Michael Foord <[email protected]> added the comment:
It still looks weird to see code calling methods that obviously don't exist,
and with no indication *at the call site* where they come from. Making it
clearer with naming would help: "TestThingMixin" or similar.
There are classes like this in the unittest test suite, and I was very confused
by them initially until I found where and how they were used. It is obviously
*not* a pattern that is widely known for test base classes, as we have this
problem of it not being done even in the standard library tests.
In contrast I think code similar to the following would be clear and readable
without knowing about multiple inheritance and the mixin trick:
@test_base_class
class SomeTestBase(TestCase):
...
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<http://bugs.python.org/issue14408>
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