Some more tests

Author: hexgnu

pandas/core/reshape/merge.py

@@ -667,7 +667,6 @@ def _maybe_restore_index_levels(self, result):
             result.set_index(names_to_restore, inplace=True)
 
     def _maybe_add_join_keys(self, result, left_indexer, right_indexer):
-
         left_has_missing = None
         right_has_missing = None
 

pandas/tests/reshape/merge/test_merge.py

@@ -1807,7 +1807,6 @@ def test_merge_on_indexes(self, left_df, right_df, how, sort, expected):
 
 
 class TestMergeSparseDataFrames(object):
-    # Cannot seem to get 0 or 1 working with sparse data frame
     @pytest.mark.parametrize('fill_value,how', itertools.product([0, 1,
                                                                   None,
                                                                   np.nan],