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How to use puppeteer.launch method in sinon

Best JavaScript code snippet using sinon

browser.test.js

Source:browser.test.js

1/**2 * This file is part of the chromium-screenshot package3 *4 * For the full copyright and license information, please view the LICENSE5 * file that was distributed with this source code.6 */7// const assert = require("assert");8const {9    describe10} = require("mocha");11// const sinon = require("sinon");12// const puppeteer = require("puppeteer");13// const EventEmitter = require("events");14// const Browser = require("../src/browser");15describe(16    "Browser",17    () =>18    {19        // const sandBox = sinon.createSandbox();20        /*21        describe(22            "#fetch()",23            () =>24            {25                // stub logger method before each test26                beforeEach(() => sandBox.stub(puppeteer, "launch"));27                // restore logger state after each test28                afterEach(() => sandBox.restore());29                it(30                    "should return the browser instance",31                    async () =>32                    {33                        const browser = new Browser(["--no-sandbox"]);34                        const instance = new EventEmitter();35                        puppeteer.launch.returns(Promise.resolve(instance));36                        assert.equal(await browser.fetch(), instance);37                    }38                );39                it(40                    "should cache the browser instance",41                    async () =>42                    {43                        const browser = new Browser(["--no-sandbox"]);44                        const firstInstance = new EventEmitter();45                        const secondInstance = new EventEmitter();46                        puppeteer.launch.onCall(0).returns(Promise.resolve(firstInstance));47                        puppeteer.launch.onCall(1).returns(Promise.resolve(secondInstance));48                        await browser.fetch();49                        const secondResult = await browser.fetch();50                        sandBox.assert.calledOnce(puppeteer.launch);51                        assert.equal(secondResult, firstInstance);52                    }53                );54                it(55                    "should cache the browser promise",56                    async () =>57                    {58                        const browser = new Browser(["--no-sandbox"]);59                        // this promise never resolves60                        puppeteer.launch.returns(new Promise(() => true));61                        const firstPromise = browser.fetch();62                        const secondPromise = browser.fetch();63                        assert.equal(firstPromise, secondPromise);64                    }65                );66                it(67                    "should clear the instance when the browser disconnects",68                    async () =>69                    {70                        const browser = new Browser(["--no-sandbox"]);71                        const instance = new EventEmitter();72                        // mock73                        puppeteer.launch.returns(Promise.resolve(instance));74                        sandBox.stub(browser, "clear");75                        // fetch instance and trigger disconnect76                        await browser.fetch();77                        // this calls listeners synchronously78                        instance.emit("disconnected");79                        sandBox.assert.calledOnce(browser.clear);80                    }81                );82                it(83                    "should clear the instance when the browser disconnects",84                    async () =>85                    {86                        const browser = new Browser(["--no-sandbox"]);87                        const instance = new EventEmitter();88                        // mock89                        puppeteer.launch.returns(Promise.resolve(instance));90                        sandBox.stub(browser, "clear");91                        // fetch instance and trigger disconnect92                        await browser.fetch();93                        // this calls listeners synchronously94                        instance.emit("disconnected");95                        sandBox.assert.calledOnce(browser.clear);96                    }97                );98            }99        );100        describe(101            "#clear()",102            () =>103            {104                // stub logger method before each test105                beforeEach(() => sandBox.stub(puppeteer, "launch"));106                // restore logger state after each test107                afterEach(() => sandBox.restore());108                it(109                    "should clear the browser instance",110                    async () =>111                    {112                        const browser = new Browser(["--no-sandbox"]);113                        // mock114                        const firstInstance = new EventEmitter();115                        const secondInstance = new EventEmitter();116                        firstInstance.close = () => true;117                        secondInstance.close = () => true;118                        puppeteer.launch.onCall(0).returns(Promise.resolve(firstInstance));119                        puppeteer.launch.onCall(1).returns(Promise.resolve(secondInstance));120                        // fetch, clear then fetch again121                        await browser.fetch();122                        browser.clear();123                        const secondResult = await browser.fetch();124                        sandBox.assert.calledTwice(puppeteer.launch);125                        assert.equal(secondResult, secondInstance);126                    }127                );128                it(129                    "should not repeat calls to close the browser",130                    async () =>131                    {132                        const browser = new Browser(["--no-sandbox"]);133                        // mock134                        const instance = new EventEmitter();135                        instance.close = () => true;136                        const closeSpy = sinon.spy(instance, "close");137                        puppeteer.launch.returns(Promise.resolve(instance));138                        // fetch, clear then fetch again139                        await browser.fetch();140                        browser.clear();141                        browser.clear();142                        sandBox.assert.calledOnce(closeSpy);143                    }144                );145            }146        );147        */148    }...

index-puppeteer.js

Source:index-puppeteer.js

1const puppeteer = require("puppeteer");2(async () => {3  // const browser = await puppeteer.launch({4  //   headless: false,5  //   devtools: true,6  // });7  // const page = await browser.newPage();8  // await page.goto("https://google.com");9  // await page.type("[title~=Search]", "World", { delay: 100 });10  // await page.keyboard.press("Enter");11  // await page.waitForNavigation();12  // await page.screenshot({ path: "example.png" });13  // await browser.close();14  // /* 1. Creating a PDF from the website */15  // const browser = await puppeteer.launch({ headless: true });16  // const page = await browser.newPage();17  // await page.goto("https://google.com/");18  // await page.pdf({19  //   path: "./page.pdf",20  //   format: "A4",21  // });22  // await browser.close();23  // /* 2. Getting the URL or the Title of the current page */24  // const browser = await puppeteer.launch({ headless: false });25  // const page = await browser.newPage();26  // await page.goto("https://learnscraping.com/");27  // let title = await page.title();28  // console.log(`Title of the page is ${title}`);29  // let url = await page.url();30  // console.log(`URL of the page is ${url}`);31  // await browser.close();32  // // /* 3. Emulate a phone */33  // try {34  //   const browser = await puppeteer.launch({ headless: false });35  //   const page = await browser.newPage();36  //   await page.emulate(puppeteer.devices["iPhone X"]);37  //   await page.goto("https://learnscraping.com/");38  //   // await browser.close();39  // } catch (err) {40  //   console.log(err);41  // }42  //instagram login43  // const browser = await puppeteer.launch({44  //   headless: false,45  // });46  // const page = await browser.newPage();47  // await page.goto("https://instagram.com");48  // await page.waitForTimeout(1000);49  // await page.waitForSelector('input[name="username"]');50  // await page.type('input[name="username"]', "Hayo_man");51  // await page.type('input[name="password"]', "12345");52  // await page.click("#loginForm > div > div:nth-child(3) > button");53  //website loads faster54  // const browser = await puppeteer.launch({55  //   headless: false,56  // });57  // const page = await browser.newPage();58  // await page.setRequestInterception(true);59  // page.on("request", (request) => {60  //   if (["image", "stylesheet", "font"].includes(request.resourceType())) {61  //     request.abort();62  //   } else {63  //     request.continue();64  //   }65  // });66  // await page.goto("https://amazon.com/");67  // debugger;68  // // await browser.close()69  //basic auth70  // const browser = await puppeteer.launch({71  //   headless: false,72  // });73  // const page = await browser.newPage();74  // await page.authenticate({75  //   username: "admin",76  //   password: "1234",77  // });78  // await page.goto("https://httpbin.org/basic-auth/admin/1234");79  // debugger;80  //IGNORE HTTP ERRORS AND CHANGE VIEW PORT OF BROSWER81  // const browser = await puppeteer.launch({82  //   headless: false,83  //   ignoreHTTPSErrors: true,84  //   defaultViewport: {85  //     width: 920,86  //     height: 1080,87  //   },88  // });89  // const page = await browser.newPage();90  // await page.goto("https://google.com/");91  // debugger;92  //USING PROXY93  const browser = await puppeteer.launch({94    headless: false,95    args: ["--proxy-server=60.246.7.4:8080"],96  });97  const page = await browser.newPage();98  await page.goto("https://httpbin.org/ip");99  debugger;...

print.js

Source:print.js

...20  const pdfFilename = typeof print === 'string' ? print : filename.replace(/\.md$/, '.pdf');21  debug({ initialUrl, printPluginPath, pdfFilename, puppeteerLaunchConfig });22  console.log(`Attempting to print "${filename}" to "${pdfFilename}".`);23  try {24    const browser = await puppeteer.launch(puppeteerLaunchConfig);25    const page = await browser.newPage();26    const pdfOptions = { path: pdfFilename, printBackground: true };27    Object.assign(pdfOptions, getPageOptions(printSize));28    await page.goto(`${initialUrl}?print-pdf`, { waitUntil: 'load' });29    await page.pdf(pdfOptions);30    await browser.close();31  } catch (err) {32    console.error(`Error while generating PDF for "${filename}"`);33    debug(err);34  }...

index.js

Source:index.js

...14 */15function createFactory({ puppeteerLaunchArgs, validate }) {16  const factory = {};17  factory.create = function createFn() {18    return puppeteer.launch(...puppeteerLaunchArgs);19  };20  factory.destroy = function destroyFn(browserInstance) {21    return browserInstance.close();22  };23  if (validate && typeof validate === 'function') {24    factory.validate = validate;25  }26  return factory;27}28/**29 *30 * @returns {*}31 * @param poolConfig32 */...

Using AI Code Generation

1const puppeteer = require('puppeteer');2const sinon = require('sinon');3const sinonStubPromise = require('sinon-stub-promise');4sinonStubPromise(sinon);5const expect = require('chai').expect;6const assert = require('chai').assert;7describe('puppeteer', () => {8    let sandbox;9    let browser;10    let page;11    let launchStub;12    beforeEach(() => {13        sandbox = sinon.createSandbox();14        browser = sandbox.stub();15        page = sandbox.stub();16        launchStub = sinon.stub(puppeteer, 'launch');17        launchStub.returnsPromise().resolves(browser);18        browser.newPage = sinon.stub().returnsPromise().resolves(page);19    });20    afterEach(() => {21        sandbox.restore();22        launchStub.restore();23    });24    it('should be able to launch browser', async () => {25        const browser = await puppeteer.launch();26        expect(browser).to.exist;27    });28    it('should be able to launch browser and open a new page', async () => {29        const browser = await puppeteer.launch();30        const page = await browser.newPage();31        expect(page).to.exist;32    });33    it('should be able to launch browser and open a new page', async () => {34        const browser = await puppeteer.launch();35        const page = await browser.newPage();36        expect(page).to.exist;37    });38    it('should be able to launch browser and open a new page', async () => {39        const browser = await puppeteer.launch();40        const page = await browser.newPage();41        expect(page).to.exist;42    });43    it('should be able to launch browser and open a new page', async () => {44        const browser = await puppeteer.launch();45        const page = await browser.newPage();46        expect(page).to.exist;47    });48});49const puppeteer = require('puppeteer');50const sinon = require('sinon');51const sinonStubPromise = require('sinon-stub-promise');52sinonStubPromise(sinon);53const expect = require('chai').expect;54const assert = require('chai').assert;55describe('puppeteer', () => {56    let sandbox;57    let browser;58    let page;59    let launchStub;60    beforeEach(() => {61        sandbox = sinon.createSandbox();

Using AI Code Generation

1const puppeteer = require('puppeteer');2const sinon = require('sinon');3const assert = require('assert');4const sandbox = sinon.createSandbox();5const stub = sandbox.stub(puppeteer, 'launch');6stub.returns({7    newPage: async () => {8        return {9            goto: async () => {10                return {11                    content: async () => {12                        return 'Hello World';13                    }14                }15            }16        }17    }18});19const test = async () => {20    const browser = await puppeteer.launch();21    const page = await browser.newPage();22    const content = await response.content();23    assert.equal(content, 'Hello World');24    await browser.close();25}26test();

Using AI Code Generation

1const sinon = require('sinon');2const puppeteer = require('puppeteer');3const puppeteerStub = sinon.stub(puppeteer, 'launch');4const assert = require('assert');5puppeteerStub.returns({6    newPage: async () => {7        return {8            goto: async () => {9                return {10                };11            },12            close: async () => {13                return true;14            }15        };16    }17});18const test = require('./index');19describe('Testing puppeteer', () => {20    it('should return true', async () => {21        const result = await test();22        assert.equal(result, true);23    });24});25const puppeteer = require('puppeteer');26module.exports = async () => {27    const browser = await puppeteer.launch();28    const page = await browser.newPage();29    await browser.close();30    return response.ok;31};32{33  "scripts": {34  },35  "devDependencies": {36  },37  "dependencies": {38  }39}

Using AI Code Generation

1const puppeteer = require('puppeteer');2const sinon = require('sinon');3const sinonStubPromise = require('sinon-stub-promise');4sinonStubPromise(sinon);5sinon.stub(puppeteer, 'launch').returnsPromise().resolves({newPage: () => {}});6(async () => {7  const browser = await puppeteer.launch();8  const page = await browser.newPage();9  await page.screenshot({path: 'example.png'});10  await browser.close();11})();12const puppeteer = require('puppeteer');13const sinon = require('sinon');14const sinonStubPromise = require('sinon-stub-promise');15sinonStubPromise(sinon);16sinon.stub(puppeteer, 'launch').returnsPromise().resolves({newPage: () => {}});17(async () => {18  const browser = await puppeteer.launch();19  const page = await browser.newPage();20  await page.screenshot({path: 'example.png'});21  await browser.close();22})();23const puppeteer = require('puppeteer');24const sinon = require('sinon');25const sinonStubPromise = require('sinon-stub-promise');26sinonStubPromise(sinon);27sinon.stub(puppeteer, 'launch').returnsPromise().resolves({newPage: () => {}});28(async () => {29  const browser = await puppeteer.launch();30  const page = await browser.newPage();31  await page.screenshot({path: 'example.png'});32  await browser.close();33})();34const puppeteer = require('puppeteer');35const sinon = require('sinon');36const sinonStubPromise = require('sinon-stub-promise');37sinonStubPromise(sinon);

Using AI Code Generation

1const puppeteer = require('puppeteer');2const sinon = require('sinon');3const assert = require('assert');4const { expect } = require('chai');5const { describe } = require('mocha');6describe('test', function () {7  let sandbox;8  let browser;9  let page;10  let browserStub;11  let pageStub;12  beforeEach(async function () {13    sandbox = sinon.createSandbox();14    browser = await puppeteer.launch();15    page = await browser.newPage();16    browserStub = sandbox.stub(puppeteer, 'launch').returns(browser);17    pageStub = sandbox.stub(browser, 'newPage').returns(page);18  });19  afterEach(function () {20    sandbox.restore();21  });22  it('test', async function () {23    console.log(result);24    expect(result).to.be.true;25  });26});

Using AI Code Generation

1const puppeteer = require('puppeteer');2const sinon = require('sinon');3const assert = require('assert');4const page = require('./page');5describe('test', () => {6  let sandbox;7  let browser;8  let page;9  let launchStub;10  beforeEach(async () => {11    sandbox = sinon.createSandbox();12    browser = await puppeteer.launch();13    page = await browser.newPage();14    launchStub = sandbox.stub(puppeteer, 'launch').resolves(browser);15  });16  afterEach(() => {17    sandbox.restore();18  });19  it('should call page', async () => {20    await page();21    assert.ok(launchStub.calledOnce);22  });23});24const puppeteer = require('puppeteer');25async function page() {26  const browser = await puppeteer.launch();27  const page = await browser.newPage();28  await page.screenshot({ path: 'google.png' });29  await browser.close();30}31module.exports = page;32You can use the page.goto() method to navigate to a URL:33const puppeteer = require('puppeteer');34(async () => {35  const browser = await puppeteer.launch();36  const page = await browser.newPage();37  await browser.close();38})();39You can also use the page.goto() method to navigate to a file:40const puppeteer = require('puppeteer');41(async () => {42  const browser = await puppeteer.launch();43  const page = await browser.newPage();44  await browser.close();45})();46const puppeteer = require('puppeteer');47const fs = require('fs');48(async () => {49  const browser = await puppeteer.launch();50  const page = await browser.newPage();

Using AI Code Generation

1const sinon = require('sinon');2const puppeteer = require('puppeteer');3const { assert } = require('chai');4describe('puppeteer launch method', () => {5  it('should launch browser', async () => {6    const browser = await puppeteer.launch({7    });8    await browser.close();9  });10});11const sinon = require('sinon');12const puppeteer = require('puppeteer');13const { assert } = require('chai');14describe('puppeteer launch method', () => {15  it('should launch browser', async () => {16    sinon.stub(puppeteer, 'launch').resolves('Browser launched');17    const browser = await puppeteer.launch({18    });19    assert.equal(browser, 'Browser launched');20    await browser.close();21  });22});23const sinon = require('sinon');24const puppeteer = require('puppeteer');25const { assert } = require('chai');26describe('puppeteer launch method', () => {27  it('should launch browser', async () => {28    const mock = sinon.mock(puppeteer);29    mock.expects('launch').resolves('Browser launched');30    const browser = await puppeteer.launch({31    });32    assert.equal(browser, 'Browser launched');33    await browser.close();34  });35});36const sinon = require('sinon');37const puppeteer = require('puppeteer');38const { assert } = require('chai');39describe('puppeteer launch method', () => {40  it('should launch browser', async () => {41    const mock = sinon.mock(puppeteer);42    mock.expects('launch').resolves('Browser launched');43    const browser = await puppeteer.launch({

Using AI Code Generation

1const sinon = require('sinon');2const chrome = require('sinon-chrome');3describe('chrome', () => {4    afterEach(() => {5        chrome.flush();6    });7    it('should launch', async () => {8        chrome.runtime.onMessage.addListener.yields('launch');

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