GitLab test coverage visualization is not working on a simple example ... Here is my .gitlab-ci.yml: image: python:3 stages: - test coverage: stage: test script: - pip install coverage - coverage run ./main.py - coverage report -m - coverage xml artifacts: paths: - ./coverage.xml reports: cobertura: ./coverage.xml only: - master In logs I can see . Test coverage visualization (FREE) . The coverage_fuzzing report collects coverage fuzzing bugs. Test coverage Visualization artifact size limit - gitlab.com Our MWE project is based on this: Gitlab CI not showing Cobertura code coverage visualization How test coverage visualization works; Example test coverage configuration; Enabling the feature. Here is my .gitlab-ci . What's new? Unit test reports | GitLab Gitlab test coverage visualization is not working. Introduced in GitLab 12.9.; Feature flag removed in GitLab 13.5.; With the help of GitLab CI/CD, you can collect the test coverage information of your favorite testing or coverage-analysis tool, and visualize this information inside the file diff view of your merge requests (MRs).This will allow you to see which lines are covered by tests, and which lines . Testing best practices | GitLab Test coverage visualization SSH keys External secrets Connect to cloud services Authenticating with HashiCorp Vault For customers utilizing Git Flow getting test data like coverage and test summaries from features branches is hard . Test coverage Visualization artifact size limit - gitlab.com This enables seeing test coverage information inside the file diff view of MRs. I will share additional configurations upon request. We are using Gitlab SaaS. Gitlab test coverage visualization is not working - NodeJS [ Glasses to protect eyes while coding : https://amzn.to/3N1ISWI ] Gitlab test coverage visualiza.