Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use isSelector method in ng-mocks

Best JavaScript code snippet using ng-mocks

Regex.js

Source:Regex.js

1/**2 * ==========================3 * @description Regular expression implementation. Used for defining templated identifiers in constrains, as well as in pushing trie algorithm.4 * ==========================5 *6 * @author  Evgeny Savelyev7 * @since   19.01.188 * @version 1.0.09 * @license See the LICENCE file in the project root.10 */11"use strict";12function compileString(str, index, openMarker) {13    const part = new RegexPart(null);14    let prevSubpart = null;15    if (openMarker === "[") {16        part.isSelector = true;17    }18    for (; index.ind < str.length; index.ind += 1) {19        switch (str[index.ind]) {20        case "\\":21            index.ind += 1;22            switch (str[index.ind]) {23            case "(":24            case ")":25            case "[":26            case "]":27            case "*":28            case "+":29            case "\\":30                part.subparts.push(new RegexPart(str[index.ind]));31                break;32            default:33                throw new Error(`Regex error: bad character after '\\' symbol in regex "${str}" (position ${index.ind - 1})`);34            }35            break;36        case ")":37            if (openMarker !== "(") {38                throw new Error(`Regex error: unexpected ')' in regex "${str}" (position ${index.ind})`);39            }40            return part;41        case "]":42            if (openMarker !== "[") {43                throw new Error(`Regex error: unexpected ')' in regex "${str}" (position ${index.ind})`);44            }45            return part;46        case "(":47            index.ind += 1;48            part.subparts.push(compileString(str, index, "("));49            break;50        case "[":51            index.ind += 1;52            part.subparts.push(compileString(str, index, "["));53            break;54        case "*":55            if (part.subparts.length === 0) {56                throw new Error(`Regex error: unexpected '*' in regex "${str}" (position ${index.ind})`);57            }58            prevSubpart = part.subparts[part.subparts.length - 1];59            if (prevSubpart.isClosed) {60                throw new Error(`Regex error: unexpected '*' in regex "${str}" (position ${index.ind})`);61            }62            prevSubpart.isClosed = true;63            break;64        case "+":65            if (part.subparts.length === 0) {66                throw new Error(`Regex error: unexpected '+' in regex "${str}" (position ${index.ind})`);67            }68            prevSubpart = part.subparts[part.subparts.length - 1];69            if (prevSubpart.isClosed) {70                throw new Error(`Regex error: unexpected '+' in regex "${str}" (position ${index.ind})`);71            }72            part.subparts.push(prevSubpart.getCopy());73            part.subparts[part.subparts.length - 1].isClosed = true;74            break;75        default:76            part.subparts.push(new RegexPart(str[index.ind]));77        }78    }79    if (openMarker !== null) {80        throw new Error(`Regex error: unclosed '${openMarker}' in regex "${str}"`);81    }82    return part;83}84/**85 * @class86 * @classdesc Regular expression implementation. Used for defining templated identifiers in constrains, as well as in pushing trie algorithm.87 *88 * @property {string} str regex string representation89 * @property {RegexPart} rootPart root part of compiled regular expression90 * @property {Set<symbol>} firstSet set of symbols regular expression can start with91 */92class Regex {93    constructor(regexString) {94        if (typeof regexString === "string") {95            this.rootPart = compileString(regexString, { ind : 0 }, null);96            this.str      = regexString;97        } else { /* For internal usage only */98            this.rootPart = regexString;99            this.str = this.rootPart.toString();100        }101        this.firstSet = this.rootPart.getFirstSet();102    }103    firstSymbolMatches(symbol) {104        return this.firstSet.has(symbol);105    }106    detachFirstSymbol(symbol) {107        return new Regex(this.rootPart.detachFirstSymbol(symbol));108    }109    isEmpty() {110        return this.str.length === 0;111    }112    toString() {113        return this.str;114    }115}116/**117 * @class118 * @classdesc Regular expression part. Constructs recursively.119 *120 * @property {symbol|null} symbol either symbol (then it is not recursive part) or null (then it is recursive defined by subparts)121 * @property {RegexPart[]} subparts subparts (not used whether symbol is not null)122 * @property {boolean} isClosed whether part is of the form "(...)*"123 * @property {boolean} isSelector whether part is of the form "[...]"124 */125class RegexPart {126    constructor(symbol) {127        this.symbol     = symbol;128        this.subparts   = [];129        this.isClosed   = false;130        this.isSelector = false;131    }132    /**133     * @desc Returns a set of symbols regex part can start with134     *135     * @returns {Set<symbol>} set of symbols part can begin with136     */137    getFirstSet() {138        const set = new Set();139        if (this.symbol !== null) {140            set.add(this.symbol);141        } else {142            for (const subpart of this.subparts) {143                const subset = subpart.getFirstSet();144                for (const symbol of subset) {145                    set.add(symbol);146                }147                if (!this.isSelector && !subpart.isClosed) {148                    break;149                }150            }151        }152        return set;153    }154    getWithoutFirstSubpart() {155        const res = new RegexPart(this.symbol);156        for (let i = 1; i < this.subparts.length; i += 1) {157            res.subparts.push(this.subparts[i].getCopy());158        }159        res.isClosed   = this.isClosed;160        res.isSelector = this.isSelector;161        return res;162    }163    detachFirstSymbol(symbol) {164        let curState = this;165        while (curState.subparts.length > 0) {166            const [subpart] = curState.subparts;167            if (subpart.getFirstSet().has(symbol)) {168                if (subpart.symbol !== null) {169                    return subpart.isClosed ? curState.getCopy() : curState.getWithoutFirstSubpart();170                } else {171                    let detachedSubpart = null;172                    if (subpart.isSelector) {173                        let i = 0;174                        for (; i < subpart.subparts.length; i += 1) {175                            if (subpart.subparts[i].getFirstSet().has(symbol)) {176                                break;177                            }178                        }179                        if (i === subpart.subparts.length) {180                            throw new Error(`'${symbol}' can not be attached from regex "${this.toString()}"`);181                        }182                        detachedSubpart = subpart.subparts[i];183                    } else {184                        detachedSubpart = subpart.detachFirstSymbol(symbol);185                    }186                    const res = new RegexPart(curState.symbol);187                    res.isClosed   = false;188                    res.isSelector = false;189                    res.subparts.push(detachedSubpart);190                    if (curState.isClosed) {191                        res.subparts.push(subpart.getCopy());192                    }193                    for (let i = 1; i < curState.subparts.length; i += 1) {194                        res.subparts.push(curState.subparts[i].getCopy());195                    }196                    curState = res;197                }198            } else if (subpart.isClosed) {199                curState = curState.getWithoutFirstSubpart();200            } else {201                throw new Error(`'${symbol}' can not be attached from regex "${this.toString()}"`);202            }203        }204        throw new Error(`'${symbol}' can not be attached from regex "${this.toString()}"`);205    }206    getCopy() {207        const copy = new RegexPart(this.symbol);208        for (const subpart of this.subparts) {209            copy.subparts.push(subpart.getCopy());210        }211        copy.isClosed   = this.isClosed;212        copy.isSelector = this.isSelector;213        return copy;214    }215    toString() {216        if (this.symbol !== null) {217            let prefix = "";218            if (this.symbol === "(" ||219                this.symbol === ")" ||220                this.symbol === "[" ||221                this.symbol === "]" ||222                this.symbol === "*" ||223                this.symbol === "+" ||224                this.symbol === "\\") {225                prefix = "\\";226            }227            return prefix + this.symbol + (this.isClosed ? "*" : "");228        }229        let res = "";230        if (this.isSelector) {231            res += "[";232        }233        for (const subpart of this.subparts) {234            res += subpart.symbol === null && !subpart.isSelector ? "(" + subpart.toString() + ")" : subpart.toString();235        }236        if (this.isSelector) {237            res += "]";238        }239        return res + (this.isClosed ? "*" : "");240    }241}...

helpers.js

Source:helpers.js

1module.exports = {2    3    click: async function(page, selector, opts={}, isSelector=true) {4        try {5            if(isSelector) {6                await page.waitForSelector(selector)7            } else {8                await page.waitForXPath(selector)9            }10            await page.click(selector, opts)11        } catch (error) {12            throw new Error(`Error to try click in element: ${selector}`)13        }14    },15    16    doubleCLick: async function(page, selector) {17        try {18            await page.waitForSelector(selector)19            await page.click(selector, {clickCount:2})20        } catch (error) {21            throw new Error(`Error to try doubleClick in element: ${selector}`)22        }23    },24    rightClick: async function(page, selector, isSelector=true) {25        try {26            if(isSelector) {27                await page.waitForSelector(selector)28            } else {29                await page.waitForXPath(selector)30            }31            await page.click(selector, {button:'right'})32        } catch (error) {33            throw new Error(`Error to try rightClick in element: ${selector}`)34        }35    },36    getText: async function(page, selector, isSelector=true) {37        try {38            if(isSelector) {39                await page.waitForSelector(selector)40                return await page.$eval(selector, (e)=>e.textContent)41            } else {42                const data = await page.waitForXPath(selector)43                return await page.evaluate((text) => text.textContent, data)44            }45        } catch (error) {46            throw new Error(`Error to geting text in element: ${selector}`)47        }48    },49    setText: async function(page, selector, text, opts={}, isSelector=true) {50        try {51            if(isSelector) {52                await page.waitForSelector(selector)53            } else {54                await page.waitForXPath(selector)55            }56            return await page.type(selector, text, opts)57        } catch (error) {58            throw new Error(`Error to seting text in element: ${selector}`)59        }60    },61    getCount: async function(page, selector, isSelector=true) {62        try {63            if(isSelector) {64                await page.waitForSelector(selector)65            } else {66                await page.waitForXPath(selector)67            }68            return await page.$$eval(selector, (e)=>e.length)69        } catch (error) {70            throw new Error(`Error to geting count in element: ${selector}`)71        }72    },73    selectCombo: async function(page, selector, op, isSelector=true) {74        try {75            if(isSelector) {76                await page.waitForSelector(selector)77            } else {78                await page.waitForXPath(selector)79            }80            return await page.select(selector, op)81        } catch (error) {82            throw new Error(`Error to geting count in element: ${selector}`)83        }84    }...

selectors.ts

Source:selectors.ts

...8	isIdSelector = isSelector<IdSelector>('#'),9	idSelector = asSelector<IdSelector>('#', isIdSelector);10function isSelector<T extends string>(regexPrefix: string) {11	const prefixRX = new RegExp(String.raw`^(${regexPrefix}[\w-_]*)?$`);12	return function isSelector(selector: string): selector is T {13		return typeof selector === 'string' && !!selector.match(prefixRX);14	};15}16function asSelector<T extends string>(17	prefix: string,18	isSelector: (selector: string) => selector is T19) {20	return function asSelector(selector: string): T {21		if (isSelector(selector)) {22			return selector;23		}24		selector = selector.trim().replace(/[^\w-_]/g, '-');25		selector = prefix + (selector[0] === '-' ? selector.substr(1) : selector);26		if (!isSelector(selector)) {27			throw new Error('Conversion to class selector failed');28		}29		return selector;30	};31}32function joinSelectors<T extends string>(33	prefix: string,34	createSelector: (selector: string) => T35) {36	return function joinSelectors(...selectors: string[]) {37		return selectors.map(selector => createSelector(selector)).join('') as T;38	};...

Using AI Code Generation

1import { isSelector } from 'ng-mocks';2import { Component, NgModule } from '@angular/core';3import { TestBed } from '@angular/core/testing';4@Component({5})6class TestComponent {}7@NgModule({8})9class TestModule {}10describe('isSelector', () => {11  beforeEach(() => {12    TestBed.configureTestingModule({ imports: [TestModule] });13  });14  it('should return true for selector', () => {15    expect(isSelector('test-component')).toBe(true);16  });17});18import { isComponent } from 'ng-mocks';19import { Component, NgModule } from '@angular/core';20import { TestBed } from '@angular/core/testing';21@Component({22})23class TestComponent {}24@NgModule({25})26class TestModule {}27describe('isComponent', () => {28  beforeEach(() => {29    TestBed.configureTestingModule({ imports: [TestModule] });30  });31  it('should return true for component', () => {32    expect(isComponent(TestComponent)).toBe(true);33  });34});35import { isDirective } from 'ng-mocks';36import { Component, Directive, NgModule } from '@angular/core';37import { TestBed } from '@angular/core/testing';38@Component({39})40class TestComponent {}41@Directive({42})43class TestDirective {}44@NgModule({45})46class TestModule {}47describe('isDirective', () => {48  beforeEach(() => {49    TestBed.configureTestingModule({ imports: [TestModule] });

Using AI Code Generation

1import { isSelector } from 'ng-mocks';2describe('TestComponent', () => {3  it('should test isSelector method', () => {4    expect(isSelector('test')).toBe(true);5    expect(isSelector('test-test')).toBe(true);6    expect(isSelector('test-test-test')).toBe(true);7    expect(isSelector('test-test-test-test')).toBe(true);8    expect(isSelector('test-test-test-test-test')).toBe(true);9    expect(isSelector('test-test-test-test-test-test')).toBe(true);10    expect(isSelector('test-test-test-test-test-test-test')).toBe(true);11    expect(isSelector('test-test-test-test-test-test-test-test')).toBe(true);12    expect(isSelector('test-test-test-test-test-test-test-test-test')).toBe(true);13    expect(isSelector('test-test-test-test-test-test-test-test-test-test')).toBe(true);14    expect(isSelector('test-test-test-test-t

Using AI Code Generation

1import { isSelector } from 'ng-mocks';2describe('MyComponent', () => {3  it('should work', () => {4    expect(isSelector('div')).toBe(true);5    expect(isSelector('div#id')).toBe(true);6    expect(isSelector('div.class')).toBe(true);7    expect(isSelector('div#id.class')).toBe(true);8    expect(isSelector('div.class#id')).toBe(true);9    expect(isSelector('div > div')).toBe(true);10    expect(isSelector('div > div > div')).toBe(true);11    expect(isSelector('div > div + div')).toBe(true);12    expect(isSelector('div ~ div')).toBe(true);13    expect(isSelector('div ~ div ~ div')).toBe(true);14    expect(isSelector('div + div ~ div')).toBe(true);15    expect(isSelector('div ~ div + div')).toBe(true);16    expect(isSelector('div + div + div')).toBe(true);17    expect(isSelector('div')).toBe(true);18    expect(isSelector('div#id')).toBe(true);19    expect(isSelector('div.class')).toBe(true);20    expect(isSelector('div#id.class')).toBe(true);21    expect(isSelector('div.class#id')).toBe(true);22    expect(isSelector('div > div')).toBe(true);23    expect(isSelector('div > div > div')).toBe(true);24    expect(isSelector('div > div + div')).toBe(true);25    expect(isSelector('div ~ div')).toBe(true);26    expect(isSelector('div ~ div ~ div')).toBe(true);27    expect(isSelector('div + div ~ div')).toBe(true);28    expect(isSelector('div ~ div + div')).toBe(true);29    expect(isSelector('div + div + div')).toBe(true);30    expect(isSelector('div')).toBe(true);31    expect(isSelector('div#id')).toBe(true);32    expect(isSelector('div.class')).toBe(true);33    expect(isSelector('div#id.class')).toBe(true);34    expect(isSelector('div.class#id')).toBe(true);35    expect(isSelector('div > div')).toBe(true);36    expect(isSelector('div > div > div')).toBe(true);37    expect(isSelector('div > div + div')).toBe(true);38    expect(isSelector('div ~ div')).toBe(true);39    expect(isSelector('div ~ div ~ div')).toBe(true);

Using AI Code Generation

1import { isSelector } from 'ng-mocks';2const isSelector = isSelector('my-selector');3import { isSelector } from 'ng-mocks';4const isSelector = isSelector('my-selector');5import { isSelector } from 'ng-mocks';6describe('my-selector', () => {7  it('should be a selector', () => {8    expect(isSelector('my-selector')).toEqual(true);9  });10});11import { isSelector } from 'ng-mocks';12describe('my-selector', () => {13  it('should be a selector', () => {14    expect(isSelector('my-selector')).toEqual(true);15  });16});

Using AI Code Generation

1import { isSelector } from 'ng-mocks';2const element = isSelector('div') ? 'div' : 'span';3import { isSelector } from 'ng-mocks';4const element = isSelector('div') ? 'div' : 'span';5const isSelector = require('ng-mocks').isSelector;6const element = isSelector('div') ? 'div' : 'span';7import { isSelector } from 'ng-mocks';8const element = isSelector('div') ? 'div' : 'span';9import { isSelector } from 'ng-mocks';10const element = isSelector('div') ? 'div' : 'span';11const isSelector = require('ng-mocks').isSelector;12const element = isSelector('div') ? 'div' : 'span';13import { isSelector } from 'ng-mocks';14const element = isSelector('div') ? 'div' : 'span';15const isSelector = require('ng-mocks').isSelector;16const element = isSelector('div') ? 'div' : 'span';17import { isSelector } from 'ng-mocks';18const element = isSelector('div') ?

Using AI Code Generation

1it('should return true if the selector is found', () => {2  const fixture = createComponent(MyComponent);3  expect(isSelector(fixture, 'div')).toBe(true);4});5it('should return false if the selector is not found', () => {6  const fixture = createComponent(MyComponent);7  expect(isSelector(fixture, 'a')).toBe(false);8});9it('should return true if the selector is found', () => {10  const fixture = createComponent(MyComponent);11  expect(isSelector(fixture, 'div')).toBe(true);12});13it('should return false if the selector is not found', () => {14  const fixture = createComponent(MyComponent);15  expect(isSelector(fixture, 'a')).toBe(false);16});17it('should return true if the selector is found', () => {18  const fixture = createComponent(MyComponent);19  expect(isSelector(fixture, 'div')).toBe(true);20});21it('should return false if the selector is not found', () => {22  const fixture = createComponent(MyComponent);23  expect(isSelector(fixture, 'a')).toBe(false);24});25it('should return true if the selector is found', () => {26  const fixture = createComponent(MyComponent);27  expect(isSelector(fixture, 'div')).toBe(true);28});29it('should return false if the selector is not found', () => {30  const fixture = createComponent(MyComponent);31  expect(isSelector(fixture, 'a')).toBe(false);32});33it('should return true if the selector is found', () => {34  const fixture = createComponent(MyComponent);35  expect(isSelector(fixture, 'div')).toBe(true);36});37it('should return false if the selector is

Using AI Code Generation

1import { isSelector } from 'ng-mocks';2const selector = 'app-root';3const isSelectorValid = isSelector(selector);4console.log(isSelectorValid);5import { isSelector } from 'ng-mocks';6const selector = 'app-root';7const isSelectorValid = isSelector(selector);8console.log(isSelectorValid);9import { isSelector } from 'ng-mocks';10const selector = 'app-root';11const isSelectorValid = isSelector(selector);12console.log(isSelectorValid);13import { isSelector } from 'ng-mocks';14const selector = 'app-root';15const isSelectorValid = isSelector(selector);16console.log(isSelectorValid);17import { isSelector } from 'ng-mocks';18const selector = 'app-root';19const isSelectorValid = isSelector(selector);20console.log(isSelectorValid);

Automation Testing Tutorials

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.