Hello,

It seems you're missing "pytest-cov", you should be able to get it (along with other tests requirements) by installing from "requirements_test.txt" with "pip install -r requirements_test.txt".

Best regards,

Le dim. 24 oct. 2021 à 16:51, Markus Elfring <Markus.Elfring@web.de> a écrit :
Hello,

I was informed that I should perform some software tests.
https://github.com/PyCQA/astroid#test

Thus I tried the following command out.

[Markus_Elfring@fedora lokal]$ pytest astroid
Failed to open '/proc/1/fd/2': Permission denied
Traceback (most recent call last):
   File "/usr/bin/pytest", line 33, in <module>
     sys.exit(load_entry_point('pytest==6.2.2', 'console_scripts', 'pytest')())

   File "/usr/lib64/python3.9/argparse.py", line 1596, in _handle_conflict_error
     raise ArgumentError(action, message % conflict_string)
argparse.ArgumentError: argument --no-cov: conflicting option string: --no-cov


How should the mentioned system dependencies be fixed?

Regards,
Markus
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