484 lines
18 KiB
Python
484 lines
18 KiB
Python
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import test.test_support, unittest
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import sys, codecs, htmlentitydefs, unicodedata
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class CodecCallbackTest(unittest.TestCase):
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def test_xmlcharrefreplace(self):
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# replace unencodable characters which numeric character entities.
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# For ascii, latin-1 and charmaps this is completely implemented
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# in C and should be reasonably fast.
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s = u"\u30b9\u30d1\u30e2 \xe4nd eggs"
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self.assertEqual(
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s.encode("ascii", "xmlcharrefreplace"),
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"スパモ änd eggs"
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)
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self.assertEqual(
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s.encode("latin-1", "xmlcharrefreplace"),
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"スパモ \xe4nd eggs"
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)
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def test_xmlcharnamereplace(self):
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# This time use a named character entity for unencodable
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# characters, if one is available.
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names = {}
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for (key, value) in htmlentitydefs.entitydefs.items():
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if len(value)==1:
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names[unicode(value, "latin-1")] = unicode(key, "latin-1")
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else:
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names[unichr(int(value[2:-1]))] = unicode(key, "latin-1")
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def xmlcharnamereplace(exc):
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if not isinstance(exc, UnicodeEncodeError):
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raise TypeError("don't know how to handle %r" % exc)
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l = []
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for c in exc.object[exc.start:exc.end]:
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try:
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l.append(u"&%s;" % names[c])
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except KeyError:
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l.append(u"&#%d;" % ord(c))
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return (u"".join(l), exc.end)
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codecs.register_error(
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"test.xmlcharnamereplace", xmlcharnamereplace)
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sin = u"\xab\u211c\xbb = \u2329\u1234\u20ac\u232a"
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sout = "«ℜ» = ⟨ሴ€⟩"
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self.assertEqual(sin.encode("ascii", "test.xmlcharnamereplace"), sout)
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sout = "\xabℜ\xbb = ⟨ሴ€⟩"
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self.assertEqual(sin.encode("latin-1", "test.xmlcharnamereplace"), sout)
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sout = "\xabℜ\xbb = ⟨ሴ\xa4⟩"
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self.assertEqual(sin.encode("iso-8859-15", "test.xmlcharnamereplace"), sout)
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def test_uninamereplace(self):
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# We're using the names from the unicode database this time,
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# and we're doing "systax highlighting" here, i.e. we include
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# the replaced text in ANSI escape sequences. For this it is
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# useful that the error handler is not called for every single
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# unencodable character, but for a complete sequence of
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# unencodable characters, otherwise we would output many
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# unneccessary escape sequences.
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def uninamereplace(exc):
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if not isinstance(exc, UnicodeEncodeError):
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raise TypeError("don't know how to handle %r" % exc)
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l = []
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for c in exc.object[exc.start:exc.end]:
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l.append(unicodedata.name(c, u"0x%x" % ord(c)))
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return (u"\033[1m%s\033[0m" % u", ".join(l), exc.end)
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codecs.register_error(
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"test.uninamereplace", uninamereplace)
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sin = u"\xac\u1234\u20ac\u8000"
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sout = "\033[1mNOT SIGN, ETHIOPIC SYLLABLE SEE, EURO SIGN, 0x8000\033[0m"
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self.assertEqual(sin.encode("ascii", "test.uninamereplace"), sout)
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sout = "\xac\033[1mETHIOPIC SYLLABLE SEE, EURO SIGN, 0x8000\033[0m"
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self.assertEqual(sin.encode("latin-1", "test.uninamereplace"), sout)
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sout = "\xac\033[1mETHIOPIC SYLLABLE SEE\033[0m\xa4\033[1m0x8000\033[0m"
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self.assertEqual(sin.encode("iso-8859-15", "test.uninamereplace"), sout)
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def test_backslashescape(self):
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# Does the same as the "unicode-escape" encoding, but with different
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# base encodings.
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sin = u"a\xac\u1234\u20ac\u8000"
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if sys.maxunicode > 0xffff:
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sin += unichr(sys.maxunicode)
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sout = "a\\xac\\u1234\\u20ac\\u8000"
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if sys.maxunicode > 0xffff:
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sout += "\\U%08x" % sys.maxunicode
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self.assertEqual(sin.encode("ascii", "backslashreplace"), sout)
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sout = "a\xac\\u1234\\u20ac\\u8000"
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if sys.maxunicode > 0xffff:
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sout += "\\U%08x" % sys.maxunicode
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self.assertEqual(sin.encode("latin-1", "backslashreplace"), sout)
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sout = "a\xac\\u1234\xa4\\u8000"
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if sys.maxunicode > 0xffff:
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sout += "\\U%08x" % sys.maxunicode
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self.assertEqual(sin.encode("iso-8859-15", "backslashreplace"), sout)
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def test_relaxedutf8(self):
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# This is the test for a decoding callback handler,
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# that relaxes the UTF-8 minimal encoding restriction.
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# A null byte that is encoded as "\xc0\x80" will be
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# decoded as a null byte. All other illegal sequences
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# will be handled strictly.
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def relaxedutf8(exc):
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if not isinstance(exc, UnicodeDecodeError):
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raise TypeError("don't know how to handle %r" % exc)
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if exc.object[exc.start:exc.end].startswith("\xc0\x80"):
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return (u"\x00", exc.start+2) # retry after two bytes
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else:
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raise exc
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codecs.register_error(
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"test.relaxedutf8", relaxedutf8)
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sin = "a\x00b\xc0\x80c\xc3\xbc\xc0\x80\xc0\x80"
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sout = u"a\x00b\x00c\xfc\x00\x00"
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self.assertEqual(sin.decode("utf-8", "test.relaxedutf8"), sout)
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sin = "\xc0\x80\xc0\x81"
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self.assertRaises(UnicodeError, sin.decode, "utf-8", "test.relaxedutf8")
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def test_charmapencode(self):
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# For charmap encodings the replacement string will be
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# mapped through the encoding again. This means, that
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# to be able to use e.g. the "replace" handler, the
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# charmap has to have a mapping for "?".
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charmap = dict([ (ord(c), 2*c.upper()) for c in "abcdefgh"])
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sin = u"abc"
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sout = "AABBCC"
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self.assertEquals(codecs.charmap_encode(sin, "strict", charmap)[0], sout)
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sin = u"abcA"
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self.assertRaises(UnicodeError, codecs.charmap_encode, sin, "strict", charmap)
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charmap[ord("?")] = "XYZ"
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sin = u"abcDEF"
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sout = "AABBCCXYZXYZXYZ"
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self.assertEquals(codecs.charmap_encode(sin, "replace", charmap)[0], sout)
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charmap[ord("?")] = u"XYZ"
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self.assertRaises(TypeError, codecs.charmap_encode, sin, "replace", charmap)
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charmap[ord("?")] = u"XYZ"
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self.assertRaises(TypeError, codecs.charmap_encode, sin, "replace", charmap)
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def test_callbacks(self):
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def handler1(exc):
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if not isinstance(exc, UnicodeEncodeError) \
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and not isinstance(exc, UnicodeDecodeError):
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raise TypeError("don't know how to handle %r" % exc)
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l = [u"<%d>" % ord(exc.object[pos]) for pos in xrange(exc.start, exc.end)]
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return (u"[%s]" % u"".join(l), exc.end)
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codecs.register_error("test.handler1", handler1)
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def handler2(exc):
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if not isinstance(exc, UnicodeDecodeError):
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raise TypeError("don't know how to handle %r" % exc)
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l = [u"<%d>" % ord(exc.object[pos]) for pos in xrange(exc.start, exc.end)]
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return (u"[%s]" % u"".join(l), exc.end+1) # skip one character
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codecs.register_error("test.handler2", handler2)
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s = "\x00\x81\x7f\x80\xff"
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self.assertEqual(
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s.decode("ascii", "test.handler1"),
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u"\x00[<129>]\x7f[<128>][<255>]"
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)
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self.assertEqual(
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s.decode("ascii", "test.handler2"),
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u"\x00[<129>][<128>]"
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)
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self.assertEqual(
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"\\u3042\u3xxx".decode("unicode-escape", "test.handler1"),
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u"\u3042[<92><117><51><120>]xx"
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)
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self.assertEqual(
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"\\u3042\u3xx".decode("unicode-escape", "test.handler1"),
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u"\u3042[<92><117><51><120><120>]"
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)
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self.assertEqual(
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codecs.charmap_decode("abc", "test.handler1", {ord("a"): u"z"})[0],
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u"z[<98>][<99>]"
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)
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self.assertEqual(
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u"g\xfc\xdfrk".encode("ascii", "test.handler1"),
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u"g[<252><223>]rk"
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)
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self.assertEqual(
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u"g\xfc\xdf".encode("ascii", "test.handler1"),
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u"g[<252><223>]"
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)
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def test_longstrings(self):
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# test long strings to check for memory overflow problems
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errors = [ "strict", "ignore", "replace", "xmlcharrefreplace", "backslashreplace"]
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# register the handlers under different names,
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# to prevent the codec from recognizing the name
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for err in errors:
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codecs.register_error("test." + err, codecs.lookup_error(err))
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l = 1000
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errors += [ "test." + err for err in errors ]
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for uni in [ s*l for s in (u"x", u"\u3042", u"a\xe4") ]:
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for enc in ("ascii", "latin-1", "iso-8859-1", "iso-8859-15", "utf-8", "utf-7", "utf-16"):
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for err in errors:
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try:
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uni.encode(enc, err)
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except UnicodeError:
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pass
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def check_exceptionobjectargs(self, exctype, args, msg):
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# Test UnicodeError subclasses: construction, attribute assignment and __str__ conversion
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# check with one missing argument
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self.assertRaises(TypeError, exctype, *args[:-1])
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# check with one missing argument
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self.assertRaises(TypeError, exctype, *(args + ["too much"]))
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# check with one argument of the wrong type
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wrongargs = [ "spam", u"eggs", 42, 1.0, None ]
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for i in xrange(len(args)):
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for wrongarg in wrongargs:
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if type(wrongarg) is type(args[i]):
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continue
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# build argument array
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callargs = []
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for j in xrange(len(args)):
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if i==j:
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callargs.append(wrongarg)
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else:
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callargs.append(args[i])
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self.assertRaises(TypeError, exctype, *callargs)
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exc = exctype(*args)
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self.assertEquals(str(exc), msg)
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def test_unicodeencodeerror(self):
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self.check_exceptionobjectargs(
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UnicodeEncodeError,
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["ascii", u"g\xfcrk", 1, 2, "ouch"],
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"'ascii' codec can't encode character '\ufc' in position 1: ouch"
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)
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self.check_exceptionobjectargs(
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UnicodeEncodeError,
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["ascii", u"g\xfcrk", 1, 4, "ouch"],
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"'ascii' codec can't encode characters in position 1-3: ouch"
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)
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self.check_exceptionobjectargs(
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UnicodeEncodeError,
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["ascii", u"\xfcx", 0, 1, "ouch"],
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"'ascii' codec can't encode character '\ufc' in position 0: ouch"
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)
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def test_unicodedecodeerror(self):
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self.check_exceptionobjectargs(
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UnicodeDecodeError,
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["ascii", "g\xfcrk", 1, 2, "ouch"],
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"'ascii' codec can't decode byte 0xfc in position 1: ouch"
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)
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self.check_exceptionobjectargs(
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UnicodeDecodeError,
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["ascii", "g\xfcrk", 1, 3, "ouch"],
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"'ascii' codec can't decode bytes in position 1-2: ouch"
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)
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def test_unicodetranslateerror(self):
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self.check_exceptionobjectargs(
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UnicodeTranslateError,
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[u"g\xfcrk", 1, 2, "ouch"],
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"can't translate character '\\ufc' in position 1: ouch"
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)
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self.check_exceptionobjectargs(
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UnicodeTranslateError,
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[u"g\xfcrk", 1, 3, "ouch"],
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"can't translate characters in position 1-2: ouch"
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)
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def test_badandgoodstrictexceptions(self):
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self.assertRaises(
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TypeError,
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codecs.strict_errors,
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42
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)
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self.assertRaises(
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Exception,
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codecs.strict_errors,
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Exception("ouch")
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)
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self.assertRaises(
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UnicodeEncodeError,
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codecs.strict_errors,
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UnicodeEncodeError("ascii", u"\u3042", 0, 1, "ouch")
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)
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def test_badandgoodignoreexceptions(self):
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self.assertRaises(
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TypeError,
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codecs.ignore_errors,
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42
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)
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self.assertRaises(
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TypeError,
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codecs.ignore_errors,
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UnicodeError("ouch")
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)
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self.assertEquals(
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codecs.ignore_errors(UnicodeEncodeError("ascii", u"\u3042", 0, 1, "ouch")),
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(u"", 1)
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)
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self.assertEquals(
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codecs.ignore_errors(UnicodeDecodeError("ascii", "\xff", 0, 1, "ouch")),
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(u"", 1)
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)
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self.assertEquals(
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codecs.ignore_errors(UnicodeTranslateError(u"\u3042", 0, 1, "ouch")),
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(u"", 1)
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)
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def test_badandgoodreplaceexceptions(self):
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self.assertRaises(
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TypeError,
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codecs.replace_errors,
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42
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)
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self.assertRaises(
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TypeError,
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codecs.replace_errors,
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UnicodeError("ouch")
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)
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self.assertEquals(
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codecs.replace_errors(UnicodeEncodeError("ascii", u"\u3042", 0, 1, "ouch")),
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(u"?", 1)
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)
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self.assertEquals(
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|
|
codecs.replace_errors(UnicodeDecodeError("ascii", "\xff", 0, 1, "ouch")),
|
||
|
|
(u"\ufffd", 1)
|
||
|
|
)
|
||
|
|
self.assertEquals(
|
||
|
|
codecs.replace_errors(UnicodeTranslateError(u"\u3042", 0, 1, "ouch")),
|
||
|
|
(u"\ufffd", 1)
|
||
|
|
)
|
||
|
|
|
||
|
|
def test_badandgoodxmlcharrefreplaceexceptions(self):
|
||
|
|
self.assertRaises(
|
||
|
|
TypeError,
|
||
|
|
codecs.xmlcharrefreplace_errors,
|
||
|
|
42
|
||
|
|
)
|
||
|
|
self.assertRaises(
|
||
|
|
TypeError,
|
||
|
|
codecs.xmlcharrefreplace_errors,
|
||
|
|
UnicodeError("ouch")
|
||
|
|
)
|
||
|
|
self.assertEquals(
|
||
|
|
codecs.xmlcharrefreplace_errors(UnicodeEncodeError("ascii", u"\u3042", 0, 1, "ouch")),
|
||
|
|
(u"&#%d;" % 0x3042, 1)
|
||
|
|
)
|
||
|
|
self.assertRaises(
|
||
|
|
TypeError,
|
||
|
|
codecs.xmlcharrefreplace_errors,
|
||
|
|
UnicodeError("ouch")
|
||
|
|
)
|
||
|
|
self.assertRaises(
|
||
|
|
TypeError,
|
||
|
|
codecs.xmlcharrefreplace_errors,
|
||
|
|
UnicodeDecodeError("ascii", "\xff", 0, 1, "ouch")
|
||
|
|
)
|
||
|
|
self.assertRaises(
|
||
|
|
TypeError,
|
||
|
|
codecs.xmlcharrefreplace_errors,
|
||
|
|
UnicodeTranslateError(u"\u3042", 0, 1, "ouch")
|
||
|
|
)
|
||
|
|
|
||
|
|
def test_badandgoodbackslashreplaceexceptions(self):
|
||
|
|
self.assertRaises(
|
||
|
|
TypeError,
|
||
|
|
codecs.backslashreplace_errors,
|
||
|
|
42
|
||
|
|
)
|
||
|
|
self.assertRaises(
|
||
|
|
TypeError,
|
||
|
|
codecs.backslashreplace_errors,
|
||
|
|
UnicodeError("ouch")
|
||
|
|
)
|
||
|
|
self.assertEquals(
|
||
|
|
codecs.backslashreplace_errors(UnicodeEncodeError("ascii", u"\u3042", 0, 1, "ouch")),
|
||
|
|
(u"\\u3042", 1)
|
||
|
|
)
|
||
|
|
self.assertEquals(
|
||
|
|
codecs.backslashreplace_errors(UnicodeEncodeError("ascii", u"\x00", 0, 1, "ouch")),
|
||
|
|
(u"\\x00", 1)
|
||
|
|
)
|
||
|
|
self.assertEquals(
|
||
|
|
codecs.backslashreplace_errors(UnicodeEncodeError("ascii", u"\xff", 0, 1, "ouch")),
|
||
|
|
(u"\\xff", 1)
|
||
|
|
)
|
||
|
|
self.assertEquals(
|
||
|
|
codecs.backslashreplace_errors(UnicodeEncodeError("ascii", u"\u0100", 0, 1, "ouch")),
|
||
|
|
(u"\\u0100", 1)
|
||
|
|
)
|
||
|
|
self.assertEquals(
|
||
|
|
codecs.backslashreplace_errors(UnicodeEncodeError("ascii", u"\uffff", 0, 1, "ouch")),
|
||
|
|
(u"\\uffff", 1)
|
||
|
|
)
|
||
|
|
if sys.maxunicode>0xffff:
|
||
|
|
self.assertEquals(
|
||
|
|
codecs.backslashreplace_errors(UnicodeEncodeError("ascii", u"\U00010000", 0, 1, "ouch")),
|
||
|
|
(u"\\U00010000", 1)
|
||
|
|
)
|
||
|
|
self.assertEquals(
|
||
|
|
codecs.backslashreplace_errors(UnicodeEncodeError("ascii", u"\U0010ffff", 0, 1, "ouch")),
|
||
|
|
(u"\\U0010ffff", 1)
|
||
|
|
)
|
||
|
|
|
||
|
|
self.assertRaises(
|
||
|
|
TypeError,
|
||
|
|
codecs.backslashreplace_errors,
|
||
|
|
UnicodeError("ouch")
|
||
|
|
)
|
||
|
|
self.assertRaises(
|
||
|
|
TypeError,
|
||
|
|
codecs.backslashreplace_errors,
|
||
|
|
UnicodeDecodeError("ascii", "\xff", 0, 1, "ouch")
|
||
|
|
)
|
||
|
|
self.assertRaises(
|
||
|
|
TypeError,
|
||
|
|
codecs.backslashreplace_errors,
|
||
|
|
UnicodeTranslateError(u"\u3042", 0, 1, "ouch")
|
||
|
|
)
|
||
|
|
|
||
|
|
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: 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-")
|
||
|
|
):
|
||
|
|
self.assertRaises(
|
||
|
|
TypeError,
|
||
|
|
bytes.decode,
|
||
|
|
enc,
|
||
|
|
"test.badhandler"
|
||
|
|
)
|
||
|
|
|
||
|
|
def test_lookup(self):
|
||
|
|
self.assertEquals(codecs.strict_errors, codecs.lookup_error("strict"))
|
||
|
|
self.assertEquals(codecs.ignore_errors, codecs.lookup_error("ignore"))
|
||
|
|
self.assertEquals(codecs.strict_errors, codecs.lookup_error("strict"))
|
||
|
|
self.assertEquals(
|
||
|
|
codecs.xmlcharrefreplace_errors,
|
||
|
|
codecs.lookup_error("xmlcharrefreplace")
|
||
|
|
)
|
||
|
|
self.assertEquals(
|
||
|
|
codecs.backslashreplace_errors,
|
||
|
|
codecs.lookup_error("backslashreplace")
|
||
|
|
)
|
||
|
|
|
||
|
|
def test_main():
|
||
|
|
suite = unittest.TestSuite()
|
||
|
|
suite.addTest(unittest.makeSuite(CodecCallbackTest))
|
||
|
|
test.test_support.run_suite(suite)
|
||
|
|
|
||
|
|
if __name__ == "__main__":
|
||
|
|
test_main()
|