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gh-119182: Decode PyUnicode_FromFormat() format string from UTF-8 #120248

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gh-119182: Decode PyUnicode_FromFormat() format string from UTF-8 #120248

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3d5bca4
gh-119182: Decode PyUnicode_FromFormat() format from UTF-8
vstinner Jun 7, 2024
6a87915
Update test_exceptions
vstinner Jun 7, 2024
e830944
Use strict error handler
vstinner Jun 11, 2024
242e6cb
Fix error handling
vstinner Jun 11, 2024
d04269f
Add tests on truncated UTF-8 format strings
vstinner Jun 11, 2024
94da5e7
Don't mention the strict error handler
vstinner Jun 11, 2024
89fd69a
Revert consumed parameter
vstinner Jun 11, 2024
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Update test_exceptions
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@vstinner
vstinner committed Jun 7, 2024
commit 6a879156a924df2dbe078cc95c6a3b549daf6f2b
14 changes: 10 additions & 4 deletions 14 Lib/test/test_capi/test_exceptions.py
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Original file line number Diff line number Diff line change
Expand Up @@ -264,17 +264,22 @@ def test_format(self):
PyErr_Format = getattr(pythonapi, name)
PyErr_Format.argtypes = (py_object, c_char_p,)
PyErr_Format.restype = py_object

with self.assertRaises(ZeroDivisionError) as e:
PyErr_Format(ZeroDivisionError, b'%s %d', b'error', c_int(42))
self.assertEqual(e.exception.args, ('error 42',))

with self.assertRaises(ZeroDivisionError) as e:
PyErr_Format(ZeroDivisionError, b'invalid \xff')
self.assertEqual(e.exception.args, ('invalid \ufffd',))

with self.assertRaises(ZeroDivisionError) as e:
PyErr_Format(ZeroDivisionError, b'%s', 'помилка'.encode())
self.assertEqual(e.exception.args, ('помилка',))

with self.assertRaisesRegex(OverflowError, 'not in range'):
PyErr_Format(ZeroDivisionError, b'%c', c_int(-1))
with self.assertRaisesRegex(ValueError, 'format string'):
PyErr_Format(ZeroDivisionError, b'\xff')

self.assertRaises(SystemError, PyErr_Format, list, b'error')
# CRASHES PyErr_Format(ZeroDivisionError, NULL)
# CRASHES PyErr_Format(py_object(), b'error')
Expand Down Expand Up @@ -377,7 +382,7 @@ def test_err_formatunraisable(self):
self.assertEqual(str(cm.unraisable.exc_value), 'oops!')
self.assertEqual(cm.unraisable.exc_traceback.tb_lineno,
firstline + 15)
self.assertIsNone(cm.unraisable.err_msg)
self.assertEqual(cm.unraisable.err_msg, 'undecodable \ufffd')
self.assertIsNone(cm.unraisable.object)

with support.catch_unraisable_exception() as cm:
Expand All @@ -401,7 +406,8 @@ def test_err_formatunraisable(self):
support.captured_stderr() as stderr):
formatunraisable(CustomError('oops!'), b'undecodable \xff')
lines = stderr.getvalue().splitlines()
self.assertEqual(lines[0], 'Traceback (most recent call last):')
self.assertEqual(lines[0], 'undecodable \ufffd:')
self.assertEqual(lines[1], 'Traceback (most recent call last):')
self.assertEqual(lines[-1], f'{__name__}.CustomError: oops!')

with (support.swap_attr(sys, 'unraisablehook', None),
Expand Down
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