pydata/pandas — pull request #8479 by TomAugspurger (2014-10-06 02:31:53+00:00)
Title: TST: Speedup some slow plotting tests

Chipping away at https://github.com/pydata/pandas/issues/8450

Unfortunately I wasn't able to find too much. Most of those tests are slow because they're checking a lot of things.
This will only shave about 30s off the test time. It's a start...