test_logging.py 文件源码

def test_log_converter(handler, framework):
    pytest.importorskip("twisted.logger")
    # this checks that we can convert a plain Twisted Logger calling
    # failure() into a traceback on our observers.
    from twisted.logger import Logger
    from txaio.tx import _LogObserver

    out = six.StringIO()
    observer = _LogObserver(out)
    logger = Logger(observer=observer)

    try:
        raise RuntimeError("failed on purpose")
    except:
        logger.failure(None)

    output = out.getvalue()
    assert "failed on purpose" in output
    assert "Traceback" in output