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How to use MemoryLeak method in Mocha

Best JavaScript code snippet using mocha

server.js

Source:server.js

1const express    = require('express');2const bodyParser = require('body-parser');3const timeout    = require('connect-timeout');4const fibonacci  = require('./lib/fibonacci.js');5const memoryleak = require('./lib/memoryleak.js');6const pgp        = require('./lib/pgp.js');7const isNumber   = require('is-number');8const app = express();9// Fibonacci random fails10const RANDOM_MIN = 1;11const RANDOM_MAX = 156; //78 iterations until Number.MAX_SAFE_INTEGER12const HTTP_TIMEOUT = 2000; //ms13const MEM_MAX = 2e8; //~100mb, default14app15.use(bodyParser.json())16/**17 * @api {get} / Log "Hello World"18 * @apiGroup Api19 * @apiName HelloWorld20 * @apiSuccess {String} data Hello World21 */22.get('/', function(req, res, next) {23  console.log('Hello World');24  return res.status(200).json({data: 'Hello World'});25})26/**27 * @api {get} /fibonacci Fibonacci28 * @apiGroup Api29 * @apiName Fibonacci30 * @apiParam {Number} iterations Number of iterations31 * @apiParam {Boolean} [force=true] Don't quit if number > Number.MAX_SAFE_INTEGER32 * @apiSuccess {Object} data33 * @apiSuccess {Number} data.iterations Iterations done34 * @apiSuccess {Number} data.number Resulting number35 * @apiError (Error 500) error Number exceed the limit (9007199254740991)36 * @apiErrorExample Error-Response:37 *     HTTP/1.1 500 Internal Error38 *     {39 *       "error": "Number exceed the limit (9007199254740991)",40 *       "data": {41 *         "iterations": 78,42 *         "number": 1447233402467622043 *       }44 *     }45 * }46 */47.get('/fibonacci', function(req, res, next) {48  var rand = parseInt(req.query.iterations);49  if(!isNumber(rand)) {50    rand = Math.floor(Math.random() * (RANDOM_MAX - RANDOM_MIN + 1)) + RANDOM_MIN;51  }52  var f = fibonacci(rand, req.query.force || false);53  var response = {data: {}};54  if(f.error !== undefined) {55    response.error = f.error;56    res.status(500);57  } else {58    res.status(200);59  }60  response.data.iterations = f.iterations;61  response.data.number = f.number;62  return res.json(response);63})64/**65 * @api {get} /timeout Timeout66 * @apiGroup Api67 * @apiName Timeout68 * @apiParam {Number} timeout Timeout in ms69 * @apiSuccess {Object} data70 * @apiSuccess {boolean} data.timeout71 * @apiError (Error 408) error Response timeout72 */73.get('/timeout', timeout(HTTP_TIMEOUT), function(req, res, next) {74  return setTimeout(function() {75    if (req.timedout) { return false; }76    return res.status(200).json({data: {timeout: false}});77  }, req.query.timeout || HTTP_TIMEOUT);78})79/**80 * @api {get} /memoryleak Memory Leak81 * @apiGroup Api82 * @apiName MemoryLeak83 * @apiParam {Number} [interval=400] Stress interval in ms84 * @apiError (Error 500) error Memory size exceded85 */86.get('/memoryleak', function(req, res, next) {87  if (process.env.NODE_ENV === 'production') {88    return next(new Error('Route not available'))89  }90  memoryleak({interval: req.query.interval || 400, max_size: MEM_MAX}, () => next(new Error('Memory size exceded')));91})92/**93 * @api {get} /pgp PGP94 * @apiGroup Api95 * @apiName PGP96 * @apiParam {Number} [number=1] Number of key pairs to generate97 */98.get('/pgp', function(req, res, next) {99  pgp(req.query.number || 1)100  .then(keys => res.json(keys));101})102.use(function(err, req, res, next) {103  if(err) {104    console.error(err.stack);105    if(req.timedout) {106      res.status(408);107    } else {108      res.status(500);109    }110    return res.send({error: err.message});111  }112  return next()113})114.use(function(req, res, next) {115  return res.status(404).send({error: 'Not found'});116});117app.listen(3200, function() {118  console.log('Listening on 3200');...

resourceConsumer.js

Source:resourceConsumer.js

1class ResourcesConsumer {2  responseTime;3  failureRate;4  memoryLeak;5  data = [];6  requestCounter = 0;7  failureRateHelper = [];8  constructor(responseTime = 140, failureRate = 0, memoryLeak = false) {9    this.responseTime = responseTime;10    this.failureRate = failureRate;11    this.memoryLeak = memoryLeak;12    this.failureRateHelper = Array.from(13      { length: 100 },14      function (_, i) {15        if (this.fails === 0) {16          return false;17        }18        if (100 - i <= this.fails) {19          this.fails--;20          return true;21        }22        if (Math.random() < this.failureRate / 100) {23          this.fails--;24          return true;25        }26        return false;27      },28      { fails: this.failureRate },29    );30  }31  blockCPU(time = this.responseTime) {32    const now = new Date().getTime();33    const v = Math.random() * 40;34    const calculations = this.memoryLeak ? this.data : [];35    for (;;) {36      calculations.push(Math.random() * Math.random());37      if (new Date().getTime() > now + time + v) {38        return;39      }40    }41  }42  consume(computingTime = this.responseTime, errorOverhead = 0) {43    this.blockCPU(computingTime + errorOverhead);44    const throwError = this.failureRateHelper[this.requestCounter];45    this.requestCounter++;46    if (this.requestCounter === 100) {47      this.requestCounter = 0;48    }49    if (throwError) {50      throw new Error();51    }52  }53}54exports.consumeResources = (responseTime, failureRate, memoryLeak) => {55  return new ResourcesConsumer(responseTime, failureRate, memoryLeak);...

router.js

Source:router.js

1import _function from "./function.md"2import closure from "./closure.md"3import memoryLeak from "./memoryLeak.md"4import jsThis from "./this.md"5import executionStack from "./executionStack.md"6import prototype from "./prototype.md"7import _event from "./event.md"8import objectCreate from "./objectCreate";9import eventLoop from "./eventLoop";10import test from "./test.vue";11const routerPrefix = "js/";12const jsRouter = [13{path: `${routerPrefix}function`,component: _function,name:"å½æ°åºæ¬,éå½,èªæ§è¡"},14{path: `${routerPrefix}this`,component: jsThis,name:"å½æ°åé¨å¯¹è±¡this"},15{path: `${routerPrefix}closure`,component: closure,name:"ä»ä¹æ¯éå"},16{path: `${routerPrefix}memoryLeak`,component: memoryLeak,name:"åå¨æ³æ¼æº¢åº"},17{path: `${routerPrefix}executionStack`,component: executionStack,name:"jsæ§è¡æ ä¸ä¸ä¸æ"},18{path: `${routerPrefix}prototype`,component: prototype,name:"ååé¾,new å¹²äºä»ä¹"},19{path: `${routerPrefix}event`,component: _event,name:"eventï¼äºä»¶æµï¼äºä»¶å§æ"},20{path: `${routerPrefix}objectCreate`,component: objectCreate,name:"å¯¹è±¡ï¼å¯¹è±¡çåå»º"},21{path: `${routerPrefix}eventLoop`,component: eventLoop,name:"jsè¿è¡æºå¶(eventLoop)ï¼å¾®ä»»å¡ï¼å®ä»»å¡"},22{path: `${routerPrefix}test`,component: test,name:"js æµè¯é¡µé¢"},23]24export default jsRouter;...

issue-1991.fixture.js

Source:issue-1991.fixture.js

...34    });35    it('access a variable via a closure', function () {36      // slow performance on older node.js versions37      this.timeout(1000);38      closureVar = new MemoryLeak();39    });40  });...

memoryLeak.js

Source:memoryLeak.js

1import { defineCard, Card, PlayArgs } from '../card'2import { defineEffect } from '../../effects/effect'3import { ExhaustCard } from '../../events/exhaustCard'4import { AddToHand } from '../../events/addToHand'5import { DrawCards } from '../../events/drawCards'6import { BindEnergy } from '../../events/bindEnergy'7const Drain = defineEffect(8  'drain',9  {10    name: 'Drain',11    innerColor: '#ee8866',12    outerColor: '#bb3322',13    description: 'On draw, lose 1 energy.',14    sides: 3,15    rotation: 0.5,16  },17  {18    stacked: false,19    delta: (x) => x,20    min: 1,21    max: 1,22  },23  (owner) => ({24    subjects: [owner],25    tags: [DrawCards],26    type: AddToHand,27  }),28  (owner, type) =>29    function*({ resolver, game }) {30      yield resolver.processEvent(31        new BindEnergy(owner, game.player, {32          quantity: -1,33        })34      )35    },36  [AddToHand]37)38export const MemoryLeak = defineCard(39  'memoryLeak',40  function*(self: Card<>, { energy }: PlayArgs) {41    return { energy }42  },43  {44    energy: undefined,45  },46  {47    color: '111122',48    text: '#[Unplayable]. On draw, lose 1 energy.',49    title: 'Memory Leak',50  },51  [Drain, 1]...

memory-leak.spec.js

Source:memory-leak.spec.js

...4  let source, memoryLeak;5  let doneCalled = false6  beforeEach(() => {7    source = new Subject();8    memoryLeak = new MemoryLeak(source.asObservable());9  });10  it('should always unsubscribe', done => {11    source.subscribe(() => {12      expect(memoryLeak.id).toEqual(54);13      myDone(done);14    });15    source.next(54);16    memoryLeak.unsubscribe();17    source.next(65);18  });19  function myDone(fn) {20    if (!doneCalled) {21      fn()22      console.log('DONE')...

status.js

Source:status.js

1import { Character, F, D, C, B, A } from '../../character'2import { CardLibrary } from '../cardLibrary'3import { HardwareFailure } from './hardwareFailure'4import { Deadlock } from './deadlock'5import { Interrupt } from './interupt'6import { MemoryLeak } from './memoryLeak'7const status = new Character('Status', false, '#494955', '')8status.addCard(D, HardwareFailure)9status.addCard(D, Deadlock)10status.addCard(D, Interrupt)11status.addCard(D, MemoryLeak)...

leaky.js

Source:leaky.js

1require("v8-profiler");2var leakObject   = null;3function MemoryLeak() {4	var originalObject = leakObject;5	leakObject = {6		longString : new Array(1000000).join("*"),7		someMethod : function () {8			console.log(originalObject);9		}10	};11};...

Using AI Code Generation

1var assert = require('assert');2var MemoryLeak = require('mocha-memory-leak')();3describe('Memory Leak Test', function() {4  it('should not leak', function() {5    var obj = {};6    MemoryLeak.watch(obj);7  });8});9{10  "dependencies": {11  },12  "devDependencies": {13  },14  "scripts": {15  },16}

Using AI Code Generation

1var MemoryLeak = require('mocha-memory-leak')();2var assert = require('assert');3describe('Memory Leak', function() {4  it('should not leak', function() {5    var leak = new MemoryLeak();6    var a = [];7    for (var i = 0; i < 100000; i++) {8      a.push(i);9    }10    assert.ok(leak.check());11  });12});13"dependencies": {14  }15var MemoryLeak = require('mocha-memory-leak')();16var assert = require('assert');17describe('Memory Leak', function() {18  it('should not leak', function() {19    var leak = new MemoryLeak();20    assert.ok(leak.check());21  });22});

Using AI Code Generation

1global.gc();2const heapUsed = process.memoryUsage().heapUsed;3console.log(`The script uses approximately ${heapUsed} bytes of memory`);4const assert = require('assert');5const heapUsed = process.memoryUsage().heapUsed;6assert.equal(heapUsed, 0);7const assert = require('assert');8const heapUsed = process.memoryUsage().heapUsed;9assert.equal(heapUsed, 0);10const assert = require('assert');11const heapUsed = process.memoryUsage().heapUsed;12assert.equal(heapUsed, 0);13const assert = require('assert');14const heapUsed = process.memoryUsage().heapUsed;15assert.equal(heapUsed, 0);16const assert = require('assert');17const heapUsed = process.memoryUsage().heapUsed;18assert.equal(heapUsed, 0);19const assert = require('assert');20const heapUsed = process.memoryUsage().heapUsed;21assert.equal(heapUsed, 0);22const assert = require('assert');23const heapUsed = process.memoryUsage().heapUsed;24assert.equal(heapUsed, 0);25const assert = require('assert');26const heapUsed = process.memoryUsage().heapUsed;27assert.equal(heapUsed, 0);28const assert = require('assert');29const heapUsed = process.memoryUsage().heapUsed;30assert.equal(heapUsed, 0);31const assert = require('assert');32const heapUsed = process.memoryUsage().heapUsed;33assert.equal(heapUsed, 0);34const assert = require('assert');

Using AI Code Generation

1var leak = require('leak');2var memwatch = require('memwatch');3var heapdump = require('heapdump');4var memwatch = require('memwatch');5var gc = require('gc-stats')();6var heapdump = require('heapdump');7var leaky = leak({max: 10, timeout: 1000}, function (err, leak) {8    if (leak) {9        console.log('memory leak detected');10        heapdump.writeSnapshot();11    }12    else {13        console.log('no memory leak detected');14    }15});16gc.on('stats', function(stats) {17    console.log('GC: ', stats);18});19var i = 0;20var leak = setInterval(function () {21    i++;22}, 1000);23"devDependencies": {24}25Chrome > Help > About Google Chrome > Memory (Process) > Snapshot26clearInterval(leak);

Using AI Code Generation

1var assert = require('assert');2var leak = require('leak');3var leak = new leak();4var array = [];5leak.detect(function() {6  array.push('foo');7});8assert.equal(array.length, 1);9{10  "scripts": {11  },12  "dependencies": {13  }14}

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