ashb commented on a change in pull request #21445:
URL: https://github.com/apache/airflow/pull/21445#discussion_r806270601



##########
File path: tests/serialization/test_dag_serialization.py
##########
@@ -1174,6 +1175,24 @@ def test_operator_deserialize_old_names(self):
         serialized_op = SerializedBaseOperator.deserialize_operator(blob)
         assert serialized_op.downstream_task_ids == {'foo'}
 
+    def test_task_resources(self):
+        """
+        Test TaskGroup serialization/deserialization.
+        """
+        from airflow.operators.dummy import DummyOperator
+
+        execution_date = datetime(2020, 1, 1)
+        task_id = 'task1'
+        with DAG("test_task_resources", start_date=execution_date) as dag:
+            task = DummyOperator(task_id=task_id, resources={"cpus": 0.1, 
"ram": 2048})
+
+        SerializedDAG.validate_schema(SerializedDAG.to_dict(dag))
+

Review comment:
       That the resources part of the task is correctly represented -- 
crucially that it's tested in this file, so that it's more obvious if someone 
makes a breaking change to how this is serialized in the future.




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