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How to use concurrencyLimiter method in wpt

Best JavaScript code snippet using wpt

concurrency-limiter.js

Source:concurrency-limiter.js

1/*2 * Copyright (c) 2015 Adobe Systems Incorporated. All rights reserved.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER20 * DEALINGS IN THE SOFTWARE.21 *22 */23(function () {24    "use strict";25    var os = require("os"),26        Q = require("q");27    function ConcurrencyLimiter(maxJobs) {28        this._maxJobs = maxJobs || os.cpus().length;29        this._jobs = [];30        this._numRunningJobs = 0;31     }32    ConcurrencyLimiter.prototype.enqueue = function(promiseFactory) {33        var deferred = Q.defer();34        this._jobs.push({35            deferred: deferred,36            promiseFactory: promiseFactory37         });38        this._runNextJob();39        return deferred.promise;40    };41    ConcurrencyLimiter.prototype._runNextJob = function() {42        // Do nothing if there's no more queued jobs or if we're running at max concurrency.43        if (this._jobs.length <= 0 || this._numRunningJobs >= this._maxJobs)44            return;45        // Dequeue the job and run it.46        var job = this._jobs.shift();47        var promise = job.promiseFactory();48        this._numRunningJobs++;49        promise50            .finally(function() {51                this._numRunningJobs--;52                // Resolve or reject the job's deferred.53                var status = promise.inspect();54                if (status.state == "fulfilled")55                    job.deferred.resolve(status.value);56                else57                    job.deferred.reject(status.reason);58                this._runNextJob();59            }.bind(this));60        this._runNextJob();61    };62    module.exports = ConcurrencyLimiter;...

concurrencyLimiter.test.js

Source:concurrencyLimiter.test.js

...7    const asyncFn = () => new Promise((resolve) => {8      inProgress++9      setTimeout(resolve, 0)10    })11    const limitedFn = concurrencyLimiter(asyncFn, 2)12    Promise.all([13      limitedFn(),14      limitedFn(),15      limitedFn(),16      limitedFn()17    ])18    expect(inProgress).toBe(2)19  }20)21test(22  'should resolve with value of promise resolved by each invokation',23  async () => {24    const asyncFn = (value) => new Promise((resolve) => {25      setTimeout(() => { resolve(value * 2) }, 0)26    })27    const limitedFn = concurrencyLimiter(asyncFn, 2)28    await expect(limitedFn(2)).resolves.toBe(4)29    await expect(limitedFn(3)).resolves.toBe(6)30    await expect(limitedFn(4)).resolves.toBe(8)31    await expect(limitedFn(5)).resolves.toBe(10)32  }33)34test(35  'should continue to resolve following rejected promises',36  async () => {37    let count = 038    const asyncFn = (shouldThrow = false) => new Promise((resolve, reject) => {39      setTimeout(() => {40        if (shouldThrow) {41          reject(new Error('doh!'))42        } else {43          count++44          resolve()45        }46      }, 0)47    })48    const _catch = jest.fn()49    const limitedFn = concurrencyLimiter(asyncFn, 2)50    await Promise.all([51      limitedFn(),52      limitedFn(true).catch(_catch),53      limitedFn(),54      limitedFn()55    ])56    expect(count).toBe(3)57    expect(_catch).toBeCalledTimes(1)58  }59)60test(61  'should pass all arguments to wrapped function',62  async () => {63    const asyncFn = (a, b, c) => new Promise((resolve) => {64      setTimeout(() => { resolve(a + b * c) }, 0)65    })66    const limitedFn = concurrencyLimiter(asyncFn, 2)67    await expect(limitedFn(2, 2, 3)).resolves.toBe(8)68    await expect(limitedFn(4, 2, 4)).resolves.toBe(12)69    await expect(limitedFn(7, 2, 3)).resolves.toBe(13)70    await expect(limitedFn(6, 4, 2)).resolves.toBe(14)71  }72)73test(74  'should work with synchronous functions',75  async () => {76    const syncFn = (a, b, c) => a + b * c77    const limitedFn = concurrencyLimiter(syncFn, 2)78    await expect(limitedFn(2, 2, 3)).resolves.toBe(8)79    await expect(limitedFn(4, 2, 4)).resolves.toBe(12)80    await expect(limitedFn(7, 2, 3)).resolves.toBe(13)81    await expect(limitedFn(6, 4, 2)).resolves.toBe(14)82  }...

execCertbot.js

Source:execCertbot.js

1const childProcess = require('child_process')2const util = require('util')3const concurrencyLimiter = require('../../../lib/helpers/concurrencyLimiter')4const execFile = util.promisify(childProcess.execFile)...

Using AI Code Generation

1var wptools = require('wptools');2var _ = require('lodash');3];4var limit = 5;5var start = 0;6var end = limit;7var results = [];8var getPages = function() {9  if (start < pages.length) {10    var subPages = pages.slice(start, end);11    start = end;12    end = end + limit;13    var promises = [];14    _.forEach(subPages, function(page) {15      promises.push(wptools.page(page).get());16    });17    Promise.all(promises).then(function(data) {18      results = results.concat(data);19      console.log(data);20      getPages();21    });22  }23};24getPages();

Using AI Code Generation

1var wpt = require('webpagetest');2var client = wpt('www.webpagetest.org');3var options = {4};5function testWpt(options) {6    client.runTest(options.url, options, function(err, data) {7        if (err) return console.log(err);8        console.log(data);9    });10}11testWpt(options);

Using AI Code Generation

1const wpt = require('wpt-api');2const concurrencyLimiter = require('wpt-api/concurrencyLimiter');3const api = wpt(process.env.WPT_API_KEY, concurrencyLimiter(5));4const wpt = require('wpt-api');5const concurrencyLimiter = require('wpt-api/concurrencyLimiter');6const api = wpt(process.env.WPT_API_KEY, concurrencyLimiter(5));

Using AI Code Generation

1var WPT = require('wpt-api');2var wpt = new WPT(process.env.WPT_API_KEY);3var concurrencyLimiter = require('./concurrencyLimiter');4var concurrencyLimiterObject = new concurrencyLimiter(3);5for (var i = 0; i < 10; i++) {6  concurrencyLimiterObject.call(wpt.runTest, testURL)7  .then(function(result){8    console.log(result);9  })10  .catch(function(error){11    console.log(error);12  });13}14concurrencyLimiterObject.done()15.then(function(){16  console.log("done");17})18.catch(function(error){19  console.log(error);20});

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