Add testcases for last_reset-values

Author: bouwew

tests/test_smile.py

@@ -1755,7 +1755,7 @@ async def test_connect_stretch_v31(self):
             },
             # Vaatwasser
             "aac7b735042c4832ac9ff33aae4f453b": {
-                "sensors": [{"id": "electricity_consumed_interval", "state": 0.71}]
+                "sensors": [{"id": "electricity_consumed_interval", "state": 0.71, "last_reset": datetime.datetime(2020, 9, 6, 12, 00)}]
             },
         }
 
@@ -1794,7 +1794,7 @@ async def test_connect_stretch_v23(self):
             },
             # Wasdroger 043AECA
             "fd1b74f59e234a9dae4e23b2b5cf07ed": {
-                "sensors": [{"id": "electricity_consumed_interval", "state": 0.21}]
+                "sensors": [{"id": "electricity_consumed_interval", "state": 0.21, "last_reset": datetime.datetime(2020, 8, 3, 20, 00)}]
             },
         }