py.test记录通过的测试

Question

I have been over and over the documentation, but I can not fine out how I get py.test to write to the log for tests that pass. For example if I run "py.test --resultlog=mylog.txt myPytest.py" mylog.txt only has one line for each test that passed. I want to add other things to each test recorded in my log file, regardless whether thy passed or failed. For example I need to know the time they ran, some of the output data etc. How do I get py.test to include data about the test (passed and failed) in the py.test log file?

Answer 1

You can have a look if the junitxml output provides any more information. But I suspect that if you want the actual time rather then duration etc you will have to write your own plugin. The documentation gives you the relevant hooks: http://pytest.org/latest/plugins.html?highlight=hooks#reporting-hooks

Answer 2

pytest now supports the -s argument to prevent capturing logging calls for passing tests.

pytest -s

From the documentation :

-s, –capture=no Normally stdout and stderr are captured and only shown for failing tests. The -s option can be used to disable capturing, showing stdcalls for print statements, logging calls, etc.

Answer 3

you could use py-cov combine with pytest

py.test --cov $(MOD_NAME) --cov-config .coveragerc --cov-report xml --junit-xml=results.xml

and here you will get all the info you need as we are used to push the coverage.xml file to sonarqube and get all the data available.

If you do really need customized data/logs coming from your tests functions just pass -s so pytest will stop catching the output and it will print it on the console (and you can stream it to a file maybe, not that nice)

Answer 4

This hook is an experimental and it is called whenever the assertion passes. From documentation-

Use this hook to do some processing after a passing assertion. The original assertion information is available in the orig string and the pytest introspected assertion information is available in the expl string.

This hook must be explicitly enabled by the enable_assertion_pass_hook ini-file option:

[pytest]
enable_assertion_pass_hook=true

You need to clean the .pyc files in your project directory and interpreter libraries when enabling this option, as assertions will require to be re-written.

import logging
log = logging.getLogger(__name__)
def pytest_assertion_pass(item, lineno, orig, expl):
   """
      Prints the log(log file) every time the assert passes
   """
   log.info(str(item) + ' | lineno: ' + str(lineno) + ' | ' + orig + ' | PASS')