#15223: Let the `TestSuite` test that the construction of a parent returns the
parent
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Reporter: SimonKing | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-5.12
Component: coercion | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by SimonKing):
And I am to blame for a third problem, that is actually fairly similar to
the second problem mentioned above. It is in my thematic tutorial on
categories and coercion.
- I create a parent class inheriting from `UniqueRepresentation`.
- The parent class has a construction functor that keeps track of the
"important" arguments needed to reconstruct the parent.
- I create one instance P of the parent class using an additional
"unimportant" argument, namely a category.
Consequence: When trying to reconstruct P using the construction functor,
the "unimportant" argument is missing, and hence `UniqueRepresentation`
believes that a new instance needs to be created. After all, for
`UniqueRepresentation`, ''all'' arguments are important parts of the cache
key.
I have to think how to solve this.
--
Ticket URL: <http://trac.sagemath.org/ticket/15223#comment:2>
Sage <http://www.sagemath.org>
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