Only include changes relative to name preservation

Author: Dr-Irv

pandas/tests/indexes/test_base.py

@@ -1072,17 +1072,6 @@ def test_symmetric_difference(self):
         assert tm.equalContents(result, expected)
         assert result.name == 'new_name'
 
-    def test_intersection_difference(self):
-        # Test that the intersection of an index with an
-        # empty index produces the same index as the difference
-        # of an index with itself.  Test for all types
-        skip_index_keys = ['repeats']
-        for key, id in self.indices.items():
-            if key not in skip_index_keys:
-                inter = id.intersection(self.create_empty_index(id))
-                diff = id.difference(id)
-                tm.assert_index_equal(inter, diff)
-
     def test_is_numeric(self):
         assert not self.dateIndex.is_numeric()
         assert not self.strIndex.is_numeric()

pandas/tests/reshape/test_concat.py

@@ -2055,10 +2055,10 @@ def test_concat_categoricalindex(self):
 
         result = pd.concat([a, b, c], axis=1)
 
-        exp_idx = pd.CategoricalIndex([0, 1, 2, 9])
-        exp = pd.DataFrame({0: [1, np.nan, np.nan, 1],
-                            1: [2, 2, np.nan, np.nan],
-                            2: [np.nan, 3, 3, np.nan]},
+        exp_idx = pd.CategoricalIndex([9, 0, 1, 2], categories=categories)
+        exp = pd.DataFrame({0: [1, 1, np.nan, np.nan],
+                            1: [np.nan, 2, 2, np.nan],
+                            2: [np.nan, np.nan, 3, 3]},
                            columns=[0, 1, 2],
                            index=exp_idx)
         tm.assert_frame_equal(result, exp)