[TIP] Using one unit test with different input parameters

[Jonathan Lange]

On Feb 20, 2008 10:31 AM, Ben Finney <bignose+hates-spam at benfinney.id.au> wrote:
> Robert Collins <robertc at robertcollins.net> writes:
>
> > You might like to look at bzrlib.tests.TestScenarioApplier. In
> > combination with bzrlib.tests.TestUtil.TestLoader, which extends
> > unittests TestLoader, you can very easily parameterise some tests in
> > a test script while preserving others.
> >
> > For example, in the above example of sites, you might do:
> > --test_foo.py
> > ...
> > def load_tests(standard_tests, module, loader):
> >     """Multiply tests version and protocol consistency."""
> >     applier = TestScenarioApplier()
> >     applier.scenarios = [
> >       ('wessex', {'primary': 'wessexfm.com', 'code': 'wx'}),
> >         ('example.com', {'primary': 'example.com', 'code': 'ec'}),
> >         ('example.org', {'primary': 'example.org', 'code': 'eo'}),
> >         ]
> >     # adapt everything
> >     for test in iter_suite_tests(standard_tests):
> >         result.addTests(applier.adapt(test))
> >     return result
> >
> > class TestSite(TestCase):
> >     def test_a(self):
> >         pass
> >     def test_b(self):
> >         pass
> > ---
>
> Looks interesting. How does the above code work with the extended
> TestLoader <URL:http://www.python.org/doc/lib/testloader-objects.html>
> class?
>

You have to use the bzrlib TestLoader, which inherits from the
standard library's TestLoader.

Also, I'm not sure exactly what you mean by "extended" here.

jml