Best JavaScript code snippet using fast-check-monorepo
memo.spec.ts
Source:memo.spec.ts  
1import { memo } from '../../../src/arbitrary/memo';2import { fakeArbitrary } from './__test-helpers__/ArbitraryHelpers';3import { fakeRandom } from './__test-helpers__/RandomHelpers';4describe('memo', () => {5  it('should return the produced instance of arbitrary', () => {6    // Arrange7    const { instance: expectedArb } = fakeArbitrary();8    const builder = memo(() => expectedArb);9    // Act10    const arb = builder();11    // Assert12    expect(arb).toBe(expectedArb);13  });14  it('should cache arbitraries associated to each depth', () => {15    // Arrange16    const builder = memo(() => fakeArbitrary().instance);17    // Act18    const arb = builder();19    // Assert20    expect(builder(10)).toBe(builder(10));21    expect(builder(42)).toBe(builder(42));22    expect(builder(65500)).toBe(builder(65500));23    expect(builder()).toBe(arb);24  });25  it('should instantiate new arbitraries for each depth', () => {26    // Arrange27    const builder = memo(() => fakeArbitrary().instance);28    // Act29    const b10 = builder(10);30    const b42 = builder(42);31    // Assert32    expect(b10).not.toBe(b42);33  });34  it('should consider no depth as depth 10', () => {35    // Arrange36    const builder = memo(() => fakeArbitrary().instance);37    // Act38    const bDefault = builder();39    const b10 = builder(10);40    // Assert41    expect(bDefault).toBe(b10);42  });43  it('should automatically decrease depth for self recursive', () => {44    // Arrange45    const { instance: expectedArb } = fakeArbitrary();46    const memoFun = jest.fn();47    const builder = memo(memoFun);48    memoFun.mockImplementation((n) => (n <= 6 ? expectedArb : builder()));49    // Act50    builder();51    // Assert52    expect(memoFun.mock.calls).toEqual([[10], [9], [8], [7], [6]]);53  });54  it('should automatically interleave decrease depth for mutually recursive', () => {55    // Arrange56    const { instance: expectedArb } = fakeArbitrary();57    const memoFunA = jest.fn();58    const memoFunB = jest.fn();59    const builderA = memo(memoFunA);60    const builderB = memo(memoFunB);61    memoFunA.mockImplementation((n) => (n <= 6 ? expectedArb : builderB()));62    memoFunB.mockImplementation((n) => (n <= 6 ? expectedArb : builderA()));63    // Act64    builderA();65    // Assert66    expect(memoFunA.mock.calls).toEqual([[10], [8], [6]]);67    expect(memoFunB.mock.calls).toEqual([[9], [7]]);68  });69  it('should be able to override decrease depth', () => {70    // Arrange71    const { instance: expectedArb } = fakeArbitrary();72    const memoFun = jest.fn();73    const builder = memo(memoFun);74    memoFun.mockImplementation((n) => (n <= 0 ? expectedArb : builder(n - 3)));75    // Act76    builder();77    // Assert78    expect(memoFun.mock.calls).toEqual([[10], [7], [4], [1], [-2]]);79  });80  it('should be able to delay calls to sub-builders', () => {81    // Arrange82    const expectedBiasedFactor = 42;83    const { instance: simpleArb, generate } = fakeArbitrary();84    const { instance: mrng } = fakeRandom();85    // Act86    const builderA = memo(() => {87      const { instance: arbA, generate: generateA } = fakeArbitrary();88      generateA.mockImplementation((mrng, biasedFactor) => builderB().generate(mrng, biasedFactor));89      return arbA;90    });91    const builderB = memo(() => simpleArb);92    expect(generate).not.toHaveBeenCalled();93    builderA().generate(mrng, expectedBiasedFactor);94    // Assert95    expect(generate).toHaveBeenCalledWith(mrng, expectedBiasedFactor);96  });...Using AI Code Generation
1const fastCheck = require('fast-check');2const memoFunB = require('fast-check-monorepo/dist/lib/check/arbitrary/MemoArbitrary').memoFunB;3const memoFun = require('fast-check-monorepo/dist/lib/check/arbitrary/MemoArbitrary').memoFun;4const memo = require('fast-check-monorepo/dist/lib/check/arbitrary/MemoArbitrary').memo;5const memoB = require('fast-check-monorepo/dist/lib/check/arbitrary/MemoArbitrary').memoB;6const arb = fastCheck.integer(0, 100);7const arbMemo = memoFunB((n) => fastCheck.integer(0, n), arb);8arbMemo.sample(10).map((sample) => console.log(sample));9const fastCheck = require('fast-check');10const memoFun = require('fast-check/dist/lib/check/arbitrary/MemoArbitrary').memoFun;11const memo = require('fast-check/dist/lib/check/arbitrary/MemoArbitrary').memo;12const arb = fastCheck.integer(0, 100);13const arbMemo = memoFun((n) => fastCheck.integer(0, n), arb);14arbMemo.sample(10).map((sample) => console.log(sample));Using AI Code Generation
1import { memoFunB } from 'fast-check';2const memoizedFunction = memoFunB((a: number, b: number) => a + b);3console.log(memoizedFunction(1, 2));4console.log(memoizedFunction(1, 2));5import { memoFunB } from 'fast-check';6const memoizedFunction = memoFunB((a: number, b: number) => a + b);7console.log(memoizedFunction(1, 2));8console.log(memoizedFunction(1, 2));9const obj = { a: 1, b: 2 };10console.log(JSON.stringify(obj) === JSON.stringify({ b: 2, a: 1 }));11`${JSON.stringify(a)}-${JSON.stringify(b)}`;Using AI Code Generation
1const { memoFunB } = require('fast-check-monorepo');2const memoizedFun = memoFunB((a, b) => a + b);3const { memoFunB } = require('fast-check');4const memoizedFun = memoFunB((a, b) => a + b);5const { memoFunB } = require('fast-check');6const memoizedFun = memoFunB((a, b) => a + b);7const { memoFunB } = require('fast-check');8const memoizedFun = memoFunB((a, b) => a + b);9const { memoFunB } = require('fast-check');10const memoizedFun = memoFunB((a, b) => a + b);11const { memoFunB } = require('fast-check');12const memoizedFun = memoFunB((a, b) => a + b);Using AI Code Generation
1const { memoFunB } = require("fast-check-monorepo");2const memoFunB = memoFunB((a, b) => a + b, { cacheSize: 1000 });3memoFunB(1, 2);4const { memoFunB } = require("fast-check-monorepo");5const memoFunB = memoFunB((a, b) => a + b, { cacheSize: 1000 });6memoFunB(1, 2);7const { memoFunB } = require("fast-check-monorepo");8const memoFunB = memoFunB((a, b) => a + b, { cacheSize: 1000 });9memoFunB(1, 2);10const { memoFunB } = require("fast-check-monorepo");11const memoFunB = memoFunB((a, b) => a + b, { cacheSize: 1000 });12memoFunB(1, 2);13const { memoFunB } = require("fast-check-monorepo");14const memoFunB = memoFunB((a, b) => a + b, { cacheSize: 1000 });15memoFunB(1, 2);16const { memoFunB } = require("fast-check-monorepo");17const memoFunB = memoFunB((a, b) => a + b, { cacheSize: 1000 });18memoFunB(1, 2);19const { memoFunB } = require("fast-check-monorepo");20const memoFunB = memoFunB((a, b) => a + b, { cacheSize: 1000 });21memoFunB(1, 2);Using AI Code Generation
1const memoFunB = require('fast-check/lib/check/arbitrary/MemoArbitraryWrapper').memoFunB;2const memoB = memoFunB((x) => x + 1);3console.log(memoB(1));4const memoFunA = require('fast-check/lib/check/arbitrary/MemoArbitraryWrapper').memoFunA;5const memoA = memoFunA((x) => x + 1);6console.log(memoA(1));7const memoFunB = require('fast-check/lib/check/arbitrary/MemoArbitraryWrapper').memoFunB;8const memoB = memoFunB((x) => x + 1);9console.log(memoB(1));10const memoFunA = require('fast-check/lib/check/arbitrary/MemoArbitraryWrapper').memoFunA;11const memoA = memoFunA((x) => x + 1);12console.log(memoA(1));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.
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