Re: [Tutor] redirecting testing output to file, using two different options
Yosef Levy wrote:
> Hello All,
>
> I have testing environment.
> Code is written under Python 2.6.
> testing output should be redirected to log file.
> I am using two different file handling, in order to log output:
>
>
>
> 1. logging module:
>
> import unittest2
> import logging
> import sys
>
> class TestMyEnvClass (unittest2.TestCase):
> def setUp (self):
> pass
> def testMyEnv (self):
> logging.debug ( "In testMyEnv.." )
> def tearDown (self):
> pass
>
> if __name__ == "__main__":
> logging.basicConfig( filename='log_file.txt', stream=sys.stderr,
> level=logging.DEBUG)
> logging.getLogger( "TestMyEnvClass.testMyEnv" ).setLevel(
> logging.DEBUG
> )
> unittest2.main()
>
>
> running:
> python test.py
>
> output:
> # cat log_file.txt
> DEBUG:root:In testMyEnv..
> #
>
>
>
>
>
> 2. but if I want to redirect assert messages to file, I have to:
>
> import unittest2
>
> class TestMyEnvClass (unittest2.TestCase):
> def setUp (self):
> pass
> def testMyEnv (self):
> res = True
> self.assertEqual(res, True, 'Testing my environment..')
> def tearDown (self):
> pass
>
> if __name__ == "__main__":
> f = open('log_file.txt', "a")
> runner = unittest2.TextTestRunner(f)
> unittest2.main(testRunner=runner)
> f.close ()
>
>
>
> running:
> # python test2.py
>
> output:
> # cat log_file.txt
> .
> --
> Ran 1 test in 0.000s
>
> OK
>
>
>
> Question:
> Is the a way to 'merge' the above two different ways output to file?
> Or, is there a way to redirect assert messages to logging module methods?
You can either write a file-like object that uses Logger methods under the
hood or write your own test runner that uses Logger methods.
A basic example targeting Python 3:
$ cat log_unittest.py
import logging
import unittest
import os
logger = logging.getLogger()
class TestMyEnvClass (unittest.TestCase):
def setUp(self):
pass
def testMyEnv(self):
res = os.environ.get("res") == "1"
self.assertEqual(res, True, 'Testing my environment..')
def tearDown(self):
pass
class LogStream:
def __init__(self, logger):
self.logger = logger
def writeln(self, s=""):
self.logger.info(s)
def write(self, s):
self.logger.info(s)
def flush(self):
pass
class MyTextTestRunner(unittest.TextTestRunner):
def __init__(self, logger):
super().__init__(None)
self.stream = LogStream(logger)
if __name__ == "__main__":
logging.basicConfig(level=logging.INFO)
logging.info("hello world")
runner = MyTextTestRunner(logger)
unittest.main(testRunner=runner)
$ res=1 python3 log_unittest.py
INFO:root:hello world
INFO:root:.
INFO:root:
INFO:root:--
INFO:root:Ran 1 test in 0.000s
INFO:root:
INFO:root:OK
INFO:root:
$ res=0 python3 log_unittest.py
INFO:root:hello world
INFO:root:F
INFO:root:
INFO:root:==
INFO:root:FAIL: testMyEnv (__main__.TestMyEnvClass)
INFO:root:--
INFO:root:Traceback (most recent call last):
File "log_unittest.py", line 14, in testMyEnv
self.assertEqual(res, True, 'Testing my environment..')
AssertionError: False != True : Testing my environment..
INFO:root:--
INFO:root:Ran 1 test in 0.001s
INFO:root:
INFO:root:FAILED
INFO:root: (failures=1)
If you want more control you have to rewrite more code ;)
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Re: [Tutor] redirecting testing output to file, using two different options
As I understand from documentation reading, pytest does not support advanced file handling like logging module.. for example: log file rotate, limit file size etc. I am using OS Centos6 2018-05-16 21:48 GMT+03:00 Mats Wichmann : > On 05/16/2018 02:53 AM, Yosef Levy wrote: > > Hello All, > > > > I have testing environment. > > Code is written under Python 2.6. > > Why? 2.6 was retired in October 2013. For long life of your code you > should be using Python 3, but at least 2.7 is still current and getting > updates (for another 18 months or so). > > > > testing output should be redirected to log file. > > I am using two different file handling, in order to log output: > > > > > > > > 1. logging module: > > > 2. but if I want to redirect assert messages to file, I have to: > > > > import unittest2 > > > Question: > > Is the a way to 'merge' the above two different ways output to file? > > Or, is there a way to redirect assert messages to logging module methods? > > If you use pytest, this should be fairly straightforward. It normally > captures stdout and stderr (the latter should have your asserts), and > with a plugin, puts logging output on the same basis, so you get get > everything going the same place: > > https://pypi.org/project/pytest-catchlog/#description > ___ > Tutor maillist - Tutor@python.org > To unsubscribe or change subscription options: > https://mail.python.org/mailman/listinfo/tutor > ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] redirecting testing output to file, using two different options
On 05/16/2018 02:53 AM, Yosef Levy wrote: > Hello All, > > I have testing environment. > Code is written under Python 2.6. Why? 2.6 was retired in October 2013. For long life of your code you should be using Python 3, but at least 2.7 is still current and getting updates (for another 18 months or so). > testing output should be redirected to log file. > I am using two different file handling, in order to log output: > > > > 1. logging module: > 2. but if I want to redirect assert messages to file, I have to: > > import unittest2 > Question: > Is the a way to 'merge' the above two different ways output to file? > Or, is there a way to redirect assert messages to logging module methods? If you use pytest, this should be fairly straightforward. It normally captures stdout and stderr (the latter should have your asserts), and with a plugin, puts logging output on the same basis, so you get get everything going the same place: https://pypi.org/project/pytest-catchlog/#description ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] redirecting testing output to file, using two different options
On 16/05/18 09:53, Yosef Levy wrote: > Hello All, > > I have testing environment. > Code is written under Python 2.6. > testing output should be redirected to log file. You don't say which OS you are using but if it's a Unix variant you could just use command line redirection of stdout/stderr. That is probably the simplest option and requires no code changes. I think asserts and the logging module both use stderr by default. At least I would hope that they do! Redirect stderr to a logfile with $ python myscript.py arg1 arg2...argn 2> mylogfile.txt Windows supports redirection too but I don't recall how (or if) you can isolate stderr... HTH -- Alan G Author of the Learn to Program web site http://www.alan-g.me.uk/ http://www.amazon.com/author/alan_gauld Follow my photo-blog on Flickr at: http://www.flickr.com/photos/alangauldphotos ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
