#14492: Modular group cohomology, version 2.1.4
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Reporter: SimonKing | Owner: tbd
Type: defect | Status: needs_work
Priority: major | Milestone: sage-5.10
Component: packages: optional | Resolution:
Keywords: group cohomology | Work issues: Fix test script
Report Upstream: N/A | Reviewers:
Authors: SimonKing | Merged in:
Dependencies: | Stopgaps:
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Comment (by SimonKing):
Replying to [comment:3 vbraun]:
> I get this error with the doctests:
> {{{
> $ sage -bt local/lib/python/site-packages/pGroupCohomology/
> ...
> File "local/lib/python/site-packages/pGroupCohomology/factory.py", line
897, in
pGroupCohomology.factory.CohomologyRingFactory._get_p_group_from_cache_or_db
> Failed example:
> CohomologyRing._get_p_group_from_cache_or_db('8gp3',(8,3),
from_scratch=True)
> Expected:
> Traceback (most recent call last):
> ...
> RuntimeError: You requested a computation from scratch. Please
remove .../8gp3
> Got:
> <BLANKLINE>
> }}}
> Maybe something wrong with the temp directory? The actual functionality
seems to work, though.
Aha. So, here I check against an error that is supposed to occur in
certain settings. Hm.
I don't understand why the result is just a blank line, not the error that
is actually due in this case. The line preceding this test removes the
existing cohomology ring from memory but not from disk; and a computation
from scratch should then fail, because it does not like to find the data
in a location in which new data are supposed to be written.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14492#comment:5>
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