Add test for lock

Author: bouwew

tests/test_legacy_stretch.py

@@ -74,6 +74,10 @@ async def test_connect_stretch_v23(self):
             smile, "2587a7fcdd7e482dab03fda256076b4b"
         )
         assert switch_change
+        switch_change = await self.tinker_switch(
+            smile, "2587a7fcdd7e482dab03fda256076b4b", model="lock"
+        )
+        assert switch_change
         switch_change = await self.tinker_switch(
             smile,
             "f7b145c8492f4dd7a4de760456fdef3e",