Add downstream coverage workflow tests

[AlexanderLanin]

Why

Validate score_coverage against the real coverage workflows used by direct downstream consumers, so integration regressions are caught where the tool is used. Make the resulting coverage data visible and downloadable from CI.

Changes

• Add separate, readable pytest targets for the baselibs and lifecycle coverage workflows, with a local override to this checkout.
• Publish coverage summaries in each GitHub Actions job summary and retain the HTML, LCOV, and justification reports as downloadable test artifacts. Fail if a report contains no measured source files or covered lines; keep lifecycle's existing 66% gate and baselibs' report-only threshold.
• Run the jobs on pull requests, merge queue, and pushes to main. Main runs seed per-consumer Bazel caches for later PRs.
• Exclude baselibs' currently failing vajson_serialize_test from this coverage run; its compact-JSON expectations conflict with the consumer's current pretty-print default.
• Keep these checks limited to the modern direct consumers baselibs and lifecycle; legacy score_tooling consumers are unchanged.

[github-actions]

License Check Results

🚀 The license check job ran with the Bazel command:

bazel run //:license-check

Status: ⚠️ Needs Review

Click to expand output

[License Check Output]
Extracting Bazel installation...
Starting local Bazel server (8.6.0) and connecting to it...
INFO: Invocation ID: 862e70b4-65a1-4da6-9228-1dec0f064f61
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
Loading: 
Loading: 0 packages loaded
Loading: 0 packages loaded
Loading: 0 packages loaded
Analyzing: target //:license-check (1 packages loaded, 0 targets configured)
Analyzing: target //:license-check (1 packages loaded, 0 targets configured)

Analyzing: target //:license-check (5 packages loaded, 6 targets configured)

Analyzing: target //:license-check (5 packages loaded, 6 targets configured)

Analyzing: target //:license-check (5 packages loaded, 6 targets configured)

Analyzing: target //:license-check (5 packages loaded, 6 targets configured)

Analyzing: target //:license-check (5 packages loaded, 6 targets configured)

Analyzing: target //:license-check (5 packages loaded, 6 targets configured)

Analyzing: target //:license-check (5 packages loaded, 6 targets configured)

Analyzing: target //:license-check (5 packages loaded, 6 targets configured)

Analyzing: target //:license-check (49 packages loaded, 10 targets configured)

Analyzing: target //:license-check (88 packages loaded, 10 targets configured)

Analyzing: target //:license-check (103 packages loaded, 37 targets configured)

Analyzing: target //:license-check (148 packages loaded, 1581 targets configured)

Analyzing: target //:license-check (151 packages loaded, 3291 targets configured)

Analyzing: target //:license-check (151 packages loaded, 3291 targets configured)

Analyzing: target //:license-check (151 packages loaded, 3291 targets configured)

Analyzing: target //:license-check (161 packages loaded, 5738 targets configured)

Analyzing: target //:license-check (166 packages loaded, 9814 targets configured)

Analyzing: target //:license-check (166 packages loaded, 9814 targets configured)

Analyzing: target //:license-check (173 packages loaded, 9866 targets configured)

Analyzing: target //:license-check (173 packages loaded, 9866 targets configured)

Analyzing: target //:license-check (177 packages loaded, 11874 targets configured)

INFO: Analyzed target //:license-check (179 packages loaded, 12118 targets configured).

[14 / 16] [Prepa] JavaToolchainCompileBootClasspath external/rules_java+/toolchains/platformclasspath.jar
[15 / 16] Building tools/license.check.license_check.jar (); 0s disk-cache, multiplex-worker
INFO: Found 1 target...
Target //tools:license.check.license_check up-to-date:
  bazel-bin/tools/license.check.license_check
  bazel-bin/tools/license.check.license_check.jar
INFO: Elapsed time: 37.651s, Critical Path: 2.61s
INFO: 16 processes: 12 internal, 3 processwrapper-sandbox, 1 worker.
INFO: Build completed successfully, 16 total actions
INFO: Running command line: bazel-bin/tools/license.check.license_check tools/formatted.txt <args omitted>
usage: org.eclipse.dash.licenses.cli.Main [-batch <int>] [-cd <url>]
       [-confidence <int>] [-ef <url>] [-excludeSources <sources>] [-help] [-lic
       <url>] [-project <shortname>] [-repo <url>] [-review] [-summary <file>]
       [-timeout <seconds>] [-token <token>]

[github-actions]

Documentation preview for this pull request is available at:
pr-22: https://eclipse-score.github.io/coverage_tool/pr-22/

[Copilot]

Copilot review overview

🟡 Changes recommended

Coverage artifacts are lost on gate and empty-report failures, limiting diagnosis of the regressions these tests detect.

Review effort: Balanced
Findings: 2

Open (2)

• Copy test reports before empty-report assertions · New
• Publish coverage artifacts even when coverage gate fails · New

What changed in this PR

Adds CI integration tests that validate score_coverage against the baselibs and lifecycle downstream workflows.

Changes:

• Adds downstream coverage tests and shared workspace/report helpers.
• Adds dedicated Bazel targets and required development dependency.
• Adds a cached matrix workflow with summaries and downloadable artifacts.

File	Description
tools/​downstream_tests/​test_lifecycle.py	Tests lifecycle coverage with its 66% gate.
tools/​downstream_tests/​test_baselibs.py	Tests baselibs coverage with required exclusions.
tools/​downstream_tests/​BUILD	Defines separate downstream pytest targets.
tools/​downstream_tests/​_consumer_workspace.py	Clones consumers, runs Bazel, and retains reports.
MODULE.bazel	Adds the score_tools development dependency.
MODULE.bazel.lock	Locks the new dependency metadata.
.github/​workflows/​tests.yml	Excludes integration tests from the unit-test job.
.github/​workflows/​downstream_tests.yml	Runs downstream tests and uploads their results.

---

💡 Add a code-review agent skill or configure MCP servers for context-aware, tailored reviews. Learn more in the docs.