[ python-Bugs-1034242 ] More buffer object brokenness

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Bugs item #1034242, was opened at 2004-09-24 18:10
Message generated for change (Comment added) made by nascheme
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Category: Python Interpreter Core
Group: Python 2.4
>Status: Closed
>Resolution: Fixed
Priority: 5
Submitted By: James Y Knight (foom)
>Assigned to: Neil Schemenauer (nascheme)
Summary: More buffer object brokenness

Initial Comment:
Thanks for fixing the last bug so quickly.

Here's some more tests to add that currently fail with 2.4 and not 
with 2.3. Negative offsets should always be forbidden, and you 
should not be able to extend the length of a nested buffer by giving 
a longer length on the outer one.

try: buffer(buffer('asdf', 1), -1)
except ValueError: pass
else: raise TestFailed, "buffer(buffer('asdf', 1), -1) should raise 
ValueError"

if str(buffer(buffer('asdf', 0, 2), 0)) != 'as':
    raise TestFailed, 'composing length-specified buffer failed'

if str(buffer(buffer('asdf', 0, 2), 0, 5000)) != 'as':
    raise TestFailed, 'composing length-specified buffer with length 
on outer failed'

if str(buffer(buffer('asdf', 0, 2), 0, -1)) != 'as':
    raise TestFailed, 'composing length-specified buffer with -1 
length on outer failed'

if str(buffer(buffer('asdf', 0, 2), 1, 2)) != 's':
    raise TestFailed, 'composing length-specified buffer with length 
and offset on outer failed'


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>Comment By: Neil Schemenauer (nascheme)
Date: 2004-09-24 19:19

Message:
Logged In: YES 
user_id=35752

Fixed in bufferobject.c 2.26.

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