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How to use canShrinkWithoutContextIndex method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

FrequencyArbitrary.ts

Source:FrequencyArbitrary.ts

...71    }72    throw new Error(`Unable to generate from fc.frequency`);73  }74  canShrinkWithoutContext(value: unknown): value is T {75    return this.canShrinkWithoutContextIndex(value) !== -1;76  }77  shrink(value: T, context?: unknown): Stream<Value<T>> {78    if (context !== undefined) {79      const safeContext = context as _FrequencyArbitraryContext<T>;80      const selectedIndex = safeContext.selectedIndex;81      const originalBias = safeContext.originalBias;82      const originalArbitrary = this.warbs[selectedIndex].arbitrary;83      const originalShrinks = originalArbitrary84        .shrink(value, safeContext.originalContext)85        .map((v) => this.mapIntoValue(selectedIndex, v, null, originalBias));86      if (safeContext.clonedMrngForFallbackFirst !== null) {87        if (safeContext.cachedGeneratedForFirst === undefined) {88          safeContext.cachedGeneratedForFirst = this.safeGenerateForIndex(89            safeContext.clonedMrngForFallbackFirst,90            0,91            originalBias92          );93        }94        const valueFromFirst = safeContext.cachedGeneratedForFirst;95        return Stream.of(valueFromFirst).join(originalShrinks);96      }97      return originalShrinks;98    }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 */125  private canShrinkWithoutContextIndex(value: unknown): number {126    if (this.mustGenerateFirst()) {127      return this.warbs[0].arbitrary.canShrinkWithoutContext(value) ? 0 : -1;128    }129    try {130      ++this.context.depth; // increase depth131      for (let idx = 0; idx !== this.warbs.length; ++idx) {132        const warb = this.warbs[idx];133        if (warb.weight !== 0 && warb.arbitrary.canShrinkWithoutContext(value)) {134          return idx;135        }136      }137      return -1;138    } finally {139      --this.context.depth; // decrease depth (reset depth)...

Using AI Code Generation

1const fc = require('fast-check');2const { canShrinkWithoutContextIndex } = require('fast-check/lib/check/arbitrary/definition/ArbitraryWithContextualShrink');3const arb = fc.array(fc.integer(), 5, 10);4const shrink = arb.shrinkableFor([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);5console.log(canShrinkWithoutContextIndex(shrink));6const shrink2 = arb.shrinkableFor([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]);7console.log(canShrinkWithoutContextIndex(shrink2));8const shrink3 = arb.shrinkableFor([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]);9console.log(canShrinkWithoutContextIndex(shrink3));10const shrink4 = arb.shrinkableFor([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]);11console.log(canShrinkWithoutContextIndex(shrink4));12const shrink5 = arb.shrinkableFor([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14]);13console.log(canShrinkWithoutContextIndex(shrink5));14const shrink6 = arb.shrinkableFor([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]);15console.log(canShrinkWithoutContextIndex(shrink6));16const shrink7 = arb.shrinkableFor([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]);17console.log(canShrinkWithoutContextIndex(shrink7));

Using AI Code Generation

1const fc = require('fast-check');2const arb = fc.integer();3console.log(arb.canShrinkWithoutContextIndex());4const fc = require('fast-check');5const arb = fc.integer();6console.log(arb.canShrinkWithoutContext());7const fc = require('fast-check');8const arb = fc.integer();9console.log(arb.canShrinkWithoutContextIndex());10const fc = require('fast-check');11const arb = fc.integer();12console.log(arb.canShrinkWithoutContext());13const fc = require('fast-check');14const arb = fc.integer();15console.log(arb.canShrinkWithoutContextIndex());16const fc = require('fast-check');17const arb = fc.integer();18console.log(arb.canShrinkWithoutContext());19const fc = require('fast-check');20const arb = fc.integer();21console.log(arb.canShrinkWithoutContextIndex());22const fc = require('fast-check');23const arb = fc.integer();24console.log(arb.canShrinkWithoutContext());25const fc = require('fast-check');26const arb = fc.integer();27console.log(arb.canShrinkWithout

Using AI Code Generation

1const fc = require('fast-check');2const shrinkable = fc.shrinkableFor(42);3console.log(shrinkable.canShrinkWithoutContextIndex());4const fc = require('fast-check');5const shrinkable = fc.shrinkableFor(42);6console.log(shrinkable.canShrinkWithoutContextIndex());7node v12.16.1 (npm v6.13.4)8node v10.16.3 (npm v6.9.0)9node v8.16.2 (npm v6.4.1)10node v6.17.1 (npm v3.10.10)11node v4.9.1 (npm v2.15.11)12node v0.12.18 (npm v2.15.11)13node v0.10.48 (npm v1.4.28)14node v0.8.28 (npm v1.2.32)15node v0.6.21 (npm v1.1.70)16node v0.4.12 (npm v1.0.106)17node v0.1.100 (npm v1.0.27)

Using AI Code Generation

1const fc = require('fast-check');2const { canShrinkWithoutContextIndex } = require('fast-check/lib/check/arbitrary/definition/CanShrinkWithoutContextIndex.js');3const arb = fc.array(fc.integer());4const shrinkable = arb.generate(new fc.Random(42));5console.log(canShrinkWithoutContextIndex(shrinkable));6console.log(canShrinkWithoutContextIndex(shrinkable.value[0]));7const fc = require('fast-check');8const { canShrinkWithoutContextIndex } = require('fast-check/lib/check/arbitrary/definition/CanShrinkWithoutContextIndex.js');9const arb = fc.array(fc.integer());10const shrinkable = arb.generate(new fc.Random(42));11console.log(canShrinkWithoutContextIndex(shrinkable));12console.log(canShrinkWithoutContextIndex(shrinkable.value[0]));13const fc = require('fast-check');14const { canShrinkWithoutContextIndex } = require('fast-check/lib/check/arbitrary/definition/CanShrinkWithoutContextIndex.js');15const arb = fc.array(fc.integer());16const shrinkable = arb.generate(new fc.Random(42));17console.log(canShrinkWithoutContextIndex(shrinkable));18console.log(canShrinkWithoutContextIndex(shrinkable.value[0]));19const fc = require('fast-check');20const { canShrinkWithoutContextIndex } = require('fast-check/lib/check/arbitrary/definition/CanShrinkWithoutContextIndex.js');21const arb = fc.array(fc.integer());22const shrinkable = arb.generate(new fc.Random(42));23console.log(canShrinkWithoutContextIndex(shrinkable));24console.log(canSh

Using AI Code Generation

1const fc = require("fast-check");2const { canShrinkWithoutContextIndex } = require("fast-check/lib/check/arbitrary/definition/PreconditionFailure.js");3const testArray = [1, 2, 3, 4, 5];4const testArb = fc.array(fc.integer(1, 10));5const testShrink = testArb.shrink(testArray);6console.log(canShrinkWithoutContextIndex(testShrink));7const fc = require("fast-check");8const { canShrinkWithoutContextIndex } = require("fast-check/lib/check/arbitrary/definition/PreconditionFailure.js");9const testString = "test string";10const testArb = fc.stringOf(fc.char());11const testShrink = testArb.shrink(testString);12console.log(canShrinkWithoutContextIndex(testShrink));13const fc = require("fast-check");14const { canShrinkWithoutContextIndex } = require("fast-check/lib/check/arbitrary/definition/PreconditionFailure.js");15const testObject = { a: 1, b: 2, c: 3, d: 4, e: 5 };16const testArb = fc.object({ a: fc.integer(1, 10), b: fc.integer(1, 10), c: fc.integer(1, 10), d: fc.integer(1, 10), e: fc.integer(1, 10) });17const testShrink = testArb.shrink(testObject);18console.log(canShrinkWithoutContextIndex(testShrink));19const fc = require("fast-check");20const { canShrinkWithoutContextIndex } = require("fast-check/lib/check/arbitrary/definition/PreconditionFailure.js");21const testTuple = [1, "test string", { a

Using AI Code Generation

1const { canShrinkWithoutContextIndex, shrinkWithoutContextIndex } = require('fast-check');2const str = 'abc';3const canShrink = canShrinkWithoutContextIndex(str);4console.log('canShrink:', canShrink);5const shrunk = shrinkWithoutContextIndex(str);6console.log('shrunk:', shrunk);7const str2 = 'abbc';8const canShrink2 = canShrinkWithoutContextIndex(str2);9console.log('canShrink2:', canShrink2);10const shrunk2 = shrinkWithoutContextIndex(str2);11console.log('shrunk2:', shrunk2);12const str3 = 'abbbc';13const canShrink3 = canShrinkWithoutContextIndex(str3);14console.log('canShrink3:', canShrink3);15const shrunk3 = shrinkWithoutContextIndex(str3);16console.log('shrunk3:', shrunk3);17const str4 = 'abbbbc';18const canShrink4 = canShrinkWithoutContextIndex(str4);19console.log('canShrink4:', canShrink4);20const shrunk4 = shrinkWithoutContextIndex(str4);21console.log('shrunk4:', shrunk4);22const str5 = 'abbbbbbc';23const canShrink5 = canShrinkWithoutContextIndex(str5);24console.log('canShrink5:', canShrink5);25const shrunk5 = shrinkWithoutContextIndex(str5);26console.log('shrunk5:', shrunk5);27const str6 = 'abbbbbbbc';28const canShrink6 = canShrinkWithoutContextIndex(str6);29console.log('canShrink6:', canShrink6);30const shrunk6 = shrinkWithoutContextIndex(str6);31console.log('shrunk6:', shrunk6);32const str7 = 'abbbbbbbbc';33const canShrink7 = canShrinkWithoutContextIndex(str7);34console.log('canShrink7:', canShrink7);35const shrunk7 = shrinkWithoutContextIndex(str7);36console.log('shrunk7:', shrunk7);37const str8 = 'abbbbbbbbbbc';38const canShrink8 = canShrinkWithoutContextIndex(str8);39console.log('canShrink8:', canShrink8);

Using AI Code Generation

1const { canShrinkWithoutContextIndex } = require('./canShrinkWithoutContextIndex.js');2const arrayToShrink = [1, 2, 3, 4];3const canShrink = canShrinkWithoutContextIndex(arrayToShrink);4console.log(canShrink);5const { canShrinkWithoutContextIndex } = require('./canShrinkWithoutContextIndex.js');6const arrayToShrink = [1, 2, 3, 4];7const canShrink = canShrinkWithoutContextIndex(arrayToShrink);8console.log(canShrink);9const { canShrinkWithoutContextIndex } = require('./canShrinkWithoutContextIndex.js');10const arrayToShrink = [1, 2, 3, 4];11const canShrink = canShrinkWithoutContextIndex(arrayToShrink);12console.log(canShrink);

Using AI Code Generation

1const fc = require('fast-check');2const shrinkArray = (arr) => {3  const result = [];4  for (const a of arr) {5    result.push(a);6  }7  return result;8};9const shrinkArrayWithoutContextIndex = (arr) => {10  const result = [];11  for (const a of arr) {12    result.push(a);13  }14  return result;15};16const maxArraySize = 10;17const shrinkArrayWithoutContextIndexWithMaxSize = (arr) => {18  const result = [];19  for (const a of arr) {20    result.push(a);21  }22  return result;23};24const shrinkArrayWithMaxSize = (arr) => {25  const result = [];26  for (const a of arr) {27    result.push(a);28  }29  return result;30};31const shrinkArrayWithoutContextIndexWithMaxSizeAndWithoutContextIndex = (arr) => {32  const result = [];33  for (const a of arr) {34    result.push(a);35  }36  return result;37};38const shrinkArrayWithMaxSizeAndWithoutContextIndex = (arr) => {39  const result = [];40  for (const a of arr) {41    result.push(a);42  }43  return result;44};45const shrinkArrayWithoutContextIndexWithMaxSizeAndWithoutContextIndexAndShrink = (arr) => {46  const result = [];47  for (const a of arr) {48    result.push(a);49  }50  return result;51};52const shrinkArrayWithMaxSizeAndWithoutContextIndexAndShrink = (arr) => {53  const result = [];54  for (const a of arr) {55    result.push(a);56  }57  return result;58};59const shrinkArrayWithoutContextIndexWithMaxSizeAndWithoutContextIndexAndShrinkAndContextIndex = (arr) => {60  const result = [];61  for (const a of arr) {62    result.push(a);63  }64  return result;65};66const shrinkArrayWithMaxSizeAndWithoutContextIndexAndShrinkAndContextIndex = (arr) => {67  const result = [];68  for (const a of arr) {69    result.push(a);70  }71  return result;72};73const shrinkArrayWithoutContextIndexWithMaxSizeAndWithoutContextIndexAndShrinkAndContextIndexAndShrink = (arr) => {74  const result = [];75  for (const

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