[TIP] Meta-test methods...

Robert Collins robertc at robertcollins.net
Fri Apr 24 16:37:42 PDT 2009

On Fri, 2009-04-24 at 09:16 -0400, Douglas Philips wrote:
> On or about 2009 Apr 24, at 1:25 AM, Robert Collins indited:
> > At least in unittest, you can do this just by generating whatever  
> > tests
> > you want in TestSuite.__iter__.
> >
> > countTestCases clearly can't do a lot there, but that is the only  
> > method
> > in the protocol that conflicts with generation.
> True, but the point here is to create the tests in the test code  
> itself. :)

class GeneratingSomeTests(TestSuite):

    def __iter__(self):
        for _ in range(4000):
            def test():
                assert 1 == 2
            yield FunctionTestCase(test)

AIUI this is the sort of thing you mean? I realise this is spelt
slightly more verbosely than nose does - but it [clearly] is possible to
take an iterable and wrap it programatically. Personally I find tests
generated like this (nose style or as above) somewhat awkward. I'm
curious what sort of testing problems you (and Titus and ...) find
generated tests attractive for.

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