I like the concept, but using the profiler to grab locally declared tests is a bit more magic than I'm comfortable with in my tests. Something like this might

I like the concept, but using the profiler to grab locally declared tests is a bit more magic than I'm comfortable with in my tests. Something like this might be a good compromise: def describe_my_function(register): @register def with_this_thing(): ... I think most Python devs understand that "register" can have a side-effect.