How to use sparseArrayNoTrailingHole method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

sparseArray.ts

Source:sparseArray.ts Github

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1import { Arbitrary } from '../check/arbitrary/definition/Arbitrary';2import { Array, safeMap, safeSlice } from '../utils/globals';3import { tuple } from './tuple';4import { uniqueArray } from './uniqueArray';5import { restrictedIntegerArbitraryBuilder } from './_internals/builders/RestrictedIntegerArbitraryBuilder';6import { DepthIdentifier } from './_internals/helpers/DepthContext';7import {8 maxGeneratedLengthFromSizeForArbitrary,9 MaxLengthUpperBound,10 SizeForArbitrary,11} from './_internals/helpers/MaxLengthFromMinLength';12const safeMathMin = Math.min;13const safeMathMax = Math.max;14const safeArrayIsArray = Array.isArray;15const safeObjectEntries = Object.entries;16/**17 * Constraints to be applied on {@link sparseArray}18 * @remarks Since 2.13.019 * @public20 */21export interface SparseArrayConstraints {22 /**23 * Upper bound of the generated array size (maximal size: 4294967295)24 * @remarks Since 2.13.025 */26 maxLength?: number;27 /**28 * Lower bound of the number of non-hole elements29 * @remarks Since 2.13.030 */31 minNumElements?: number;32 /**33 * Upper bound of the number of non-hole elements34 * @remarks Since 2.13.035 */36 maxNumElements?: number;37 /**38 * When enabled, all generated arrays will either be the empty array or end by a non-hole39 * @remarks Since 2.13.040 */41 noTrailingHole?: boolean;42 /**43 * Define how large the generated values should be (at max)44 * @remarks Since 2.22.045 */46 size?: SizeForArbitrary;47 /**48 * When receiving a depth identifier, the arbitrary will impact the depth49 * attached to it to avoid going too deep if it already generated lots of items.50 *51 * In other words, if the number of generated values within the collection is large52 * then the generated items will tend to be less deep to avoid creating structures a lot53 * larger than expected.54 *55 * For the moment, the depth is not taken into account to compute the number of items to56 * define for a precise generate call of the array. Just applied onto eligible items.57 *58 * @remarks Since 2.25.059 */60 depthIdentifier?: DepthIdentifier | string;61}62/** @internal */63function extractMaxIndex(indexesAndValues: [number, unknown][]) {64 let maxIndex = -1;65 for (let index = 0; index !== indexesAndValues.length; ++index) {66 maxIndex = safeMathMax(maxIndex, indexesAndValues[index][0]);67 }68 return maxIndex;69}70/** @internal */71function arrayFromItems<T>(length: number, indexesAndValues: [number, T][]) {72 const array = Array<T>(length);73 for (let index = 0; index !== indexesAndValues.length; ++index) {74 const it = indexesAndValues[index];75 if (it[0] < length) array[it[0]] = it[1];76 }77 return array;78}79/**80 * For sparse arrays of values coming from `arb`81 * @param arb - Arbitrary used to generate the values inside the sparse array82 * @param constraints - Constraints to apply when building instances83 * @remarks Since 2.13.084 * @public85 */86export function sparseArray<T>(arb: Arbitrary<T>, constraints: SparseArrayConstraints = {}): Arbitrary<T[]> {87 const {88 size,89 minNumElements = 0,90 maxLength = MaxLengthUpperBound,91 maxNumElements = maxLength, // cap maxNumElements to maxLength92 noTrailingHole,93 depthIdentifier,94 } = constraints;95 const maxGeneratedNumElements = maxGeneratedLengthFromSizeForArbitrary(96 size,97 minNumElements,98 maxNumElements,99 constraints.maxNumElements !== undefined100 );101 const maxGeneratedLength = maxGeneratedLengthFromSizeForArbitrary(102 size,103 maxGeneratedNumElements,104 maxLength,105 constraints.maxLength !== undefined106 );107 if (minNumElements > maxLength) {108 throw new Error(`The minimal number of non-hole elements cannot be higher than the maximal length of the array`);109 }110 if (minNumElements > maxNumElements) {111 throw new Error(`The minimal number of non-hole elements cannot be higher than the maximal number of non-holes`);112 }113 const resultedMaxNumElements = safeMathMin(maxNumElements, maxLength);114 const resultedSizeMaxNumElements = constraints.maxNumElements !== undefined || size !== undefined ? size : '=';115 const maxGeneratedIndexAuthorized = safeMathMax(maxGeneratedLength - 1, 0); // just preventing special case for maxGeneratedLength=0116 const maxIndexAuthorized = safeMathMax(maxLength - 1, 0); // just preventing special case for maxLength=0117 const sparseArrayNoTrailingHole = uniqueArray(118 tuple(restrictedIntegerArbitraryBuilder(0, maxGeneratedIndexAuthorized, maxIndexAuthorized), arb),119 {120 size: resultedSizeMaxNumElements,121 minLength: minNumElements,122 maxLength: resultedMaxNumElements,123 selector: (item) => item[0],124 depthIdentifier,125 }126 ).map(127 (items) => {128 // When maxLength=0 (implies resultedMaxNumElements=0) we will have items=[] leading to lastIndex=-1129 // resulting in an empty array130 const lastIndex = extractMaxIndex(items);131 return arrayFromItems(lastIndex + 1, items);132 },133 (value: unknown): [number, T][] => {134 if (!safeArrayIsArray(value)) {135 throw new Error('Not supported entry type');136 }137 if (noTrailingHole && value.length !== 0 && !(value.length - 1 in value)) {138 throw new Error('No trailing hole');139 }140 return safeMap(safeObjectEntries(value as T[]), (entry): [number, T] => [Number(entry[0]), entry[1]]);141 }142 );143 if (noTrailingHole || maxLength === minNumElements) {144 return sparseArrayNoTrailingHole;145 }146 return tuple(147 sparseArrayNoTrailingHole,148 restrictedIntegerArbitraryBuilder(minNumElements, maxGeneratedLength, maxLength)149 ).map(150 (data) => {151 const sparse = data[0];152 const targetLength = data[1];153 if (sparse.length >= targetLength) {154 return sparse;155 }156 const longerSparse = safeSlice(sparse);157 longerSparse.length = targetLength;158 return longerSparse;159 },160 (value: unknown): [T[], number] => {161 if (!safeArrayIsArray(value)) {162 throw new Error('Not supported entry type');163 }164 return [value, value.length];165 }166 );...

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Using AI Code Generation

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1const { fc } = require('fast-check');2const { sparseArrayNoTrailingHole } = require('fast-check/lib/arbitrary/sparseArray.js');3const { array } = require('fast-check/lib/arbitrary/array.js');4const { nat } = require('fast-check/lib/arbitrary/nat.js');5const arb = array(nat(10), 0, 100).map(array => {6 return sparseArrayNoTrailingHole(array);7});8const { seed, numRuns } = JSON.parse(process.argv[2]);9fc.assert(fc.property(arb, array => {10 return true;11}), { seed, numRuns });12const { fc } = require('fast-check');13const { sparseArray } = require('fast-check/lib/arbitrary/sparseArray.js');14const { array } = require('fast-check/lib/arbitrary/array.js');15const { nat } = require('fast-check/lib/arbitrary/nat.js');16const arb = array(nat(10), 0, 100).map(array => {17 return sparseArray(array);18});19const { seed, numRuns } = JSON.parse(process.argv[2]);20fc.assert(fc.property(arb, array => {21 return true;22}), { seed, numRuns });23const { fc } = require('fast-check');24const { sparseArray } = require('fast-check/lib/arbitrary/sparseArray.js');25const { array } = require('fast-check/lib/arbitrary/array.js');26const { nat } = require('fast-check/lib/arbitrary/nat.js');27const arb = array(nat(10), 0, 100).map(array => {28 return sparseArray(array);29});30const { seed, numRuns } = JSON.parse(process.argv[2]);31fc.assert(fc.property(arb, array => {32 return true;33}), { seed, numRuns });34const { fc } = require('fast-check');35const { sparseArray } = require('fast-check/lib/arbitrary/sparseArray.js');36const { array } = require('fast-check/lib/arbitrary/array.js');

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Using AI Code Generation

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1const fc = require("fast-check");2const { sparseArrayNoTrailingHole } = require("fast-check/lib/arbitrary/sparseArray.js");3const { array } = require("fast-check/lib/arbitrary/array.js");4const arb = sparseArrayNoTrailingHole(array(fc.integer(), 0, 10), 0, 10);5fc.assert(fc.property(arb, (arr) => arr.length <= 10));6const fc = require("fast-check");7const { sparseArrayNoTrailingHole } = require("fast-check/lib/arbitrary/sparseArray.js");8const { array } = require("fast-check/lib/arbitrary/array.js");9const arb = sparseArrayNoTrailingHole(array(fc.integer(), 0, 10), 0, 10);10fc.assert(fc.property(arb, (arr) => arr.length <= 10));11const fc = require("fast-check");12const { sparseArrayNoTrailingHole } = require("fast-check/lib/arbitrary/sparseArray.js");13const { array } = require("fast-check/lib/arbitrary/array.js");14const arb = sparseArrayNoTrailingHole(array(fc.integer(), 0, 10), 0, 10);15fc.assert(fc.property(arb, (arr) => arr.length <= 10));16const fc = require("fast-check");17const { sparseArrayNoTrailingHole } = require("fast-check/lib/arbitrary/sparseArray.js");18const { array } = require("fast-check/lib/arbitrary/array.js");19const arb = sparseArrayNoTrailingHole(array(fc.integer(), 0, 10), 0, 10);20fc.assert(fc.property(arb, (arr) => arr.length <= 10));21const fc = require("fast-check");22const { sparseArrayNoTrailingHole } = require("fast-check/lib/arbitrary/sparseArray.js");23const { array } = require("

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Using AI Code Generation

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1const {sparseArrayNoTrailingHole} = require('fast-check');2const {property} = require('ava-fast-check');3property('sparseArrayNoTrailingHole', [sparseArrayNoTrailingHole], (t, arr) => {4 t.true(arr.length > 0);5 t.true(arr[arr.length - 1] !== undefined);6});7const {sparseArrayNoTrailingHole} = require('fast-check');8const {property} = require('ava-fast-check');9property('sparseArrayNoTrailingHole', [sparseArrayNoTrailingHole], (t, arr) => {10 t.true(arr.length > 0);11 t.true(arr[arr.length - 1] !== undefined);12});13const {sparseArrayNoTrailingHole} = require('fast-check');14const {property} = require('ava-fast-check');15property('sparseArrayNoTrailingHole', [sparseArrayNoTrailingHole], (t, arr) => {16 t.true(arr.length > 0);17 t.true(arr[arr.length - 1] !== undefined);18});

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Using AI Code Generation

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1var sparseArrayNoTrailingHole = require('fast-check-monorepo').sparseArrayNoTrailingHole;2console.log('sparseArrayNoTrailingHole: ', sparseArrayNoTrailingHole);3console.log('sparseArrayNoTrailingHole: ', sparseArrayNoTrailingHole);4console.log('sparseArrayNoTrailingHole: ', sparseArrayNoTrailingHole);5console.log('sparseArrayNoTrailingHole: ', sparseArrayNoTrailingHole);6console.log('sparseArrayNoTrailingHole: ', sparseArrayNoTrailingHole);7console.log('sparseArrayNoTrailingHole: ', sparseArrayNoTrailingH

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Using AI Code Generation

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1const fc = require('fast-check');2const { sparseArrayNoTrailingHole } = require('fast-check/lib/arbitrary/sparseArrayNoTrailingHole.js');3const { array } = require('fast-check/lib/arbitrary/array.js');4const arbSparseArrayNoTrailingHole = sparseArrayNoTrailingHole(array(fc.integer()));5fc.assert(6 fc.property(arbSparseArrayNoTrailingHole, (sparseArray) => {7 expect(sparseArray.length).toBeGreaterThan(0);8 expect(sparseArray[sparseArray.length - 1]).not.toBe(undefined);9 })10);11const fc = require('fast-check');12const { sparseArrayNoTrailingHole } = require('fast-check/lib/arbitrary/sparseArrayNoTrailingHole.js');13const { array } = require('fast-check/lib/arbitrary/array.js');14const arbSparseArrayNoTrailingHole = sparseArrayNoTrailingHole(array(fc.integer()));15fc.assert(16 fc.property(arbSparseArrayNoTrailingHole, (sparseArray) => {17 expect(sparseArray.length).toBeGreaterThan(0);18 expect(sparseArray[sparseArray.length - 1]).not.toBe(undefined);19 })20);21const fc = require('fast-check');22const { sparseArrayNoTrailingHole } = require('fast-check/lib/arbitrary/sparseArrayNoTrailingHole.js');23const { array } = require('fast-check/lib/arbitrary/array.js');24const arbSparseArrayNoTrailingHole = sparseArrayNoTrailingHole(array(fc.integer()));25fc.assert(26 fc.property(arbSparseArrayNoTrailingHole, (sparseArray) => {27 expect(sparseArray.length).toBeGreaterThan(0);28 expect(sparseArray[sparseArray.length - 1]).not.toBe(undefined);29 })30);

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Using AI Code Generation

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1const fc = require('fast-check');2const sparseArrayNoTrailingHole = require('fast-check/lib/arbitrary/sparseArrayNoTrailingHole').sparseArrayNoTrailingHole;3const run = require('fast-check/lib/check/run').run;4const check = require('fast-check/lib/check/check').check;5const assert = require('assert');6const p = require('fast-check/lib/check/property/Property.generic').Property.generic;7const array = require('fast-check/lib/arbitrary/array').array;8const nat = require('fast-check/lib/arbitrary/nat').nat;9const natMax = require('fast-check/lib/arbitrary/natMax').natMax;10const constant = require('fast-check/lib/arbitrary/constant').constant;11const oneof = require('fast-check/lib/arbitrary/oneof').oneof;12const record = require('fast-check/lib/arbitrary/record').record;13const tuple = require('fast-check/lib/arbitrary/tuple').tuple;14const option = require('fast-check/lib/arbitrary/option').option;15const integer = require('fast-check/lib/arbitrary/integer').integer;16const string = require('fast-check/lib/arbitrary/string').string;17const double = require('fast-check/lib/arbitrary/double').double;18const float = require('fast-check/lib/arbitrary/float').float;19const bigInt = require('fast-check/lib/arbitrary/bigInt').bigInt;20const sparseArrayNoTrailingHoleArb = sparseArrayNoTrailingHole(array(oneof([nat, natMax, constant, integer, string, double, float, bigInt])));21const arb = array(sparseArrayNoTrailingHoleArb);22const p1 = p(arb, (a) => {23 console.log('a:', a);24 return true;25});26const out = run(100, [p1]);27console.log('out:', out);28const fc = require('fast-check');29const sparseArrayWithHoles = require('fast-check/lib/arbitrary/sparseArrayWithHoles').sparseArrayWithHoles;30const run = require('fast-check

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Using AI Code Generation

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1const {sparseArrayNoTrailingHole} = require('fast-check-monorepo');2const {fc} = require('fast-check');3const {convertToNext} = require('fast-check-converters');4const {convertFromNext} = require('fast-check-arbitrary');5const {convertFromNextWithShrunkOnce} = require('fast-check-generators');6const {convertFromNextAsync} = require('fast-check-async');

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Using AI Code Generation

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1const fc = require('fast-check');2const myArray = fc.sample(fc.sparseArrayNoTrailingHole(fc.integer(), 1, 100), 1);3console.log(myArray);4const fc = require('fast-check');5const myArray = fc.sample(fc.sparseArrayNoTrailingHole(fc.integer(), 1, 100), 1);6console.log(myArray);7const fc = require('fast-check');8const myArray = fc.sample(fc.sparseArrayNoTrailingHole(fc.integer(), 1, 100), 1);9console.log(myArray);10const fc = require('fast-check');11const myArray = fc.sample(fc.sparseArrayNoTrailingHole(fc.integer(), 1, 100), 1);12console.log(myArray);13const fc = require('fast-check');14const myArray = fc.sample(fc.sparseArrayNoTrailingHole(fc.integer(), 1, 100), 1);15console.log(myArray);16const fc = require('fast-check');17const myArray = fc.sample(fc.sparseArrayNoTrailingHole(fc.integer(), 1, 100), 1);18console.log(myArray);

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Using AI Code Generation

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1const fc = require('fast-check');2 .array(fc.integer())3 .map(arr => arr.filter(x => x % 2 === 0));4 .map(arr => [...arr, ,]);5 .map(arr => arr.length === 0 ? [1] : arr);6 .map(arr => arr.length === 0 ? [1] : arr)7 .map(arr => fc.sample(fc.array(fc.integer(), arr.length, arr.length), 1)[0]);8const prop = (arr) => {9 return arr.length === 0 || arr[arr.length - 1] !== undefined;10};11fc.assert(12 fc.property(genNumbersWithTrailingHole, prop),13 {verbose: true}14);15fc.assert(16 fc.property(genNumbersNoTrailingHole, prop),17 {verbose: true}18);19fc.assert(20 fc.property(genNumbersSparseArrayNoTrailingHole, prop),21 {verbose: true}22);23const numbers = fc.sample(genNumbers, 1)[0];24console.log(numbers);25const numbersWithTrailingHole = fc.sample(genNumbersWithTrailingHole, 1)[0];26console.log(numbersWithTrailingHole);27const numbersNoTrailingHole = fc.sample(genNumbersNoTrailingHole, 1)[0];28console.log(numbersNoTrailingHole);29const numbersSparseArrayNoTrailingHole = fc.sample(genNumbersSparseArrayNoTrailingHole, 1)[0];30console.log(numbersSparseArrayNoTrailingHole);31fc.assert(32 fc.property(genNumbersWithTrailingH

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