unit-test-controller-layer

react-modernization

camoneart

Upgrade React applications to latest versions, migrate from class components to hooks, and adopt concurrent features. Use when modernizing React codebases, migrating to React Hooks, or upgrading to latest React versions.

react-frontend

williamzujkowski

React frontend standards covering hooks (useState, useEffect, useContext, custom hooks), state management (Context API, Redux, Zustand), performance optimization (memoization, lazy loading, code splitting), testing with React Testing Library, and accessibility (WCAG 2.1, ARIA) for modern SPAs

javascript-coding-standards

williamzujkowski

JavaScript/ES6+ coding standards following Airbnb guidelines, modern patterns, React best practices, and comprehensive Jest testing. Use for JavaScript projects requiring clean, maintainable, production-ready code with modern tooling.

react-modernization

wshobson

Upgrade React applications to latest versions, migrate from class components to hooks, and adopt concurrent features. Use when modernizing React codebases, migrating to React Hooks, or upgrading to latest React versions.

cloudflare-workers

mrgoonie

Comprehensive guide for building serverless applications with Cloudflare Workers. Use when developing Workers, configuring bindings, implementing runtime APIs, testing Workers, using Wrangler CLI, deploying to production, or building edge functions with JavaScript/TypeScript/Python/Rust.

unit-test-boundary-conditions

giuseppe-trisciuoglio

Edge case and boundary testing patterns for unit tests. Testing minimum/maximum values, null cases, empty collections, and numeric precision. Pure JUnit 5 unit tests. Use when ensuring code handles limits and special cases correctly.

unit-test-caching

giuseppe-trisciuoglio

Unit tests for caching behavior using Spring Cache annotations (@Cacheable, @CachePut, @CacheEvict). Use when validating cache configuration and cache hit/miss scenarios.

unit-test-json-serialization

giuseppe-trisciuoglio

Unit tests for JSON serialization/deserialization with Jackson and @JsonTest. Use when validating JSON mapping, custom serializers, and date format handling.

unit-test-application-events

giuseppe-trisciuoglio

Testing Spring application events (ApplicationEvent) with @EventListener and ApplicationEventPublisher. Test event publishing, listening, and async event handling in Spring Boot applications. Use when validating event-driven workflows in your Spring Boot services.

unit-test-utility-methods

giuseppe-trisciuoglio

Unit tests for utility/helper classes and static methods. Test pure functions and helper logic. Use when validating utility code correctness.

unit-test-exception-handler

giuseppe-trisciuoglio

Unit tests for @ExceptionHandler and @ControllerAdvice for global exception handling. Use when validating error response formatting and HTTP status codes.

unit-test-parameterized

giuseppe-trisciuoglio

Parameterized testing patterns with @ParameterizedTest, @ValueSource, @CsvSource. Run single test method with multiple input combinations. Use when testing multiple scenarios with similar logic.