Test for issue nv-morpheus#1838

tests/pipeline/test_pipeline_error.py

@@ -0,0 +1,60 @@
+#!/usr/bin/env python
+# SPDX-FileCopyrightText: Copyright (c) 2024, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed 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.
+
+import collections.abc
+import time
+
+import mrc
+import pytest
+
+from morpheus.config import Config
+from morpheus.pipeline.linear_pipeline import LinearPipeline
+from morpheus.pipeline.stage_decorator import source
+from morpheus.pipeline.stage_decorator import stage
+
+
+@source
+def error_source(subscriber: mrc.Subscriber, *, raise_error: bool = False) -> collections.abc.Iterator[int]:
+    yield 1
+
+    if raise_error:
+        raise RuntimeError("Test error in source")
+
+    while subscriber.is_subscribed():
+        time.sleep(0.1)
+
+
+@stage
+def error_stage(i: int, *, raise_error: bool = False) -> int:
+    if raise_error:
+        raise RuntimeError(f"Test error in stage")
+
+    return i
+
+
+@pytest.mark.parametrize("source_error, stage_error", [(True, False), (False, True), (True, True)])
+def test_pipeline(config: Config, source_error: bool, stage_error: bool):
+    """
+    When source_error=False and stage_error=True this reproduces issue #1838
+    """
+
+    config = Config()
+    pipe = LinearPipeline(config)
+    pipe.set_source(error_source(config, raise_error=source_error))
+    pipe.add_stage(error_stage(config, raise_error=stage_error))
+
+    with pytest.raises(RuntimeError, match="^Test error in (source|stage)$"):
+        pipe.run()