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[3.10] gh-94808: Cover %p in PyUnicode_FromFormat (GH-96677) (#98032)

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Co-authored-by: Nikita Sobolev <mail@sobolevn.me>
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>

(cherry picked from commit 72c166add8)
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Miss Islington (bot) 2022-10-07 15:41:06 -07:00 • committed by GitHub
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commit 6f40e2fb93
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19
Lib/test/test_unicode.py
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@ -2759,6 +2759,25 @@ class CAPITest(unittest.TestCase):
check_format('repr=abc',
b'repr=%V', 'abc', b'xyz')
# test %p
# We cannot test the exact result,
# because it returns a hex representation of a C pointer,
# which is going to be different each time. But, we can test the format.
p_format_regex = r'^0x[a-zA-Z0-9]{3,}$'
p_format1 = PyUnicode_FromFormat(b'%p', 'abc')
self.assertIsInstance(p_format1, str)
self.assertRegex(p_format1, p_format_regex)
p_format2 = PyUnicode_FromFormat(b'%p %p', '123456', b'xyz')
self.assertIsInstance(p_format2, str)
self.assertRegex(p_format2,
r'0x[a-zA-Z0-9]{3,} 0x[a-zA-Z0-9]{3,}')
# Extra args are ignored:
p_format3 = PyUnicode_FromFormat(b'%p', '123456', None, b'xyz')
self.assertIsInstance(p_format3, str)
self.assertRegex(p_format3, p_format_regex)
# Test string decode from parameter of %s using utf-8.
# b'\xe4\xba\xba\xe6\xb0\x91' is utf-8 encoded byte sequence of
# '\u4eba\u6c11'