pov: update tests to v1.3.0 (exercism#1378)

mrcfps · cmccandless · commit fc024e12fc0d · 2018-04-22T23:48:51.000-04:00
Add test for paths not involving root.
diff --git a/exercises/pov/pov_test.py b/exercises/pov/pov_test.py
@@ -3,7 +3,7 @@
 from pov import Tree
 
 
-# Tests adapted from `problem-specifications//canonical-data.json` @ v1.2.0
+# Tests adapted from `problem-specifications//canonical-data.json` @ v1.3.0
 
 class PovTest(unittest.TestCase):
 
@@ -158,6 +158,17 @@ def test_can_find_path_to_cousin(self):
         expected = ['x', 'parent', 'grandparent', 'uncle', 'cousin-1']
         self.assertEqual(tree.path_to('x', 'cousin-1'), expected)
 
+    def test_can_find_path_not_involving_root(self):
+        tree = Tree('grandparent', [
+            Tree('parent', [
+                Tree('x'),
+                Tree('sibling-0'),
+                Tree('sibling-1')
+            ])
+        ])
+        expected = ['x', 'parent', 'sibling-1']
+        self.assertEqual(tree.path_to('x', 'sibling-1'), expected)
+
     def test_can_find_path_from_nodes_other_than_x(self):
         tree = Tree('parent', [
             Tree('a'),
