@fast-check/jest/lib/internals/TestBuilder.d.ts

Property based testing for Jest based on fast-check

import type { Parameters as FcParameters } from 'fast-check';
import type { ArbitraryTuple, Prop, ArbitraryRecord, PropRecord, JestExtra, FcExtra } from './types.js';
/**
 * Revamped {it,test} with added `.prop`
 */
export type FastCheckItBuilder<T> = T & ('each' extends keyof T ? T & {
    prop: <Ts, TsParameters extends Ts = Ts>(arbitraries: Ts extends [any] | any[] ? ArbitraryTuple<Ts> : ArbitraryRecord<Ts>, params?: FcParameters<TsParameters>) => (testName: string, prop: Ts extends [any] | any[] ? Prop<Ts> : PropRecord<Ts>, timeout?: number) => void;
} : T) & {
    [K in keyof Omit<T, 'each'>]: FastCheckItBuilder<T[K]>;
};
/**
 * Build the enriched version of {it,test}, the one with added `.prop`
 */
export declare function buildTest<T extends (...args: any[]) => any>(testFn: T, jest: JestExtra, fc: FcExtra): FastCheckItBuilder<T>;