如何在py.test中显示警告 [英] How to show warnings in py.test

问题描述

我刚刚在我的代码上运行了 py.test 并得到了以下输出:

I just ran py.test on my code and got the following output:

================== 6 passed, 2 pytest-warnings in 40.79 seconds =======================

但是，我看不到 py.test 想要警告我的东西.如何打开警告输出到控制台?

However, I cannot see what py.test would like to warn me about. How can I turn on warning output to the console?

py.test --help 为我提供了-strict 标志:

-strict以严格模式运行pytest，警告变为错误.

--strict run pytest in strict mode, warnings become errors.

但是我只想查看输出，而不是使测试失败.

However I just want to see the output, not make my tests fail.

我检查了 pytest.org 和

I checked pytest.org and this question but they are only concerned with asserting warnings in python, not showing warnings generated on the commandline.

推荐答案

在这种情况下，pytest-warnings是为pytest和/或其插件生成的警告.这些警告不是为您的代码生成的.为了在报告中列出它们，您将需要使用选项 -r w .这是 py.test --help 的一部分:

In this case, pytest-warnings are warnings which were generated for pytest and/or it's plugins. These warnings were not generated for your code. In order to list them in the report, you will need to use option -r w. Here is portion of py.test --help:

-r chars              show extra test summary info as specified by chars (f)ailed,
                      (E)error, (s)skipped, (x)failed, (X)passed
                      (w)pytest-warnings (a)all.

这将允许在报告中显示警告(记录的顶部)，将列出哪些pytest插件使用了不推荐使用的参数(在我的情况下为以下提示):

This will allow to show warnings in the report (top portion of the record) will list which pytest plugins use deprecated arguments (in my case bellow):

...
================================ pytest-warning summary ================================ 
WI1 /Projects/.tox/py27/lib/python2.7/site-packages/pytest_timeout.py:68 'pytest_runtest_protocol' hook uses deprecated __multicall__ argument
WI1 /Projects/.tox/py27/lib/python2.7/site-packages/pytest_capturelog.py:171 'pytest_runtest_makereport' hook uses deprecated __multicall__ argument
...

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