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mk:testing

Use when writing tests, running validation scripts, or (in TDD mode) enforcing red-green-refactor cycle. Activates during Phase 2 (Test) and Phase 3 (Build). NOT for coverage gap mapping (see mk:nyquist); NOT for sprint contract negotiation (see mk:sprint-contract).

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See how to install

Files included (5)

  • SKILL.md2.7 KB
  • references/e2e-best-practices.md3.5 KB
  • references/red-green-refactor.md5.5 KB
  • references/validation-scripts.md3.8 KB
  • references/visual-qa.md4.1 KB

SKILL.md (original)

Review the instructions the agent will receive before you install.

Testing Toolkit

Reference guides for testing: TDD red-green-refactor, validation scripts, and visual QA.

When to Use

  • During Phase 2 (Test) for writing tests — failing tests first in TDD mode (--tdd / MEOWKIT_TDD=1), or any-order tests in default mode
  • During Phase 3 (Build) for verifying implementation
  • When the tester agent needs testing patterns
  • For visual QA testing of web applications

Workflow Integration

Operates in Phase 2 (Test) and Phase 3 (Build). Output supports the tester agent.

In TDD mode the cycle is RED → GREEN → REFACTOR (failing tests required before implementation). In default mode (TDD off), tests may be written before, alongside, or after implementation — the developer chooses.

References

ReferenceWhen to loadContent
red-green-refactor.mdPhase 2-3TDD cycle, test-first rules, refactoring guidelines
validation-scripts.mdAfter code changesRunning validation scripts, interpreting results
visual-qa.mdUI testingBrowser-based visual QA, screenshot comparison, responsive testing
e2e-best-practices.mdWhen creating E2E testsTool preference, locator strategy, wait patterns, POM, flaky quarantine, success metrics

Gotchas

  • Mocks hiding integration failures: All mocked tests pass but real service calls fail → Use integration tests for critical paths; mock only external third-party services
  • Test coverage metric gamed by trivial assertions: 100% coverage with expect(true).toBe(true) → Measure mutation testing score alongside coverage; flag tests with zero assertions
  • Vue-specific test design/review: for designing or auditing Vitest + Vue Test Utils tests (components, composables, Pinia, router, Suspense, Teleport) → use mk:vue-testing-best-practices (advisory/review only; this skill still owns running tests + TDD)

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