add tests

Author: zyc09

pandas/tests/indexes/datetimes/test_date_range.py

@@ -651,9 +651,8 @@ def test_range_closed_boundary(self, inclusive):
         elif inclusive == "both":
             expected_right = both_boundary[1:]
             expected_left = both_boundary[:-1]
-        if inclusive == "neither":
-            expected_left = both_boundary[1:]
-            expected_right = both_boundary[:-1]
+
+        expected_neither = both_boundary[1:-1]
 
         expected_neither = both_boundary[1:-1]