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How to use assertNoPoisoning method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

ArbitraryAssertions.ts

Source:ArbitraryAssertions.ts

...8import { sizeArb } from './SizeHelpers';9function poisoningAfterEach(nestedAfterEach: () => void) {10  nestedAfterEach();11  try {12    assertNoPoisoning({ ignoredRootRegex: /^__coverage__$/ });13  } catch (err) {14    restoreGlobals({ ignoredRootRegex: /^__coverage__$/ });15    throw err;16  }17}18// Minimal requirements19// > The following assertions are supposed to be fulfilled by any of the arbitraries20// > provided by fast-check.21export function assertProduceSameValueGivenSameSeed<T, U = never>(22  arbitraryBuilder: (extraParameters: U) => Arbitrary<T>,23  options: {24    isEqual?: (v1: T, v2: T, extraParameters: U) => void | boolean;25    noInitialContext?: boolean;26    extraParameters?: fc.Arbitrary<U>;...

main.spec.ts

Source:main.spec.ts

1import { assertNoPoisoning, restoreGlobals } from '../src/main.js';2describe('assertNoPoisoning', () => {3  it('should not throw any Error if no poisoning occurred', () => {4    // Arrange / Act / Assert5    expect(() => assertNoPoisoning()).not.toThrow();6    restoreGlobals();7    expect(() => assertNoPoisoning()).not.toThrow();8  });9  it('should throw an Error if new global appeared and be able to revert the change', () => {10    // Arrange11    // eslint-disable-next-line @typescript-eslint/ban-ts-comment12    // @ts-ignore13    globalThis.a = 'Hello';14    // Act / Assert15    try {16      expect(() => assertNoPoisoning()).toThrowError(/Poisoning detected/);17      restoreGlobals();18      expect(() => assertNoPoisoning()).not.toThrow();19    } finally {20      // eslint-disable-next-line @typescript-eslint/ban-ts-comment21      // @ts-ignore22      delete globalThis.a;23    }24  });25  it('should throw an Error if global removed and be able to revert the change', () => {26    // Arrange27    const F = globalThis.Function;28    // eslint-disable-next-line @typescript-eslint/ban-ts-comment29    // @ts-ignore30    delete globalThis.Function;31    // Act / Assert32    try {33      expect(() => assertNoPoisoning()).toThrowError(/Poisoning detected/);34      restoreGlobals();35      expect(() => assertNoPoisoning()).not.toThrow();36    } finally {37      globalThis.Function = F;38    }39  });40  it('should throw an Error if global altered via globalThis and be able to revert the change', () => {41    // Arrange42    const F = globalThis.Function;43    globalThis.Function = jest.fn();44    // Act / Assert45    try {46      expect(() => assertNoPoisoning()).toThrowError(/Poisoning detected/);47      restoreGlobals();48      expect(() => assertNoPoisoning()).not.toThrow();49    } finally {50      globalThis.Function = F;51    }52  });53  it('should throw an Error if global value altered and be able to revert the change', () => {54    // Arrange55    const F = Function;56    // eslint-disable-next-line no-global-assign57    Function = jest.fn();58    // Act / Assert59    try {60      expect(() => assertNoPoisoning()).toThrowError(/Poisoning detected/);61      restoreGlobals();62      expect(() => assertNoPoisoning()).not.toThrow();63    } finally {64      // eslint-disable-next-line no-global-assign65      Function = F;66    }67  });68  it('should throw an Error if globalThis gets changed into another type and be able to revert the change', () => {69    // Arrange70    const G = globalThis;71    (globalThis as any) = 1;72    // Act / Assert73    let error: unknown = undefined;74    try {75      assertNoPoisoning();76    } catch (err) {77      error = err;78    }79    if (error === undefined) {80      (globalThis as any) = G;81      throw new Error('No error has been thrown');82    }83    if (!/Poisoning detected/.test((error as Error).message)) {84      (globalThis as any) = G;85      throw new Error(`Received error does not fulfill expectations, got: ${error}`);86    }87    try {88      restoreGlobals();89      expect(() => assertNoPoisoning()).not.toThrow();90    } finally {91      (globalThis as any) = G;92    }93  });94  it('should be able to handle highly destructive changes removing important primitives', () => {95    // Arrange96    const own = Object.getOwnPropertyNames;97    function dropAll<T>(name: string, obj: T): void {98      let numDeleted = 0;99      for (const k of own(obj)) {100        try {101          // eslint-disable-next-line @typescript-eslint/ban-ts-comment102          // @ts-ignore103          delete obj[k];104          ++numDeleted;105        } catch (err) {106          // Object.prototype cannot be deleted, and others might too107        }108      }109      if (numDeleted === 0) {110        throw new Error(`No property has been deleted from ${name}`);111      }112    }113    dropAll('Object.prototype', Object.prototype);114    dropAll('Object', Object);115    dropAll('Array.prototype', Array.prototype);116    dropAll('Array', Array);117    dropAll('Set.prototype', Set.prototype);118    dropAll('Set', Set);119    dropAll('Map.prototype', Map.prototype);120    dropAll('Map', Map);121    dropAll('Function.prototype', Function.prototype);122    dropAll('Function', Function);123    dropAll('Error.prototype', Error.prototype);124    dropAll('Error', Error);125    // Act / Assert126    // Manual expectation mimicing "expect(() => assertNoPoisoning()).toThrowError(/Poisoning detected/)"127    // as Jest makes use of Object.keys and probably others in its code128    let caughtError: unknown = undefined;129    try {130      assertNoPoisoning();131    } catch (err) {132      caughtError = err;133    }134    if (caughtError === undefined) {135      throw new Error('Expected an error be thrown during the test');136    }137    if (!(caughtError instanceof Error)) {138      throw new Error('Expected an error of type Error to be thrown during the test');139    }140    restoreGlobals();141    expect(() => assertNoPoisoning()).not.toThrow();142    // WARNING: If restoreGlobals failed, then this test may break others143  });...

main.ts

Source:main.ts

...47 * Here are some examples of such changes:48 * - someone added a new global on `window` (browser case) or `global` (node case) or modern `globalThis` (everywhere)49 * - someone changed `Array.prototype.map` into another function50 */51export function assertNoPoisoning(options?: ExtraOptions): void {52  const diffs = trackDiffsOnGlobalsBasedOnOptions(options);53  if (diffs.length !== 0) {54    let impactedElements = diffs[0].fullyQualifiedKeyName;55    for (let index = 1; index !== diffs.length; ++index) {56      impactedElements += ', ' + diffs[index].fullyQualifiedKeyName;57    }58    throw new Error('Poisoning detected on ' + impactedElements);59  }...

Using AI Code Generation

1const {assertNoPoisoning} = require('fast-check-generators');2const {string} = require('fast-check-generators');3assertNoPoisoning(string());4const {assertNoPoisoning} = require('fast-check-generators');5const {string} = require('fast-check-generators');6assertNoPoisoning(string());7const {assertNoPoisoning} = require('fast-check-generators');8const {string} = require('fast-check-generators');9assertNoPoisoning(string());10const {assertNoPoisoning} = require('fast-check-generators');11const {string} = require('fast-check-generators');12assertNoPoisoning(string());13const {assertNoPoisoning} = require('fast-check-generators');14const {string} = require('fast-check-generators');15assertNoPoisoning(string());16const {assertNoPoisoning} = require('fast-check-generators');17const {string} = require('fast-check-generators');18assertNoPoisoning(string());19const {assertNoPoisoning} = require('fast-check-generators');20const {string} = require('fast-check-generators');21assertNoPoisoning(string());

Using AI Code Generation

1const fc = require('fast-check');2const assertNoPoisoning = require('fast-check-monorepo');3const { assert } = require('chai');4describe('Test', () => {5  it('should not be poisoned', () => {6    assertNoPoisoning(fc);7  });8});9const fc = require('fast-check');10const assertNoPoisoning = require('fast-check-monorepo');11const { assert } = require('chai');12describe('Test', () => {13  it('should not be poisoned', () => {14    assertNoPoisoning(fc);15  });16});17const fc = require('fast-check');18const assertNoPoisoning = require('fast-check-monorepo');19const { assert } = require('chai');20describe('Test', () => {21  it('should not be poisoned', () => {22    assertNoPoisoning(fc);23  });24});25const fc = require('fast-check');26const assertNoPoisoning = require('fast-check-monorepo');27const { assert } = require('chai');28describe('Test', () => {29  it('should not be poisoned', () => {30    assertNoPoisoning(fc);31  });32});33const fc = require('fast-check');34const assertNoPoisoning = require('fast-check-monorepo');35const { assert } = require('chai');36describe('Test', () => {37  it('should not be poisoned', () => {38    assertNoPoisoning(fc);39  });40});41const fc = require('fast-check');42const assertNoPoisoning = require('fast-check-monorepo');43const { assert } = require('chai');44describe('Test', () => {45  it('should not be poisoned', () => {46    assertNoPoisoning(fc);47  });48});

Using AI Code Generation

1const { assertNoPoisoning } = require('fast-check-monorepo');2assertNoPoisoning();3console.log('no poisoning detected');4{5  "scripts": {6  },7  "dependencies": {8  }9}10{}11{12}13{14}15{16        {17            "program": "${workspaceFolder}/test.js"18        }19}20{

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