dotnet-test
Skills and agents for running, generating, analyzing, migrating, and improving .NET tests across all major frameworks (MSTest, xUnit, NUnit, TUnit) and platforms (VSTest, Microsoft.Testing.Platform).
When to use this plugin
- Run tests — execute
dotnet test with automatic platform/framework detection and filter syntax
- Generate tests — scaffold comprehensive unit tests for any language via a multi-agent pipeline
- Migrate tests — upgrade MSTest v1/v2 → v3 → v4, xUnit v2 → v3, or VSTest → Microsoft.Testing.Platform
- Audit test quality — detect anti-patterns, test smells, assertion gaps, and coverage risks
- Improve testability — find static dependencies, generate wrappers, and migrate call sites to injectable abstractions
- Measure coverage — collect code coverage, compute CRAP scores, and surface risk hotspots
Skills
Test execution
| Skill |
Description |
| run-tests |
Run .NET tests via dotnet test with platform/framework auto-detection and filter support |
| mtp-hot-reload |
Rapid test-fix iteration using MTP hot reload (edit code → re-run without rebuilding) |
Test generation
| Skill |
Description |
| code-testing-agent |
Multi-agent pipeline (Research → Plan → Implement → Build → Test → Fix → Lint) that generates tests for any language |
| writing-mstest-tests |
Best practices and modern APIs for writing MSTest 3.x/4.x tests |
Test migration
| Skill |
Description |
| migrate-mstest-v1v2-to-v3 |
Upgrade MSTest v1 (assembly refs) or v2 (NuGet 1.x–2.x) to v3 |
| migrate-mstest-v3-to-v4 |
Upgrade MSTest v3 to v4 — handles all source and behavioral breaking changes |
| migrate-xunit-to-xunit-v3 |
Upgrade xUnit.net v2 to v3 |
| migrate-vstest-to-mtp |
Migrate from VSTest runner to Microsoft.Testing.Platform |
Test quality & analysis
| Skill |
Description |
| test-anti-patterns |
Quick pragmatic scan for ~15 common test quality issues with severity ranking |
| test-smell-detection |
Deep formal audit using academic test smell taxonomy (19 smell types) |
| assertion-quality |
Measure assertion variety and depth — find shallow tests that barely verify anything |
| test-gap-analysis |
Pseudo-mutation analysis to find test blind spots that coverage numbers miss |
| test-tagging |
Tag tests with standardized traits (smoke, regression, boundary, critical-path, etc.) |
Coverage & risk
| Skill |
Description |
| coverage-analysis |
Project-wide code coverage collection with CRAP score computation and risk hotspot reporting |
| crap-score |
Calculate CRAP (Change Risk Anti-Patterns) scores for individual methods, classes, or files |
Testability improvement
| Skill |
Description |
| detect-static-dependencies |
Scan C# code for hard-to-test statics (DateTime.Now, File.*, HttpClient, etc.) |
| generate-testability-wrappers |
Generate wrapper interfaces or guide adoption of built-in abstractions (TimeProvider, IFileSystem) |
| migrate-static-to-wrapper |
Bulk-replace static call sites with injected wrapper calls and add constructor injection |
Reference data (loaded by other skills)
| Skill |
Description |
| code-testing-extensions |
Language-specific guidance files loaded by the code-testing pipeline |
| platform-detection |
Detect VSTest vs MTP and identify the test framework from project files |
| filter-syntax |
Test filter syntax reference for VSTest and MTP across all frameworks |
| dotnet-test-frameworks |
Framework detection patterns, assertion APIs, skip annotations, and lifecycle methods |
Agents
User-facing agents
These are the entry-point agents you invoke directly:
| Agent |
Purpose |
| code-testing-generator |
Orchestrates the full test generation pipeline (research → plan → implement → build → test → fix → lint) |
| test-migration |
Auto-detects framework/version and routes to the correct migration skill |
| test-quality-auditor |
Runs multi-skill audit pipelines for comprehensive test suite assessment |
| testability-migration |
End-to-end testability improvement: detect → generate wrappers → migrate call sites |
Internal subagents
These are pipeline stages invoked automatically by the agents above (user-invocable: false). You do not need to call them directly:
| Agent |
Called by |
Purpose |
| code-testing-researcher |
code-testing-generator |
Analyzes codebase structure, testing patterns, and testability |
| code-testing-planner |
code-testing-generator |
Creates phased test implementation plans from research findings |
| code-testing-implementer |
code-testing-generator |
Implements one phase from the plan, runs build-test-fix cycles |
| code-testing-builder |
code-testing-implementer |
Runs build/compile commands and reports results |
| code-testing-tester |
code-testing-implementer |
Runs test commands and reports pass/fail results |
| code-testing-fixer |
code-testing-implementer |
Fixes compilation errors in source or test files |
| code-testing-linter |
code-testing-implementer |
Runs code formatting and linting |
Prerequisites
- .NET SDK installed (
dotnet on PATH)
- A project with an existing test framework (MSTest, xUnit, NUnit, or TUnit) for execution and analysis skills
Jan Krivanek