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testing

Guide software testing with a test-first workflow, from small unit checks to complete application flows. Apply consistent test structure across supported frameworks, keep tests independent, and use meaningful checks when measuring coverage.

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Testing strategies and methodologies including TDD, E2E testing, and multi-framework support

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Good for

  • Writing tests before implementing a feature
  • Organizing unit, integration, and end-to-end tests
  • Reviewing mocks and test independence
  • Checking coverage with meaningful assertions

Files included (1)

  • SKILL.md1.0 KB

SKILL.md (original)

Review the instructions the agent will receive before you install.

Testing Skill

Comprehensive testing guidance covering:

  • TDD Workflow: Red → Green → Refactor cycle with practical examples
  • Test Organization: Unit / Integration / E2E test structure
  • Framework Support: pytest, Jest, JUnit5, xUnit, Google Test
  • Mock Strategies: Only mock external boundaries, not internal logic
  • Coverage Requirements: 80%+ with meaningful assertions

When Loaded

This skill is automatically injected when working with:

  • /cc-best:dev — Implementation with tests
  • tdd-guide agent — Test-driven development guidance
  • build-error-resolver agent — Fixing test failures

Key Rules

  1. Tests first — Write failing test before implementation
  2. AAA pattern — Arrange, Act, Assert in every test
  3. No shared mutable state — Each test is independent
  4. Descriptive names — test_<feature>_<scenario>_<expected>

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