types-testing/dist/src/definitions/expect-type.d.ts

Test TypeScript types at test runner runtime - Works seamlessly with Jest, Vitest, and Bun.

import type { NotProvided } from './__internal/not-provided';
import type { Assertions } from './assertions';
/**
 * Returns assertion functions for checking types.
 */
export type ExpectType = 
/**
 * @template Received The received type.
 * @param received The received value (only the value type will be used).
 * @returns Set of assertions object.
 */
<Received = NotProvided>(received?: Received) => Assertions<Received>;