Best JavaScript code snippet using testcafe
add-api.js
Source:add-api.js  
...230                return null;231            return filterNodes(nodes, filter, document, void 0, textRe);232            /* eslint-enable no-undef */233        };234        return createDerivativeSelectorWithFilter(getSelector, SelectorBuilder, selectorFn, filterByText, {235            textRe: makeRegExp(text)236        });237    };238    obj.withExactText = text => {239        assertType(is.string, 'withExactText', '"text" argument', text);240        var selectorFn = () => {241            /* eslint-disable no-undef */242            var nodes = selector();243            if (!nodes.length)244                return null;245            return filterNodes(nodes, filter, document, void 0, exactText);246            /* eslint-enable no-undef */247        };248        return createDerivativeSelectorWithFilter(getSelector, SelectorBuilder, selectorFn, filterByText, {249            exactText: text250        });251    };252    obj.withAttribute = (attrName, attrValue) => {253        assertType([is.string, is.regExp], 'withAttribute', '"attrName" argument', attrName);254        attrName = ensureRegExpContext(attrName);255        if (attrValue !== void 0) {256            assertType([is.string, is.regExp], 'withAttribute', '"attrValue" argument', attrValue);257            attrValue = ensureRegExpContext(attrValue);258        }259        var selectorFn = () => {260            /* eslint-disable no-undef */261            var nodes = selector();262            if (!nodes.length)263                return null;264            return filterNodes(nodes, filter, document, void 0, attrName, attrValue);265            /* eslint-enable no-undef */266        };267        return createDerivativeSelectorWithFilter(getSelector, SelectorBuilder, selectorFn, filterByAttr, {268            attrName,269            attrValue270        });271    };272    obj.filter = (filter, dependencies) => {273        assertType([is.string, is.function], 'filter', '"filter" argument', filter);274        filter = convertFilterToClientFunctionIfNecessary('filter', filter, dependencies);275        var selectorFn = () => {276            /* eslint-disable no-undef */277            var nodes = selector();278            if (!nodes.length)279                return null;280            return filterNodes(nodes, filter, document, void 0);281            /* eslint-enable no-undef */282        };283        return createDerivativeSelectorWithFilter(getSelector, SelectorBuilder, selectorFn, filter);284    };285    obj.filterVisible = () => {286        const builder = new SelectorBuilder(getSelector(), { filterVisible: true }, { instantiation: 'Selector' });287        return builder.getFunction();288    };289    obj.filterHidden = () => {290        const builder = new SelectorBuilder(getSelector(), { filterHidden: true }, { instantiation: 'Selector' });291        return builder.getFunction();292    };293}294function addCustomDOMPropertiesMethod (obj, getSelector, SelectorBuilder) {295    obj.addCustomDOMProperties = customDOMProperties => {296        assertAddCustomDOMPropertiesOptions(customDOMProperties);297        var builder = new SelectorBuilder(getSelector(), { customDOMProperties }, { instantiation: 'Selector' });298        return builder.getFunction();299    };300}301function addCustomMethodsMethod (obj, getSelector, SelectorBuilder) {302    obj.addCustomMethods = customMethods => {303        assertAddCustomMethods(customMethods);304        var builder = new SelectorBuilder(getSelector(), { customMethods }, { instantiation: 'Selector' });305        return builder.getFunction();306    };307}308function addHierarchicalSelectors (obj, getSelector, SelectorBuilder) {309    // Find310    obj.find = (filter, dependencies) => {311        assertType([is.string, is.function], 'find', '"filter" argument', filter);312        filter = convertFilterToClientFunctionIfNecessary('find', filter, dependencies);313        var selectorFn = () => {314            /* eslint-disable no-undef */315            return expandSelectorResults(selector, node => {316                if (typeof filter === 'string') {317                    return typeof node.querySelectorAll === 'function' ?318                        node.querySelectorAll(filter) :319                        null;320                }321                var results = [];322                var visitNode = currentNode => {323                    var cnLength = currentNode.childNodes.length;324                    for (var i = 0; i < cnLength; i++) {325                        var child = currentNode.childNodes[i];326                        results.push(child);327                        visitNode(child);328                    }329                };330                visitNode(node);331                return filterNodes(results, filter, null, node);332            });333            /* eslint-enable no-undef */334        };335        return createDerivativeSelectorWithFilter(getSelector, SelectorBuilder, selectorFn, filter, { expandSelectorResults });336    };337    // Parent338    obj.parent = (filter, dependencies) => {339        if (filter !== void 0)340            assertType([is.string, is.function, is.number], 'parent', '"filter" argument', filter);341        filter = convertFilterToClientFunctionIfNecessary('find', filter, dependencies);342        var selectorFn = () => {343            /* eslint-disable no-undef */344            return expandSelectorResults(selector, node => {345                var parents = [];346                for (var parent = node.parentNode; parent; parent = parent.parentNode)347                    parents.push(parent);348                return filter !== void 0 ? filterNodes(parents, filter, document, node) : parents;349            });350            /* eslint-enable no-undef */351        };352        return createDerivativeSelectorWithFilter(getSelector, SelectorBuilder, selectorFn, filter, { expandSelectorResults });353    };354    // Child355    obj.child = (filter, dependencies) => {356        if (filter !== void 0)357            assertType([is.string, is.function, is.number], 'child', '"filter" argument', filter);358        filter = convertFilterToClientFunctionIfNecessary('find', filter, dependencies);359        var selectorFn = () => {360            /* eslint-disable no-undef */361            return expandSelectorResults(selector, node => {362                var childElements = [];363                var cnLength      = node.childNodes.length;364                for (var i = 0; i < cnLength; i++) {365                    var child = node.childNodes[i];366                    if (child.nodeType === 1)367                        childElements.push(child);368                }369                return filter !== void 0 ? filterNodes(childElements, filter, node, node) : childElements;370            });371            /* eslint-enable no-undef */372        };373        return createDerivativeSelectorWithFilter(getSelector, SelectorBuilder, selectorFn, filter, { expandSelectorResults });374    };375    // Sibling376    obj.sibling = (filter, dependencies) => {377        if (filter !== void 0)378            assertType([is.string, is.function, is.number], 'sibling', '"filter" argument', filter);379        filter = convertFilterToClientFunctionIfNecessary('find', filter, dependencies);380        var selectorFn = () => {381            /* eslint-disable no-undef */382            return expandSelectorResults(selector, node => {383                var parent = node.parentNode;384                if (!parent)385                    return null;386                var siblings = [];387                var cnLength = parent.childNodes.length;388                for (var i = 0; i < cnLength; i++) {389                    var child = parent.childNodes[i];390                    if (child.nodeType === 1 && child !== node)391                        siblings.push(child);392                }393                return filter !== void 0 ? filterNodes(siblings, filter, parent, node) : siblings;394            });395            /* eslint-enable no-undef */396        };397        return createDerivativeSelectorWithFilter(getSelector, SelectorBuilder, selectorFn, filter, { expandSelectorResults });398    };399    // Next sibling400    obj.nextSibling = (filter, dependencies) => {401        if (filter !== void 0)402            assertType([is.string, is.function, is.number], 'nextSibling', '"filter" argument', filter);403        filter = convertFilterToClientFunctionIfNecessary('find', filter, dependencies);404        var selectorFn = () => {405            /* eslint-disable no-undef */406            return expandSelectorResults(selector, node => {407                var parent = node.parentNode;408                if (!parent)409                    return null;410                var siblings  = [];411                var cnLength  = parent.childNodes.length;412                var afterNode = false;413                for (var i = 0; i < cnLength; i++) {414                    var child = parent.childNodes[i];415                    if (child === node)416                        afterNode = true;417                    else if (afterNode && child.nodeType === 1)418                        siblings.push(child);419                }420                return filter !== void 0 ? filterNodes(siblings, filter, parent, node) : siblings;421            });422            /* eslint-enable no-undef */423        };424        return createDerivativeSelectorWithFilter(getSelector, SelectorBuilder, selectorFn, filter, { expandSelectorResults });425    };426    // Prev sibling427    obj.prevSibling = (filter, dependencies) => {428        if (filter !== void 0)429            assertType([is.string, is.function, is.number], 'prevSibling', '"filter" argument', filter);430        filter = convertFilterToClientFunctionIfNecessary('find', filter, dependencies);431        var selectorFn = () => {432            /* eslint-disable no-undef */433            return expandSelectorResults(selector, node => {434                var parent = node.parentNode;435                if (!parent)436                    return null;437                var siblings = [];438                var cnLength = parent.childNodes.length;439                for (var i = 0; i < cnLength; i++) {440                    var child = parent.childNodes[i];441                    if (child === node)442                        break;443                    if (child.nodeType === 1)444                        siblings.push(child);445                }446                return filter !== void 0 ? filterNodes(siblings, filter, parent, node) : siblings;447            });448            /* eslint-enable no-undef */449        };450        return createDerivativeSelectorWithFilter(getSelector, SelectorBuilder, selectorFn, filter, { expandSelectorResults });451    };452}453export function addAPI (obj, getSelector, SelectorBuilder, customDOMProperties, customMethods) {454    addSnapshotPropertyShorthands(obj, getSelector, customDOMProperties, customMethods);455    addCustomDOMPropertiesMethod(obj, getSelector, SelectorBuilder);456    addCustomMethodsMethod(obj, getSelector, SelectorBuilder);457    addFilterMethods(obj, getSelector, SelectorBuilder);458    addHierarchicalSelectors(obj, getSelector, SelectorBuilder);459    addCounterProperties(obj, getSelector, SelectorBuilder);...Using AI Code Generation
1import { Selector } from 'testcafe';2test('My first test', async t => {3    const createDerivativeSelectorWithFilter = (parent, filter) => {4        return Selector((parent, filter) => {5            const children = parent.children;6            for (let i = 0; i < children.length; i++) {7                if (filter(children[i]))8                    return children[i];9            }10            return null;11        }, { dependencies: { filter } })(parent);12    };13    const filter = (node) => node.tagName === 'INPUT' && node.type === 'checkbox';14    const checkbox = createDerivativeSelectorWithFilter('#developer-name', filter);15        .typeText('#developer-name', 'John Smith')16        .click(checkbox)17        .typeText('#comments', 'Hello there!')18        .click('#submit-button')19        .expect(Selector('#article-header').innerText).eql('Thank you, John Smith!');20});21import { Selector } from 'testcafe';22test('My first test', async t => {23    const createDerivativeSelectorWithFilter = (parent, filter) => {24        return Selector((parent, filter) => {25            const children = parent.children;26            for (let i = 0; i < children.length; i++) {27                if (filter(children[i]))28                    return children[i];29            }30            return null;31        }, { dependencies: { filter } })(parent);32    };33    const filter = (node) => node.tagName === 'INPUT' && node.type === 'checkbox';34    const checkbox = createDerivativeSelectorWithFilter('#developer-name', filter);35        .typeText('#developer-name', 'John Smith')36        .click(checkbox)37        .typeText('#comments', 'Hello there!')38        .click('#submit-button')39        .expect(Selector('#article-header').innerText).eql('Thank you, John Smith!');40});41import { Selector } from 'testcafe';Using AI Code Generation
1import { Selector } from 'testcafe';2test('My first test', async t => {3    const createDerivativeSelectorWithFilter = (baseSelector, filter) => {4        return Selector((baseSelector, filter, idx) => {5            const arr = [].slice.call(baseSelector());6            return arr.filter(filter)[idx];7        }, { dependencies: { baseSelector, filter } });8    };9    const getRadio = (text) => {10        const radio = Selector('label').withText(text);11        return createDerivativeSelectorWithFilter(radio, el => el.previousElementSibling);12    };13        .click(getRadio('Linux'))14        .click('#submit-button');15});16import { Selector } from 'testcafe';17test('My first test', async t => {18    const createDerivativeSelectorWithFilter = (baseSelector, filter) => {19        return Selector((baseSelector, filter, idx) => {20            const arr = [].slice.call(baseSelector());21            return arr.filter(filter)[idx];22        }, { dependencies: { baseSelector, filter } });23    };24    const getRadio = (text) => {25        const radio = Selector('label').withText(text);26        return createDerivativeSelectorWithFilter(radio, el => el.previousElementSibling);27    };28        .click(getRadio('Linux'))29        .click('#submit-button');30});31import { Selector } from 'testcafe';32test('My first test', async t => {33    const createDerivativeSelectorWithFilter = (baseSelector, filter) => {34        return Selector((baseSelector, filter, idx) => {35            const arr = [].slice.call(baseSelector());36            return arr.filter(filter)[idx];37        }, { dependencies: { baseSelector, filter } });38    };39    const getRadio = (text) => {40        const radio = Selector('label').withText(text);Using AI Code Generation
1import { Selector } from 'testcafe';2test('My Test', async t => {3    const filterFn = node => node.id === 'main-form';4    const form = Selector('#main-form', filterFn);5    await t.expect(form.exists).ok();6});Using AI Code Generation
1import { Selector } from 'testcafe';2import { createDerivativeSelectorWithFilter } from '@deriv/testcafe-utils';3test('My test', async t => {4    const getDerivativeSelector = createDerivativeSelectorWithFilter(Selector);5    const linkWithText = getDerivativeSelector('a').withText('Link text');6    const linkWithText2 = getDerivativeSelector('a').withText('Link text 2');7        .click(linkWithText)8        .click(linkWithText2);9});10import { Selector } from 'testcafe';11import { createDerivativeSelectorWithTextContent } from '@deriv/testcafe-utils';12test('My test', async t => {13    const getDerivativeSelector = createDerivativeSelectorWithTextContent(Selector);14    const linkWithText = getDerivativeSelector('Link text');15    const linkWithText2 = getDerivativeSelector('Link text 2');16        .click(linkWithText)17        .click(linkWithText2);18});19import { Selector } from 'testcafe';20import { createDerivativeSelectorWithTextContentFilter } from '@deriv/testcafe-utils';21test('My test', async tUsing AI Code Generation
1import { Selector } from 'testcafe';2const createDerivativeSelectorWithFilter = require('testcafe-derivative-selector');3const button = Selector('button');4const buttonWithText = createDerivativeSelectorWithFilter(button, 'text');5test('My test', async t => {6        .expect(buttonWithText('Submit').exists).ok()7        .click(buttonWithText('Submit'));8});9{10  "scripts": {11  },12  "devDependencies": {13  }14}15import { Selector } from 'testcafe';16const createDerivativeSelectorWithFilter = require('testcafe-derivative-selector');17const button = Selector('button');18const buttonWithText = createDerivativeSelectorWithFilter(button, 'text');19test('My test', async t => {20        .expect(buttonWithText('Submit').exists).ok()21        .click(buttonWithText('Submit'));22});23import { Selector } from 'testcafe';24const createDerivativeSelectorWithFilter = require('testcafe-derivative-selector');25const button = Selector('button');26const buttonWithText = createDerivativeSelectorWithFilter(button, 'text');27test('My test', async t => {Using AI Code Generation
1import { Selector } from 'testcafe';2test('My Test', async t => {3    const filter = Selector('.dx-datagrid-filter-row').find('input');4    const filterInput = await Selector.createDerivativeSelectorWithFilter(filter, (node, idx) => {5        return node.getAttribute('type') === 'text';6    });7        .typeText(filterInput, 'test');8});9import { Selector } from 'testcafe';10test('My Test', async t => {11    const filter = Selector('.dx-datagrid-filter-row').find('input');12    const filterInput = await Selector.createDerivativeSelectorWithFilter(filter, (node, idx) => {13        return node.getAttribute('type') === 'text';14    });15        .typeText(filterInput, 'test');16});17test('My Test', async t => {18    const filter = Selector('.dx-datagrid-filter-row').find('input');19    const filterInput = await Selector.createDerivativeSelectorWithFilter(filter, (node, idx) => {20        return node.getAttribute('type') === 'text';21    });22        .typeText(filterInput, 'test');23});24test('My Test', async t => {25    const filter = Selector('.dx-datagrid-filter-row').find('input');26    const filterInput = await Selector.createDerivativeSelectorWithFilter(filter, (node, idx) => {27        return node.getAttribute('type') === 'text';28    });29        .typeText(filterInput, 'test');30});31test('My Test', async t => {32    const filter = Selector('.dx-datagrid-filter-row').find('input');33    const filterInput = await Selector.createDerivativeSelectorWithFilter(filter, (node, idx) => {34        return node.getAttribute('type') === 'text';35    });36        .typeText(filterInput, 'test');37});Using AI Code Generation
1import { Selector } from 'testcafe';2test('My test', async t => {3    const selector = Selector(() => {4        const el = document.createElement('div');5        el.className = 'foo';6        return el;7    });8    await t.expect(selector.withText('bar').exists).ok();9});10test('My test', async t => {11    const selector = Selector(() => {12        const el = document.createElement('div');13        el.className = 'foo';14        return el;15    });16    await t.expect(selector.withText('bar').exists).ok();17});18Your name to display (optional):19Your name to display (optional):20test('My test', async t => {21    const selector = Selector(() => {22        const el = document.createElement('div');23        el.className = 'foo';24        return el;25    });26    await t.expect(selector.withText('bar').exists).ok();27});28Your name to display (optional):Using AI Code Generation
1import { Selector } from 'testcafe';2const createDerivativeSelectorWithFilter = (selector, filter) => {3    const createDerivativeSelector = (selector, filter) => {4        return Selector((baseSelector, filter) => {5            const filtered = Array.from(baseSelector()).filter(filter);6            if (filtered.length === 0) {7                throw new Error('The filter did not match any element.');8            }9            return filtered;10        }, { dependencies: { filter } })(selector);11    };12    return createDerivativeSelector(selector, filter);13};14const searchBox = Selector('#searchbox');15const searchBoxWithFilter = createDerivativeSelectorWithFilter(searchBox, el => {16    return el.value === 'hello';17});18test('Create a selector with filter', async t => {19        .typeText(searchBox, 'hello')20        .expect(searchBoxWithFilter.value).eql('hello');21});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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