_decode, b"\xff", "strict", {0xff: sys.maxunicode+1})
def test_encodehelper(self):
# enhance coverage of:
# Objects/unicodeobject.c::unicode_encode_call_errorhandler()
# and callers
self.assertRaises(LookupError, "\xff".encode, "ascii", "test.unknown")
def badencodereturn1(exc):
return 42
codecs.register_error("test.badencodereturn1", badencodereturn1)
self.assertRaises(TypeError, "\xff".encode, "ascii", "test.badencodereturn1")
def badencodereturn2(exc):
return ("?", None)
codecs.register_error("test.badencodereturn2", badencodereturn2)
self.assertRaises(TypeError, "\xff".encode, "ascii", "test.badencodereturn2")
handler = PosReturn()
codecs.register_error("test.posreturn", handler.handle)
# Valid negative position
handler.pos = -1
self.assertEqual("\xff0".encode("ascii", "test.posreturn"), b"<?>0")
# Valid negative position
handler.pos = -2
self.assertEqual("\xff0".encode("ascii", "test.posreturn"), b"<?><?>")
# Negative position out of bounds
handler.pos = -3
self.assertRaises(IndexError, "\xff0".encode, "ascii", "test.posreturn")
# Valid positive position
handler.pos = 1
self.assertEqual("\xff0".encode("ascii", "test.posreturn"), b"<?>0")
# Largest valid positive position (one beyond end of input
handler.pos = 2
self.assertEqual("\xff0".encode("ascii", "test.posreturn"), b"<?>")
# Invalid positive position
handler.pos = 3
self.assertRaises(IndexError, "\xff0".encode, "ascii", "test.posreturn")
handler.pos = 0
class D(dict):
def __getitem__(self, key):
raise ValueError
for err in ("strict", "replace", "xmlcharrefreplace", "backslashreplace", "test.posreturn"):
self.assertRaises(UnicodeError, codecs.charmap_encode, "\xff", err, {0xff: None})
self.assertRaises(ValueError, codecs.charmap_encode, "\xff", err, D())
self.assertRaises(TypeError, codecs.charmap_encode, "\xff", err, {0xff: 300})
def test_translatehelper(self):
# enhance coverage of:
# Objects/unicodeobject.c::unicode_encode_call_errorhandler()
# and callers
# (Unfortunately the errors argument is not directly accessible
# from Python, so we can't test that much)
class D(dict):
def __getitem__(self, key):
raise ValueError
#self.assertRaises(ValueError, "\xff".translate, D())
self.assertRaises(TypeError, "\xff".translate, {0xff: sys.maxunicode+1})
self.assertRaises(TypeError, "\xff".translate, {0xff: ()})
def test_bug828737(self):
charmap = {
ord("&"): "&amp;",
ord("<"): "&lt;",
ord(">"): "&gt;",
ord('"'): "&quot;",
}
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for n in (1, 10, 100, 1000):
text = 'abc<def>ghi'*n
text.translate(charmap)
def test_mutatingdecodehandler(self):
baddata = [
("ascii", b"\xff"),
("utf-7", b"++"),
("utf-8", b"\xff"),
("utf-16", b"\xff"),
("utf-32", b"\xff"),
("unicode-escape", b"\\u123g"),
("raw-unicode-escape", b"\\u123g"),
("unicode-internal", b"\xff"),
]
def replacing(exc):
if isinstance(exc, UnicodeDecodeError):
exc.object = 42
return ("\u4242", 0)
else:
raise TypeError("don't know how to handle %r" % exc)
codecs.register_error("test.replacing", replacing)
for (encoding, data) in baddata:
self.assertRaises(TypeError, data.decode, encoding, "test.replacing")
def mutating(exc):
if isinstance(exc, UnicodeDecodeError):
exc.object[:] = b""
return ("\u4242", 0)
else:
raise TypeError("don't know how to handle %r" % exc)
codecs.register_error("test.mutating", mutating)
# If the decoder doesn't pick up the modified input the following
# will lead to an endless loop
for (encoding, data) in baddata:
self.assertRaises(TypeError, data.decode, encoding, "test.replacing")
def test_main():
test.support.run_unittest(CodecCallbackTest)
if __name__ == "__main__":
test_main()