Fix make_patch() when root is an array (fixes #28)

Author: stefankoegl

jsonpatch.py

@@ -308,7 +308,7 @@ def compare_dicts(path, src, dst):
         def compare_lists(path, src, dst):
             return _compare_lists(path, src, dst)
 
-        return cls(list(compare_dicts([], src, dst)))
+        return cls(list(compare_values([], src, dst)))
 
     def to_string(self):
         """Returns patch set as JSON string."""

tests.py

@@ -341,6 +341,14 @@ def test_escape(self):
         res = patch.apply(src)
         self.assertEqual(res, dst)
 
+    def test_root_list(self):
+        """ Test making and applying a patch of the root is a list """
+        src = [{'foo': 'bar', 'boo': 'qux'}]
+        dst = [{'baz': 'qux', 'foo': 'boo'}]
+        patch = jsonpatch.make_patch(src, dst)
+        res = patch.apply(src)
+        self.assertEqual(res, dst)
+
 
 class InvalidInputTests(unittest.TestCase):