/test — Test Generation

Generate tests for specified code. Detects the project's test framework automatically
and matches existing test patterns.

Step 0 — Parse Arguments

From the invocation args, extract:

• target: File path, function name, or component to test
• --framework: Override test framework detection (mocha, jest, vitest, pytest)
• --unit-only: Skip integration test generation

If no target specified, use recently modified files:

git diff --name-only HEAD~1

Step 1 — Detect Test Infrastructure

Scan the project for existing test setup:

1. Check package.json for test scripts and dependencies (mocha, jest, vitest, chai)
2. Find existing test files: Glob("**/*.test.*") and Glob("**/*.spec.*")
3. Read 1-2 existing test files to match style (imports, describe/it patterns, assertion style)
4. Identify test directory convention (test/, tests/, co-located)

Step 2 — Triage

Fast path (inline generation):

• Single function or small file (< 100 lines)
• Clear inputs/outputs, no complex dependencies
• Proceed to Step 3a

Agent path (dispatch):

• Complex component with multiple methods
• Requires mocking strategy decisions
• Integration tests needed across modules
• Proceed to Step 3b

Step 3a — Inline Test Generation

1. Read the target file completely
2. Identify testable units: exported functions, public methods, API endpoints
3. Generate tests matching the project's existing style:
   • Happy path for each function
   • Edge cases: empty input, null, boundary values
   • Error cases: invalid input, missing dependencies
4. Write the test file to the conventional location

Step 3b — Agent Dispatch

Use the Agent tool:
  subagent_type: "qa-analyst"
  prompt: "Create a comprehensive test plan and generate tests for: [target].
           Existing test framework: [detected framework].
           Existing test patterns: [patterns found in Step 1].
           Match the project's test style."

Step 4 — Verify

After tests are written:

1. Run the new tests to verify they pass
2. Report coverage if possible
3. List any functions/paths not covered with rationale