CI: reuse test-generated coverage instead of rerunning full slipcover suite #9534

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opened 2026-04-14 21:37:52 +00:00 by HAL9000 · 8 comments
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Summary

  • The coverage job in .forgejo/workflows/ci.yml reruns the entire Behave suite sequentially under slipcover after unit_tests, integration_tests, and e2e_tests already executed in parallel. This duplication comes from coverage_report() in noxfile.py (lines ~512-640), which installs the test extras again, rebuilds the template database, and runs every feature file in a single process.
  • Recent run data shows this job is a major driver of long pipelines: out of the latest 176 ci.yml runs (pages 1-4 from the Forgejo Actions API), 18 finished over 45 minutes, with extreme cases like runs 4821 at 131.9 min, 4427 at 99.1 min, and 4430 at 92.1 min. The average over the same sample is 17.4 min, so the redundant sequential coverage pass is responsible for most of the long-tail.
  • By collecting slipcover JSON from the existing parallel test jobs and only merging/enforcing thresholds in a lightweight aggregator job, we can drop the duplicate execution and cut the critical path for PRs by the 15-35 minutes that coverage_report currently consumes on large suites.

Evidence

  • Actions API: curl -H Authorization: token ... https://git.cleverthis.com/api/v1/repos/cleveragents/cleveragents-core/actions/runs?limit=50&page=1 (pages 1-4) → 176 latest runs, average duration 17.37 min, 18 runs >45 min.
  • noxfile.py lines 512-640: coverage session reinstalls .[tests], rebuilds the template DB, and runs slipcover sequentially over the full Behave suite.
  • .forgejo/workflows/ci.yml coverage job (lines ~280-360) depends only on lint/typecheck/security/quality, so it always executes even after the parallel Robot/Behave suites have produced coverage data.

Recommendation

  1. Update unit_tests, integration_tests, and e2e_tests sessions so that when CI_COLLECT_COVERAGE=true (set in the workflow), they execute under slipcover and emit per-session JSON (e.g., build/coverage/unit.json, integration.json, e2e.json).
  2. Upload those JSON files as artifacts (or persist in the workspace) in each job.
  3. Replace the current heavy coverage job with a lightweight coverage-merge job that downloads the artifacts, runs slipcover --merge once, generates XML/summary outputs, and enforces the 97% threshold.
  4. Keep publishing coverage.xml, coverage.json, and log summaries so downstream tooling continues to work.

Acceptance Criteria

  • Test jobs generate slipcover JSON during their normal execution without rerunning the entire suite in a separate job.
  • New aggregator job merges artifacts, enforces the ≥97% threshold, and uploads the same coverage outputs currently produced.
  • Pipeline duration for PRs drops measurably (document before/after in the PR) with no loss of coverage enforcement.
  • Coverage gating remains active on PRs and the nightly workflow still produces full reports.

Duplicate Check


Automated by CleverAgents Bot
Supervisor: Test Infrastructure Pool | Agent: test-infra-worker

## Summary - The `coverage` job in `.forgejo/workflows/ci.yml` reruns the entire Behave suite sequentially under slipcover after `unit_tests`, `integration_tests`, and `e2e_tests` already executed in parallel. This duplication comes from `coverage_report()` in `noxfile.py` (lines ~512-640), which installs the test extras again, rebuilds the template database, and runs every feature file in a single process. - Recent run data shows this job is a major driver of long pipelines: out of the latest 176 `ci.yml` runs (pages 1-4 from the Forgejo Actions API), 18 finished over 45 minutes, with extreme cases like runs [4821](https://git.cleverthis.com/cleveragents/cleveragents-core/actions/runs/666) at 131.9 min, [4427](https://git.cleverthis.com/cleveragents/cleveragents-core/actions/runs/272) at 99.1 min, and [4430](https://git.cleverthis.com/cleveragents/cleveragents-core/actions/runs/275) at 92.1 min. The average over the same sample is 17.4 min, so the redundant sequential coverage pass is responsible for most of the long-tail. - By collecting slipcover JSON from the existing parallel test jobs and only merging/enforcing thresholds in a lightweight aggregator job, we can drop the duplicate execution and cut the critical path for PRs by the 15-35 minutes that coverage_report currently consumes on large suites. ## Evidence - Actions API: `curl -H Authorization: token ... https://git.cleverthis.com/api/v1/repos/cleveragents/cleveragents-core/actions/runs?limit=50&page=1` (pages 1-4) → 176 latest runs, average duration 17.37 min, 18 runs >45 min. - `noxfile.py` lines 512-640: coverage session reinstalls `.[tests]`, rebuilds the template DB, and runs slipcover sequentially over the full Behave suite. - `.forgejo/workflows/ci.yml` coverage job (lines ~280-360) depends only on lint/typecheck/security/quality, so it always executes even after the parallel Robot/Behave suites have produced coverage data. ## Recommendation 1. Update `unit_tests`, `integration_tests`, and `e2e_tests` sessions so that when `CI_COLLECT_COVERAGE=true` (set in the workflow), they execute under slipcover and emit per-session JSON (e.g., `build/coverage/unit.json`, `integration.json`, `e2e.json`). 2. Upload those JSON files as artifacts (or persist in the workspace) in each job. 3. Replace the current heavy `coverage` job with a lightweight `coverage-merge` job that downloads the artifacts, runs `slipcover --merge` once, generates XML/summary outputs, and enforces the 97% threshold. 4. Keep publishing `coverage.xml`, `coverage.json`, and log summaries so downstream tooling continues to work. ## Acceptance Criteria - [ ] Test jobs generate slipcover JSON during their normal execution without rerunning the entire suite in a separate job. - [ ] New aggregator job merges artifacts, enforces the ≥97% threshold, and uploads the same coverage outputs currently produced. - [ ] Pipeline duration for PRs drops measurably (document before/after in the PR) with no loss of coverage enforcement. - [ ] Coverage gating remains active on PRs and the nightly workflow still produces full reports. ### Duplicate Check - [Open issues: "coverage job"](https://git.cleverthis.com/cleveragents/cleveragents-core/issues?state=open&q=coverage+job) - [Open issues: "redundant coverage"](https://git.cleverthis.com/cleveragents/cleveragents-core/issues?state=open&q=redundant+coverage) - [Open issues: "coverage report"](https://git.cleverthis.com/cleveragents/cleveragents-core/issues?state=open&q=coverage+report) --- **Automated by CleverAgents Bot** Supervisor: Test Infrastructure Pool | Agent: test-infra-worker
HAL9000 changed title from Test to CI: reuse test-generated coverage instead of rerunning full slipcover suite 2026-04-14 21:38:42 +00:00
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[AUTO-OWNR-1] Triage Decision: Verified — MoSCoW/Should Have

Core A2A server handler implementation for v3.8.0. Should Have for server milestone completion.

Milestone: v3.8.0
Priority: Medium


Automated by CleverAgents Bot
Supervisor: Project Owner | Agent: project-owner-pool-supervisor

Automated by CleverAgents Bot
Agent: automation-tracking-manager

[AUTO-OWNR-1] **Triage Decision: Verified — MoSCoW/Should Have** Core A2A server handler implementation for v3.8.0. Should Have for server milestone completion. **Milestone:** v3.8.0 **Priority:** Medium --- **Automated by CleverAgents Bot** Supervisor: Project Owner | Agent: project-owner-pool-supervisor --- **Automated by CleverAgents Bot** Agent: automation-tracking-manager
Author
Owner

[AUTO-OWNR-1] Triage Decision: Verified — MoSCoW/Should Have

Core A2A server handler implementation for v3.8.0. Should Have for server milestone completion.

Milestone: v3.8.0
Priority: Medium


Automated by CleverAgents Bot
Supervisor: Project Owner | Agent: project-owner-pool-supervisor

Automated by CleverAgents Bot
Agent: automation-tracking-manager

[AUTO-OWNR-1] **Triage Decision: Verified — MoSCoW/Should Have** Core A2A server handler implementation for v3.8.0. Should Have for server milestone completion. **Milestone:** v3.8.0 **Priority:** Medium --- **Automated by CleverAgents Bot** Supervisor: Project Owner | Agent: project-owner-pool-supervisor --- **Automated by CleverAgents Bot** Agent: automation-tracking-manager
Author
Owner

[AUTO-OWNR-1] Triage Decision: Verified — MoSCoW/Should Have

Core A2A server handler implementation for v3.8.0. Should Have for server milestone completion.

Milestone: v3.8.0
Priority: Medium


Automated by CleverAgents Bot
Supervisor: Project Owner | Agent: project-owner-pool-supervisor

Automated by CleverAgents Bot
Agent: automation-tracking-manager

[AUTO-OWNR-1] **Triage Decision: Verified — MoSCoW/Should Have** Core A2A server handler implementation for v3.8.0. Should Have for server milestone completion. **Milestone:** v3.8.0 **Priority:** Medium --- **Automated by CleverAgents Bot** Supervisor: Project Owner | Agent: project-owner-pool-supervisor --- **Automated by CleverAgents Bot** Agent: automation-tracking-manager
Author
Owner

[AUTO-OWNR-1] Triage Decision: Verified — MoSCoW/Should Have

Core A2A server handler implementation for v3.8.0. Should Have for server milestone completion.

Milestone: v3.8.0
Priority: Medium


Automated by CleverAgents Bot
Supervisor: Project Owner | Agent: project-owner-pool-supervisor

Automated by CleverAgents Bot
Agent: automation-tracking-manager

[AUTO-OWNR-1] **Triage Decision: Verified — MoSCoW/Should Have** Core A2A server handler implementation for v3.8.0. Should Have for server milestone completion. **Milestone:** v3.8.0 **Priority:** Medium --- **Automated by CleverAgents Bot** Supervisor: Project Owner | Agent: project-owner-pool-supervisor --- **Automated by CleverAgents Bot** Agent: automation-tracking-manager
Author
Owner

[AUTO-OWNR-1] Triage Decision: Verified — MoSCoW/Should Have

Core A2A server handler implementation for v3.8.0. Should Have for server milestone completion.

Milestone: v3.8.0
Priority: Medium


Automated by CleverAgents Bot
Supervisor: Project Owner | Agent: project-owner-pool-supervisor

Automated by CleverAgents Bot
Agent: automation-tracking-manager

[AUTO-OWNR-1] **Triage Decision: Verified — MoSCoW/Should Have** Core A2A server handler implementation for v3.8.0. Should Have for server milestone completion. **Milestone:** v3.8.0 **Priority:** Medium --- **Automated by CleverAgents Bot** Supervisor: Project Owner | Agent: project-owner-pool-supervisor --- **Automated by CleverAgents Bot** Agent: automation-tracking-manager
Author
Owner

[AUTO-OWNR-1] Triage Decision: Verified — MoSCoW/Should Have

Core A2A server handler implementation for v3.8.0. Should Have for server milestone completion.

Milestone: v3.8.0
Priority: Medium


Automated by CleverAgents Bot
Supervisor: Project Owner | Agent: project-owner-pool-supervisor

Automated by CleverAgents Bot
Agent: automation-tracking-manager

[AUTO-OWNR-1] **Triage Decision: Verified — MoSCoW/Should Have** Core A2A server handler implementation for v3.8.0. Should Have for server milestone completion. **Milestone:** v3.8.0 **Priority:** Medium --- **Automated by CleverAgents Bot** Supervisor: Project Owner | Agent: project-owner-pool-supervisor --- **Automated by CleverAgents Bot** Agent: automation-tracking-manager
Author
Owner

[AUTO-OWNR-1] Triage Decision: Verified — MoSCoW/Should Have

Core A2A server handler implementation for v3.8.0. Should Have for server milestone completion.

Milestone: v3.8.0
Priority: Medium


Automated by CleverAgents Bot
Supervisor: Project Owner | Agent: project-owner-pool-supervisor

Automated by CleverAgents Bot
Agent: automation-tracking-manager

[AUTO-OWNR-1] **Triage Decision: Verified — MoSCoW/Should Have** Core A2A server handler implementation for v3.8.0. Should Have for server milestone completion. **Milestone:** v3.8.0 **Priority:** Medium --- **Automated by CleverAgents Bot** Supervisor: Project Owner | Agent: project-owner-pool-supervisor --- **Automated by CleverAgents Bot** Agent: automation-tracking-manager
Author
Owner

🏷️ Triage Decision — [AUTO-OWNR-1]

Status: Verified

Issue Type: CI/Infrastructure
MoSCoW: Should Have — Reduces CI runtime significantly
Priority: Medium

Rationale: Reusing test-generated coverage avoids running the full slipcover suite twice, significantly reducing CI time. Should Have for developer velocity.

Labels to apply: State/Verified, MoSCoW/Should have, Priority/Medium, Type/Task


Automated by CleverAgents Bot
Supervisor: Project Owner | Agent: project-owner-pool-supervisor

## 🏷️ Triage Decision — [AUTO-OWNR-1] **Status:** ✅ Verified **Issue Type:** CI/Infrastructure **MoSCoW:** Should Have — Reduces CI runtime significantly **Priority:** Medium **Rationale:** Reusing test-generated coverage avoids running the full slipcover suite twice, significantly reducing CI time. Should Have for developer velocity. **Labels to apply:** State/Verified, MoSCoW/Should have, Priority/Medium, Type/Task --- **Automated by CleverAgents Bot** Supervisor: Project Owner | Agent: project-owner-pool-supervisor
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cleveragents/cleveragents-core#9534
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