Best JavaScript code snippet using testcafe
TestRunner.js
Source:TestRunner.js  
...277                } else if(ex instanceof TestWait) {278                    return;279                }280                handledError = true;281                handleTestRunError(test, ex);282                stack = ex.stack || "";283            }284            if(test.shouldThrow && !handledError) {285                errorName = test.expectedErrorName || "Some error";286                error = new TestError({287                            name:"TestFailure", 288                            message: errorName + " expected but not thrown",289                            stack : stack290                        });291                addErrorToTree(test, error);292            }293            test.oncomplete();294        }295    }296    297    function addErrorToTree(testable, error) {298        for( ; testable; testable = testable.parent) {299            testable.errorList.push(error);300        }301    }302    303    function handleTestRunError(test, ex) {304        if(test.shouldThrow) {305            if(test.expectedErrorName && test.expectedErrorName !== ex.name) {306                addErrorToTree(test, ex);307            }308        } else {309            addErrorToTree(test, ex);310        }311    }312        313    function TestError(error) {314        this.name = error.name;315        this.message = error.message;316        this.stack = error.stack || "(not available)";317    }...handle-errors.js
Source:handle-errors.js  
...15    });16}17function handleError (ErrorCtor, message) {18    if (handlingTestErrors)19        handleTestRunError(ErrorCtor, message);20    else21        printErrorMessagesAndTerminate(message);22}23function formatUnhandledRejectionReason (reason) {24    const reasonType      = typeof reason;25    const isPrimitiveType = reasonType !== 'object' && reasonType !== 'function';26    if (isPrimitiveType)27        return String(reason);28    if (reason instanceof Error)29        return reason.stack;30    return util.inspect(reason, { depth: 2, breakLength: Infinity });31}32function formatError (ErrorCtor, error) {33    if (ErrorCtor === UncaughtExceptionError)...Using AI Code Generation
1import { Selector } from 'testcafe';2test('My first test', async t => {3        .typeText('#developer-name', 'John Smith')4        .click('#submit-button')5        .wait(5000);6    const articleHeader = await Selector('.result-content').find('h1');7    let headerText = await articleHeader.innerText;8    console.log(headerText);9    let headerHtml = await articleHeader.innerHTML;10    let headerClass = await articleHeader.classNames;11    let headerLink = await articleHeader.child('a').getAttribute('href');12});Using AI Code Generation
1import { Selector } from 'testcafe';2test('My first test', async t => {3        .typeText('#developer-name', 'John Smith')4        .click('#submit-button');5});6    ('My second test', async t => {7            .click('#populate')8            .click('#submit-button');9    })10    .after(async t => {11        await t.takeScreenshot();12    });13    ('My third test', async t => {14            .click('#populate')15            .click('#submit-button');16    })17    .after(async t => {18        await t.takeScreenshot();19    });20    ('My fourth test', async t => {21            .click('#populate')22            .click('#submit-button');23    })24    .after(async t => {25        await t.takeScreenshot();26    });27    ('My fifth test', async t => {28            .click('#populate')29            .click('#submit-button');30    })31    .after(async t => {32        await t.takeScreenshot();33    });34    ('My sixth test', async t => {35            .click('#populate')36            .click('#submit-button');37    })38    .after(async t => {39        await t.takeScreenshot();40    });41    ('My seventh test', async t => {42            .click('#populate')Using AI Code Generation
1import { Selector } from 'testcafe';2test('My first test', async t => {3        .typeText('#developer-name', 'John Smith')4        .click('#submit-button');5    const articleHeader = await Selector('.result-content').find('h1');6    let headerText = await articleHeader.innerText;7    let id = await articleHeader.id;8    let classAttr = await articleHeader.classNames;9    let styleAttr = await articleHeader.styleProperty('font-family');10    let headerClass = await articleHeader.hasClass('result-content');11    let headerVisible = await articleHeader.visible;12});13test('My second test', async t => {14        .typeText('#developer-name', 'John Smith')15        .click('#submit-button');16    const articleHeader = await Selector('.result-content').find('h1');17    let headerText = await articleHeader.innerText;18    let id = await articleHeader.id;19    let classAttr = await articleHeader.classNames;20    let styleAttr = await articleHeader.styleProperty('font-family');21    let headerClass = await articleHeader.hasClass('result-content');22    let headerVisible = await articleHeader.visible;23});24import { Selector } from 'testcafe';25test('My first test', async t => {26        .typeText('#developer-name', 'John Smith')27        .click('#submit-button');28    const articleHeader = await Selector('.result-content').find('h1');Using AI Code Generation
1const createTestCafe = require('testcafe');2const testCafe = await createTestCafe('localhost', 1337, 1338);3const runner = testCafe.createRunner();4    .src('test.js')5    .browsers('chrome')6    .run({Using AI Code Generation
1import { handleTestRunError } from 'testcafe';2import { ClientFunction } from 'testcafe';3import { Selector } from 'testcafe';4test('My test', async t => {5        .click(Selector('button'));6});7import { handleError } from 'testcafe';8import { ClientFunction } from 'testcafe';9import { Selector } from 'testcafe';10test('My test', async t => {11        .click(Selector('button'));12});13import { handleError } from 'testcafe';14import { ClientFunction } from 'testcafe';15import { Selector } from 'testcafe';16test('My test', async t => {17        .click(Selector('button'));18});19import { handleError } from 'testcafe';20import { ClientFunction } from 'testcafe';21import { Selector } from 'testcafe';22test('My test', async t => {23        .click(Selector('button'));24});25import { handleError } from 'testcafe';26import { ClientFunction } from 'testcafe';27import { Selector } from 'testcafe';28test('My test', async t => {29        .click(Selector('button'));30});31import { handleError } from 'testcafe';32import { ClientFunction } from 'testcafe';33import { Selector } from 'testcafe';34test('My test', async t => {35        .click(Selector('button'));36});37import { handleError } from 'testcafe';38import { ClientFunction }Using AI Code Generation
1import { Selector } from 'testcafe';2import { handleTestRunError } from 'testcafe-reporter-s3-stream';3test('Testcafe S3 Reporter', async t => {4    await handleTestRunError(t, async () => {5            .click(Selector('button').withText('Error'))6            .expect(Selector('h1').withText('Error').exists).ok();7    });8});9import { Selector } from 'testcafe';10import { handleTestRunError } from 'testcafe-reporter-s3-stream';11test('Testcafe S3 Reporter', async t => {12    await handleTestRunError(t, async () => {13            .click(Selector('button').withText('Error'))14            .expect(Selector('h1').withText('Error').exists).ok();15    });16});17import { Selector } from 'testcafe';18import { handleTestRunError } from 'testcafe-reporter-s3-stream';19test('Testcafe S3 Reporter', async t => {20    await handleTestRunError(t, async () => {21            .click(Selector('button').withText('Error'))22            .expect(Selector('h1').withText('Error').exists).ok();23    });24});25import { Selector } from 'testcafe';26import { handleTestRunError } from 'testcafe-reporter-s3-stream';27test('Testcafe S3 Reporter', async t => {28    await handleTestRunError(t, async () => {Using AI Code Generation
1testcafe.handleTestRunError = function (err) {2    console.log("Error: " + err);3}4module.exports = testcafe;5const Testcafe = require('./test.js');6var testcafe = new Testcafe();7testcafe.handleTestRunError = function (err) {8    console.log("Error: " + err);9}10module.exports = testcafe;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.
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Get 100 minutes of automation test minutes FREE!!
