AgentSkillsCN

test-driven-development

TDD 工作流、红绿重构与测试框架（PHPUnit、Jest）的最佳实践。

SKILL.md
--- frontmatter
name: test-driven-development
description: TDD workflows, Red-Green-Refactor, and testing frameworks (PHPUnit, Jest).

Test-Driven Development (TDD)

When to use this skill

  • •Starting a new complex feature.
  • •Fixing a bug (write test to reproduce first).
  • •Refactoring critical paths.

1. The Cycle (Red-Green-Refactor)

  1. •Red: Write a failing test that defines the desired behavior.
  2. •Green: Write the minimum code to pass the test.
  3. •Refactor: Clean up the code while keeping tests green.

2. Tools & Config

  • •PHP: Use Pest or PHPUnit.
    • •php artisan test (Laravel).
  • •JS/TS: Use Jest or Vitest.
    • •npm test.

3. Best Practices

  • •Arrangement: Arrange-Act-Assert structure in every test.
  • •Naming: it_should_validate_email or test_email_validation.
  • •Speed: Unit tests must run in milliseconds. Mock external services (Stripe, DB) if they are slow.