KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference

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);

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.