py.test 日志控制 [英] py.test logging control

问题描述

我们最近切换到 py.test 进行 python 测试(顺便说一句，这太棒了).但是，我试图弄清楚如何控制日志输出(即内置的 python 日志记录模块).我们已经安装了 pytest-capturelog，它按预期工作，当我们想查看日志时，我们可以传递 --nologcapture 选项.

We have recently switched to py.test for python testing (which is fantastic btw). However, I'm trying to figure out how to control the log output (i.e. the built-in python logging module). We have pytest-capturelog installed and this works as expected and when we want to see logs we can pass --nologcapture option.

但是，您如何控制日志记录级别(例如信息、调试等)并过滤日志记录(如果您只对特定模块感兴趣).是否有现有的 py.test 插件来实现这一点，还是我们需要自己推出?

However, how do you control the logging level (e.g. info, debug etc.) and also filter the logging (if you're only interested in a specific module). Is there existing plugins for py.test to achieve this or do we need to roll our own?

谢谢，乔尼

推荐答案

正如 Holger 所说，你可以使用 pytest-capturelog:

As Holger said you can use pytest-capturelog:

def test_foo(caplog):
    caplog.setLevel(logging.INFO)
    pass

如果您不想使用 pytest-capturelog，您可以使用标准输出 StreamHandler 在您的日志配置中，这样 pytest 将捕获日志输出.这是一个示例 basicConfig

If you don't want to use pytest-capturelog you can use a stdout StreamHandler in your logging config so pytest will capture the log output. Here is an example basicConfig

logging.basicConfig(level=logging.DEBUG, stream=sys.stdout)

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