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Enhance the punycode decoder so that it can decode
unicode objects. Fix the idna codec and the tests.
This commit is contained in:
Walter Dörwald
parent
1f05a3b7fb
commit
0ac30f82fe
@ -7,7 +7,8 @@ from unicodedata import ucd_3_2_0 as unicodedata
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dots = re.compile("[\u002E\u3002\uFF0E\uFF61]")
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# IDNA section 5
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ace_prefix = "xn--"
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ace_prefix = b"xn--"
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sace_prefix = "xn--"
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# This assumes query strings, so AllowUnassigned is true
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def nameprep(label):
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@ -87,7 +88,7 @@ def ToASCII(label):
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raise UnicodeError("label empty or too long")
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# Step 5: Check ACE prefix
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if label.startswith(ace_prefix):
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if label.startswith(sace_prefix):
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raise UnicodeError("Label starts with ACE prefix")
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# Step 6: Encode with PUNYCODE
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@ -134,7 +135,7 @@ def ToUnicode(label):
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# Step 7: Compare the result of step 6 with the one of step 3
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# label2 will already be in lower case.
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if label.lower() != label2:
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if str(label, "ascii").lower() != str(label2, "ascii"):
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raise UnicodeError("IDNA does not round-trip", label, label2)
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# Step 8: return the result of step 5
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@ -143,7 +144,7 @@ def ToUnicode(label):
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### Codec APIs
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class Codec(codecs.Codec):
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def encode(self,input,errors='strict'):
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def encode(self, input, errors='strict'):
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if errors != 'strict':
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# IDNA is quite clear that implementations must be strict
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@ -152,19 +153,21 @@ class Codec(codecs.Codec):
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if not input:
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return b"", 0
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result = []
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result = b""
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labels = dots.split(input)
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if labels and len(labels[-1])==0:
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if labels and not labels[-1]:
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trailing_dot = b'.'
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del labels[-1]
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else:
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trailing_dot = b''
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for label in labels:
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result.append(ToASCII(label))
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# Join with U+002E
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return b".".join(result)+trailing_dot, len(input)
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if result:
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# Join with U+002E
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result.extend(b'.')
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result.extend(ToASCII(label))
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return result+trailing_dot, len(input)
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def decode(self,input,errors='strict'):
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def decode(self, input, errors='strict'):
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if errors != 'strict':
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raise UnicodeError("Unsupported error handling "+errors)
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@ -199,30 +202,31 @@ class IncrementalEncoder(codecs.BufferedIncrementalEncoder):
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raise UnicodeError("unsupported error handling "+errors)
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if not input:
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return ("", 0)
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return (b'', 0)
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labels = dots.split(input)
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trailing_dot = ''
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trailing_dot = b''
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if labels:
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if not labels[-1]:
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trailing_dot = '.'
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trailing_dot = b'.'
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del labels[-1]
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elif not final:
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# Keep potentially unfinished label until the next call
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del labels[-1]
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if labels:
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trailing_dot = '.'
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trailing_dot = b'.'
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result = []
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result = b""
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size = 0
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for label in labels:
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result.append(ToASCII(label))
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if size:
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# Join with U+002E
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result.extend(b'.')
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size += 1
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result.extend(ToASCII(label))
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size += len(label)
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# Join with U+002E
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result = ".".join(result) + trailing_dot
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result += trailing_dot
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size += len(trailing_dot)
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return (result, size)
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@ -239,8 +243,7 @@ class IncrementalDecoder(codecs.BufferedIncrementalDecoder):
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labels = dots.split(input)
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else:
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# Must be ASCII string
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input = str(input)
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str(input, "ascii")
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input = str(input, "ascii")
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labels = input.split(".")
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trailing_dot = ''
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@ -181,6 +181,8 @@ def insertion_sort(base, extended, errors):
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return base
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def punycode_decode(text, errors):
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if isinstance(text, str):
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text = text.encode("ascii")
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pos = text.rfind(b"-")
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if pos == -1:
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base = ""
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@ -194,11 +196,11 @@ def punycode_decode(text, errors):
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class Codec(codecs.Codec):
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def encode(self,input,errors='strict'):
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def encode(self, input, errors='strict'):
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res = punycode_encode(input)
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return res, len(input)
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def decode(self,input,errors='strict'):
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def decode(self, input, errors='strict'):
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if errors not in ('strict', 'replace', 'ignore'):
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raise UnicodeError, "Unsupported error handling "+errors
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res = punycode_decode(input, errors)
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@ -624,6 +624,7 @@ class PunycodeTest(unittest.TestCase):
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def test_decode(self):
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for uni, puny in punycode_testcases:
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self.assertEquals(uni, puny.decode("punycode"))
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self.assertEquals(uni, puny.decode("ascii").decode("punycode"))
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class UnicodeInternalTest(unittest.TestCase):
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def test_bug1251300(self):
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@ -676,154 +677,154 @@ class UnicodeInternalTest(unittest.TestCase):
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# From http://www.gnu.org/software/libidn/draft-josefsson-idn-test-vectors.html
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nameprep_tests = [
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# 3.1 Map to nothing.
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('foo\xc2\xad\xcd\x8f\xe1\xa0\x86\xe1\xa0\x8bbar'
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'\xe2\x80\x8b\xe2\x81\xa0baz\xef\xb8\x80\xef\xb8\x88\xef'
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'\xb8\x8f\xef\xbb\xbf',
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'foobarbaz'),
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(b'foo\xc2\xad\xcd\x8f\xe1\xa0\x86\xe1\xa0\x8bbar'
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b'\xe2\x80\x8b\xe2\x81\xa0baz\xef\xb8\x80\xef\xb8\x88\xef'
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b'\xb8\x8f\xef\xbb\xbf',
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b'foobarbaz'),
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# 3.2 Case folding ASCII U+0043 U+0041 U+0046 U+0045.
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('CAFE',
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'cafe'),
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(b'CAFE',
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b'cafe'),
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# 3.3 Case folding 8bit U+00DF (german sharp s).
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# The original test case is bogus; it says \xc3\xdf
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('\xc3\x9f',
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'ss'),
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(b'\xc3\x9f',
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b'ss'),
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# 3.4 Case folding U+0130 (turkish capital I with dot).
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('\xc4\xb0',
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'i\xcc\x87'),
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(b'\xc4\xb0',
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b'i\xcc\x87'),
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# 3.5 Case folding multibyte U+0143 U+037A.
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('\xc5\x83\xcd\xba',
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'\xc5\x84 \xce\xb9'),
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(b'\xc5\x83\xcd\xba',
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b'\xc5\x84 \xce\xb9'),
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# 3.6 Case folding U+2121 U+33C6 U+1D7BB.
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# XXX: skip this as it fails in UCS-2 mode
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#('\xe2\x84\xa1\xe3\x8f\x86\xf0\x9d\x9e\xbb',
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# 'telc\xe2\x88\x95kg\xcf\x83'),
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(None, None),
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# 3.7 Normalization of U+006a U+030c U+00A0 U+00AA.
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('j\xcc\x8c\xc2\xa0\xc2\xaa',
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'\xc7\xb0 a'),
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(b'j\xcc\x8c\xc2\xa0\xc2\xaa',
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b'\xc7\xb0 a'),
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# 3.8 Case folding U+1FB7 and normalization.
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('\xe1\xbe\xb7',
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'\xe1\xbe\xb6\xce\xb9'),
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(b'\xe1\xbe\xb7',
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b'\xe1\xbe\xb6\xce\xb9'),
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# 3.9 Self-reverting case folding U+01F0 and normalization.
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# The original test case is bogus, it says `\xc7\xf0'
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('\xc7\xb0',
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'\xc7\xb0'),
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(b'\xc7\xb0',
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b'\xc7\xb0'),
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# 3.10 Self-reverting case folding U+0390 and normalization.
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('\xce\x90',
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'\xce\x90'),
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(b'\xce\x90',
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b'\xce\x90'),
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# 3.11 Self-reverting case folding U+03B0 and normalization.
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('\xce\xb0',
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'\xce\xb0'),
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(b'\xce\xb0',
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b'\xce\xb0'),
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# 3.12 Self-reverting case folding U+1E96 and normalization.
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('\xe1\xba\x96',
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'\xe1\xba\x96'),
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(b'\xe1\xba\x96',
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b'\xe1\xba\x96'),
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# 3.13 Self-reverting case folding U+1F56 and normalization.
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('\xe1\xbd\x96',
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'\xe1\xbd\x96'),
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(b'\xe1\xbd\x96',
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b'\xe1\xbd\x96'),
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# 3.14 ASCII space character U+0020.
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(' ',
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' '),
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(b' ',
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b' '),
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# 3.15 Non-ASCII 8bit space character U+00A0.
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('\xc2\xa0',
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' '),
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(b'\xc2\xa0',
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b' '),
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# 3.16 Non-ASCII multibyte space character U+1680.
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('\xe1\x9a\x80',
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(b'\xe1\x9a\x80',
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None),
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# 3.17 Non-ASCII multibyte space character U+2000.
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('\xe2\x80\x80',
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' '),
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(b'\xe2\x80\x80',
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b' '),
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# 3.18 Zero Width Space U+200b.
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('\xe2\x80\x8b',
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''),
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(b'\xe2\x80\x8b',
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b''),
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# 3.19 Non-ASCII multibyte space character U+3000.
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('\xe3\x80\x80',
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' '),
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(b'\xe3\x80\x80',
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b' '),
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# 3.20 ASCII control characters U+0010 U+007F.
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('\x10\x7f',
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'\x10\x7f'),
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(b'\x10\x7f',
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b'\x10\x7f'),
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# 3.21 Non-ASCII 8bit control character U+0085.
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('\xc2\x85',
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(b'\xc2\x85',
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None),
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# 3.22 Non-ASCII multibyte control character U+180E.
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('\xe1\xa0\x8e',
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(b'\xe1\xa0\x8e',
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None),
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# 3.23 Zero Width No-Break Space U+FEFF.
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('\xef\xbb\xbf',
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''),
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(b'\xef\xbb\xbf',
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b''),
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# 3.24 Non-ASCII control character U+1D175.
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('\xf0\x9d\x85\xb5',
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(b'\xf0\x9d\x85\xb5',
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None),
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# 3.25 Plane 0 private use character U+F123.
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('\xef\x84\xa3',
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(b'\xef\x84\xa3',
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None),
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# 3.26 Plane 15 private use character U+F1234.
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('\xf3\xb1\x88\xb4',
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(b'\xf3\xb1\x88\xb4',
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None),
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# 3.27 Plane 16 private use character U+10F234.
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('\xf4\x8f\x88\xb4',
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(b'\xf4\x8f\x88\xb4',
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None),
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# 3.28 Non-character code point U+8FFFE.
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('\xf2\x8f\xbf\xbe',
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(b'\xf2\x8f\xbf\xbe',
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None),
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# 3.29 Non-character code point U+10FFFF.
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('\xf4\x8f\xbf\xbf',
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(b'\xf4\x8f\xbf\xbf',
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None),
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# 3.30 Surrogate code U+DF42.
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('\xed\xbd\x82',
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(b'\xed\xbd\x82',
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None),
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# 3.31 Non-plain text character U+FFFD.
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('\xef\xbf\xbd',
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(b'\xef\xbf\xbd',
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None),
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# 3.32 Ideographic description character U+2FF5.
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('\xe2\xbf\xb5',
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(b'\xe2\xbf\xb5',
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None),
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# 3.33 Display property character U+0341.
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('\xcd\x81',
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'\xcc\x81'),
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(b'\xcd\x81',
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b'\xcc\x81'),
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# 3.34 Left-to-right mark U+200E.
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('\xe2\x80\x8e',
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(b'\xe2\x80\x8e',
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None),
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# 3.35 Deprecated U+202A.
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('\xe2\x80\xaa',
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(b'\xe2\x80\xaa',
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None),
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# 3.36 Language tagging character U+E0001.
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('\xf3\xa0\x80\x81',
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(b'\xf3\xa0\x80\x81',
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None),
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# 3.37 Language tagging character U+E0042.
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('\xf3\xa0\x81\x82',
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(b'\xf3\xa0\x81\x82',
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None),
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# 3.38 Bidi: RandALCat character U+05BE and LCat characters.
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('foo\xd6\xbebar',
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(b'foo\xd6\xbebar',
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None),
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# 3.39 Bidi: RandALCat character U+FD50 and LCat characters.
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('foo\xef\xb5\x90bar',
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(b'foo\xef\xb5\x90bar',
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None),
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# 3.40 Bidi: RandALCat character U+FB38 and LCat characters.
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('foo\xef\xb9\xb6bar',
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'foo \xd9\x8ebar'),
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(b'foo\xef\xb9\xb6bar',
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b'foo \xd9\x8ebar'),
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# 3.41 Bidi: RandALCat without trailing RandALCat U+0627 U+0031.
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('\xd8\xa71',
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(b'\xd8\xa71',
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None),
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# 3.42 Bidi: RandALCat character U+0627 U+0031 U+0628.
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('\xd8\xa71\xd8\xa8',
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'\xd8\xa71\xd8\xa8'),
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(b'\xd8\xa71\xd8\xa8',
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b'\xd8\xa71\xd8\xa8'),
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# 3.43 Unassigned code point U+E0002.
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# Skip this test as we allow unassigned
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#('\xf3\xa0\x80\x82',
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#(b'\xf3\xa0\x80\x82',
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# None),
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(None, None),
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# 3.44 Larger test (shrinking).
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# Original test case reads \xc3\xdf
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('X\xc2\xad\xc3\x9f\xc4\xb0\xe2\x84\xa1j\xcc\x8c\xc2\xa0\xc2'
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'\xaa\xce\xb0\xe2\x80\x80',
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'xssi\xcc\x87tel\xc7\xb0 a\xce\xb0 '),
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(b'X\xc2\xad\xc3\x9f\xc4\xb0\xe2\x84\xa1j\xcc\x8c\xc2\xa0\xc2'
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b'\xaa\xce\xb0\xe2\x80\x80',
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b'xssi\xcc\x87tel\xc7\xb0 a\xce\xb0 '),
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# 3.45 Larger test (expanding).
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# Original test case reads \xc3\x9f
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('X\xc3\x9f\xe3\x8c\x96\xc4\xb0\xe2\x84\xa1\xe2\x92\x9f\xe3\x8c'
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'\x80',
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'xss\xe3\x82\xad\xe3\x83\xad\xe3\x83\xa1\xe3\x83\xbc\xe3'
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'\x83\x88\xe3\x83\xabi\xcc\x87tel\x28d\x29\xe3\x82'
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'\xa2\xe3\x83\x91\xe3\x83\xbc\xe3\x83\x88')
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(b'X\xc3\x9f\xe3\x8c\x96\xc4\xb0\xe2\x84\xa1\xe2\x92\x9f\xe3\x8c'
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b'\x80',
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b'xss\xe3\x82\xad\xe3\x83\xad\xe3\x83\xa1\xe3\x83\xbc\xe3'
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b'\x83\x88\xe3\x83\xabi\xcc\x87tel\x28d\x29\xe3\x82'
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b'\xa2\xe3\x83\x91\xe3\x83\xbc\xe3\x83\x88')
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]
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@ -848,16 +849,16 @@ class NameprepTest(unittest.TestCase):
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class IDNACodecTest(unittest.TestCase):
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def test_builtin_decode(self):
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self.assertEquals(str("python.org", "idna"), "python.org")
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self.assertEquals(str("python.org.", "idna"), "python.org.")
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self.assertEquals(str("xn--pythn-mua.org", "idna"), "pyth\xf6n.org")
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self.assertEquals(str("xn--pythn-mua.org.", "idna"), "pyth\xf6n.org.")
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self.assertEquals(str(b"python.org", "idna"), "python.org")
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self.assertEquals(str(b"python.org.", "idna"), "python.org.")
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self.assertEquals(str(b"xn--pythn-mua.org", "idna"), "pyth\xf6n.org")
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self.assertEquals(str(b"xn--pythn-mua.org.", "idna"), "pyth\xf6n.org.")
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def test_builtin_encode(self):
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self.assertEquals("python.org".encode("idna"), "python.org")
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self.assertEquals("python.org.".encode("idna"), "python.org.")
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self.assertEquals("pyth\xf6n.org".encode("idna"), "xn--pythn-mua.org")
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self.assertEquals("pyth\xf6n.org.".encode("idna"), "xn--pythn-mua.org.")
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self.assertEquals("python.org".encode("idna"), b"python.org")
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self.assertEquals("python.org.".encode("idna"), b"python.org.")
|
||||
self.assertEquals("pyth\xf6n.org".encode("idna"), b"xn--pythn-mua.org")
|
||||
self.assertEquals("pyth\xf6n.org.".encode("idna"), b"xn--pythn-mua.org.")
|
||||
|
||||
def test_stream(self):
|
||||
r = codecs.getreader("idna")(io.BytesIO(b"abc"))
|
||||
@ -866,61 +867,61 @@ class IDNACodecTest(unittest.TestCase):
|
||||
|
||||
def test_incremental_decode(self):
|
||||
self.assertEquals(
|
||||
"".join(codecs.iterdecode("python.org", "idna")),
|
||||
"".join(codecs.iterdecode((bytes(chr(c)) for c in b"python.org"), "idna")),
|
||||
"python.org"
|
||||
)
|
||||
self.assertEquals(
|
||||
"".join(codecs.iterdecode("python.org.", "idna")),
|
||||
"".join(codecs.iterdecode((bytes(chr(c)) for c in b"python.org."), "idna")),
|
||||
"python.org."
|
||||
)
|
||||
self.assertEquals(
|
||||
"".join(codecs.iterdecode("xn--pythn-mua.org.", "idna")),
|
||||
"".join(codecs.iterdecode((bytes(chr(c)) for c in b"xn--pythn-mua.org."), "idna")),
|
||||
"pyth\xf6n.org."
|
||||
)
|
||||
self.assertEquals(
|
||||
"".join(codecs.iterdecode("xn--pythn-mua.org.", "idna")),
|
||||
"".join(codecs.iterdecode((bytes(chr(c)) for c in b"xn--pythn-mua.org."), "idna")),
|
||||
"pyth\xf6n.org."
|
||||
)
|
||||
|
||||
decoder = codecs.getincrementaldecoder("idna")()
|
||||
self.assertEquals(decoder.decode("xn--xam", ), "")
|
||||
self.assertEquals(decoder.decode("ple-9ta.o", ), "\xe4xample.")
|
||||
self.assertEquals(decoder.decode("rg"), "")
|
||||
self.assertEquals(decoder.decode("", True), "org")
|
||||
self.assertEquals(decoder.decode(b"xn--xam", ), "")
|
||||
self.assertEquals(decoder.decode(b"ple-9ta.o", ), "\xe4xample.")
|
||||
self.assertEquals(decoder.decode(b"rg"), "")
|
||||
self.assertEquals(decoder.decode(b"", True), "org")
|
||||
|
||||
decoder.reset()
|
||||
self.assertEquals(decoder.decode("xn--xam", ), "")
|
||||
self.assertEquals(decoder.decode("ple-9ta.o", ), "\xe4xample.")
|
||||
self.assertEquals(decoder.decode("rg."), "org.")
|
||||
self.assertEquals(decoder.decode("", True), "")
|
||||
self.assertEquals(decoder.decode(b"xn--xam", ), "")
|
||||
self.assertEquals(decoder.decode(b"ple-9ta.o", ), "\xe4xample.")
|
||||
self.assertEquals(decoder.decode(b"rg."), "org.")
|
||||
self.assertEquals(decoder.decode(b"", True), "")
|
||||
|
||||
def test_incremental_encode(self):
|
||||
self.assertEquals(
|
||||
"".join(codecs.iterencode("python.org", "idna")),
|
||||
"python.org"
|
||||
b"".join(codecs.iterencode("python.org", "idna")),
|
||||
b"python.org"
|
||||
)
|
||||
self.assertEquals(
|
||||
"".join(codecs.iterencode("python.org.", "idna")),
|
||||
"python.org."
|
||||
b"".join(codecs.iterencode("python.org.", "idna")),
|
||||
b"python.org."
|
||||
)
|
||||
self.assertEquals(
|
||||
"".join(codecs.iterencode("pyth\xf6n.org.", "idna")),
|
||||
"xn--pythn-mua.org."
|
||||
b"".join(codecs.iterencode("pyth\xf6n.org.", "idna")),
|
||||
b"xn--pythn-mua.org."
|
||||
)
|
||||
self.assertEquals(
|
||||
"".join(codecs.iterencode("pyth\xf6n.org.", "idna")),
|
||||
"xn--pythn-mua.org."
|
||||
b"".join(codecs.iterencode("pyth\xf6n.org.", "idna")),
|
||||
b"xn--pythn-mua.org."
|
||||
)
|
||||
|
||||
encoder = codecs.getincrementalencoder("idna")()
|
||||
self.assertEquals(encoder.encode("\xe4x"), "")
|
||||
self.assertEquals(encoder.encode("ample.org"), "xn--xample-9ta.")
|
||||
self.assertEquals(encoder.encode("", True), "org")
|
||||
self.assertEquals(encoder.encode("\xe4x"), b"")
|
||||
self.assertEquals(encoder.encode("ample.org"), b"xn--xample-9ta.")
|
||||
self.assertEquals(encoder.encode("", True), b"org")
|
||||
|
||||
encoder.reset()
|
||||
self.assertEquals(encoder.encode("\xe4x"), "")
|
||||
self.assertEquals(encoder.encode("ample.org."), "xn--xample-9ta.org.")
|
||||
self.assertEquals(encoder.encode("", True), "")
|
||||
self.assertEquals(encoder.encode("\xe4x"), b"")
|
||||
self.assertEquals(encoder.encode("ample.org."), b"xn--xample-9ta.org.")
|
||||
self.assertEquals(encoder.encode("", True), b"")
|
||||
|
||||
class CodecsModuleTest(unittest.TestCase):
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user