Best JavaScript code snippet using testcafe
index.js
Source:index.js  
...3221    // The `beforeInput` event is supported only in Chrome-based browsers and Safari3222    // The order of events differs in Chrome and Safari:3223    // In Chrome: `beforeinput` occurs before `textInput`3224    // In Safari: `beforeinput` occurs after `textInput`3225    function simulateBeforeInput(element, text, needSimulate) {3226        if (needSimulate)3227            return eventSimulator$9.beforeInput(element, text);3228        return true;3229    }3230    // NOTE: Typing can be prevented in Chrome/Edge but can not be prevented in IE11 or Firefox3231    // Firefox does not support TextInput event3232    // Safari supports the TextInput event but has a bug: e.data is added to the node value.3233    // So in Safari we need to call preventDefault in the last textInput handler but not prevent the Input event3234    function simulateTextInput(element, text) {3235        var forceInputInSafari;3236        function onSafariTextInput(e) {3237            e.preventDefault();3238            forceInputInSafari = true;3239        }3240        function onSafariPreventTextInput(e) {3241            if (e.type === 'textInput')3242                forceInputInSafari = false;3243        }3244        if (browserUtils$8.isSafari) {3245            listeners$2.addInternalEventListener(window, ['textInput'], onSafariTextInput);3246            eventSandbox.on(eventSandbox.EVENT_PREVENTED_EVENT, onSafariPreventTextInput);3247        }3248        var isInputEventRequired = browserUtils$8.isFirefox || eventSimulator$9.textInput(element, text) || forceInputInSafari;3249        if (browserUtils$8.isSafari) {3250            listeners$2.removeInternalEventListener(window, ['textInput'], onSafariTextInput);3251            eventSandbox.off(eventSandbox.EVENT_PREVENTED_EVENT, onSafariPreventTextInput);3252        }3253        return isInputEventRequired || browserUtils$8.isIE11;3254    }3255    function _typeTextToContentEditable(element, text) {3256        var currentSelection = _getSelectionInElement(element);3257        var startNode = currentSelection.startPos.node;3258        var endNode = currentSelection.endPos.node;3259        var needProcessInput = true;3260        var needRaiseInputEvent = true;3261        var textInputData = text;3262        text = text.replace(WHITE_SPACES_RE, String.fromCharCode(160));3263        // NOTE: some browsers raise the 'input' event after the element3264        // content is changed, but in others we should do it manually.3265        var onInput = function () {3266            needRaiseInputEvent = false;3267        };3268        // NOTE: IE11 raises the 'textinput' event many times after the element changed.3269        // The 'textinput' should be called only once3270        function onTextInput(event, dispatched, preventEvent) {3271            preventEvent();3272        }3273        // NOTE: IE11 does not raise input event when type to contenteditable3274        var beforeContentChanged = function () {3275            needProcessInput = simulateTextInput(element, textInputData);3276            needRaiseInputEvent = needProcessInput && !browserUtils$8.isIE11;3277            listeners$2.addInternalEventListener(window, ['input'], onInput);3278            listeners$2.addInternalEventListener(window, ['textinput'], onTextInput);3279        };3280        var afterContentChanged = function () {3281            nextTick()3282                .then(function () {3283                if (needRaiseInputEvent)3284                    eventSimulator$9.input(element);3285                listeners$2.removeInternalEventListener(window, ['input'], onInput);3286                listeners$2.removeInternalEventListener(window, ['textinput'], onTextInput);3287            });3288        };3289        if (!startNode || !endNode || !domUtils$7.isContentEditableElement(startNode) ||3290            !domUtils$7.isContentEditableElement(endNode))3291            return;3292        if (!domUtils$7.isTheSameNode(startNode, endNode)) {3293            textSelection$1.deleteSelectionContents(element);3294            // NOTE: after deleting the selection contents we should refresh the stored startNode because3295            // contentEditable element's content could change and we can no longer find parent elements3296            // of the nodes. In MSEdge, 'parentElement' for the deleted element isn't undefined3297            currentSelection = _updateSelectionAfterDeletionContent(element, currentSelection);3298            startNode = currentSelection.startPos.node;3299        }3300        if (!startNode || !domUtils$7.isContentEditableElement(startNode) || !domUtils$7.isRenderedNode(startNode))3301            return;3302        if (!simulateBeforeInput(element, text, browserUtils$8.isChrome))3303            return;3304        beforeContentChanged();3305        if (needProcessInput)3306            needProcessInput = simulateBeforeInput(element, text, browserUtils$8.isSafari);3307        if (needProcessInput) {3308            // NOTE: we can type only to the text nodes; for nodes with the 'element-node' type, we use a special behavior3309            if (domUtils$7.isElementNode(startNode))3310                _typeTextInElementNode(startNode, text);3311            else3312                _typeTextInChildTextNode(element, _excludeInvisibleSymbolsFromSelection(currentSelection), text);3313        }3314        afterContentChanged();3315    }3316    function _typeTextToTextEditable(element, text) {3317        var elementValue = domUtils$7.getElementValue(element);3318        var textLength = text.length;3319        var startSelection = textSelection$1.getSelectionStart(element);3320        var endSelection = textSelection$1.getSelectionEnd(element);3321        var isInputTypeNumber = domUtils$7.isInputElement(element) && element.type === 'number';3322        if (!simulateBeforeInput(element, text, browserUtils$8.isChrome))3323            return;3324        var needProcessInput = simulateTextInput(element, text);3325        if (needProcessInput)3326            needProcessInput = simulateBeforeInput(element, text, browserUtils$8.isSafari);3327        if (!needProcessInput)3328            return;3329        // NOTE: the 'maxlength' attribute doesn't work in all browsers. IE still doesn't support input with the 'number' type3330        var elementMaxLength = !browserUtils$8.isIE && isInputTypeNumber ? null : parseInt(element.maxLength, 10);3331        if (elementMaxLength < 0)3332            elementMaxLength = browserUtils$8.isIE && browserUtils$8.version < 17 ? 0 : null;3333        if (elementMaxLength === null || isNaN(elementMaxLength) || elementMaxLength > elementValue.length) {3334            // NOTE: B2540133335            if (isInputTypeNumber && browserUtils$8.isIOS && elementValue[elementValue.length - 1] === '.') {3336                startSelection += 1;3337                endSelection += 1;3338            }3339            domUtils$7.setElementValue(element, elementValue.substring(0, startSelection) + text +3340                elementValue.substring(endSelection, elementValue.length));...type-text.js
Source:type-text.js  
...167        startNode        = currentSelection.startPos.node;168    }169    if (!startNode || !domUtils.isContentEditableElement(startNode) || !domUtils.isRenderedNode(startNode))170        return;171    if (!simulateBeforeInput(element, text, browserUtils.isChrome))172        return;173    beforeContentChanged();174    if (needProcessInput)175        needProcessInput = simulateBeforeInput(element, text, browserUtils.isSafari);176    if (needProcessInput) {177        // NOTE: we can type only to the text nodes; for nodes with the 'element-node' type, we use a special behavior178        if (domUtils.isElementNode(startNode))179            _typeTextInElementNode(startNode, text);180        else181            _typeTextInChildTextNode(element, _excludeInvisibleSymbolsFromSelection(currentSelection), text);182    }183    afterContentChanged();184}185function _typeTextToTextEditable (element, text) {186    const elementValue      = domUtils.getElementValue(element);187    const textLength        = text.length;188    let startSelection      = textSelection.getSelectionStart(element);189    let endSelection        = textSelection.getSelectionEnd(element);190    const isInputTypeNumber = domUtils.isInputElement(element) && element.type === 'number';191    if (!simulateBeforeInput(element, text, browserUtils.isChrome))192        return;193    let needProcessInput = simulateTextInput(element, text);194    if (needProcessInput)195        needProcessInput = simulateBeforeInput(element, text, browserUtils.isSafari);196    if (!needProcessInput)197        return;198    // NOTE: the 'maxlength' attribute doesn't work in all browsers. IE still doesn't support input with the 'number' type199    let elementMaxLength = !browserUtils.isIE && isInputTypeNumber ? null : parseInt(element.maxLength, 10);200    if (elementMaxLength < 0)201        elementMaxLength = browserUtils.isIE && browserUtils.version < 17 ? 0 : null;202    if (elementMaxLength === null || isNaN(elementMaxLength) || elementMaxLength > elementValue.length) {203        // NOTE: B254013204        if (isInputTypeNumber && browserUtils.isIOS && elementValue[elementValue.length - 1] === '.') {205            startSelection += 1;206            endSelection += 1;207        }208        domUtils.setElementValue(element, elementValue.substring(0, startSelection) + text +209                          elementValue.substring(endSelection, elementValue.length));...Using AI Code Generation
1import { Selector } from 'testcafe';2test('My first test', async t => {3        .typeText('#developer-name', 'Peter')4        .click('#submit-button')5        .wait(3000);6});Using AI Code Generation
1import { Selector } from 'testcafe';2test('My first test', async t => {3        .typeText('#developer-name', 'John Smith')4        .click('#tried-test-cafe')5        .click('#submit-button');6});7test('My second test', async t => {8        .typeText('#developer-name', 'John Smith')9        .click('#tried-test-cafe')10        .click('#submit-button');11});12test('My third test', async t => {13        .typeText('#developer-name', 'John Smith')14        .click('#tried-test-cafe')15        .click('#submit-button');16});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(3000);6});7test('My second test', async t => {8        .simulateBeforeInput('#developer-name', 'John Smith')9        .click('#submit-button')10        .wait(3000);11});12import { getInstallations } from 'testcafe-browser-tools';13const chromePath = await getInstallations('chrome');14import { getBrowserInfo } from 'testcafe-browser-tools';15const chromeInfo = await getBrowserInfo('chrome');16import { getActiveUsing AI Code Generation
1import { Selector, ClientFunction } from 'testcafe';2test('My first test', async t => {3        .typeText('#developer-name', 'John Smith')4        .click('#submit-button')5        .expect(Selector('#article-header').innerText).eql('Thank you, John Smith!');6});7const simulateBeforeInput = ClientFunction((text) => {8    const input = document.querySelector('input[type="text"]')9    input.value = text;10    input.dispatchEvent(new Event('input', { bubbles: true }));11});12test('My first test', async t => {13        .typeText('#developer-name', 'John Smith')14        .click('#submit-button')15        .expect(Selector('#article-header').innerText).eql('Thank you, John Smith!');16});17test('My first test', async t => {18        .typeText('#developer-name', 'John Smith')19        .click('#submit-button')20        .expect(Selector('#article-header').innerText).eql('Thank you, John Smith!');21});22test('My first test', async t => {23        .typeText('#developer-name', 'John Smith')24        .click('#submit-button')25        .expect(Selector('#article-header').innerText).eql('Thank you, John Smith!');26});27test('My first test', async t => {28        .typeText('#developer-name', 'John Smith')29        .click('#submit-button')30        .expect(Selector('#article-header').innerText).eql('Thank you, John Smith!');31});32test('My first test', async t => {33        .typeText('#developer-name', 'John Smith')34        .click('#submit-button')35        .expect(Selector('#article-header').innerText).eql('Thank you, John Smith!');36});37test('My firstUsing AI Code Generation
1import { Selector, ClientFunction } from 'testcafe';2test('My first test', async t => {3    const simulateBeforeInput = ClientFunction((selector, text) => {4        const el = document.querySelector(selector);5        const event = new CustomEvent('beforeinput', {6        });7        el.dispatchEvent(event);8    });9        .typeText('#developer-name', 'Peter')10        .click('#submit-button')11        .expect(Selector('#article-header').innerText).eql('Thank you, Peter!');12    await simulateBeforeInput('#developer-name', 'John');13        .click('#submit-button')14        .expect(Selector('#article-header').innerText).eql('Thank you, John!');15});Using AI Code Generation
1test('test', async t => {2        .click('#name')3        .typeText('#name', 'Test')4        .click('#email')5        .typeText('#email', 'Test')6        .click('#phone')7        .typeText('#phone', 'Test')8        .click('#message')9        .typeText('#message', 'Test')10        .click('#submit')11        .wait(1000)12        .click('#name')13        .typeText('#name', 'Test')14        .click('#email')15        .typeText('#email', 'Test')16        .click('#phone')17        .typeText('#phone', 'Test')18        .click('#message')19        .typeText('#message', 'Test')20        .click('#submit')21        .wait(1000)22        .click('#name')23        .typeText('#name', 'Test')24        .click('#email')25        .typeText('#email', 'Test')26        .click('#phone')27        .typeText('#phone', 'Test')28        .click('#message')29        .typeText('#message', 'Test')30        .click('#submit')31        .wait(1000)32        .click('#name')33        .typeText('#name', 'Test')34        .click('#email')35        .typeText('#email', 'Test')36        .click('#phone')37        .typeText('#phone', 'Test')38        .click('#message')39        .typeText('#message', 'Test')40        .click('#submit')41        .wait(1000)42        .click('#name')43        .typeText('#name', 'Test')44        .click('#email')45        .typeText('#email', 'Test')46        .click('#phone')47        .typeText('#phone', 'Test')48        .click('#message')49        .typeText('#message', 'Test')50        .click('#submit')51        .wait(1000)52        .click('#name')53        .typeText('#name', 'Test')54        .click('#email')55        .typeText('#email', 'Test')56        .click('#phone')57        .typeText('#phone', 'Test')58        .click('#message')59        .typeText('#message', 'Test')60        .click('#submit')61        .wait(1000)62        .click('#name')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.
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