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How to use negative64 method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

math.ts

Source:math.ts

...183/**184 * Negative version of an ArrayInt64185 * @internal186 */187export function negative64(arrayIntA: ArrayInt64): ArrayInt64 {188  return {189    sign: -arrayIntA.sign as -1 | 1,190    data: [arrayIntA.data[0], arrayIntA.data[1]]191  }192}193/**194 * Add two ArrayInt64195 * @returns When result is zero always with sign=1196 * @internal197 */198export function add64(arrayIntA: ArrayInt64, arrayIntB: ArrayInt64): ArrayInt64 {199  if (isZero64(arrayIntB)) {200    if (isZero64(arrayIntA)) {201      return clone64(Zero64)202    }203    return clone64(arrayIntA)204  }205  return substract64(arrayIntA, negative64(arrayIntB))206}207/**208 * Halve an ArrayInt64209 * @internal210 */211export function halve64(a: ArrayInt64): ArrayInt64 {212  return {213    sign: a.sign,214    data: [Math.floor(a.data[0] / 2), (a.data[0] % 2 === 1 ? 0x80000000 : 0) + Math.floor(a.data[1] / 2)]215  }216}217/**218 * Apply log2 to an ArrayInt64 (preserve sign)219 * @internal...

ArrayInt64Arbitrary.ts

Source:ArrayInt64Arbitrary.ts

1import { Random } from '../../random/generator/Random';2import { stream, Stream } from '../../stream/Stream';3import { Arbitrary } from '../../check/arbitrary/definition/Arbitrary';4import { Value } from '../../check/arbitrary/definition/Value';5import {6  add64,7  ArrayInt64,8  halve64,9  isEqual64,10  isStrictlyNegative64,11  isStrictlyPositive64,12  isStrictlySmaller64,13  isZero64,14  logLike64,15  substract64,16  Unit64,17  Zero64,18} from './helpers/ArrayInt64';19/** @internal */20class ArrayInt64Arbitrary extends Arbitrary<ArrayInt64> {21  private biasedRanges: { min: ArrayInt64; max: ArrayInt64 }[] | null = null;22  constructor(readonly min: ArrayInt64, readonly max: ArrayInt64) {23    super();24  }25  generate(mrng: Random, biasFactor: number | undefined): Value<ArrayInt64> {26    const range = this.computeGenerateRange(mrng, biasFactor);27    const uncheckedValue = mrng.nextArrayInt(range.min, range.max);28    if (uncheckedValue.data.length === 1) {29      // either 1 or 2, never 0 or >230      uncheckedValue.data.unshift(0); // prepend a zero31    }32    return new Value(uncheckedValue as ArrayInt64, undefined);33  }34  private computeGenerateRange(mrng: Random, biasFactor: number | undefined): { min: ArrayInt64; max: ArrayInt64 } {35    if (biasFactor === undefined || mrng.nextInt(1, biasFactor) !== 1) {36      return { min: this.min, max: this.max };37    }38    const ranges = this.retrieveBiasedRanges();39    if (ranges.length === 1) {40      return ranges[0];41    }42    const id = mrng.nextInt(-2 * (ranges.length - 1), ranges.length - 2); // 1st range has the highest priority43    return id < 0 ? ranges[0] : ranges[id + 1];44  }45  canShrinkWithoutContext(value: unknown): value is ArrayInt64 {46    const unsafeValue = value as ArrayInt64;47    return (48      typeof value === 'object' &&49      value !== null &&50      (unsafeValue.sign === -1 || unsafeValue.sign === 1) &&51      Array.isArray(unsafeValue.data) &&52      unsafeValue.data.length === 2 &&53      ((isStrictlySmaller64(this.min, unsafeValue) && isStrictlySmaller64(unsafeValue, this.max)) ||54        isEqual64(this.min, unsafeValue) ||55        isEqual64(this.max, unsafeValue))56    );57  }58  private shrinkArrayInt64(value: ArrayInt64, target: ArrayInt64, tryTargetAsap?: boolean): Stream<Value<ArrayInt64>> {59    const realGap = substract64(value, target);60    function* shrinkGen(): IterableIterator<Value<ArrayInt64>> {61      let previous: ArrayInt64 | undefined = tryTargetAsap ? undefined : target;62      const gap = tryTargetAsap ? realGap : halve64(realGap);63      for (let toremove = gap; !isZero64(toremove); toremove = halve64(toremove)) {64        const next = substract64(value, toremove);65        yield new Value(next, previous); // previous indicates the last passing value66        previous = next;67      }68    }69    return stream(shrinkGen());70  }71  shrink(current: ArrayInt64, context?: unknown): Stream<Value<ArrayInt64>> {72    if (!ArrayInt64Arbitrary.isValidContext(current, context)) {73      // No context:74      //   Take default target and shrink towards it75      //   Try the target on first try76      const target = this.defaultTarget();77      return this.shrinkArrayInt64(current, target, true);78    }79    if (this.isLastChanceTry(current, context)) {80      // Last chance try...81      // context is set to undefined, so that shrink will restart82      // without any assumptions in case our try find yet another bug83      return Stream.of(new Value(context, undefined));84    }85    // Normal shrink process86    return this.shrinkArrayInt64(current, context, false);87  }88  private defaultTarget(): ArrayInt64 {89    // min <= 0 && max >= 0   => shrink towards zero90    if (!isStrictlyPositive64(this.min) && !isStrictlyNegative64(this.max)) {91      return Zero64;92    }93    // min < 0                => shrink towards max (closer to zero)94    // otherwise              => shrink towards min (closer to zero)95    return isStrictlyNegative64(this.min) ? this.max : this.min;96  }97  private isLastChanceTry(current: ArrayInt64, context: ArrayInt64): boolean {98    // Last chance corresponds to scenario where shrink should be empty99    // But we try a last thing just in case it can work100    if (isZero64(current)) {101      return false;102    }103    if (current.sign === 1) {104      return isEqual64(current, add64(context, Unit64)) && isStrictlyPositive64(substract64(current, this.min));105    } else {106      return isEqual64(current, substract64(context, Unit64)) && isStrictlyNegative64(substract64(current, this.max));107    }108  }109  private static isValidContext(_current: ArrayInt64, context?: unknown): context is ArrayInt64 {110    // Context contains a value between zero and current that is known to be111    // the closer to zero passing value*.112    // *More precisely: our shrinker will not try something closer to zero113    if (context === undefined) {114      return false;115    }116    if (typeof context !== 'object' || context === null || !('sign' in context) || !('data' in context)) {117      throw new Error(`Invalid context type passed to ArrayInt64Arbitrary (#1)`);118    }119    return true;120  }121  private retrieveBiasedRanges(): { min: ArrayInt64; max: ArrayInt64 }[] {122    if (this.biasedRanges != null) {123      return this.biasedRanges;124    }125    if (isEqual64(this.min, this.max)) {126      this.biasedRanges = [{ min: this.min, max: this.max }];127      return this.biasedRanges;128    }129    const minStrictlySmallerZero = isStrictlyNegative64(this.min);130    const maxStrictlyGreaterZero = isStrictlyPositive64(this.max);131    if (minStrictlySmallerZero && maxStrictlyGreaterZero) {132      // min < 0 && max > 0133      const logMin = logLike64(this.min); // min !== 0   ->   <=0134      const logMax = logLike64(this.max); // max !== 0   ->   >=0135      this.biasedRanges = [136        { min: logMin, max: logMax }, // close to zero,137        { min: substract64(this.max, logMax), max: this.max }, // close to max138        { min: this.min, max: substract64(this.min, logMin) }, // close to min139      ];140    } else {141      // Either min < 0 && max <= 0142      // Or min >= 0, so max >= 0143      const logGap = logLike64(substract64(this.max, this.min)); // max-min !== 0  ->  >=0144      const arbCloseToMin = { min: this.min, max: add64(this.min, logGap) }; // close to min145      const arbCloseToMax = { min: substract64(this.max, logGap), max: this.max }; // close to max146      this.biasedRanges = minStrictlySmallerZero147        ? [arbCloseToMax, arbCloseToMin] // max is closer to zero148        : [arbCloseToMin, arbCloseToMax]; // min is closer to zero149    }150    return this.biasedRanges;151  }152}153/** @internal */154export function arrayInt64(min: ArrayInt64, max: ArrayInt64): Arbitrary<ArrayInt64> {155  const arb = new ArrayInt64Arbitrary(min, max);156  return arb;...

ArrayInt64.ts

Source:ArrayInt64.ts

...85/**86 * Negative version of an ArrayInt6487 * @internal88 */89export function negative64(arrayIntA: ArrayInt64): ArrayInt64 {90  return {91    sign: -arrayIntA.sign as -1 | 1,92    data: [arrayIntA.data[0], arrayIntA.data[1]],93  };94}95/**96 * Add two ArrayInt6497 * @returns When result is zero always with sign=198 * @internal99 */100export function add64(arrayIntA: ArrayInt64, arrayIntB: ArrayInt64): ArrayInt64 {101  if (isZero64(arrayIntB)) {102    if (isZero64(arrayIntA)) {103      return clone64(Zero64);104    }105    return clone64(arrayIntA);106  }107  return substract64(arrayIntA, negative64(arrayIntB));108}109/**110 * Halve an ArrayInt64111 * @internal112 */113export function halve64(a: ArrayInt64): ArrayInt64 {114  return {115    sign: a.sign,116    data: [Math.floor(a.data[0] / 2), (a.data[0] % 2 === 1 ? 0x80000000 : 0) + Math.floor(a.data[1] / 2)],117  };118}119/**120 * Apply log2 to an ArrayInt64 (preserve sign)121 * @internal...

Using AI Code Generation

1const fc = require("fast-check");2const { negative64 } = require("fast-check/lib/arbitrary/integer64Arbitrary");3const { integer64 } = require("fast-check/lib/arbitrary/integer64Arbitrary");4fc.assert(5  fc.property(6    integer64(),7    (a) => {8      const b = negative64(a);9      console.log(a, b);10      return true;11    },12    { verbose: true }13);

Using AI Code Generation

1const fc = require("fast-check");2const { negative64 } = require("fast-check/lib/arbitrary/negative64");3const arb = negative64();4const arb2 = fc.nat().map((n) => n * -1);5fc.assert(6  fc.property(arb, (a) => {7    console.log(a);8  })9);10fc.assert(11  fc.property(arb2, (a) => {12    console.log(a);13  })14);15const fc = require("fast-check");16const { negative64 } = require("fast-check/lib/arbitrary/negative64");17const arb = negative64();18const arb2 = fc.nat().map((n) => n * -1);19fc.assert(20  fc.property(arb, (a) => {21    console.log(a);22  })23);24fc.assert(25  fc.property(arb2, (a) => {26    console.log(a);27  })28);

Using AI Code Generation

1const fc = require('fast-check');2const { negative64 } = require('fast-check/lib/arbitrary/negative64');3const { convertFromNext } = require('fast-check/lib/check/arbitrary/definition/Converters');4const { convertToNext } = require('fast-check/lib/check/arbitrary/definition/Converters');5const negative64Arb = convertFromNext(convertToNext(negative64()));6fc.assert(fc.property(negative64Arb, (n) => n < 0));7const fc = require('fast-check');8const { negative64 } = require('fast-check/lib/arbitrary/negative64');9const { convertFromNext } = require('fast-check/lib/check/arbitrary/definition/Converters');10const { convertToNext } = require('fast-check/lib/check/arbitrary/definition/Converters');11const negative64Arb = convertFromNext(convertToNext(negative64()));12fc.assert(fc.property(negative64Arb, (n) => n < 0));13const fc = require('fast-check');14const { negative64 } = require('fast-check/lib/arbitrary/negative64');15const { convertFromNext } = require('fast-check/lib/check/arbitrary/definition/Converters');16const { convertToNext } = require('fast-check/lib/check/arbitrary/definition/Converters');17const negative64Arb = convertFromNext(convertToNext(negative64()));18fc.assert(fc.property(negative64Arb, (n) => n < 0));19const fc = require('fast-check');20const { negative64 } = require('fast-check/lib/arbitrary/negative64');21const { convertFromNext } = require('fast-check/lib/check/arbitrary/definition/Converters');22const { convertToNext } = require('fast-check/lib/check/arbitrary/definition/Converters');23const negative64Arb = convertFromNext(convertToNext(negative64()));24fc.assert(fc.property(negative

Using AI Code Generation

1let fastCheck = require('fast-check');2let negative64 = fastCheck.negative64;3let positive64 = fastCheck.positive64;4let integer64 = fastCheck.integer64;5let fc = require('fast-check');6let bigInt = require('big-integer');7let n = bigInt("18446744073709551616");8let p = bigInt("9223372036854775808");9let m = bigInt("-9223372036854775808");10let n64 = negative64();11let p64 = positive64();12let i64 = integer64();13console.log("n64: " + n64);14console.log("p64: " + p64);15console.log("i64: " + i64);16console.log("n64: " + n64.toString());17console.log("p64: " + p64.toString());18console.log("i64: " + i64.toString());19console.log("n64: " + n64.toString(16));20console.log("p64: " + p64.toString(16));21console.log("i64: " + i64.toString(16));22let n64b = n64.toJSNumber();23let p64b = p64.toJSNumber();24let i64b = i64.toJSNumber();25console.log("n64b: " + n64b);26console.log("p64b: " + p64b);27console.log("i64b: " + i64b);28console.log("n64b: " + n64b.toString(16));29console.log("p64b: " + p64b.toString(16));30console.log("i64b: " + i64b.toString(16));31console.log("n64b: " + n64b.toString(2));32console.log("p64b: " + p64b.toString(2));33console.log("i64b: " + i64b.toString(2));34console.log("n64b: " + n64b.toString(10));35console.log("p64b: " + p64b.toString(10));36console.log("i64b: " + i64b.toString(10));37console.log("n64b: " + n64b.toString(8));38console.log("p64b: " + p64b.toString(8));39console.log("i64b: " + i64b.toString(8));40console.log("n

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