Fix import in get_custom_facets. (#34122)

Signed-off-by: Jakub Dardzinski <kuba0221@gmail.com>

airflow/providers/openlineage/plugins/facets.py

@@ -33,7 +33,7 @@ class AirflowMappedTaskRunFacet(BaseFacet):
     @classmethod
     def from_task_instance(cls, task_instance):
         task = task_instance.task
-        from airflow.providers.openlineage.utils import get_operator_class
+        from airflow.providers.openlineage.utils.utils import get_operator_class
 
         return cls(
             mapIndex=task_instance.map_index,

tests/providers/openlineage/utils/test_utils.py

@@ -0,0 +1,47 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+from __future__ import annotations
+
+from airflow.decorators import task_group
+from airflow.models.taskinstance import TaskInstance as TI
+from airflow.operators.empty import EmptyOperator
+from airflow.providers.openlineage.plugins.facets import AirflowMappedTaskRunFacet
+from airflow.providers.openlineage.utils.utils import get_custom_facets
+from airflow.utils import timezone
+
+DEFAULT_DATE = timezone.datetime(2016, 1, 1)
+
+
+def test_get_custom_facets(dag_maker):
+    with dag_maker(dag_id="dag_test_get_custom_facets") as dag:
+
+        @task_group
+        def task_group_op(k):
+            EmptyOperator(task_id="empty_operator")
+
+        task_group_op.expand(k=[0])
+
+        dag_maker.create_dagrun()
+        ti_0 = TI(dag.get_task("task_group_op.empty_operator"), execution_date=DEFAULT_DATE, map_index=0)
+
+        assert ti_0.map_index == 0
+
+        assert get_custom_facets(ti_0)["airflow_mappedTask"] == AirflowMappedTaskRunFacet(
+            mapIndex=0,
+            operatorClass=f"{ti_0.task.operator_class.__module__}.{ti_0.task.operator_class.__name__}",
+        )