Does this skill support both Jest and Vitest?

Yes, it includes detailed configuration and implementation patterns for both Jest and Vitest testing frameworks.

Can I use this for frontend component testing?

Absolutely, it provides patterns compatible with React, Vue, and other frontend frameworks using Testing Library.

Does it include code coverage configuration?

Yes, it provides setup examples for collecting coverage metrics and defining thresholds to maintain code quality standards.

How does it handle external API calls during tests?

It includes specific patterns for mocking the global fetch API, module mocking, and using dependency injection to isolate code from external services.

JavaScript Testing Patterns

Name: JavaScript Testing Patterns
Author: arthur0824hao

byarthur0824hao

Security & Testing

Implements robust testing architectures and best practices using Jest, Vitest, and Testing Library for JavaScript and TypeScript projects.

About

This skill provides comprehensive guidance for setting up and maintaining high-quality test suites in modern JavaScript and TypeScript environments. It offers standardized patterns for unit, integration, and end-to-end testing, covering critical aspects like mocking external dependencies, handling asynchronous operations, and implementing Test-Driven Development (TDD). By leveraging industry-standard tools like Jest and Vitest, it helps developers ensure code reliability, catch bugs early, and maintain high code coverage through structured, maintainable testing workflows.

Key Features

Asynchronous testing strategies for promises and network operations
Comprehensive coverage threshold and reporter setup
Dependency Injection (DI) patterns for isolated unit testing
Advanced mocking patterns for modules, global APIs, and dependencies
Standardized Jest and Vitest configuration templates for JS/TS
0 GitHub stars

Use Cases

Implementing Test-Driven Development (TDD) workflows in existing codebases
Mocking complex third-party services and APIs for integration testing
Bootstrapping testing infrastructure for new React, Vue, or Node.js projects

About

Key Features

Asynchronous testing strategies for promises and network operations
Comprehensive coverage threshold and reporter setup
Dependency Injection (DI) patterns for isolated unit testing
Advanced mocking patterns for modules, global APIs, and dependencies
Standardized Jest and Vitest configuration templates for JS/TS
0 GitHub stars

Use Cases

Implementing Test-Driven Development (TDD) workflows in existing codebases
Mocking complex third-party services and APIs for integration testing
Bootstrapping testing infrastructure for new React, Vue, or Node.js projects