#15223: Let the `TestSuite` test that the construction of a parent returns the
parent
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Reporter: SimonKing | Owner:
Type: defect | Status: needs_work
Priority: major | Milestone: sage-6.1
Component: coercion | Resolution:
Keywords: construction | Merged in:
functor, test suite, sd53 | Reviewers:
Authors: Simon King | Work issues:
Report Upstream: N/A | Commit:
Branch: | cb4929aa68113ebdfe4e471a014f4621e42cdba7
u/SimonKing/ticket/15223 | Stopgaps:
Dependencies: #15229 |
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Comment (by SimonKing):
Replying to [comment:32 mmezzarobba]:
> The failures do not look deterministic. With the current state of your
branch, all tests passed when I did `sage -t integer_mod_ring.py` for the
first time. Then I tried again and repeatedly got:
> {{{
> $ sage -t src/sage/rings/finite_rings/integer_mod_ring.py
> Running doctests with ID 2013-12-28-16-42-51-6b28af73.
> Doctesting 1 file.
> sage -t src/sage/rings/finite_rings/integer_mod_ring.py
> **********************************************************************
> File "src/sage/rings/finite_rings/integer_mod_ring.py", line 729, in
sage.rings.finite_rings.integer_mod_ring.IntegerModRing_generic._pseudo_fraction_field
> Failed example:
> Integers(15).fraction_field()
> Expected:
> Traceback (most recent call last):
> ...
> TypeError: self must be an integral domain.
> Got:
> Ring of integers modulo 15
> }}}
Ahahahaha! It looks like the same example (modulus 15) was used in a
different example to demonstrate that one can erroneously claim that
`IntegerModRing(15)` is a field, and it could be that by random order of
executing the tests this false information was cached. To be on the safe
side, we could empty the cache.
> I will run the tests again after rebuilding sage from scratch.
Did you pull from #15229?
For the record: I get
{{{
sage -t src/sage/rings/residue_field.pyx # 2 doctests failed
sage -t src/sage/rings/polynomial/pbori.pyx # 1 doctest failed
sage -t src/sage/rings/finite_rings/finite_field_pari_ffelt.py # 1
doctest failed
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/15223#comment:36>
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