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Validates test coverage and quality by checking behavior focus, identifying gaps, and ensuring >80% statement coverage. Use when task file is in testing/ directory and requires test validation before marking complete. Adds minimal tests for genuinely missing edge cases.

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SKILL.md

name testing
description Validates test coverage and quality by checking behavior focus, identifying gaps, and ensuring >80% statement coverage. Use when task file is in testing/ directory and requires test validation before marking complete. Adds minimal tests for genuinely missing edge cases.

Testing

Given task file path .plans/<project>/testing/NNN-task.md:

Process

Use TodoWrite to track testing validation:

☐ Validate existing tests (behavior-focused?)
☐ Check coverage of Validation checklist items
☐ Identify gaps (empty/null, boundaries, errors)
☐ Add tests for genuine gaps
☐ Run coverage (>80% statements, >75% branches)
☐ Update task status
  1. Validate existing tests - behavior-focused? Covers Validation?
  2. Identify gaps - empty/null inputs, boundaries, errors, race conditions, security
  3. Add minimal tests if genuinely missing
  4. Run coverage - verify >80% statements, >75% branches
  5. Update task status using Edit tool:
    • Find: **Status:** [current status]
    • Replace: **Status:** READY_FOR_REVIEW
  6. Append testing notes using Edit tool (add to end of task file):
    **testing:**
    Validated [N] tests (behavior-focused)
    
    Added [M] edge cases:
    - [Test description]
    - [Test description]
    
    Test breakdown: Unit: X | Integration: Y | Total: Z
    Coverage: Statements: XX% | Branches: XX% | Functions: XX% | Lines: XX%
    Full suite: XXX/XXX passing
    Working Result verified: ✓ [description]
    
  7. Report completion

Test Quality

Good: expect(response.status).toBe(401) (tests behavior) Bad: expect(bcrypt.compare).toHaveBeenCalled() (tests implementation)

Granularity: Pure functions → Unit | DB/API → Integration | Critical workflows → E2E (rare)

Failure Handling

If tests fail or coverage <80%:

  • Fix test scenarios first
  • If code bug found:
    • Update status using Edit tool: Find **Status:** [current status] → Replace **Status:** NEEDS_FIX
    • Append notes using Edit tool (append to end of file):
      **testing:**
      Found issues:
      - [Specific issue]
      - [Specific issue]
      
      Requires code fixes. Moving back to implementation.
      

Completion

When testing is complete (status updated to READY_FOR_REVIEW or NEEDS_FIX):

  • Report: ✅ Testing complete. Status: [STATUS]