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How to use defaultShrinkForFirst method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

FrequencyArbitrary.ts

Source:FrequencyArbitrary.ts

...99    const potentialSelectedIndex = this.canShrinkWithoutContextIndex(value);100    if (potentialSelectedIndex === -1) {101      return Stream.nil(); // No arbitrary found to accept this value102    }103    return this.defaultShrinkForFirst(potentialSelectedIndex).join(104      this.warbs[potentialSelectedIndex].arbitrary105        .shrink(value, undefined) // re-checked by canShrinkWithoutContextIndex106        .map((v) => this.mapIntoValue(potentialSelectedIndex, v, null, undefined))107    );108  }109  /** Generate shrink values for first arbitrary when no context and no value was provided */110  private defaultShrinkForFirst(selectedIndex: number): Stream<Value<T>> {111    ++this.context.depth; // increase depth112    try {113      if (!this.mustFallbackToFirstInShrink(selectedIndex) || this.warbs[0].fallbackValue === undefined) {114        // Not applicable: no fallback to first arbitrary on shrink OR no hint to shrink without an initial value and context115        return Stream.nil();116      }117    } finally {118      --this.context.depth; // decrease depth (reset depth)119    }120    // The arbitrary at [0] accepts to shrink fallbackValue.default without any context (context=undefined)121    const rawShrinkValue = new Value(this.warbs[0].fallbackValue.default, undefined);122    return Stream.of(this.mapIntoValue(0, rawShrinkValue, null, undefined));123  }124  /** Extract the index of the generator that would have been able to gennrate the value */...

Using AI Code Generation

1const { defaultShrinkForFirst } = require('fast-check');2const { defaultShrinkForFirst: defaultShrinkForFirst2 } = require('fast-check-monorepo');3console.log(defaultShrinkForFirst);4console.log(defaultShrinkForFirst2);5const { defaultShrinkForFirst } = require('fast-check');6const { defaultShrinkForFirst: defaultShrinkForFirst2 } = require('fast-check-monorepo');7console.log(defaultShrinkForFirst);8console.log(defaultShrinkForFirst2);

Using AI Code Generation

1const fc = require('fast-check');2const { defaultShrinkForFirst } = require('fast-check-monorepo');3const { defaultShrinkForFirst: defaultShrinkForFirst2 } = require('fast-check');4fc.assert(5  fc.property(fc.integer(), fc.integer(), (a, b) => {6    console.log('a', a);7    console.log('b', b);8    return a + b === b + a;9  }),10  { seed: 42, numRuns: 100, verbose: true, shrinker: defaultShrinkForFirst }11);12fc.assert(13  fc.property(fc.integer(), fc.integer(), (a, b) => {14    console.log('a', a);15    console.log('b', b);16    return a + b === b + a;17  }),18  { seed: 42, numRuns: 100, verbose: true, shrinker: defaultShrinkForFirst2 }19);20const fc = require('fast-check');21const { defaultShrinkForFirst } = require('fast-check-monorepo');22const { defaultShrinkForFirst: defaultShrinkForFirst2 } = require('fast-check');23fc.assert(24  fc.property(fc.integer(), fc.integer(), (a, b) => {25    console.log('a', a);26    console.log('b', b);27    return a + b === b + a;28  }),29  { seed: 42, numRuns: 100, verbose: true, shrinker: defaultShrinkForFirst }30);31fc.assert(32  fc.property(fc.integer(), fc.integer(), (a, b) => {33    console.log('a', a);34    console.log('b', b);35    return a + b === b + a;36  }),37  { seed: 42, numRuns: 100, verbose: true, shrinker: defaultShrinkForFirst2 }38);39const fc = require('fast-check-monorepo');40const { defaultShrinkForFirst } = require('fast-check-monorepo');41const { defaultShrinkForFirst: defaultShrinkForFirst2 } = require('fast-check');42fc.assert(43  fc.property(fc.integer(), fc.integer(), (a

Using AI Code Generation

1const { defaultShrinkForFirst } = require('fast-check');2describe('test3', () => {3  it('defaultShrinkForFirst', () => {4    const fc = require('fast-check');5    fc.assert(6      fc.property(fc.integer(), fc.integer(), (a, b) => {7        return a + b === b + a;8      }),9      { seed: 42, numRuns: 100, verbose: true, endOnFailure: true, path: 'test3.js' },10    );11  });12});13const { defaultShrinkForFirst } = require('fast-check');14describe('test4', () => {15  it('defaultShrinkForFirst', () => {16    const fc = require('fast-check');17    fc.assert(18      fc.property(fc.integer(), fc.integer(), (a, b) => {19        return a + b === b + a;20      }),21      { seed: 42, numRuns: 100, verbose: true, endOnFailure: true, path: 'test4.js' },22    );23  });24});25const { defaultShrinkForFirst } = require('fast-check');26describe('test5', () => {27  it('defaultShrinkForFirst', () => {28    const fc = require('fast-check');29    fc.assert(30      fc.property(fc.integer(), fc.integer(), (a, b) => {31        return a + b === b + a;32      }),33      { seed: 42, numRuns: 100, verbose: true, endOnFailure: true, path: 'test5.js' },34    );35  });36});37const { defaultShrinkForFirst } = require('fast-check');38describe('test6', () => {39  it('defaultShrinkForFirst', () => {40    const fc = require('fast-check');41    fc.assert(42      fc.property(fc.integer(), fc.integer(), (a, b) => {43        return a + b === b + a;44      }),45      { seed: 42, numRuns: 100, verbose: true, end

Using AI Code Generation

1const { defaultShrinkForFirst } = require('fast-check')2const { default: fc } = require('fast-check')3const { default: fc1 } = require('fast-check')4const { default: fc2 } = require('fast-check')5const { default: fc3 } = require('fast-check')6const { default: fc4 } = require('fast-check')7const { default: fc5 } = require('fast-check')8const { default: fc6 } = require('fast-check')9const { default: fc7 } = require('fast-check')10const { default: fc8 } = require('fast-check')11const { default: fc9 } = require('fast-check')12const { default: fc10 } = require('fast-check')13const { default: fc11 } = require('fast-check')14const { default: fc12 } = require('fast-check')15const { default: fc13 } = require('fast-check')16const { default: fc14 } = require('fast-check')17const { default: fc15 } = require('fast-check')18const { default: fc16 } = require('fast-check')19const { default: fc17 } = require('fast-check')20const { default: fc18 } = require('fast-check')21const { default: fc19 } = require('fast-check')22const { default: fc20 } = require('fast-check')23const { default: fc21 } = require('fast-check')24const { default: fc22 } = require('fast-check')25const { default: fc23 } = require('fast-check')26const { default: fc24 } = require('fast-check')27const { default: fc25 } = require('fast-check')28const { default: fc26 } = require('fast-check')29const { default: fc27 } = require('fast-check')30const { default: fc28 } = require('fast-check')31const { default: fc29 } = require('fast-check')32const { default: fc30 } = require('fast-check')33const { default: fc31 } = require('fast-check')34const { default: fc32 } = require('fast-check')35const { default: fc33 } = require('fast-check')36const { default: fc34 } = require('fast-check')37const { default: fc35 } = require('fast-check')38const { default: fc36 } = require('fast-check')39const { default:

Using AI Code Generation

1import { defaultShrinkForFirst } from 'fast-check-monorepo';2export function test3() {3  const shrink = defaultShrinkForFirst((v) => v === 42);4  console.log(shrink(42));5  console.log(shrink(41));6  console.log(shrink(43));7}8import { defaultShrinkForFirst } from 'fast-check-monorepo';9export function test4() {10  const shrink = defaultShrinkForFirst((v) => v === 42);11  console.log(shrink(42));12  console.log(shrink(41));13  console.log(shrink(43));14}15import { defaultShrinkForFirst } from 'fast-check-monorepo';16export function test5() {17  const shrink = defaultShrinkForFirst((v) => v === 42);18  console.log(shrink(42));19  console.log(shrink(41));20  console.log(shrink(43));21}22import { defaultShrinkForFirst } from 'fast-check-monorepo';23export function test6() {24  const shrink = defaultShrinkForFirst((v) => v === 42);25  console.log(shrink(42));26  console.log(shrink(41));27  console.log(shrink(43));28}29import { defaultShrinkForFirst } from 'fast-check-monorepo';30export function test7() {31  const shrink = defaultShrinkForFirst((v) => v === 42);32  console.log(shrink(42));33  console.log(shrink(41));34  console.log(shrink(43));35}36import { defaultShrinkForFirst } from 'fast-check-monorepo';37export function test8() {38  const shrink = defaultShrinkForFirst((v) => v === 42);39  console.log(shrink(42));40  console.log(shrink

Using AI Code Generation

1const fc = require("fast-check");2const { defaultShrinkForFirst } = require("fast-check-monorepo");3const arb = fc.tuple(fc.string(), fc.integer());4const arbShrink = defaultShrinkForFirst(arb);5fc.assert(6  fc.property(arbShrink, ([s, i]) => {7    return s.length <= i;8  })9);10const fc = require("fast-check");11const { defaultShrinkForFirst } = require("fast-check-monorepo");12const arb = fc.tuple(fc.string(), fc.integer());13const arbShrink = defaultShrinkForFirst(arb);14fc.assert(15  fc.property(arbShrink, ([s, i]) => {16    return s.length <= i;17  })18);19const fc = require("fast-check");20const { defaultShrinkForFirst } = require("fast-check-monorepo");21const arb = fc.tuple(fc.string(), fc.integer());22const arbShrink = defaultShrinkForFirst(arb);23fc.assert(24  fc.property(arbShrink, ([s, i]) => {25    return s.length <= i;26  })27);28const fc = require("fast-check");29const { defaultShrinkForFirst } = require("fast-check-monorepo");30const arb = fc.tuple(fc.string(), fc.integer());31const arbShrink = defaultShrinkForFirst(arb);32fc.assert(33  fc.property(arbShrink, ([s, i]) => {34    return s.length <= i;35  })36);

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