No test under python unittest in visual studio 2019

[vsfeedback]

This issue has been moved from a ticket on Developer Community.

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I have an existing python project in visual studio 2019 (Version16.3.9) containing unit test created for unittest.py under visual studio 2017. I already configered the project for unittest, because this is needed in visual studio 2019. But there are no unit tests shown.

I got the following error in Output-Pane:

File "C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2019\ENTERPRISE\COMMON7\IDE\EXTENSIONS\MICROSOFT\PYTHON\CORE\PythonFiles\testing_tools\run_adapter.py", line 17, in <module>
    tool, cmd, subargs, toolargs = parse_args()
  File "C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2019\ENTERPRISE\COMMON7\IDE\EXTENSIONS\MICROSOFT\PYTHON\CORE\PythonFiles\testing_tools\adapter\__main__.py", line 81, in parse_args
    subsub = add_subparser(cmdname, toolname, subsubs)
  File "C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2019\ENTERPRISE\COMMON7\IDE\EXTENSIONS\MICROSOFT\PYTHON\CORE\PythonFiles\testing_tools\adapter\__main__.py", line 26, in pytest_add_cli_subparser
    from . import pytest
  File "C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2019\ENTERPRISE\COMMON7\IDE\EXTENSIONS\MICROSOFT\PYTHON\CORE\PythonFiles\testing_tools\adapter\pytest\__init__.py", line 7, in <module>
    from ._discovery import discover
  File "C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2019\ENTERPRISE\COMMON7\IDE\EXTENSIONS\MICROSOFT\PYTHON\CORE\PythonFiles\testing_tools\adapter\pytest\_discovery.py", line 31, in <module>
    patch_translate_non_printable()
  File "C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2019\ENTERPRISE\COMMON7\IDE\EXTENSIONS\MICROSOFT\PYTHON\CORE\PythonFiles\testing_tools\adapter\pytest\_discovery.py", line 15, in patch_translate_non_printable
    translate_non_printable =  getattr(_pytest.compat, "_translate_non_printable")
AttributeError: module '_pytest.compat' has no attribute '_translate_non_printable'

Whole Test-Output is attached.

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Original Comments

Visual Studio Feedback System on 11/25/2019, 02:09 AM:

We have directed your feedback to the appropriate engineering team for further evaluation. The team will review the feedback and notify you about the next steps.

Alexander Jäger on 11/25/2019, 11:33 PM:

When opening the same solution in Visual Studio 2017 (15.9.17) all the tests are shown and can be run.

Visual Studio Feedback System on 1/2/2020, 05:34 PM:

I have detected that for the last 35 days, this issue didn't have much product team activity and a very small amount of new votes or comments. Based on this, its severity, and affected area, it’s my experience that this issue is very unlikely to be fixed.

Bill Schnurr [MSFT] on 1/13/2020, 02:42 PM:

It appears you have pytest installed which is missing _pytest.compat.

If you only want to run unittest i suggest uninstalling pytest from your environment, or try updating to a newer version of pytest that includes _pytest.compat

Thank you

Bill Schnurr [MSFT] on 1/13/2020, 03:00 PM:

sorry I was mistaken. Your version of pytest does have "_pytest.compat" but what its missing is pytest.compat._translate_non_printable. Perhaps its an older version of pytest?

I'll update our script to handle this error better.

Thank you

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Original Solutions

(no solutions)