Can I use this skill with TypeScript projects?

Yes, the skill includes specific patterns and boilerplate for implementing type-safe custom matchers and TypeScript-compatible test configurations.

Does it support complex mocking for modern JavaScript?

Absolutely, it covers advanced mocking techniques for ES6 classes, module factories, and dynamic return values for sophisticated dependency isolation.

How does this help with slow test suites?

It provides configurations for parallel execution, sharding, and caching strategies to significantly reduce test execution time in local and CI/CD environments.

Can I customize code coverage reports?

Yes, the skill provides templates for setting granular coverage thresholds per directory and implementing custom coverage reporters for external webhooks.

Jest Advanced Mastery

Name: Jest Advanced Mastery
Author: TheBushidoCollective

byTheBushidoCollective

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보안 및 테스팅

Implements sophisticated testing patterns, custom matchers, and performance optimizations for complex Jest test suites.

소개

The Jest Advanced skill empowers developers to scale their testing infrastructure with high-level features like custom matchers, type-safe assertions, and parameterized test suites. It provides ready-to-use patterns for complex mocking scenarios, advanced coverage configurations, and performance-tuning techniques such as test sharding and parallel execution, ensuring that even the most complex codebases maintain high quality and fast feedback loops within Claude Code.

주요 기능

Performance Optimization (Max Workers, Sharding, and Caching)
39 GitHub stars
Custom Matchers (Sync, Async, and TypeScript-ready)
Sophisticated Mocking for ES6 Classes and Module Factories
Advanced Coverage Configuration and Custom Reporters
Parameterized Testing with test.each (Arrays, Objects, and Templates)

사용 사례

Creating domain-specific testing languages via custom expect matchers.
Scaling test suites for large monorepos with performance bottlenecks.
Automating repetitive test scenarios using data-driven parameterized tests.

소개

주요 기능

Performance Optimization (Max Workers, Sharding, and Caching)
39 GitHub stars
Custom Matchers (Sync, Async, and TypeScript-ready)
Sophisticated Mocking for ES6 Classes and Module Factories
Advanced Coverage Configuration and Custom Reporters
Parameterized Testing with test.each (Arrays, Objects, and Templates)

사용 사례

Creating domain-specific testing languages via custom expect matchers.
Scaling test suites for large monorepos with performance bottlenecks.
Automating repetitive test scenarios using data-driven parameterized tests.