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How to use customGen method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

Sampler.spec.ts

Source:Sampler.spec.ts

...78      fc.assert(79        fc.property(fc.integer(), fc.integer({ min: 1, max: MAX_NUM_RUNS }), (seed, runs) => {80          const logs: string[] = [];81          const classify = (g: number) => g.toString();82          statistics(customGen(), classify, { seed: seed, numRuns: runs, logger: (v: string) => logs.push(v) });83          expect(logs.length).not.toEqual(0); // at least one log84        })85      ));86    it('Should produce the same statistics given the same seed', () =>87      fc.assert(88        fc.property(fc.integer(), (seed) => {89          const logs1: string[] = [];90          const logs2: string[] = [];91          const classify = (g: number) => g.toString();92          statistics(customGen(), classify, { seed: seed, logger: (v: string) => logs1.push(v) });93          statistics(customGen(), classify, { seed: seed, logger: (v: string) => logs2.push(v) });94          expect(logs2).toEqual(logs1);95        })96      ));97    it('Should start log lines with labels', () =>98      fc.assert(99        fc.property(fc.integer(), (seed) => {100          const logs: string[] = [];101          const classify = (g: number) => `my_label_${g.toString()}!`;102          statistics(customGen(), classify, { seed: seed, logger: (v: string) => logs.push(v) });103          for (const l of logs) {104            expect(l).toMatch(/^my_label_(\d+)!\.+\d+\.\d+%$/); // my_label_123!.....DD%105          }106        })107      ));108    it('Should end log lines with percentage', () =>109      fc.assert(110        fc.property(fc.integer(), (seed) => {111          const logs: string[] = [];112          const classify = (g: number) => g.toString();113          statistics(customGen(), classify, { seed: seed, logger: (v: string) => logs.push(v) });114          for (const l of logs) {115            expect(l).toMatch(rePercent); // end by the measured percentage116          }117        })118      ));119    it('Should sum to 100% when provided a single classifier', () =>120      fc.assert(121        fc.property(fc.integer(), (seed) => {122          const logs: string[] = [];123          const classify = (g: number) => g.toString();124          statistics(customGen(), classify, { seed: seed, logger: (v: string) => logs.push(v) });125          const extractedPercents = logs.map((l) => parseFloat(rePercent.exec(l)![1]));126          const lowerBound = extractedPercents.reduce((p, c) => p + c - 0.01);127          const upperBound = extractedPercents.reduce((p, c) => p + c + 0.01);128          expect(lowerBound).toBeLessThanOrEqual(100);129          expect(upperBound).toBeGreaterThanOrEqual(100);130        })131      ));132    it('Should order percentages from the highest to the lowest', () =>133      fc.assert(134        fc.property(fc.integer(), (seed) => {135          const logs: string[] = [];136          const classify = (g: number) => g.toString();137          statistics(customGen(), classify, { seed: seed, logger: (v: string) => logs.push(v) });138          const extractedPercents = logs.map((l) => parseFloat(rePercent.exec(l)![1]));139          for (let idx = 1; idx < extractedPercents.length; ++idx) {140            expect(extractedPercents[idx - 1]).toBeGreaterThanOrEqual(extractedPercents[idx]);141          }142        })143      ));144    it('Should be able to handle multiple classifiers', () =>145      fc.assert(146        fc.property(fc.integer(), (seed) => {147          const logs: string[] = [];148          const classify = (g: number) => (g % 2 === 0 ? [`a::${g}`, `b::${g}`, `c::${g}`] : [`a::${g}`, `b::${g}`]);149          statistics(customGen(), classify, { seed: seed, logger: (v: string) => logs.push(v) });150          const extractedPercents = logs.map((l) => parseFloat(rePercent.exec(l)![1]));151          const lowerBound = extractedPercents.reduce((p, c) => p + c - 0.01);152          const upperBound = extractedPercents.reduce((p, c) => p + c + 0.01);153          expect(lowerBound).toBeLessThanOrEqual(300); // we always have a and b154          expect(upperBound).toBeGreaterThanOrEqual(200); // we can also have c155          const associatedWithA = logs156            .filter((l) => l.startsWith('a::'))157            .map((l) => l.slice(1))158            .sort();159          const associatedWithB = logs160            .filter((l) => l.startsWith('b::'))161            .map((l) => l.slice(1))162            .sort();163          expect(associatedWithB).toEqual(associatedWithA); // same logs for a:: and b::164        })165      ));166    it('Should not produce more logs than the number of classified values', () =>167      fc.assert(168        fc.property(fc.integer(), fc.integer({ min: 1, max: 100 }), (seed, mod) => {169          const logs: string[] = [];170          const classify = (g: number) => g.toString();171          statistics(customGen(mod), classify, { seed: seed, logger: (v: string) => logs.push(v) });172          expect(logs.length).toBeGreaterThanOrEqual(1); // at least one log173          expect(logs.length).toBeLessThanOrEqual(mod); // aggregate classified values together174        })175      ));176    it('Should not call arbitrary more times than the number of values required', () =>177      fc.assert(178        fc.property(fc.nat(MAX_NUM_RUNS), fc.integer(), (num, start) => {179          const classify = (g: number) => g.toString();180          const arb = stubArb.counter(start);181          statistics(arb, classify, { numRuns: num, logger: (_v: string) => {} });182          expect(arb.generatedValues).toHaveLength(num); // only call the arbitrary once per asked value183        })184      ));185  });...

app.js

Source:app.js

1const data = {2  "Post-1": {3    userId: 1,4    id: 1,5    title:6      "sunt aut facere repellat provident occaecati excepturi optio reprehenderit",7    body:8      "quia et suscipit\nsuscipit recusandae consequuntur expedita etcum\nreprehenderit molestiae ut ut quas totam\nnostrum rerum est autem sunt remeveniet architecto",9  },10  "Post-2": {11    userId: 1,12    id: 2,13    title: "qui est esse",14    body:15      "est rerum tempore vitae\nsequi sint nihil reprehenderit dolor beatae eadolore sneque\nfugiat blanditiis voluptate porro vel nihil molestiae ut reiciendis\nqui aperiam non  debitis possimus qui neque nisi nulla",16  },17  "Post-3": {18    userId: 1,19    id: 3,20    title: "ea molestias quasi exercitationem repellat qui ipsa sit aut",21    body:22      "et iusto sed quo iure\nvoluptatem occaecati omnis eligendi aut ad\nvoluptatem doloribus vel accusantium quis pariatur\nmolestiae porro eius odio et labore et velit aut",23  },24  "Post-4": {25    userId: 1,26    id: 4,27    title: "eum et est occaecati",28    body:29      "ullam et saepe reiciendis voluptatem adipisci\nsit amet autem assumenda provident rerum culpa\nquis hic commodi nesciunt rem tenetur doloremque ipsam iure\nquis sunt voluptatem rerum illo velit",30  },31};32// const data = {33//   name: "Lakha",34//   lastName: "Saini",35// };36// const customIterator = (data) => {37//   return {38//     [Symbol.iterator]: function () {39//       const keys = Object.keys(data);40//       let count = 0;41//       return {42//         next: function () {43//           while (count < keys.length) {44//             obj = { value: data[keys[count]], done: false };45//             count++;46//             return obj;47//           }48//           return { value: "undefined", done: true };49//         },50//       };51//     },52//   };53// };54// for (let i of customIterator(data)) {55//   //   console.log(i);56//   console.log(`Post Id ${i.id} Title ${i.title}`);57// }58// customIterator(data)[Symbol.iterator]().next().value;59function* gen(data) {60  const keys = Object.keys(data);61  let count = 0;62  while (count < keys.length) {63    yield data[keys[count]];64    count++;65  }66  return;67}68let customGen = gen(data);69console.log(customGen.next().value);70console.log(customGen.next().value);71console.log(customGen.next().value);72console.log(customGen.next().value);...

coroutine.js

Source:coroutine.js

1//ì ëë ì´í°ë¥¼ ì´ì©í ì½ë£¨í´2//ì½ë£¨í´ : í¨ìì ìë ìì ì ìì ìì¬ë¡ êµ¬ííë ê²3const log = console.log;4function *map(f, list) {5    for (const a of list){6        yield f(a);7    }8}9const add = a => a + 10;10const a = [1,2,3,4,5];11const customGen = map(add, a);12log(customGen.next());13log('1');14log(customGen.next());15log('2');16log(customGen.next());17log('3');18log(customGen.next());19log('4');20log(customGen.next());21log('5');22log(customGen.next());23const customGen1 = map(add, a);24log([...customGen1]);25function *gen(){26    yield 1027    if (false) yield 2028    yield 3029    return 9030    yield 4031}32let iter = gen();33log([...iter]);34iter = gen();...

Using AI Code Generation

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

Using AI Code Generation

1const fc = require('fast-check');2const { customGen } = require('fast-check-monorepo');3fc.assert(4  fc.property(customGen(), (v) => {5    return true;6  })7);8{9  "scripts": {10  },11  "dependencies": {12  },13  "devDependencies": {14  }15}

Using AI Code Generation

1const fc = require('fast-check');2const customGen = require('fast-check-monorepo');3describe('Test', () => {4  it('should pass', () => {5    fc.assert(fc.property(customGen(), (x) => x > 0));6  });7});8{9  "scripts": {10  },11  "dependencies": {12  },13  "devDependencies": {14  }15}16module.exports = {17  transform: {18  },19  testRegex: '(/__tests__/.*|(\\.|/)(test|spec))\\.tsx?$',20};21{22  "compilerOptions": {23    "paths": {24    }

Using AI Code Generation

1const fc = require("fast-check");2const { customGen } = require("fast-check-monorepo");3const customArb = customGen({ min: 0, max: 10 }, { min: 0, max: 10 });4fc.assert(5  fc.property(customArb, (value) => {6    const { a, b } = value;7    return a + b >= 0;8  })9);10const fc = require("fast-check");11const { customGen } = require("fast-check");12const customArb = customGen({ min: 0, max: 10 }, { min: 0, max: 10 });13fc.assert(14  fc.property(customArb, (value) => {15    const { a, b } = value;16    return a + b >= 0;17  })18);

Using AI Code Generation

1const fc = require('fast-check');2const { customGen } = require('fast-check-monorepo');3const { gen } = customGen(fc);4const { gen: gen2 } = require('fast-check-monorepo');5const { customGen } = require('fast-check');6const { gen } = customGen(fc);7const { gen: gen2 } = require('fast-check');8const fc = require('fast-check');9const { customGen } = require('fast-check-monorepo');10const { gen } = customGen(fc);11const { gen: gen2 } = require('fast-check-monorepo');12const { customGen } = require('fast-check');13const { gen } = customGen(fc);14const { gen: gen2 } = require('fast-check');15const fc = require('fast-check');16const { customGen } = require('fast-check-monorepo');17const { gen } = customGen(fc);18const { gen: gen2 } = require('fast-check-monorepo');19const { customGen } = require('fast-check');20const { gen } = customGen(fc);21const { gen: gen2 } = require('fast-check');22const fc = require('fast-check');23const { customGen } = require('fast-check-monorepo');24const { gen } = customGen(fc);25const { gen: gen2 } = require('fast-check-monorepo');26const { customGen } = require('fast-check');27const { gen } = customGen(fc);28const { gen: gen2 } = require('fast-check');29const fc = require('fast-check');30const { customGen } = require('fast-check-monorepo');31const { gen } = customGen(fc);32const { gen: gen2 } = require('fast-check-monorepo');33const { customGen } = require('fast-check');34const { gen } = customGen(fc);

Using AI Code Generation

1const fc = require('fast-check');2const { customGen } = require('fast-check-monorepo');3const myGen = customGen((size, ctx) => {4});5fc.assert(fc.property(myGen, (v) => {6}));7const fc = require('fast-check');8const { customGen } = require('fast-check-monorepo');9const myGen = customGen((size, ctx) => {10  const min = new Date(2020, 0, 1);11  const max = new Date(2020, 11, 31);12  return fc.date(min, max);13});14fc.assert(fc.property(myGen, (v) => {15}));16const fc = require('fast-check');17const { customGen } = require('fast-check-monorepo');18const myGen = customGen((size, ctx) => {19  const min = new Date(2020, 0, 1);20  const max = new Date(2020, 11, 31);21  return fc.array(fc.date(min, max));22});23fc.assert(fc.property(my

Using AI Code Generation

1const fc = require('fast-check');2const { customGen } = require('fast-check');3const myGen = customGen((mrng, size) => {4  const randomValue = mrng.nextInt();5  return {6    shrink: () => myGen.shrink(randomValue).map(v => ({ value: v, shrink: () => [] })),7  };8});9fc.assert(fc.property(myGen, v => v < 100));10const fc = require('fast-check');11const { customGen } = require('fast-check');12const myGen = customGen((mrng, size) => {13  const randomValue = mrng.nextInt();14  return {15    shrink: () => myGen.shrink(randomValue).map(v => ({ value: v, shrink: () => [] })),16  };17});18fc.assert(fc.property(myGen, v => v < 100));19    at Object.customGen (test2.js:7:21)20    at Object.<anonymous> (test2.js:19:11)21    at Module._compile (internal/modules/cjs/loader.js:1137:30)22    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1157:10)23    at Module.load (internal/modules/cjs/loader.js:985:32)24    at Function.Module._load (internal/modules/cjs/loader.js:878:14)25    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)

Using AI Code Generation

1const fc = require('fast-check');2const { customGen } = require('fast-check-monorepo');3const myGen = customGen({4});5fc.assert(fc.property(myGen, (myValue) => {6}));7const fc = require('fast-check');8const { customGen } = require('fast-check-monorepo');9const myGen2 = customGen({10});11fc.assert(fc.property(myGen2, (myValue) => {12}));13const fc = require('fast-check');14const { customGen } = require('fast-check-monorepo');15const myGen = customGen({16});17fc.assert(fc.property(myGen, (myValue) => {18}));19const fc = require('fast-check');20const { customGen } = require('fast-check-monorepo');21const myGen2 = customGen({22});23fc.assert(fc.property(myGen2, (myValue) => {24}));

Using AI Code Generation

1const { customGen } = require('fast-check-monorepo');2const myGen = customGen({3});4const myGen = customGen({5});6const { customGen } = require('fast-check-monorepo');7const myGen = customGen({8});9const myGen = customGen({10});11const { customGen } = require('fast-check-monorepo');12const myGen = customGen({13});14const myGen = customGen({15});16const { customGen } = require('fast-check-monorepo');17const myGen = customGen({18});19const myGen = customGen({20});21const { customGen } = require('fast-check-monorepo');22const myGen = customGen({23});24const myGen = customGen({25});26const { customGen } = require('fast-check-monorepo');27const myGen = customGen({28});29const myGen = customGen({30});31const { customGen } = require('fast-check-monorepo');32const myGen = customGen({33});34const myGen = customGen({35});36const { customGen } = require('fast-check-monorepo');37const myGen = customGen({38});39const myGen = customGen({40});41const { customGen } = require('fast-check-monorepo');42const myGen = customGen({43});

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