mirror of
https://github.com/dotnet/skills.git
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Amaury Levé
3d59e44c7e
* Fix coverage-analysis activation for plateau diagnosis prompts coverage-analysis SKILL.md: - Trim verbose implementation details (provider detection, ReportGenerator) that consumed description budget without aiding skill activation - Add explicit USE FOR keywords: coverage stuck, coverage plateau, can't increase coverage, what's blocking coverage code-testing-agent SKILL.md: - Add 'diagnosing coverage plateaus or CRAP score computation (use coverage-analysis)' to DO NOT USE FOR boundary to prevent test-generation skill from intercepting diagnostic prompts * Potential fix for pull request finding Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com> * Strengthen code-testing-agent activation; harden coverage-analysis isolated mode Address eval regressions reported on PR #647 (run 25813728646): 1. code-testing-agent: `Generate tests for ContosoUniversity ASP.NET Core MVC app` was NOT ACTIVATED in plugin mode (detectedSkills=[], skillEventCount=0, invokedAgents=[]). The model bypassed the skill system entirely. - SKILL.md description: restructure to use the proven `Use when user says ...` pattern with quoted trigger phrases (matching the run-tests skill that consistently activates), make the link to the code-testing-generator sub-agent explicit, and tighten DO NOT USE FOR clauses. - eval prompt (eval.yaml + eval.vally.yaml): make the request pipeline-shaped (`project-wide, multi-file test generation task`, `scaffold a new test project`) so the model recognizes it as multi-step work that benefits from the orchestrated pipeline. Explicitly request coverlet.collector + a Cobertura XML run so rubric criterion 1 (`high line coverage as reported by the Cobertura XML in TestResults/`) becomes achievable without overfitting. 2. code-testing-tester agent + code-testing-extensions/dotnet.md: open a scoped exception to the `skip coverage tools` rule. Default behavior stays the same, but when the user/harness explicitly asks for a Cobertura/XML coverage artifact, the agent may add coverlet.collector to the generated test csproj so the harness's coverage command produces output. The agent still does not run the coverage command itself. 3. coverage-analysis SKILL.md: add a `User-visible output is mandatory` guard at the top of the Workflow section. The latest eval showed isolated mode producing literally `(no output)` in 2 of 3 scenarios — the agent ran Compute-CrapScores.ps1 / Extract-MethodCoverage.ps1 / ReportGenerator in parallel, then the session ended without ever surfacing findings. The guard tells the agent to always return a partial summary instead of ending silent, and to deprioritize ReportGenerator HTML when budget is tight. (Plugin-mode quality is already strong: 4.3 / 4.3 / 5.0 — no regression risk there.) Aggregate dotnet-test plugin description size: 14,925 chars (limit 15,000). skill-validator check passes (22 skills, 11 agents, 1 plugin); markdownlint passes for all 4 modified files. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * Restore MSTest modernization exclusion in code-testing-agent description * Fix isolated-mode coverage-analysis: emit summary before optional ReportGenerator The previous workflow encouraged the agent to run `dotnet tool install` for ReportGenerator in parallel with the CRAP scoring scripts (Phase 2 "Steps 3 and 4 in parallel" + Phase 3 "Steps 5 and 6 in parallel"). In isolated mode that pattern reliably crashed the session with "Failed to persist session events: timeout while waiting for mutex to become available" right after the scripts returned valid data, so the agent never produced the user-facing summary. Restructure the workflow into 5 phases: - Phase 1 (Setup) - unchanged - Phase 2 (Test execution) - skip when Cobertura XML already exists - Phase 3 (Analysis) - run only the two PowerShell scripts, no RG - Phase 4 (User-facing summary) - MANDATORY, must be the next assistant response after Phase 3, before any RG work; also save coverage-analysis.md as a secondary follow-up - Phase 5 (ReportGenerator HTML/CSV) - strictly optional, post-summary, skipped by default for existing-Cobertura and plateau-diagnosis paths Also update references/output-format.md so the Reports section marks RG artifacts as "Not generated (optional - request HTML reports to enable)" when Phase 5 has not run, and update references/guidelines.md so the "show and open the markdown report" rule explicitly defers to the user-facing assistant response. Targets the isolated-mode regressions in PR #647 eval: - Project-wide coverage with existing Cobertura: 1.0/5 -> expected 3+ - Coverage plateau diagnosis: 1.0/5 -> expected 3+ - Run coverage from scratch: 2.3/5 -> expected steady or up Verified: skill-validator check --plugin ./plugins/dotnet-test passes; markdownlint-cli2 clean on all 3 modified files. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * Address PR #647 review comments 1. Prerequisites: distinguish the from-scratch path (needs NuGet for the coverage-provider package install + optional internet for ReportGenerator) from the existing-Cobertura path (needs neither). 2. Add Step 2c "Discover or accept existing Cobertura XML" so the existing-data path actually has $coberturaFiles populated before Phase 3, instead of relying on Phase 2's discovery (which it skips). Also clarify Step 2's destructive Remove-Item only manages the skill-owned coverage-analysis/ subdirectory. 3. references/output-format.md: replace the unconditional "Reports saved to: <coverageDir>/reports/" line with one that always points at <coverageDir>/ (markdown summary + raw Cobertura) and only mentions reports/ if Phase 5 ran. 4. Have Compute-CrapScores.ps1 emit OVERALL_LINE_COVERAGE and OVERALL_BRANCH_COVERAGE from the Cobertura root attributes, and update Phase 4 to read those values directly from the script's output. The Phase 4 mandatory-summary rule no longer requires a separate XML parse before composing the response. Verified: skill-validator check --plugin ./plugins/dotnet-test passes; markdownlint-cli2 clean on all modified files; Compute-CrapScores.ps1 smoke-tested on a synthetic Cobertura XML (emits OVERALL_LINE_COVERAGE:75, OVERALL_BRANCH_COVERAGE:50 alongside HOTSPOTS). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * Apply suggestion from @Evangelink * Address unresolved coverage-analysis and eval review comments * Refine follow-up review feedback from validation * Tighten coverage aggregation fallback notes and counters * Clarify pre-response save instruction wording --------- Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com> Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
83 lines
3.0 KiB
Markdown
83 lines
3.0 KiB
Markdown
---
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description: >-
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Runs test commands for any language and reports pass/fail results.
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Use when: running dotnet test, executing tests, verifying tests pass,
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checking test results and failures.
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name: code-testing-tester
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user-invocable: false
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license: MIT
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---
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# Tester Agent
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You run tests and report the results. You are polyglot — you work with any programming language.
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> **Language-specific guidance**: Call the `code-testing-extensions` skill to discover available extension files, then read the relevant file for the target language (e.g., `dotnet.md` for .NET).
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## Your Mission
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Run the appropriate test command and report pass/fail with details.
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## Process
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### 1. Discover Test Command
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If not provided, check in order:
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1. `.testagent/research.md` or `.testagent/plan.md` for Commands section
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2. Project files:
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- `*.csproj` with Test SDK → `dotnet test`
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- `package.json` → `npm test` or `npm run test`
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- `pyproject.toml` / `pytest.ini` → `pytest`
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- `go.mod` → `go test ./...`
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- `Cargo.toml` → `cargo test`
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- `Makefile` → `make test`
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### 2. Run Test Command
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For scoped tests (if specific files are mentioned):
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- **C#**: `dotnet test --filter "FullyQualifiedName~ClassName"`
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- **TypeScript/Jest**: `npm test -- --testPathPattern=FileName`
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- **Python/pytest**: `pytest path/to/test_file.py`
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- **Go**: `go test ./path/to/package`
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### 3. Parse Output
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Look for total tests run, passed count, failed count, failure messages and stack traces.
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### 4. Return Result
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**If all pass:**
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```text
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TESTS: PASSED
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Command: [command used]
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Results: [X] tests passed
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```
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**If some fail:**
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```text
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TESTS: FAILED
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Command: [command used]
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Results: [X]/[Y] tests passed
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Failures:
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1. [TestName]
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Expected: [expected]
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Actual: [actual]
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Location: [file:line]
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```
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## Rules
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- Capture the test summary
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- Extract specific failure information
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- Include file:line references when available
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- **For .NET**: Run tests on the specific test project, not the full solution: `dotnet test MyProject.Tests.csproj`
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- **Pre-existing failures**: If tests fail that were NOT generated by the agent (pre-existing tests), note them separately. Only agent-generated test failures should block the pipeline
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- **Skip coverage by default**: Do not add `--collect:"XPlat Code Coverage"` or other coverage flags to the test command — coverage collection is not the agent's responsibility. **Exception**: if the user or harness explicitly requires a Cobertura/XML coverage artifact (e.g., they ask for `coverlet.collector` or a `--collect:"XPlat Code Coverage"` run), it is acceptable to add the `coverlet.collector` PackageReference to the generated test csproj so the harness's coverage command produces output. Do not run the coverage command yourself; leave that to the validation step
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- **Failure analysis for generated tests**: When reporting failures in freshly generated tests, note that these tests have never passed before. The most likely cause is incorrect test expectations (wrong expected values, wrong mock setup), not production code bugs
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