26 lines
624 B
Python
26 lines
624 B
Python
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# -*- test-case-name: twisted.logger.test.test_capture -*-
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# Copyright (c) Twisted Matrix Laboratories.
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# See LICENSE for details.
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"""
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Context manager for capturing logs.
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"""
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from contextlib import contextmanager
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from typing import Iterator, List, Sequence, cast
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from twisted.logger import globalLogPublisher
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from ._interfaces import ILogObserver, LogEvent
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@contextmanager
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def capturedLogs() -> Iterator[Sequence[LogEvent]]:
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events: List[LogEvent] = []
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observer = cast(ILogObserver, events.append)
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globalLogPublisher.addObserver(observer)
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yield events
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globalLogPublisher.removeObserver(observer)
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