Class CapturingLogger

src/structlog/testing.py:170–198

Store the method calls that it's been called with. This is nicer than `ReturnLogger` for unit tests because the bound logger doesn't have to cooperate. **Any** method name is supported. .. versionadded:: 20.2.0

class CapturingLogger:
    """
    Store the method calls that it's been called with.

    This is nicer than `ReturnLogger` for unit tests because the bound logger
    doesn't have to cooperate.

    **Any** method name is supported.

    .. versionadded:: 20.2.0
    """

    calls: list[CapturedCall]

    def __init__(self) -> None:
        self.calls = []

    def __repr__(self) -> str:
        return f"<CapturingLogger with {len(self.calls)} call(s)>"

    def __getattr__(self, name: str) -> Any:
        """
        Capture call to `calls`
        """

        def log(*args: Any, **kw: Any) -> None:
            self.calls.append(CapturedCall(name, args, kw))

        return log


class CapturingLoggerFactory: