pydata/pandas — pull request #8042 by artemyk (2014-08-15 18:51:02+00:00)
Title: Fix testing multiindex dtypes in assert_frame_equal and assert_series_equal

When using `assert_frame_equal` or `assert_series_equal` in the presence of a multiindex, the dtype of the index as a whole is `object`. Hence, there is no checking that the dtypes of the individual levels match. We now iterate through the levels.