fast-check
Version:
Property based testing framework for JavaScript (like QuickCheck)
46 lines (45 loc) • 2.73 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.uniqueArray = uniqueArray;
const ArrayArbitrary_js_1 = require("./_internals/ArrayArbitrary.js");
const MaxLengthFromMinLength_js_1 = require("./_internals/helpers/MaxLengthFromMinLength.js");
const CustomEqualSet_js_1 = require("./_internals/helpers/CustomEqualSet.js");
const StrictlyEqualSet_js_1 = require("./_internals/helpers/StrictlyEqualSet.js");
const SameValueSet_js_1 = require("./_internals/helpers/SameValueSet.js");
const SameValueZeroSet_js_1 = require("./_internals/helpers/SameValueZeroSet.js");
function buildUniqueArraySetBuilder(constraints) {
if (typeof constraints.comparator === 'function') {
if (constraints.selector === undefined) {
const comparator = constraints.comparator;
const isEqualForBuilder = (nextA, nextB) => comparator(nextA.value_, nextB.value_);
return () => new CustomEqualSet_js_1.CustomEqualSet(isEqualForBuilder);
}
const comparator = constraints.comparator;
const selector = constraints.selector;
const refinedSelector = (next) => selector(next.value_);
const isEqualForBuilder = (nextA, nextB) => comparator(refinedSelector(nextA), refinedSelector(nextB));
return () => new CustomEqualSet_js_1.CustomEqualSet(isEqualForBuilder);
}
const selector = constraints.selector || ((v) => v);
const refinedSelector = (next) => selector(next.value_);
switch (constraints.comparator) {
case 'IsStrictlyEqual':
return () => new StrictlyEqualSet_js_1.StrictlyEqualSet(refinedSelector);
case 'SameValueZero':
return () => new SameValueZeroSet_js_1.SameValueZeroSet(refinedSelector);
case 'SameValue':
case undefined:
return () => new SameValueSet_js_1.SameValueSet(refinedSelector);
}
}
/**@__NO_SIDE_EFFECTS__*/function uniqueArray(arb, constraints = {}) {
const minLength = constraints.minLength !== undefined ? constraints.minLength : 0;
const maxLength = constraints.maxLength !== undefined ? constraints.maxLength : MaxLengthFromMinLength_js_1.MaxLengthUpperBound;
const maxGeneratedLength = (0, MaxLengthFromMinLength_js_1.maxGeneratedLengthFromSizeForArbitrary)(constraints.size, minLength, maxLength, constraints.maxLength !== undefined);
const depthIdentifier = constraints.depthIdentifier;
const setBuilder = buildUniqueArraySetBuilder(constraints);
const arrayArb = new ArrayArbitrary_js_1.ArrayArbitrary(arb, minLength, maxGeneratedLength, maxLength, depthIdentifier, setBuilder, []);
if (minLength === 0)
return arrayArb;
return arrayArb.filter((tab) => tab.length >= minLength);
}