test: improve coverage

Author: Joris Conijn

tests/functional/test_lambda_trigger_events.py

@@ -51,6 +51,8 @@ def message(self) -> str:
 
     assert DataClassSample({"message": "foo1"}) == DataClassSample({"message": "foo1"})
     assert DataClassSample({"message": "foo1"}) != DataClassSample({"message": "foo2"})
+    assert DataClassSample({"message": "foo1"}) is not object()
+    assert object() is not DataClassSample({"message": "foo1"})
 
 
 def test_cloud_watch_trigger_event():