What is the Arrange-Act-Assert (AAA) pattern?

It is a structural standard where tests are divided into three clear phases: Arrange (setup), Act (execution), and Assert (verification) to ensure clarity and consistency.

What is the recommended test distribution in this skill?

The skill follows a pyramid model recommending 60-70% Unit tests, 20-30% Integration tests, and 5-10% End-to-End (E2E) tests for optimal speed and reliability.

Which testing frameworks are supported?

It provides specific patterns and directory structures for Jest (JavaScript/TypeScript), Pytest (Python), and React Testing Library, though the principles apply broadly.

Does it help with test organization?

Yes, it defines specific file naming conventions (like *.test.ts or test_*.py) and directory structures for both co-located and separate test folders.

How does this skill handle code coverage?

It suggests specific targets based on code type: 90% for business logic, 95% for utility functions, and 70% for UI components, prioritizing quality over raw percentage.

Testing Strategies

Name: Testing Strategies
Author: rsmdt

byrsmdt

•

129

セキュリティとテスト

Implements standardized testing architectures using test pyramid principles, coverage targets, and framework-specific patterns for modern development.

概要

The Testing Strategies skill provides Claude with a comprehensive framework for designing and implementing high-quality test suites. It focuses on the 'test pyramid' model to ensure an optimal balance between fast unit tests, reliable integration tests, and critical end-to-end journeys. By enforcing proven patterns like Arrange-Act-Assert (AAA), test isolation, and behavior-driven verification, this skill helps development teams reduce technical debt, eliminate flaky tests, and maintain clear coverage targets across various code types, including specific implementations for Jest, Pytest, and React Testing Library.

主な機能

Test pyramid distribution guidelines (60% Unit, 30% Integration, 10% E2E)
Granular coverage targets for business logic, utilities, and UI components
Standardized Arrange-Act-Assert (AAA) test structure for readability
Best practices for test isolation and descriptive naming conventions
129 GitHub stars
Framework-specific patterns for Jest (TypeScript) and Pytest (Python)

ユースケース

Reviewing existing test suites to identify coverage gaps and architectural weaknesses
Refactoring brittle, implementation-heavy tests into resilient behavior-based tests
Designing a scalable testing architecture for a new feature or greenfield project

概要

主な機能

Test pyramid distribution guidelines (60% Unit, 30% Integration, 10% E2E)
Granular coverage targets for business logic, utilities, and UI components
Standardized Arrange-Act-Assert (AAA) test structure for readability
Best practices for test isolation and descriptive naming conventions
129 GitHub stars
Framework-specific patterns for Jest (TypeScript) and Pytest (Python)

ユースケース

Reviewing existing test suites to identify coverage gaps and architectural weaknesses
Refactoring brittle, implementation-heavy tests into resilient behavior-based tests
Designing a scalable testing architecture for a new feature or greenfield project