jest-globals

Upstream: https://github.com/jestjs/jest/tree/v28.0.0/packages/jest-globals

This package exports the "global" methods used by Jest (describe, it, test, expect, beforeEach, etc.). See the Jest documentation for full API docs.

Importing JestGlobals only works inside a running Jest test environment — jest-runtime intercepts the require and injects the live globals. Required outside that path, the module errors immediately.