test-detect

What this skill does

# Test Detect

Automatically detect the testing framework in the current project and run the right tests.

## Workflow

### Step 1: Detect the testing framework

Check for these files in order (first match wins):

| Check | Framework | Run Command |
|-------|-----------|-------------|
| `vitest.config.*` exists OR `vitest` in devDeps | **Vitest** | `npx vitest run` |
| `jest.config.*` exists OR `jest` in devDeps | **Jest** | `npx jest` |
| `playwright.config.*` exists | **Playwright** | `npx playwright test` |
| `cypress.config.*` exists | **Cypress** | `npx cypress run` |
| `pytest.ini` or `conftest.py` or `pyproject.toml` with `[tool.pytest]` | **pytest** | `python -m pytest` |
| `go.mod` exists | **Go test** | `go test ./...` |
| `Cargo.toml` exists | **Rust/cargo** | `cargo test` |
| `mix.exs` exists | **ExUnit** | `mix test` |
| `Gemfile` with `rspec` | **RSpec** | `bundle exec rspec` |
| `package.json` has `scripts.test` | **npm test** | `npm test` |

Report the detected framework before proceeding.

### Step 2: Parse arguments

Check `$ARGUMENTS` for the mode:

- **No arguments** or **"all"**: Run the full test suite (Step 3)
- **File path** (e.g., `src/auth/login.ts`): Run tests for that file (Step 4)
- **"generate" + file path** (e.g., `generate src/utils.ts`): Generate tests (Step 5)

### Step 3: Run full test suite

Run the detected test command. After completion:

- Report total tests, passed, failed, skipped
- If tests fail, show the first 3 failure messages with file:line references
- Suggest: "Run `/test-detect <failing-file>` to investigate a specific failure"

### Step 4: Run tests for a specific file

Given a source file path, find its test file:

**Search strategy** (try in order):
1. `__tests__/<filename>.test.<ext>` (Jest convention)
2. `<filename>.test.<ext>` (co-located)
3. `<filename>.spec.<ext>` (alternative convention)
4. `test/<filename>_test.<ext>` (Go/Python convention)
5. `tests/test_<filename>.<ext>` (pytest convention)
6. `<filename>_test.go` (Go convention)

Use Glob to find matches. If found, run only that test file:

| Framework | Command |
|-----------|---------|
| Vitest | `npx vitest run <test-file>` |
| Jest | `npx jest <test-file>` |
| Playwright | `npx playwright test <test-file>` |
| pytest | `python -m pytest <test-file>` |
| Go | `go test -run <TestName> ./<package>/` |
| Cargo | `cargo test <test_name>` |

If no test file found, ask: "No tests found for this file. Want me to generate them? Run `/test-detect generate <file>`"

### Step 5: Generate tests

Read the source file and analyze:
1. Identify all exported functions/classes/components
2. Determine the appropriate test patterns for the framework
3. Generate a test file with:
   - Import statements
   - `describe` block per function/class
   - `it`/`test` blocks covering: happy path, edge cases, error cases
   - Framework-appropriate assertions and mocking

**Save to the conventional location** for the detected framework:
- Jest/Vitest: `__tests__/<filename>.test.<ext>` or `<filename>.test.<ext>` (match existing convention)
- pytest: `tests/test_<filename>.py`
- Go: `<filename>_test.go` (same directory)
- RSpec: `spec/<filename>_spec.rb`

Show the generated file path and ask if the user wants to run the new tests.

## Tips

- If multiple frameworks are detected (e.g., Vitest for unit tests + Playwright for e2e), mention both and default to the unit test framework
- For monorepos, detect from the closest config file to the current directory
- If `package.json` has both `test` and `test:unit`/`test:e2e` scripts, prefer the specific one when context is clear