[Python-Dev] [Python-checkins] cpython: Issue #14769: test_capi now has SkipitemTest, which cleverly checks

Fri Jun 22 20:21:25 CEST 2012

On 22/06/2012 17:39, Terry Reedy wrote:
> On 6/22/2012 6:57 AM, larry.hastings wrote:
>> http://hg.python.org/cpython/rev/ace45d23628a
>> changeset: 77567:ace45d23628a
>> user: Larry Hastings <larry at hastings.org>
>> date: Fri Jun 22 03:56:29 2012 -0700
>> summary:
>> Issue #14769: test_capi now has SkipitemTest, which cleverly checks
>> for "parity" between PyArg_ParseTuple() and the Python/getargs.c static
>> function skipitem() for all possible "format units".
>> You sensibly only test printable ascii chars, which are in the
> contiguous range 32 to 127 inclusive. So it makes no sense to claim
> otherwise and then deny the wrong claim, or to enlarge the range and
> then shrink it again.
>ASCII character 127 is a control character, not a printable character.
>> + This function brute-force tests all** ASCII characters (1 to 127
>> + inclusive) as format units, checking to see that
>There are 128 ASCII characters (0 to 127 inclusive).
> With a few exceptions**, test all printable ASCII characters (32 to 127
> inclusive) as...
>>> +
>> + ** Okay, it actually skips some ASCII characters. Some characters
>> ** Some characters ...
>> + have special funny semantics, and it would be difficult to
>> + accomodate them here.
>>> + for i in range(1, 128):
>> for i in range(32, 128):
>>>> + if (not c.isprintable()) or (c in '()e|$'):
>> if c in '()e|$':
>