概要
This skill provides comprehensive guidance for implementing Jest unit testing within the CUI ecosystem, ensuring consistency across configuration, file organization, and testing patterns. It helps developers maintain high code quality by enforcing an 80% coverage threshold, providing specific strategies for mocking Lit components and DevUI dependencies, and promoting the Arrange-Act-Assert (AAA) pattern for readable, isolated tests. It is essential for developers looking to standardize their frontend testing workflow and ensure CI/CD compliance.