Same for all of these, I don't see anywhere you are modifying these values, so just referencing them from ``self.config`` from within the sub-subtests should be fine, no?

BTW: There is no  need to worry about *accidentally* modifying config. messing up another test.  The config-dict is re-generated separately every time, then thrown-away.  So any accidents would be confied to just that subtest / sub-subtest.