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cpython/Lib/test/test_codeccallbacks.py

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import test.test_support, unittest
import sys, codecs, htmlentitydefs, 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:
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 (u"<?>", oldpos)
# A UnicodeEncodeError object with a bad start attribute
class BadStartUnicodeEncodeError(UnicodeEncodeError):
def __init__(self):
UnicodeEncodeError.__init__(self, "ascii", u"", 0, 1, "bad")
self.start = []
# A UnicodeEncodeError object with a bad object attribute
class BadObjectUnicodeEncodeError(UnicodeEncodeError):
def __init__(self):
UnicodeEncodeError.__init__(self, "ascii", u"", 0, 1, "bad")
self.object = []
# A UnicodeDecodeError object without an end attribute
class NoEndUnicodeDecodeError(UnicodeDecodeError):
def __init__(self):
UnicodeDecodeError.__init__(self, "ascii", "", 0, 1, "bad")
del self.end
# A UnicodeDecodeError object with a bad object attribute
class BadObjectUnicodeDecodeError(UnicodeDecodeError):
def __init__(self):
UnicodeDecodeError.__init__(self, "ascii", "", 0, 1, "bad")
self.object = []
# A UnicodeTranslateError object without a start attribute
class NoStartUnicodeTranslateError(UnicodeTranslateError):
def __init__(self):
UnicodeTranslateError.__init__(self, u"", 0, 1, "bad")
del self.start
# A UnicodeTranslateError object without an end attribute
class NoEndUnicodeTranslateError(UnicodeTranslateError):
def __init__(self):
UnicodeTranslateError.__init__(self, u"", 0, 1, "bad")
del self.end
# A UnicodeTranslateError object without an object attribute
class NoObjectUnicodeTranslateError(UnicodeTranslateError):
def __init__(self):
UnicodeTranslateError.__init__(self, u"", 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 = u"\u30b9\u30d1\u30e2 \xe4nd eggs"
self.assertEqual(
s.encode("ascii", "xmlcharrefreplace"),
"&#12473;&#12497;&#12514; &#228;nd eggs"
)
self.assertEqual(
s.encode("latin-1", "xmlcharrefreplace"),
"&#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(u"&%s;" % htmlentitydefs.codepoint2name[ord(c)])
except KeyError:
l.append(u"&#%d;" % ord(c))
return (u"".join(l), exc.end)
codecs.register_error(
"test.xmlcharnamereplace", xmlcharnamereplace)
sin = u"\xab\u211c\xbb = \u2329\u1234\u20ac\u232a"
sout = "&laquo;&real;&raquo; = &lang;&#4660;&euro;&rang;"
self.assertEqual(sin.encode("ascii", "test.xmlcharnamereplace"), sout)
sout = "\xab&real;\xbb = &lang;&#4660;&euro;&rang;"
self.assertEqual(sin.encode("latin-1", "test.xmlcharnamereplace"), sout)
sout = "\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,
# 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, u"0x%x" % ord(c)))
return (u"\033[1m%s\033[0m" % u", ".join(l), exc.end)
codecs.register_error(
"test.uninamereplace", uninamereplace)
sin = u"\xac\u1234\u20ac\u8000"
sout = "\033[1mNOT SIGN, ETHIOPIC SYLLABLE SEE, EURO SIGN, CJK UNIFIED IDEOGRAPH-8000\033[0m"
self.assertEqual(sin.encode("ascii", "test.uninamereplace"), sout)
sout = "\xac\033[1mETHIOPIC SYLLABLE SEE, EURO SIGN, CJK UNIFIED IDEOGRAPH-8000\033[0m"
self.assertEqual(sin.encode("latin-1", "test.uninamereplace"), sout)
sout = "\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 = u"a\xac\u1234\u20ac\u8000"
if sys.maxunicode > 0xffff:
sin += unichr(sys.maxunicode)
sout = "a\\xac\\u1234\\u20ac\\u8000"
if sys.maxunicode > 0xffff:
sout += "\\U%08x" % sys.maxunicode
self.assertEqual(sin.encode("ascii", "backslashreplace"), sout)
sout = "a\xac\\u1234\\u20ac\\u8000"
if sys.maxunicode > 0xffff:
sout += "\\U%08x" % sys.maxunicode
self.assertEqual(sin.encode("latin-1", "backslashreplace"), sout)
sout = "a\xac\\u1234\xa4\\u8000"
if sys.maxunicode > 0xffff:
sout += "\\U%08x" % sys.maxunicode
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] == "\xc0\x80":
return (u"\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"
sin = "a\x00b\xc0\x80c\xc3\xbc\xc0\x80\xc0\x80"
sout = u"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
sin = "\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), 2*c.upper()) for c in "abcdefgh"])
sin = u"abc"
sout = "AABBCC"
self.assertEqual(codecs.charmap_encode(sin, "strict", charmap)[0], sout)
sin = u"abcA"
self.assertRaises(UnicodeError, codecs.charmap_encode, sin, "strict", charmap)
charmap[ord("?")] = "XYZ"
sin = u"abcDEF"
sout = "AABBCCXYZXYZXYZ"
self.assertEqual(codecs.charmap_encode(sin, "replace", charmap)[0], sout)
charmap[ord("?")] = u"XYZ"
self.assertRaises(TypeError, codecs.charmap_encode, sin, "replace", charmap)
charmap[ord("?")] = u"XYZ"
self.assertRaises(TypeError, codecs.charmap_encode, sin, "replace", charmap)
def test_decodeunicodeinternal(self):
self.assertRaises(
UnicodeDecodeError,
"\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 (u"\x01", 1)
self.assertEqual(
"\x00\x00\x00\x00\x00".decode("unicode-internal", "ignore"),
u"\u0000"
)
self.assertEqual(
"\x00\x00\x00\x00\x00".decode("unicode-internal", "replace"),
u"\u0000\ufffd"
)
codecs.register_error("test.hui", handler_unicodeinternal)
self.assertEqual(
"\x00\x00\x00\x00\x00".decode("unicode-internal", "test.hui"),
u"\u0000\u0001\u0000"
)
def test_callbacks(self):
def handler1(exc):
if not isinstance(exc, UnicodeEncodeError) \
and not isinstance(exc, UnicodeDecodeError):
raise TypeError("don't know how to handle %r" % exc)
l = [u"<%d>" % ord(exc.object[pos]) for pos in xrange(exc.start, exc.end)]
return (u"[%s]" % u"".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)
l = [u"<%d>" % ord(exc.object[pos]) for pos in xrange(exc.start, exc.end)]
return (u"[%s]" % u"".join(l), exc.end+1) # skip one character
codecs.register_error("test.handler2", handler2)
s = "\x00\x81\x7f\x80\xff"
self.assertEqual(
s.decode("ascii", "test.handler1"),
u"\x00[<129>]\x7f[<128>][<255>]"
)
self.assertEqual(
s.decode("ascii", "test.handler2"),
u"\x00[<129>][<128>]"
)
self.assertEqual(
"\\u3042\u3xxx".decode("unicode-escape", "test.handler1"),
u"\u3042[<92><117><51>]xxx"
)
self.assertEqual(
"\\u3042\u3xx".decode("unicode-escape", "test.handler1"),
u"\u3042[<92><117><51>]xx"
)
self.assertEqual(
codecs.charmap_decode("abc", "test.handler1", {ord("a"): u"z"})[0],
u"z[<98>][<99>]"
)
self.assertEqual(
u"g\xfc\xdfrk".encode("ascii", "test.handler1"),
u"g[<252><223>]rk"
)
self.assertEqual(
u"g\xfc\xdf".encode("ascii", "test.handler1"),
u"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 (u"x", u"\u3042", u"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:
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", u"eggs", 42, 1.0, None ]
for i in xrange(len(args)):
for wrongarg in wrongargs:
if type(wrongarg) is type(args[i]):
continue
# build argument array
callargs = []
for j in xrange(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", u"g\xfcrk", 1, 2, "ouch"],
"'ascii' codec can't encode character u'\\xfc' in position 1: ouch"
)
self.check_exceptionobjectargs(
UnicodeEncodeError,
["ascii", u"g\xfcrk", 1, 4, "ouch"],
"'ascii' codec can't encode characters in position 1-3: ouch"
)
self.check_exceptionobjectargs(
UnicodeEncodeError,
["ascii", u"\xfcx", 0, 1, "ouch"],
"'ascii' codec can't encode character u'\\xfc' in position 0: ouch"
)
self.check_exceptionobjectargs(
UnicodeEncodeError,
["ascii", u"\u0100x", 0, 1, "ouch"],
"'ascii' codec can't encode character u'\\u0100' in position 0: ouch"
)
self.check_exceptionobjectargs(
UnicodeEncodeError,
["ascii", u"\uffffx", 0, 1, "ouch"],
"'ascii' codec can't encode character u'\\uffff' in position 0: ouch"
)
if sys.maxunicode > 0xffff:
self.check_exceptionobjectargs(
UnicodeEncodeError,
["ascii", u"\U00010000x", 0, 1, "ouch"],
"'ascii' codec can't encode character u'\\U00010000' in position 0: ouch"
)
def test_unicodedecodeerror(self):
self.check_exceptionobjectargs(
UnicodeDecodeError,
["ascii", "g\xfcrk", 1, 2, "ouch"],
"'ascii' codec can't decode byte 0xfc in position 1: ouch"
)
self.check_exceptionobjectargs(
UnicodeDecodeError,
["ascii", "g\xfcrk", 1, 3, "ouch"],
"'ascii' codec can't decode bytes in position 1-2: ouch"
)
def test_unicodetranslateerror(self):
self.check_exceptionobjectargs(
UnicodeTranslateError,
[u"g\xfcrk", 1, 2, "ouch"],
"can't translate character u'\\xfc' in position 1: ouch"
)
self.check_exceptionobjectargs(
UnicodeTranslateError,
[u"g\u0100rk", 1, 2, "ouch"],
"can't translate character u'\\u0100' in position 1: ouch"
)
self.check_exceptionobjectargs(
UnicodeTranslateError,
[u"g\uffffrk", 1, 2, "ouch"],
"can't translate character u'\\uffff' in position 1: ouch"
)
if sys.maxunicode > 0xffff:
self.check_exceptionobjectargs(
UnicodeTranslateError,
[u"g\U00010000rk", 1, 2, "ouch"],
"can't translate character u'\\U00010000' in position 1: ouch"
)
self.check_exceptionobjectargs(
UnicodeTranslateError,
[u"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", u"\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(
codecs.ignore_errors(UnicodeEncodeError("ascii", u"\u3042", 0, 1, "ouch")),
(u"", 1)
)
self.assertEqual(
codecs.ignore_errors(UnicodeDecodeError("ascii", "\xff", 0, 1, "ouch")),
(u"", 1)
)
self.assertEqual(
codecs.ignore_errors(UnicodeTranslateError(u"\u3042", 0, 1, "ouch")),
(u"", 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()
)
# With the correct exception, "replace" returns an "?" or u"\ufffd" replacement
self.assertEqual(
codecs.replace_errors(UnicodeEncodeError("ascii", u"\u3042", 0, 1, "ouch")),
(u"?", 1)
)
self.assertEqual(
codecs.replace_errors(UnicodeDecodeError("ascii", "\xff", 0, 1, "ouch")),
(u"\ufffd", 1)
)
self.assertEqual(
codecs.replace_errors(UnicodeTranslateError(u"\u3042", 0, 1, "ouch")),
(u"\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,
UnicodeDecodeError("ascii", "\xff", 0, 1, "ouch")
)
self.assertRaises(
TypeError,
codecs.xmlcharrefreplace_errors,
UnicodeTranslateError(u"\u3042", 0, 1, "ouch")
)
# Use the correct exception
cs = (0, 1, 9, 10, 99, 100, 999, 1000, 9999, 10000, 0x3042)
s = "".join(unichr(c) for c in cs)
self.assertEqual(
codecs.xmlcharrefreplace_errors(
UnicodeEncodeError("ascii", s, 0, len(s), "ouch")
),
(u"".join(u"&#%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,
UnicodeDecodeError("ascii", "\xff", 0, 1, "ouch")
)
self.assertRaises(
TypeError,
codecs.backslashreplace_errors,
UnicodeTranslateError(u"\u3042", 0, 1, "ouch")
)
# Use the correct exception
self.assertEqual(
codecs.backslashreplace_errors(UnicodeEncodeError("ascii", u"\u3042", 0, 1, "ouch")),
(u"\\u3042", 1)
)
self.assertEqual(
codecs.backslashreplace_errors(UnicodeEncodeError("ascii", u"\x00", 0, 1, "ouch")),
(u"\\x00", 1)
)
self.assertEqual(
codecs.backslashreplace_errors(UnicodeEncodeError("ascii", u"\xff", 0, 1, "ouch")),
(u"\\xff", 1)
)
self.assertEqual(
codecs.backslashreplace_errors(UnicodeEncodeError("ascii", u"\u0100", 0, 1, "ouch")),
(u"\\u0100", 1)
)
self.assertEqual(
codecs.backslashreplace_errors(UnicodeEncodeError("ascii", u"\uffff", 0, 1, "ouch")),
(u"\\uffff", 1)
)
if sys.maxunicode>0xffff:
self.assertEqual(
codecs.backslashreplace_errors(UnicodeEncodeError("ascii", u"\U00010000", 0, 1, "ouch")),
(u"\\U00010000", 1)
)
self.assertEqual(
codecs.backslashreplace_errors(UnicodeEncodeError("ascii", u"\U0010ffff", 0, 1, "ouch")),
(u"\\U0010ffff", 1)
)
def test_badhandlerresults(self):
results = ( 42, u"foo", (1,2,3), (u"foo", 1, 3), (u"foo", None), (u"foo",), ("foo", 1, 3), ("foo", None), ("foo",) )
encs = ("ascii", "latin-1", "iso-8859-1", "iso-8859-15")
for res in results:
codecs.register_error("test.badhandler", lambda x: res)
for enc in encs:
self.assertRaises(
TypeError,
u"\u3042".encode,
enc,
"test.badhandler"
)
for (enc, bytes) in (
("ascii", "\xff"),
("utf-8", "\xff"),
("utf-7", "+x-"),
("unicode-internal", "\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 (u"\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,
u"\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:
v += (100000, 500000, 1000000)
s = u"".join([unichr(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, "\xff".decode, "ascii", "test.unknown")
def baddecodereturn1(exc):
return 42
codecs.register_error("test.baddecodereturn1", baddecodereturn1)
self.assertRaises(TypeError, "\xff".decode, "ascii", "test.baddecodereturn1")
self.assertRaises(TypeError, "\\".decode, "unicode-escape", "test.baddecodereturn1")
self.assertRaises(TypeError, "\\x0".decode, "unicode-escape", "test.baddecodereturn1")
self.assertRaises(TypeError, "\\x0y".decode, "unicode-escape", "test.baddecodereturn1")
self.assertRaises(TypeError, "\\Uffffeeee".decode, "unicode-escape", "test.baddecodereturn1")
self.assertRaises(TypeError, "\\uyyyy".decode, "raw-unicode-escape", "test.baddecodereturn1")
def baddecodereturn2(exc):
return (u"?", None)
codecs.register_error("test.baddecodereturn2", baddecodereturn2)
self.assertRaises(TypeError, "\xff".decode, "ascii", "test.baddecodereturn2")
handler = PosReturn()
codecs.register_error("test.posreturn", handler.handle)
# Valid negative position
handler.pos = -1
self.assertEqual("\xff0".decode("ascii", "test.posreturn"), u"<?>0")
# Valid negative position
handler.pos = -2
self.assertEqual("\xff0".decode("ascii", "test.posreturn"), u"<?><?>")
# Negative position out of bounds
handler.pos = -3
self.assertRaises(IndexError, "\xff0".decode, "ascii", "test.posreturn")
# Valid positive position
handler.pos = 1
self.assertEqual("\xff0".decode("ascii", "test.posreturn"), u"<?>0")
# Largest valid positive position (one beyond end of input)
handler.pos = 2
self.assertEqual("\xff0".decode("ascii", "test.posreturn"), u"<?>")
# Invalid positive position
handler.pos = 3
self.assertRaises(IndexError, "\xff0".decode, "ascii", "test.posreturn")
# Restart at the "0"
handler.pos = 6
self.assertEqual("\\uyyyy0".decode("raw-unicode-escape", "test.posreturn"), u"<?>0")
class D(dict):
def __getitem__(self, key):
raise ValueError
self.assertRaises(UnicodeError, codecs.charmap_decode, "\xff", "strict", {0xff: None})
self.assertRaises(ValueError, codecs.charmap_decode, "\xff", "strict", D())
self.assertRaises(TypeError, codecs.charmap_decode, "\xff", "strict", {0xff: 0x110000})
def test_encodehelper(self):
# enhance coverage of:
# Objects/unicodeobject.c::unicode_encode_call_errorhandler()
# and callers
self.assertRaises(LookupError, u"\xff".encode, "ascii", "test.unknown")
def badencodereturn1(exc):
return 42
codecs.register_error("test.badencodereturn1", badencodereturn1)
self.assertRaises(TypeError, u"\xff".encode, "ascii", "test.badencodereturn1")
def badencodereturn2(exc):
return (u"?", None)
codecs.register_error("test.badencodereturn2", badencodereturn2)
self.assertRaises(TypeError, u"\xff".encode, "ascii", "test.badencodereturn2")
handler = PosReturn()
codecs.register_error("test.posreturn", handler.handle)
# Valid negative position
handler.pos = -1
self.assertEqual(u"\xff0".encode("ascii", "test.posreturn"), "<?>0")
# Valid negative position
handler.pos = -2
self.assertEqual(u"\xff0".encode("ascii", "test.posreturn"), "<?><?>")
# Negative position out of bounds
handler.pos = -3
self.assertRaises(IndexError, u"\xff0".encode, "ascii", "test.posreturn")
# Valid positive position
handler.pos = 1
self.assertEqual(u"\xff0".encode("ascii", "test.posreturn"), "<?>0")
# Largest valid positive position (one beyond end of input
handler.pos = 2
self.assertEqual(u"\xff0".encode("ascii", "test.posreturn"), "<?>")
# Invalid positive position
handler.pos = 3
self.assertRaises(IndexError, u"\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, u"\xff", err, {0xff: None})
self.assertRaises(ValueError, codecs.charmap_encode, u"\xff", err, D())
self.assertRaises(TypeError, codecs.charmap_encode, u"\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, u"\xff".translate, D())
self.assertRaises(TypeError, u"\xff".translate, {0xff: sys.maxunicode+1})
self.assertRaises(TypeError, u"\xff".translate, {0xff: ()})
def test_bug828737(self):
charmap = {
ord("&"): u"&amp;",
ord("<"): u"&lt;",
ord(">"): u"&gt;",
ord('"'): u"&quot;",
}
for n in (1, 10, 100, 1000):
text = u'abc<def>ghi'*n
text.translate(charmap)
def test_main():
test.test_support.run_unittest(CodecCallbackTest)
if __name__ == "__main__":
test_main()
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