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How to use biasNumericRange method in fast-check-monorepo
Best JavaScript code snippet using fast-check-monorepo
BiasNumericRange.spec.ts
Source:BiasNumericRange.spec.ts 
...11 fc.integer({ min: Number.MIN_SAFE_INTEGER, max: -1 }),12 fc.integer({ min: 1, max: Number.MAX_SAFE_INTEGER }),13 (min, max) => {14 // Arrange / Act15 const ranges = biasNumericRange(min, max, integerLogLike);16 // Assert17 expect(ranges).toHaveLength(3);18 expect(ranges).toEqual([19 { min: expect.toBeWithinRange(min, 0), max: expect.toBeWithinRange(0, max) }, // close to zero20 { min: expect.toBeWithinRange(0, max), max: max }, // close to max21 { min: min, max: expect.toBeWithinRange(min, 0) }, // close to min22 ]);23 }24 )25 ));26 it('should bias close to extreme values if min and max have same signs', () =>27 fc.assert(28 fc.property(29 fc.constantFrom(1, -1),30 fc.integer({ min: 0, max: Number.MAX_SAFE_INTEGER }),31 fc.integer({ min: 0, max: Number.MAX_SAFE_INTEGER }),32 (sign, minRaw, maxRaw) => {33 // Arrange34 fc.pre(minRaw !== maxRaw);35 const minRawSigned = sign * minRaw;36 const maxRawSigned = sign * maxRaw;37 const [min, max] = minRawSigned < maxRawSigned ? [minRawSigned, maxRawSigned] : [maxRawSigned, minRawSigned];38 // Act39 const ranges = biasNumericRange(min, max, integerLogLike);40 // Assert41 expect(ranges).toHaveLength(2);42 const closeToMin = { min: expect.toBeWithinRange(min + 1, max), max: max }; // close to max43 const closeToMax = { min: min, max: expect.toBeWithinRange(min, max - 1) }; // close to min44 if (sign > 0) expect(ranges).toEqual([closeToMax, closeToMin]);45 else expect(ranges).toEqual([closeToMin, closeToMax]);46 }47 )48 ));49 it('should not bias anything for equal values of min and max', () =>50 fc.assert(51 fc.property(fc.maxSafeInteger(), (minMax) => {52 // Arrange / Act53 const ranges = biasNumericRange(minMax, minMax, integerLogLike);54 // Assert55 expect(ranges).toHaveLength(1);56 expect(ranges).toEqual([{ min: minMax, max: minMax }]); // no bias, cannot do more57 })58 ));59 it('should always bias in valid ranges when using integerLogLike', () =>60 fc.assert(61 fc.property(fc.maxSafeInteger(), fc.maxSafeInteger(), (a, b) => {62 // Arrange63 const min = a < b ? a : b;64 const max = a < b ? b : a;65 // Act66 const ranges = biasNumericRange(min, max, integerLogLike);67 // Assert68 expect(ranges).not.toHaveLength(0);69 for (const range of ranges) {70 expect(range.max).toBeGreaterThanOrEqual(range.min);71 expect(min).toBeLessThanOrEqual(range.max);72 expect(max).toBeGreaterThanOrEqual(range.max);73 expect(min).toBeLessThanOrEqual(range.min);74 expect(max).toBeGreaterThanOrEqual(range.min);75 }76 })77 ));78 if (typeof BigInt !== 'undefined') {79 it('should always bias in valid ranges when using bigIntLogLike', () =>80 fc.assert(81 fc.property(fc.bigInt(), fc.bigInt(), (a, b) => {82 // Arrange83 const min = a < b ? a : b;84 const max = a < b ? b : a;85 // Act86 const ranges = biasNumericRange(min, max, bigIntLogLike);87 // Assert88 expect(ranges).not.toHaveLength(0);89 for (const range of ranges) {90 expect(range.max).toBeGreaterThanOrEqual(range.min);91 expect(min).toBeLessThanOrEqual(range.max);92 expect(max).toBeGreaterThanOrEqual(range.max);93 expect(min).toBeLessThanOrEqual(range.min);94 expect(max).toBeGreaterThanOrEqual(range.min);95 }96 })97 ));98 }99});100// Helpers...
BigIntArbitrary.ts
Source:BigIntArbitrary.ts
...17 private computeGenerateRange(mrng: Random, biasFactor: number | undefined): { min: bigint; max: bigint } {18 if (biasFactor === undefined || mrng.nextInt(1, biasFactor) !== 1) {19 return { min: this.min, max: this.max };20 }21 const ranges = biasNumericRange(this.min, this.max, bigIntLogLike);22 if (ranges.length === 1) {23 return ranges[0];24 }25 const id = mrng.nextInt(-2 * (ranges.length - 1), ranges.length - 2); // 1st range has the highest priority26 return id < 0 ? ranges[0] : ranges[id + 1];27 }28 canShrinkWithoutContext(value: unknown): value is bigint {29 return typeof value === 'bigint' && this.min <= value && value <= this.max;30 }31 shrink(current: bigint, context?: unknown): Stream<Value<bigint>> {32 if (!BigIntArbitrary.isValidContext(current, context)) {33 // No context:34 // Take default target and shrink towards it35 // Try the target on first try...
BiasNumericRange.ts
Source:BiasNumericRange.ts
...10 if (v === BigInt(0)) return BigInt(0);11 return BigInt(String(v).length);12}13/** @internal */14function biasNumericRange(min: number, max: number, logLike: (n: number) => number): { min: number; max: number }[];15function biasNumericRange(min: bigint, max: bigint, logLike: (n: bigint) => bigint): { min: bigint; max: bigint }[];16function biasNumericRange<NType extends number | bigint>(17 min: NType,18 max: NType,19 logLike: (n: NType) => NType20): { min: NType; max: NType }[] {21 if (min === max) {22 return [{ min: min, max: max }];23 }24 if (min < 0 && max > 0) {25 // min < 0 && max > 026 const logMin = logLike(-min as any); // min !== 027 const logMax = logLike(max); // max !== 028 return [29 { min: -logMin as any, max: logMax }, // close to zero,...
Using AI Code Generation
1const fc = require('fast-check');2const biasNumericRange = require('fast-check-monorepo').biasNumericRange;3const biasNumericRange1 = require('fast-check-monorepo').biasNumericRange1;4const biasNumericRange2 = require('fast-check-monorepo').biasNumericRange2;5const biasNumericRange3 = require('fast-check-monorepo').biasNumericRange3;6const biasNumericRange4 = require('fast-check-monorepo').biasNumericRange4;7const biasNumericRange5 = require('fast-check-monorepo').biasNumericRange5;8const biasNumericRange6 = require('fast-check-monorepo').biasNumericRange6;9const biasNumericRange7 = require('fast-check-monorepo').biasNumericRange7;10const biasNumericRange8 = require('fast-check-monorepo').biasNumericRange8;11const biasNumericRange9 = require('fast-check-monorepo').biasNumericRange9;12const biasNumericRange10 = require('fast-check-monorepo').biasNumericRange10;13const biasNumericRange11 = require('fast-check-monorepo').biasNumericRange11;14const biasNumericRange12 = require('fast-check-monorepo').biasNumericRange12;15const biasNumericRange13 = require('fast-check-monorepo').biasNumericRange13;16const biasNumericRange14 = require('fast-check-monorepo').biasNumericRange14;17const biasNumericRange15 = require('fast-check-monorepo').biasNumericRange15;18const biasNumericRange16 = require('fast-check-monorepo').biasNumericRange16;19const biasNumericRange17 = require('fast-check-monorepo').biasNumericRange17;20const biasNumericRange18 = require('fast-check-monorepo').biasNumericRange18;21const biasNumericRange19 = require('fast-check-monorepo').biasNumericRange19;22const biasNumericRange20 = require('fast-check-monorepo').biasNumericRange20;23const biasNumericRange21 = require('fast-check-monorepo').biasNumericRange21;24const biasNumericRange22 = require('fast-check-monorepo').biasNumericRange22;25const biasNumericRange23 = require('fast-check-monorepo').biasNumericRange23;26const biasNumericRange24 = require('fast-check-monorepo').biasNumericRange24;27const biasNumericRange25 = require('fast-check-monore
Using AI Code Generation
1import * as fc from 'fast-check';2import * as fcM from 'fast-check-monorepo';3const range = fcM.biasNumericRange(0, 100, 50, 10);4const range2 = fcM.biasNumericRange(100, 0, 50, 10);5const range3 = fcM.biasNumericRange(0, 100, 50, 100);6const range4 = fcM.biasNumericRange(100, 0, 50, 100);7console.log("range: " + range);8console.log("range2: " + range2);9console.log("range3: " + range3);10console.log("range4: " + range4);11const range5 = fcM.biasNumericRange(0, 100, 50, 100);12const range6 = fcM.biasNumericRange(100, 0, 50, 100);13const range7 = fcM.biasNumericRange(0, 100, 50, 10);14const range8 = fcM.biasNumericRange(100, 0, 50, 10);15console.log("range5: " + range5);16console.log("range6: " + range6);17console.log("range7: " + range7);18console.log("range8: " + range8);19const range9 = fcM.biasNumericRange(0, 100, 50, 100);20const range10 = fcM.biasNumericRange(100, 0, 50, 100);
Using AI Code Generation
1import fc from 'fast-check';2test('biasNumericRange', () => {3 fc.assert(4 fc.property(fc.biasNumericRange(1, 10), (n) => {5 expect(n).toBeGreaterThanOrEqual(1);6 expect(n).toBeLessThanOrEqual(10);7 })8 );9});10import fc from 'fast-check';11test('biasNumericRange', () => {12 fc.assert(13 fc.property(fc.biasNumericRange(1, 10), (n) => {14 expect(n).toBeGreaterThanOrEqual(1);15 expect(n).toBeLessThanOrEqual(10);16 })17 );18});19import fc from 'fast-check';20test('biasNumericRange', () => {21 fc.assert(22 fc.property(fc.biasNumericRange(1, 10), (n) => {23 expect(n).toBeGreaterThanOrEqual(1);24 expect(n).toBeLessThanOrEqual(10);25 })26 );27});28import fc from 'fast-check';29test('biasNumericRange', () => {30 fc.assert(31 fc.property(fc.biasNumericRange(1, 10), (n) => {32 expect(n).toBeGreaterThanOrEqual(1);33 expect(n).toBeLessThanOrEqual(10);34 })35 );36});37import fc from 'fast-check';
Using AI Code Generation
1const { biasNumericRange } = require("fast-check");2const range = [-100, 100];3const bias = 0.5;4const biasedRange = biasNumericRange(range, bias);5console.log(biasedRange);6console.log(range);7console.log(bias);8console.log(range[1] - range[0] - biasedRange[1] + biasedRange[0]);9console.log(range[1] - range[0] - biasedRange[1] + biasedRange[0]);10console.log(range[1] - range[0] - biasedRange[1] + biasedRange[0]);11console.log(range[1] - range[0] - biasedRange[1] + biasedRange[0]);12console.log(range[1] - range[0] - biasedRange[1] + biasedRange[0]);13console.log(range[1] - range[0] - biasedRange[1] + biasedRange[0]);14console.log(range[1] - range[0] - biasedRange[1] + biasedRange[0]);15console.log(range[1] - range[0] - biasedRange[1] + biasedRange[0]);16console.log(range[1] - range[0] -
Using AI Code Generation
1const fc = require('fast-check');2function getNumber() {3 return Math.random();4}5function biasNumericRange(min, max, random) {6 return Math.floor(min + Math.pow(random, 2) * (max - min));7}8function unBiasNumericRange(min, max, random) {9 return Math.floor(min + Math.pow(random, 1 / 2) * (max - min));10}11function biasNumericRange2(min, max, random) {12 return Math.floor(min + Math.pow(random, 3) * (max - min));13}14function unBiasNumericRange2(min, max, random) {15 return Math.floor(min + Math.pow(random, 1 / 3) * (max - min));16}17function biasNumericRange3(min, max, random) {18 return Math.floor(min + Math.pow(random, 4) * (max - min));19}20function unBiasNumericRange3(min, max, random) {21 return Math.floor(min + Math.pow(random, 1 / 4) * (max - min));22}23function biasNumericRange4(min, max, random) {24 return Math.floor(min + Math.pow(random, 5) * (max - min));25}26function unBiasNumericRange4(min, max, random) {
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