No way to assign bound methods to tests

[jelmer]

(Forwarded from https://bugs.launchpad.net/testscenarios/+bug/393394)

As discussed on IRC, there is no way to assign a bound method to a test attribute.

The work around (or proper way ?) to achieve the desired effect is to use:
getattr(self, self.method_name)(args)
in the test setUp.