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[3.13] gh-148821: Add more tests for invalid XML encodings (GH-149820) (GH-149823)

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(cherry picked from commit c6f7368157)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
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Miss Islington (bot) 2026-05-14 12:34:45 +02:00 • committed by GitHub
parent 82db654e13
commit a6ebca755c
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1 changed files with 44 additions and 4 deletions
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48
Lib/test/test_pyexpat.py
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@ -289,7 +289,7 @@ def test_parse_again(self):
'mac-roman', 'mac-turkish',
'koi8-r', 'koi8-t', 'koi8-u', 'kz1048', 'ptcp154',
])
def test_supported_ecodings(self, encoding):
def test_supported_encodings(self, encoding):
out = self.Outputter()
parser = expat.ParserCreate()
self._hookup_callbacks(parser, out)
@ -308,7 +308,7 @@ def test_supported_ecodings(self, encoding):
'UTF-8', 'utf-8', 'utf-16', 'utf-16le', 'utf-16be',
'koi8-u', 'cp1125', 'cp1251', 'iso8859-5', 'mac-cyrillic',
])
def test_supported_ecodings2(self, encoding):
def test_supported_encodings2(self, encoding):
out = self.Outputter()
parser = expat.ParserCreate()
self._hookup_callbacks(parser, out)
@ -334,14 +334,54 @@ def test_supported_ecodings2(self, encoding):
"johab",
"Shift_JIS", "Shift_JIS-2004", "Shift_JISX0213",
])
def test_unsupportes_ecodings(self, encoding):
def test_unsupported_encodings(self, encoding):
parser = expat.ParserCreate()
data = (f'<?xml version="1.0" encoding="{encoding}"?>\n'
'<root></root>').encode(encoding)
with self.assertRaises(ValueError):
parser.Parse(data, True)
def test_unknown_ecoding(self):
parser = expat.ParserCreate()
data = (f'<?xml version="1.0" encoding="{encoding}"?>\n'
'<root></root>').encode()
with self.assertRaises(ValueError):
parser.Parse(data, True)
@support.subTests('encoding', [
'cp037', 'cp273', 'cp424', 'cp500', 'cp864', 'cp875',
'cp1026', 'cp1140',
'mac_arabic', 'mac_farsi',
])
def test_incompatible_encodings(self, encoding):
parser = expat.ParserCreate()
data = (f'<?xml version="1.0" encoding="{encoding}"?>\n'
'<root></root>').encode(encoding)
with self.assertRaises(expat.ExpatError):
parser.Parse(data, True)
parser = expat.ParserCreate()
data = (f'<?xml version="1.0" encoding="{encoding}"?>\n'
'<root></root>').encode()
with self.assertRaisesRegex(expat.ExpatError, 'unknown encoding'):
parser.Parse(data, True)
@support.subTests('encoding', [
'hex_codec', 'rot_13',
])
def test_non_text_encodings(self, encoding):
parser = expat.ParserCreate()
data = (f'<?xml version="1.0" encoding="{encoding}"?>\n'
'<root></root>').encode()
with self.assertRaises(LookupError):
parser.Parse(data, True)
def test_undefined_encoding(self):
parser = expat.ParserCreate()
data = b'<?xml version="1.0" encoding="undefined"?>\n<root></root>'
with self.assertRaises(UnicodeError):
parser.Parse(data, True)
def test_unknown_encoding(self):
parser = expat.ParserCreate()
data = b'<?xml version="1.0" encoding="xyz"?>\n<root></root>'
with self.assertRaises(LookupError):