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50 lines
1.7 KiB
Python
50 lines
1.7 KiB
Python
# Copyright 2025 Collate
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# Licensed under the Collate Community License, Version 1.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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# https://github.com/open-metadata/OpenMetadata/blob/main/ingestion/LICENSE
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Monitor — interval scheduling, lifecycle, and the never-crash guard."""
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import logging
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import time
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from metadata.ingestion.diagnostics.monitors.monitor import Monitor
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def test_monitor_runs_check_until_stopped():
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calls = []
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monitor = Monitor("diag-test", 0.02, lambda: calls.append(1))
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monitor.start()
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time.sleep(0.1)
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monitor.stop()
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monitor.join(timeout=1.0)
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assert not monitor.is_alive()
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assert len(calls) >= 2
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def test_monitor_logs_and_continues_when_check_raises(caplog):
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state = {"n": 0}
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def boom():
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state["n"] += 1
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raise ValueError("kaboom")
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monitor = Monitor("diag-test", 0.02, boom)
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with caplog.at_level(logging.ERROR, logger="metadata.Diagnostics"):
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monitor.start()
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time.sleep(0.1)
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monitor.stop()
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monitor.join(timeout=1.0)
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# The guard caught each raise and the loop kept going (multiple calls)...
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assert state["n"] >= 2
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# ...logging the error under the name-derived label.
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messages = "\n".join(r.getMessage() for r in caplog.records)
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assert "diag.test.error" in messages
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assert "kaboom" in messages
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