s...@pobox.com wrote:
    Dino> For IronPython we wrote a set of tests which go through and define
    Dino> the various operator methods in all sorts of combinations on both
    Dino> new-style and old-style classes as well as subclasses of those
    Dino> classes and then do the comparisons w/ logging.

It would be very nice if these complex corner cases had a set of test
cases which could be run by all implementations (CPython, Jython,
IronPython, PyPy, etc).  I don't know.  Maybe the CPython test suite serves
that purpose, but it seems like it would be helpful if this sort of
"validation suite" was maintained as a separate project all implementations
could use and contribute to.

IIRC, one of the reasons for "breaking out"[1] the standard library (and its test suite) was to allow for things like this.

Eric.

[1] For whatever definition "breaking out" ends up having.

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