update unit tests for new param

Author: Thanhphan1147

tests/unit/test_bundle.py

@@ -312,12 +312,14 @@ def test_dict_params(self):
         change = AddCharmChange(1, [], params={"charm": "charm",
                                                "series": "series",
                                                "channel": "channel",
+                                               "revision": "revision",
                                                "architecture": "architecture"})
         self.assertEqual({"change_id": 1,
                           "requires": [],
                           "charm": "charm",
                           "series": "series",
                           "channel": "channel",
+                          "revision": "revision",
                           "architecture": "architecture"}, change.__dict__)
 
     def test_dict_params_missing_data(self):
@@ -328,6 +330,7 @@ def test_dict_params_missing_data(self):
                           "charm": "charm",
                           "series": "series",
                           "channel": None,
+                          "revision": None,
                           "architecture": None}, change.__dict__)