VSCode pytest test discovery fails

Question

Pytest test discovery is failing. The UI states:

Test discovery error, please check the configuration settings for the tests

The output window s

Answer 1

In my case the problem with vscode being unable to discover tests was the coverage module being enabled in the setup.cfg (alternatively this could be a pytest.ini), i.e.

addopts= --cov  -ra

which caused the test discovery to fail due to low coverage. The solution was to remove that line from the config file.

Also, as suggested in the documentation:

You can also configure testing manually by setting one and only one of the following settings to true: python.testing.unittestEnabled, python.testing.pytestEnabled, and python.testing.nosetestsEnabled.