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bpo-44678: Separate error message for discontinuous padding in binascii.a2b_base64 strict mode (GH-27249)

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* Renamed assertLeadingPadding function to match logic
* Added a separate error message for discontinuous padding
* Updated the tests for discontinuous padding
This commit is contained in:
Idan Moral 2021-07-20 01:42:19 +03:00 • committed by GitHub
parent e25e43e355
commit 366fcbac18
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3 changed files with 15 additions and 8 deletions
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15
Lib/test/test_binascii.py
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@ -130,9 +130,12 @@ class BinASCIITest(unittest.TestCase):
def assertNonBase64Data(data, non_strict_mode_expected_result: bytes):
_assertRegexTemplate(r'(?i)Only base64 data', data, non_strict_mode_expected_result)
def assertMalformedPadding(data, non_strict_mode_expected_result: bytes):
def assertLeadingPadding(data, non_strict_mode_expected_result: bytes):
_assertRegexTemplate(r'(?i)Leading padding', data, non_strict_mode_expected_result)
def assertDiscontinuousPadding(data, non_strict_mode_expected_result: bytes):
_assertRegexTemplate(r'(?i)Discontinuous padding', data, non_strict_mode_expected_result)
# Test excess data exceptions
assertExcessData(b'ab==a', b'i')
assertExcessData(b'ab===', b'i')
@ -148,11 +151,11 @@ class BinASCIITest(unittest.TestCase):
assertNonBase64Data(b'a\x00b==', b'i')
# Test malformed padding
assertMalformedPadding(b'=', b'')
assertMalformedPadding(b'==', b'')
assertMalformedPadding(b'===', b'')
assertMalformedPadding(b'ab=c=', b'i\xb7')
assertMalformedPadding(b'ab=ab==', b'i\xb6\x9b')
assertLeadingPadding(b'=', b'')
assertLeadingPadding(b'==', b'')
assertLeadingPadding(b'===', b'')
assertDiscontinuousPadding(b'ab=c=', b'i\xb7')
assertDiscontinuousPadding(b'ab=ab==', b'i\xb6\x9b')
def test_base64errors(self):