jest-extended

jest-extended is a library that provides a comprehensive set of additional Jest matchers (e.g., `toBeOneOf`, `toIncludeAllMembers`) to make test assertions more expressive and readable. It is designed for developers using the Jest testing framework who want to write cleaner, more intuitive tests without reinventing common assertion logic. Its value lies in reducing boilerplate and improving test clarity, especially for complex data structures and edge cases.