add two lists with same values

Author: miguelHx

Python/chapter02/2.7 - Intersection/miguel_soln_2.7.py

@@ -225,6 +225,10 @@ def setUp(self):
             (
                 LinkedList(),
                 LinkedList(1, 2, 3, 4)
+            ),
+            (
+                LinkedList(1, 2, 3, 4),
+                LinkedList(1, 2, 3, 4)
             )
         ]