clean up test

Author: JustinZhengBC

pandas/tests/reshape/merge/test_merge.py

@@ -1041,48 +1041,21 @@ def test_merge_two_empty_df_no_division_error(self):
         'index,expected_index',
         [(CategoricalIndex([1, 2, 4]),
           CategoricalIndex([1, 2, 4, None, None, None])),
-         (DatetimeIndex(['2001-01-01',
-                         '2002-02-02',
-                         '2003-03-03']),
-          DatetimeIndex(['2001-01-01',
-                         '2002-02-02',
-                         '2003-03-03',
-                         pd.NaT,
-                         pd.NaT,
-                         pd.NaT])),
+         (DatetimeIndex(['2001-01-01', '2002-02-02', '2003-03-03']),
+          DatetimeIndex(['2001-01-01', '2002-02-02', '2003-03-03',
+                         pd.NaT, pd.NaT, pd.NaT])),
          (Float64Index([1, 2, 3]),
           Float64Index([1, 2, 3, None, None, None])),
          (Int64Index([1, 2, 3]),
           Float64Index([1, 2, 3, None, None, None])),
-         (IntervalIndex.from_tuples([(1, 2),
-                                     (2, 3),
-                                     (3, 4)]),
-          IntervalIndex.from_tuples([(1, 2),
-                                     (2, 3),
-                                     (3, 4),
-                                     np.nan,
-                                     np.nan,
-                                     np.nan])),
-         (PeriodIndex(['2001-01-01',
-                       '2001-01-02',
-                       '2001-01-03'],
-                      freq='D'),
-          PeriodIndex(['2001-01-01',
-                       '2001-01-02',
-                       '2001-01-03',
-                       pd.NaT,
-                       pd.NaT,
-                       pd.NaT],
-                      freq='D')),
-         (TimedeltaIndex(['1d',
-                          '2d',
-                          '3d']),
-          TimedeltaIndex(['1d',
-                          '2d',
-                          '3d',
-                          pd.NaT,
-                          pd.NaT,
-                          pd.NaT]))])
+         (IntervalIndex.from_tuples([(1, 2), (2, 3), (3, 4)]),
+          IntervalIndex.from_tuples([(1, 2), (2, 3), (3, 4),
+                                     np.nan, np.nan, np.nan])),
+         (PeriodIndex(['2001-01-01', '2001-01-02', '2001-01-03'], freq='D'),
+          PeriodIndex(['2001-01-01', '2001-01-02', '2001-01-03',
+                       pd.NaT, pd.NaT, pd.NaT], freq='D')),
+         (TimedeltaIndex(['1d', '2d', '3d']),
+          TimedeltaIndex(['1d', '2d', '3d', pd.NaT, pd.NaT, pd.NaT]))])
     def test_merge_on_index_with_more_values(self, how, index, expected_index):
         # GH 24212
         # pd.merge gets [0, 1, 2, -1, -1, -1] as left_indexer, ensure that
@@ -1117,6 +1090,7 @@ def test_merge_right_index_right(self):
         tm.assert_frame_equal(result, expected)
 
     def test_merge_take_missing_values_from_index_of_other_dtype(self):
+        # GH 24212
         left = pd.DataFrame({'a': [1, 2, 3],
                              'key': pd.Categorical(['a', 'a', 'b'],
                                                    categories=list('abc'))})