How to use longerSparse method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

sparseArray.ts

Source:sparseArray.ts

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  );...

Using AI Code Generation

1const fc = require("fast-check");2const {longerSparse} = require("fast-check-monorepo");3const {longerSparse2} = require("fast-check-monorepo");4const {longerSparse3} = require("fast-check-monorepo");5const {longerSparse4} = require("fast-check-monorepo");6const {longerSparse5} = require("fast-check-monorepo");7const {longerSparse6} = require("fast-check-monorepo");8const {longerSparse7} = require("fast-check-monorepo");9const {longerSparse8} = require("fast-check-monorepo");10const {longerSparse9} = require("fast-check-monorepo");11const {longerSparse10} = require("fast-check-monorepo");12const {longerSparse11} = require("fast-check-monorepo");13const {longerSparse12} = require("fast-check-monorepo");14const {longerSparse13} = require("fast-check-monorepo");15const {longerSparse14} = require("fast-check-monorepo");16const {longerSparse15} = require("fast-check-monorepo");17const {longerSparse16} = require("fast-check-monorepo");18const {longerSparse17} = require("fast-check-monorepo");19const {longerSparse18} = require("fast-check-monorepo");20const {longerSparse19} = require("fast-check-monorepo");21const {longerSparse20} = require("fast-check-monorepo");22const {longerSparse21} = require("fast-check-monorepo");23const {longerSparse22} = require("fast-check-monorepo");24const {longerSparse23} = require("fast-check-monorepo");25const {longerSparse24} = require("fast-check-monorepo");26const {longerSparse25} = require("fast-check-monorepo");27const {longerSparse26} = require("fast-check-monorepo");28const {longerSparse27} = require("fast-check-monorepo");29const {longerSparse28} = require("fast-check-monorepo");30const {longerSparse29} = require("fast-check-monorepo");31const {longerSparse30} = require("fast-check-monorepo");32const {longerSparse31} = require("fast

Using AI Code Generation

1const fc = require("fast-check");2const { longerSparse } = require("fast-check-monorepo");3fc.assert(4  fc.property(longerSparse(), (a) => {5    return true;6  })7);8const fc = require("fast-check");9const { shorterSparse } = require("fast-check-monorepo");10fc.assert(11  fc.property(shorterSparse(), (a) => {12    return true;13  })14);15const fc = require("fast-check");16const { sparse } = require("fast-check-monorepo");17fc.assert(18  fc.property(sparse(), (a) => {19    return true;20  })21);22const fc = require("fast-check");23const { sparse } = require("fast-check-monorepo");24fc.assert(25  fc.property(sparse(), (a) => {26    return true;27  })28);29const fc = require("fast-check");30const { sparse } = require("fast-check-monorepo");31fc.assert(32  fc.property(sparse(), (a) => {33    return true;34  })35);36const fc = require("fast-check");37const { sparse } = require("fast-check-monorepo");38fc.assert(39  fc.property(sparse(), (a) => {40    return true;41  })42);43const fc = require("fast-check");44const { sparse } = require("fast-check-monorepo");45fc.assert(46  fc.property(sparse(), (a) => {47    return true;48  })49);50const fc = require("fast-check");51const { sparse } = require("fast-check-monorepo");52fc.assert(53  fc.property(sparse(), (a) => {54    return true;55  })56);

Using AI Code Generation

1const fc = require('fast-check');2const {longerSparse} = require('fast-check/lib/arbitrary/LongerSparseArbitrary');3const arb1 = fc.array(fc.integer(0, 100), 0, 10);4const arb2 = longerSparse(arb1);5fc.assert(fc.property(arb2, (arr) => {6    console.log(arr);7    return true;8})

Using AI Code Generation

1var fc = require("fast-check");2var { longerSparse } = require("fast-check-monorepo");3var { longSparse } = require("fast-check-monorepo");4fc.assert(5  fc.property(longerSparse(longSparse()), function (n) {6    return true;7  })8);9at Function.Module._resolveFilename (internal/modules/cjs/loader.js:880:15)10at Function.Module._load (internal/modules/cjs/loader.js:725:27)11at Module.require (internal/modules/cjs/loader.js:952:19)12at require (internal/modules/cjs/helpers.js:88:18)13at Object.<anonymous> (/home/.../test3.js:4:31)14at Module._compile (internal/modules/cjs/loader.js:1063:30)15at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)16at Module.load (internal/modules/cjs/loader.js:928:32)17at Function.Module._load (internal/modules/cjs/loader.js:769:14)18at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:72:12) {19}20at Function.Module._resolveFilename (internal/modules/cjs/loader.js:880:15)21at Function.Module._load (internal/modules/cjs/loader.js:725:27)22at Module.require (internal/modules/cjs/loader.js:952

Using AI Code Generation

1const {longerSparse} = require('fast-check-monorepo');2describe('longerSparse', () => {3  it('should generate an array with more elements than sparse', () => {4    const arb = longerSparse();5    for (let i = 0; i < 100; i++) {6      const value = arb.generate(mrng.noBias);7      expect(value.length).toBeGreaterThan(value.filter(x => x === undefined).length);8    }9  });10});11const {shorterSparse} = require('fast-check-monorepo');12describe('shorterSparse', () => {13  it('should generate an array with less elements than sparse', () => {14    const arb = shorterSparse();15    for (let i = 0; i < 100; i++) {16      const value = arb.generate(mrng.noBias);17      expect(value.length).toBeLessThan(value.filter(x => x === undefined).length);18    }19  });20});21const {sparse} = require('fast-check-monorepo');22describe('sparse', () => {23  it('should generate an array with more or less elements than sparse', () => {24    const arb = sparse();25    for (let i = 0; i < 100; i++) {26      const value = arb.generate(mrng.noBias);27      expect(value.length).not.toBe(value.filter(x => x === undefined).length);28    }29  });30});31const {sparse} = require('fast-check');32describe('sparse', () => {33  it('should generate an array with more or less elements than sparse', () => {34    const arb = sparse();35    for (let i = 0; i < 100; i++) {36      const value = arb.generate(mrng.noBias);37      expect(value.length).not.toBe(value.filter(x => x === undefined).length);38    }39  });40});41const {sparse} = require('fast-check');42describe('sparse', () => {43  it('should generate an array with more or less elements than sparse', () => {44    const arb = sparse();

Using AI Code Generation

1const fc = require('fast-check');2fc.assert(3  fc.property(fc.longerSparseArray(fc.integer()), (arr) => {4    return arr.length > 0;5  })6);

Using AI Code Generation

1const fc = require('fast-check');2const { longerSparse } = require('fast-check-monorepo');3let myArbitrary = fc.array(longerSparse(fc.nat(), 5, 10), 5, 10);4fc.assert(fc.property(myArbitrary, (a) => {5    console.log(a);6    return true;7}));

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