Improve scorecard code-coverage module

[christoph-jerolimov]

This is a follow-up on #3474 and #3476 and should address 5 left overs:

1. Add or verify backend-to-backend authentication
2. Add to the module README.md how to import data with some curl examples
3. Add some demo data to the project (examples/code-coverage folder) that can be importet with one command, prepare app-config.yaml if some secrets are required to import data for example with curl.
4. Add playwright / e2e tests to for the module that ensures that all metrics are available (independ of the values are good or bad)
5. Check if its possible to import the demo data automatically in playwright.

[fullsend-ai-triage]

🤖 Finished Triage · ✅ Success · Started 6:33 AM UTC · Completed 6:36 AM UTC

Commit: 71104e8 · View workflow run →

[fullsend-ai-triage]

Triage Summary

Severity: Medium — improves developer experience and test coverage but doesn't fix a runtime defect.

Key context for implementation:

• Task 1 (auth verification): Backend-to-backend auth was already added in PR feat(scorecard): add code-coverage module #3476 (commit ad65b31) using AuthService with getOwnServiceCredentials() and getPluginRequestToken(). This task is about verifying correctness, not implementing from scratch. Related retro issue Add Backstage service-to-service auth requirement to .fullsend/AGENTS.md #4269 documents the auth pattern for reference.

• Task 4-5 (playwright tests): The existing scorecard workspace structure at workspaces/scorecard/plugins/ has modules for GitHub, OpenSSF, SonarQube, Dependabot, Jira, and filecheck — check if any of these already have playwright tests that can serve as a template.

Proposed test case:

Playwright e2e test suite:
1. Seed code-coverage-backend with known demo data
2. Navigate to scorecard view for an entity with backstage.io/code-coverage annotation
3. Assert all 8 metrics render: line/branch percentage, available, covered, missed
4. Verify metric values match seeded data
5. Edge cases: 0% coverage, 100% coverage, missing annotation

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Labels: This is a multi-faceted enhancement covering documentation, demo data, and e2e tests for the scorecard code-coverage module. Applying enhancement, scorecard, workspace/scorecard, and Tests labels to match repo conventions.

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Next steps:

• /fs-code — agent creates a PR to implement this issue
• /fs-code <your instruction> — agent implements with your specific guidance

[christoph-jerolimov]

/fs-code

[fullsend-ai-coder]

🤖 Finished Code · ✅ Success · Started 7:08 AM UTC · Completed 7:28 AM UTC

Commit: 71104e8 · View workflow run →