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How to use isStrictlySmallerArray method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

commands.spec.ts

Source:commands.spec.ts

...200                // Run all commands of nextShrinkable201                simulateCommands(nextValue.value_);202                // Check nextShrinkable is strictly smaller than current one203                const nextItems = [...nextValue.value_].map((c) => +extractIdRegex.exec(c.toString())![1]);204                expect(isStrictlySmallerArray(nextItems, currentItems)).toBe(true);205                // Next is eligible for shrinking206                return nextValue;207              })208              .getNthOrLast(it.next().value);209          }210        }211      )212    );213  });214  it('should shrink the same way when based on replay data', () => {215    fc.assert(216      fc.property(217        fc.integer().noShrink(),218        fc.nat(100),...

array.spec.ts

Source:array.spec.ts

1import * as fc from 'fast-check';2import { array } from '../../../src/arbitrary/array';3import { FakeIntegerArbitrary, fakeArbitrary } from './__test-helpers__/ArbitraryHelpers';4import * as ArrayArbitraryMock from '../../../src/arbitrary/_internals/ArrayArbitrary';5import {6  assertProduceCorrectValues,7  assertProduceSameValueGivenSameSeed,8  assertProduceValuesShrinkableWithoutContext,9  assertShrinkProducesSameValueWithoutInitialContext,10  assertShrinkProducesStrictlySmallerValue,11} from './__test-helpers__/ArbitraryAssertions';12import { isStrictlySmallerArray } from './__test-helpers__/ArrayHelpers';13import { Value } from '../../../src/check/arbitrary/definition/Value';14import { buildShrinkTree, renderTree } from './__test-helpers__/ShrinkTree';15import { sizeRelatedGlobalConfigArb } from './__test-helpers__/SizeHelpers';16import { withConfiguredGlobal } from './__test-helpers__/GlobalSettingsHelpers';17function beforeEachHook() {18  jest.resetModules();19  jest.restoreAllMocks();20  fc.configureGlobal({ beforeEach: beforeEachHook });21}22beforeEach(beforeEachHook);23describe('array', () => {24  it('should instantiate ArrayArbitrary(arb, 0, ?, 0x7fffffff, n.a) for array(arb)', () => {25    fc.assert(26      fc.property(sizeRelatedGlobalConfigArb, (config) => {27        // Arrange28        const { instance: childInstance } = fakeArbitrary<unknown>();29        const { instance } = fakeArbitrary<unknown[]>();30        const ArrayArbitrary = jest.spyOn(ArrayArbitraryMock, 'ArrayArbitrary');31        ArrayArbitrary.mockImplementation(() => instance as ArrayArbitraryMock.ArrayArbitrary<unknown>);32        // Act33        const arb = withConfiguredGlobal(config, () => array(childInstance));34        // Assert35        expect(ArrayArbitrary).toHaveBeenCalledWith(36          childInstance,37          0,38          expect.any(Number),39          0x7fffffff,40          undefined,41          undefined,42          []43        );44        const receivedGeneratedMaxLength = ArrayArbitrary.mock.calls[0][2]; // Expecting the real value would check an implementation detail45        expect(receivedGeneratedMaxLength).toBeGreaterThan(0);46        expect(receivedGeneratedMaxLength).toBeLessThanOrEqual(2 ** 31 - 1);47        expect(Number.isInteger(receivedGeneratedMaxLength)).toBe(true);48        expect(arb).toBe(instance);49      })50    );51  });52  it('should instantiate ArrayArbitrary(arb, 0, ?, maxLength, n.a) for array(arb, {maxLength})', () => {53    fc.assert(54      fc.property(sizeRelatedGlobalConfigArb, fc.nat({ max: 2 ** 31 - 1 }), (config, maxLength) => {55        // Arrange56        const { instance: childInstance } = fakeArbitrary<unknown>();57        const { instance } = fakeArbitrary<unknown[]>();58        const ArrayArbitrary = jest.spyOn(ArrayArbitraryMock, 'ArrayArbitrary');59        ArrayArbitrary.mockImplementation(() => instance as ArrayArbitraryMock.ArrayArbitrary<unknown>);60        // Act61        const arb = withConfiguredGlobal(config, () => array(childInstance, { maxLength }));62        // Assert63        expect(ArrayArbitrary).toHaveBeenCalledWith(64          childInstance,65          0,66          expect.any(Number),67          maxLength,68          undefined,69          undefined,70          []71        );72        const receivedGeneratedMaxLength = ArrayArbitrary.mock.calls[0][2]; // Expecting the real value would check an implementation detail73        expect(receivedGeneratedMaxLength).toBeGreaterThanOrEqual(0);74        expect(receivedGeneratedMaxLength).toBeLessThanOrEqual(maxLength);75        expect(Number.isInteger(receivedGeneratedMaxLength)).toBe(true);76        if (config.defaultSizeToMaxWhenMaxSpecified) {77          expect(ArrayArbitrary).toHaveBeenCalledWith(childInstance, 0, maxLength, maxLength, undefined, undefined, []);78        }79        expect(arb).toBe(instance);80      })81    );82  });83  it('should instantiate ArrayArbitrary(arb, minLength, ?, 0x7fffffff, n.a) for array(arb, {minLength})', () => {84    fc.assert(85      fc.property(sizeRelatedGlobalConfigArb, fc.nat({ max: 2 ** 31 - 1 }), (config, minLength) => {86        // Arrange87        const { instance: childInstance } = fakeArbitrary<unknown>();88        const { instance } = fakeArbitrary<unknown[]>();89        const ArrayArbitrary = jest.spyOn(ArrayArbitraryMock, 'ArrayArbitrary');90        ArrayArbitrary.mockImplementation(() => instance as ArrayArbitraryMock.ArrayArbitrary<unknown>);91        // Act92        const arb = withConfiguredGlobal(config, () => array(childInstance, { minLength }));93        // Assert94        expect(ArrayArbitrary).toHaveBeenCalledWith(95          childInstance,96          minLength,97          expect.any(Number),98          0x7fffffff,99          undefined,100          undefined,101          []102        );103        const receivedGeneratedMaxLength = ArrayArbitrary.mock.calls[0][2]; // Expecting the real value would check an implementation detail104        if (minLength !== 2 ** 31 - 1) {105          expect(receivedGeneratedMaxLength).toBeGreaterThan(minLength);106          expect(receivedGeneratedMaxLength).toBeLessThanOrEqual(2 ** 31 - 1);107          expect(Number.isInteger(receivedGeneratedMaxLength)).toBe(true);108        } else {109          expect(receivedGeneratedMaxLength).toEqual(minLength);110        }111        expect(arb).toBe(instance);112      })113    );114  });115  it('should instantiate ArrayArbitrary(arb, minLength, ?, maxLength, n.a) for array(arb, {minLength,maxLength})', () => {116    fc.assert(117      fc.property(118        sizeRelatedGlobalConfigArb,119        fc.nat({ max: 2 ** 31 - 1 }),120        fc.nat({ max: 2 ** 31 - 1 }),121        (config, aLength, bLength) => {122          // Arrange123          const [minLength, maxLength] = aLength < bLength ? [aLength, bLength] : [bLength, aLength];124          const { instance: childInstance } = fakeArbitrary<unknown>();125          const { instance } = fakeArbitrary<unknown[]>();126          const ArrayArbitrary = jest.spyOn(ArrayArbitraryMock, 'ArrayArbitrary');127          ArrayArbitrary.mockImplementation(() => instance as ArrayArbitraryMock.ArrayArbitrary<unknown>);128          // Act129          const arb = withConfiguredGlobal(config, () => array(childInstance, { minLength, maxLength }));130          // Assert131          expect(ArrayArbitrary).toHaveBeenCalledWith(132            childInstance,133            minLength,134            expect.any(Number),135            maxLength,136            undefined,137            undefined,138            []139          );140          const receivedGeneratedMaxLength = ArrayArbitrary.mock.calls[0][2]; // Expecting the real value would check an implementation detail141          expect(receivedGeneratedMaxLength).toBeGreaterThanOrEqual(minLength);142          expect(receivedGeneratedMaxLength).toBeLessThanOrEqual(maxLength);143          expect(Number.isInteger(receivedGeneratedMaxLength)).toBe(true);144          if (config.defaultSizeToMaxWhenMaxSpecified) {145            expect(ArrayArbitrary).toHaveBeenCalledWith(146              childInstance,147              minLength,148              maxLength,149              maxLength,150              undefined,151              undefined,152              []153            );154          }155          expect(arb).toBe(instance);156        }157      )158    );159  });160  it('should instantiate ArrayArbitrary(arb, minLength, ?, maxLength, identifier) for array(arb, {minLength,maxLength, depthIdentifier})', () => {161    fc.assert(162      fc.property(163        sizeRelatedGlobalConfigArb,164        fc.nat({ max: 2 ** 31 - 1 }),165        fc.nat({ max: 2 ** 31 - 1 }),166        fc.string(),167        (config, aLength, bLength, depthIdentifier) => {168          // Arrange169          const [minLength, maxLength] = aLength < bLength ? [aLength, bLength] : [bLength, aLength];170          const { instance: childInstance } = fakeArbitrary<unknown>();171          const { instance } = fakeArbitrary<unknown[]>();172          const ArrayArbitrary = jest.spyOn(ArrayArbitraryMock, 'ArrayArbitrary');173          ArrayArbitrary.mockImplementation(() => instance as ArrayArbitraryMock.ArrayArbitrary<unknown>);174          // Act175          const arb = withConfiguredGlobal(config, () =>176            array(childInstance, { minLength, maxLength, depthIdentifier })177          );178          // Assert179          expect(ArrayArbitrary).toHaveBeenCalledWith(180            childInstance,181            minLength,182            expect.any(Number),183            maxLength,184            depthIdentifier,185            undefined,186            []187          );188          const receivedGeneratedMaxLength = ArrayArbitrary.mock.calls[0][2]; // Expecting the real value would check an implementation detail189          expect(receivedGeneratedMaxLength).toBeGreaterThanOrEqual(minLength);190          expect(receivedGeneratedMaxLength).toBeLessThanOrEqual(maxLength);191          expect(Number.isInteger(receivedGeneratedMaxLength)).toBe(true);192          if (config.defaultSizeToMaxWhenMaxSpecified) {193            expect(ArrayArbitrary).toHaveBeenCalledWith(194              childInstance,195              minLength,196              maxLength,197              maxLength,198              depthIdentifier,199              undefined,200              []201            );202          }203          expect(arb).toBe(instance);204        }205      )206    );207  });208  it('should throw when minimum length is greater than maximum one', () => {209    fc.assert(210      fc.property(211        sizeRelatedGlobalConfigArb,212        fc.nat({ max: 2 ** 31 - 1 }),213        fc.nat({ max: 2 ** 31 - 1 }),214        (config, aLength, bLength) => {215          // Arrange216          fc.pre(aLength !== bLength);217          const [minLength, maxLength] = aLength < bLength ? [bLength, aLength] : [aLength, bLength];218          const { instance: childInstance } = fakeArbitrary<unknown>();219          // Act / Assert220          expect(() =>221            withConfiguredGlobal(config, () => array(childInstance, { minLength, maxLength }))222          ).toThrowError();223        }224      )225    );226  });227});228describe('array (integration)', () => {229  type Extra = { minLength?: number; maxLength?: number };230  const extraParameters: fc.Arbitrary<Extra> = fc231    .tuple(fc.nat({ max: 5 }), fc.nat({ max: 30 }), fc.boolean(), fc.boolean())232    .map(([min, gap, withMin, withMax]) => ({233      minLength: withMin ? min : undefined,234      maxLength: withMax ? min + gap : undefined,235    }));236  const isCorrect = (value: number[], extra: Extra) => {237    if (extra.minLength !== undefined) {238      expect(value.length).toBeGreaterThanOrEqual(extra.minLength);239    }240    if (extra.maxLength !== undefined) {241      expect(value.length).toBeLessThanOrEqual(extra.maxLength);242    }243    for (const v of value) {244      expect(typeof v).toBe('number');245    }246  };247  const isStrictlySmaller = isStrictlySmallerArray;248  const arrayBuilder = (extra: Extra) => array(new FakeIntegerArbitrary(), extra);249  it('should produce the same values given the same seed', () => {250    assertProduceSameValueGivenSameSeed(arrayBuilder, { extraParameters });251  });252  it('should only produce correct values', () => {253    assertProduceCorrectValues(arrayBuilder, isCorrect, { extraParameters });254  });255  it('should produce values seen as shrinkable without any context', () => {256    assertProduceValuesShrinkableWithoutContext(arrayBuilder, { extraParameters });257  });258  it('should be able to shrink to the same values without initial context', () => {259    assertShrinkProducesSameValueWithoutInitialContext(arrayBuilder, { extraParameters });260  });261  it('should preserve strictly smaller ordering in shrink', () => {262    assertShrinkProducesStrictlySmallerValue(arrayBuilder, isStrictlySmaller, { extraParameters });263  });264  it.each`265    rawValue                 | minLength266    ${[2, 4, 8, 16, 32, 64]} | ${undefined}267    ${[2, 4, 8]}             | ${undefined}268    ${[2, 4, 8]}             | ${2}269    ${[2, 4, 8]}             | ${3}270  `('should be able to shrink $rawValue given constraints minLength:$minLength', ({ rawValue, minLength }) => {271    // Arrange272    const constraints = { minLength };273    const arb = array(new FakeIntegerArbitrary(0, 1000), constraints);274    const value = new Value(rawValue, undefined);275    // Act276    const renderedTree = renderTree(buildShrinkTree(arb, value, { numItems: 100 })).join('\n');277    // Assert278    expect(arb.canShrinkWithoutContext(rawValue)).toBe(true);279    expect(renderedTree).toMatchSnapshot();280  });...

ArrayHelpers.ts

Source:ArrayHelpers.ts

1export const isStrictlySmallerArray = (arr1: number[], arr2: number[]): boolean => {2  if (arr1.length > arr2.length) return false;3  if (arr1.length === arr2.length) {4    return arr1.every((v, idx) => arr1[idx] <= arr2[idx]) && arr1.find((v, idx) => arr1[idx] < arr2[idx]) != null;5  }6  for (let idx1 = 0, idx2 = 0; idx1 < arr1.length && idx2 < arr2.length; ++idx1, ++idx2) {7    while (idx2 < arr2.length && arr1[idx1] > arr2[idx2]) ++idx2;8    if (idx2 === arr2.length) return false;9  }10  return true;...

Using AI Code Generation

1const { isStrictlySmallerArray } = require('fast-check');2const array1 = [1, 2, 3];3const array2 = [1, 2, 3, 4];4const array3 = [1, 2, 3, 4];5const { isStrictlySmallerArray } = require('fast-check');6const array1 = [1, 2, 3];7const array2 = [1, 2, 3, 4];8const array3 = [1, 2, 3, 4];9const { isStrictlySmallerArray } = require('fast-check');10const array1 = [1, 2, 3];11const array2 = [1, 2, 3, 4];12const array3 = [1, 2, 3, 4];13const { isStrictlySmallerArray } = require('fast-check');14const array1 = [1, 2, 3];

Using AI Code Generation

1const fc = require("fast-check");2const { isStrictlySmallerArray } = require("fast-check/lib/check/arbitrary/definition/ArrayArbitrary.js");3const a1 = [1, 2, 3];4const a2 = [1, 2, 3, 4];5const a3 = [1, 2, 3, 5];6const a4 = [1, 2, 3, 5, 6];

Using AI Code Generation

1const {isStrictlySmallerArray} = require('fast-check-monorepo');2const array1 = [1,2];3const array2 = [1,2,3];4const array3 = [1,2,3,4];5const array4 = [1,2,3];6const array5 = [1];7const array6 = [1,2];8const array7 = [];9const array8 = [1];10const array9 = [];11const array10 = [];12const array11 = ["a","b"];13const array12 = ["a","b","c"];14const array13 = ["a","b"];15const array14 = ["a","b","c"];16const array15 = ["a","b","c"];17const array16 = ["a","b","c"];18const array17 = ["a","b"];19const array18 = ["a","b","c"];20const array19 = ["a","b"];21const array20 = ["a","b","c"];22const array21 = ["a","b","c"];23const array22 = ["a","b","c"];

Using AI Code Generation

1const fc = require('fast-check');2const {isStrictlySmallerArray} = require('fast-check-monorepo/packages/arbitrary-array/src/ArrayArbitrary.ts');3const {isStrictlySmaller} = require('fast-check-monorepo/packages/arbitrary-array/src/ArrayArbitrary.ts');4const {isStrictlySmallerArray} = require('fast-check-monorepo/packages/arbitrary-array/src/ArrayArbitrary.ts');5const {isStrictlySmaller} = require('fast-check-monorepo/packages/arbitrary-array/src/ArrayArbitrary.ts');6const {isStrictlySmallerArray} = require('fast-check-monorepo/packages/arbitrary-array/src/ArrayArbitrary.ts');7const {isStrictlySmaller} = require('fast-check-monorepo/packages/arbitrary-array/src/ArrayArbitrary.ts');8const {isStrictlySmallerArray} = require('fast-check-monorepo/packages/arbitrary-array/src/ArrayArbitrary.ts');9const {isStrictlySmaller} = require('fast-check-monorepo/packages/arbitrary-array/src/ArrayArbitrary.ts');10const {isStrictlySmallerArray} = require('fast-check-monorepo/packages/arbitrary-array/src/ArrayArbitrary.ts');11const {isStrictlySmaller} = require('fast-check-monorepo/packages/arbitrary-array/src/ArrayArbitrary.ts');12const {isStrictlySmallerArray} = require('fast-check-monorepo/packages/arbitrary-array/src/ArrayArbitrary.ts');13const {isStrictlySmaller} = require('fast-check-monorepo/packages/arbitrary-array/src/ArrayArbitrary.ts');14const {isStrictlySmallerArray} = require('fast-check-monorepo/packages/arbitrary-array/src/ArrayArbitrary.ts');15const {isStrictlySmaller} = require('fast-check-monorepo/packages/arbitrary-array/src/ArrayArbitrary.ts');16const {isStrictlySmallerArray} = require('fast-check-monorepo/packages/arbitrary-array/src/ArrayArbitrary.ts');17const {isStrictlySmaller} = require('fast-check-monorepo/packages/arbitrary-array/src/ArrayArbitrary.ts');18const {isStrictlySmallerArray} = require('fast-check-monorepo/packages/arbitrary-array/src/ArrayArbitrary.ts');19const {

Using AI Code Generation

1const fc = require("fast-check");2const arbs = require("fast-check-monorepo");3const array1 = [1, 2, 3, 4];4const array2 = [1, 2, 3, 4];5const array3 = [1, 2, 3, 4, 5];6const array4 = [1, 2, 3, 5];7const array5 = [1, 2, 3, 4, 5, 6];8const array6 = [1, 2, 3, 4, 6];9const array7 = [1, 2, 3, 4, 5, 6, 7];10const array8 = [1, 2, 3, 4, 5, 6, 8];11const array9 = [1, 2, 3, 4, 5, 6, 7, 8];12const array10 = [1, 2, 3, 4, 5, 6, 7, 9];13const array11 = [1, 2, 3, 4, 5, 6, 7, 8, 9];14const array12 = [1, 2, 3, 4, 5, 6, 7, 8, 10];15const array13 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];16const array14 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 11];17const array15 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11];

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