在pytest测试中记录 [英] Logging within pytest tests

问题描述

我想在测试函数中放入一些日志记录语句以检查一些状态变量.

I would like to put some logging statements within test function to examine some state variables.

我有以下代码段:

import pytest,os
import logging

logging.basicConfig(level=logging.DEBUG)
mylogger = logging.getLogger()

#############################################################################

def setup_module(module):
    ''' Setup for the entire module '''
    mylogger.info('Inside Setup')
    # Do the actual setup stuff here
    pass

def setup_function(func):
    ''' Setup for test functions '''
    if func == test_one:
        mylogger.info(' Hurray !!')

def test_one():
    ''' Test One '''
    mylogger.info('Inside Test 1')
    #assert 0 == 1
    pass

def test_two():
    ''' Test Two '''
    mylogger.info('Inside Test 2')
    pass

if __name__ == '__main__':
    mylogger.info(' About to start the tests ')
    pytest.main(args=[os.path.abspath(__file__)])
    mylogger.info(' Done executing the tests ')

我得到以下输出:

[bmaryada-mbp:/Users/bmaryada/dev/platform/main/proto/tests/tpch $]python minitest.py
INFO:root: About to start the tests 
======================================================== test session starts =========================================================
platform darwin -- Python 2.6.2 -- pytest-2.0.0
collected 2 items 

minitest.py ..

====================================================== 2 passed in 0.01 seconds ======================================================
INFO:root: Done executing the tests 

请注意，只有'__ name__ == __main __'块中的日志记录消息才传输到控制台.

Notice that only the logging messages from the '__name__ == __main__' block get transmitted to the console.

是否有一种方法也可以强制 pytest 从测试方法向控制台发出日志记录?

Is there a way to force pytest to emit logging to console from test methods as well?

推荐答案

为我工作，这是我得到的输出:[snip->示例不正确]

Works for me, here's the output I get: [snip -> example was incorrect]

看来您必须将 -s 选项传递给py.test，以便它不会捕获stdout.在这里(未安装py.test)，足以使用 python pytest.py -s pyt.py .

It seems that you have to pass the -s option to py.test so it won't capture stdout. Here (py.test not installed), it was enough to use python pytest.py -s pyt.py.

对于您的代码，只需将 args 中的 -s 传递给 main :

For your code, all you need is to pass -s in args to main:

 pytest.main(args=['-s', os.path.abspath(__file__)])

请参阅捕获输出上的py.test文档.

See the py.test documentation on capturing output.

这篇关于在pytest测试中记录的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！