fast-check/lib/esm/check/arbitrary/SetArbitrary.js

Property based testing framework for JavaScript (like QuickCheck)

import { ArrayArbitrary } from './ArrayArbitrary.js';
function subArrayContains(tab, upperBound, includeValue) {
    for (let idx = 0; idx < upperBound; ++idx) {
        if (includeValue(tab[idx]))
            return true;
    }
    return false;
}
function swap(tab, idx1, idx2) {
    const temp = tab[idx1];
    tab[idx1] = tab[idx2];
    tab[idx2] = temp;
}
export function buildCompareFilter(compare) {
    return (tab) => {
        let finalLength = tab.length;
        for (let idx = tab.length - 1; idx !== -1; --idx) {
            if (subArrayContains(tab, idx, (t) => compare(t.value_, tab[idx].value_))) {
                --finalLength;
                swap(tab, idx, finalLength);
            }
        }
        return tab.slice(0, finalLength);
    };
}
function set(arb, aLength, bLength, compareFn) {
    const minLength = bLength == null || typeof bLength !== 'number' ? 0 : aLength;
    const maxLength = aLength == null || typeof aLength !== 'number' ? 10 : typeof bLength === 'number' ? bLength : aLength;
    const compare = compareFn != null
        ? compareFn
        : typeof bLength === 'function'
            ? bLength
            : typeof aLength === 'function'
                ? aLength
                : (a, b) => a === b;
    const arrayArb = new ArrayArbitrary(arb, minLength, maxLength, buildCompareFilter(compare));
    if (minLength === 0)
        return arrayArb;
    return arrayArb.filter((tab) => tab.length >= minLength);
}
export { set };