Coverage badge in gitlab is unknown

Question

I am trying to setup a coverage badge for a python project on GitLab. I was following this question but it is still not working.

Currently I see in "CI/CD"/jobs page this:

But when I go to Settings/"CI-CD"/General pipelines , the coverage report is still unknown:

This is how I defined coverage run in .gitlab-ci.yml file:

tests:
  stage: test
  only:
    - merge_requests
  script:
    - pip install poetry
    - poetry install
    - poetry run coverage run -m pytest
    - poetry run coverage report
    - poetry run coverage xml
  artifacts:
    paths: [coverage.xml]

Any ideas what might need to be set differently?

Answer 1

Okay it looks like that I need to add also -main to only part of my .gitlab-ci.yml and then it works. I was just maybe hoping I can have it without running tests twice (before MR to main and after).