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gh-74678: Increase base64 test coverage (GH-21913) 

Ensure the character y is disallowed within an Ascii85 5-tuple.

Co-authored-by: Lee Cannon <leecannon@leecannon.xyz>
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Zackery Spytz 2024-01-08 03:01:31 -08:00 committed by GitHub
parent 73c9326563
commit 802d4954f1
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Lib/test/test_base64.py
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@ -586,6 +586,7 @@ class BaseXYTestCase(unittest.TestCase):
eq(base64.a85decode(b'y+<Vd', foldspaces=True, adobe=False), b' '*7)
eq(base64.a85decode(b'y+<U', foldspaces=True, adobe=False), b' '*6)
eq(base64.a85decode(b'y+9', foldspaces=True, adobe=False), b' '*5)
eq(base64.a85decode(b'aaaaay', foldspaces=True), b'\xc9\x80\x0b@ ')
self.check_other_types(base64.a85decode, b'GB\\6`E-ZP=Df.1GEb>',
b"www.python.org")
@ -689,6 +690,8 @@ class BaseXYTestCase(unittest.TestCase):
self.assertRaises(ValueError, base64.a85decode, b's8W', adobe=False)
self.assertRaises(ValueError, base64.a85decode, b's8W-', adobe=False)
self.assertRaises(ValueError, base64.a85decode, b's8W-"', adobe=False)
self.assertRaises(ValueError, base64.a85decode, b'aaaay',
foldspaces=True)
def test_b85decode_errors(self):
illegal = list(range(33)) + \