potiuk commented on code in PR #66573:
URL: https://github.com/apache/airflow/pull/66573#discussion_r3264975134


##########
task-sdk/tests/task_sdk/execution_time/test_task_runner.py:
##########
@@ -475,6 +475,40 @@ def send_side_effect(msg=None, **kwargs):
     assert error is None
 
 
+def test_run_exits_nonzero_when_failure_terminal_send_fails(create_runtime_ti, 
mock_supervisor_comms):
+    """
+    When the task FAILS and the terminal-state send to the supervisor fails too
+    (e.g. broken Unix socket / supervisor crashed / IPC channel dead), `run()`
+    must not silently swallow it: the supervisor's `final_state` property
+    defaults exit_code-0-with-no-terminal-state to SUCCESS, which would turn
+    a transient IPC blip into a silent data-quality bug downstream. Exit
+    non-zero so the supervisor classifies this as FAILED / UP_FOR_RETRY.
+    """
+    from airflow.sdk.execution_time.task_runner import run

Review Comment:
   Done in 1b2449e — also dropped from the new test in the same pass.
   
   ---
   Drafted-by: Claude Code (Opus 4.7); reviewed by @potiuk before posting



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