Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! 
How to use ngOnChanges method in ng-mocks
Best JavaScript code snippet using ng-mocks
date-time-picker.component.spec.ts
Source:date-time-picker.component.spec.ts 
...61 component.required = true;62 });63 it('should set required validator on date', () => {64 jest.spyOn(component.form.get('date'), 'setValidators');65 component.ngOnChanges();66 expect(component.form.get('date').setValidators).toHaveBeenCalledWith(Validators.required);67 });68 it('should set required validator on time', () => {69 jest.spyOn(component.form.get('time'), 'setValidators');70 component.ngOnChanges();71 expect(component.form.get('time').setValidators).toHaveBeenCalledWith(Validators.required);72 });73 });74 describe('not required', () => {75 beforeEach(() => {76 component.required = undefined;77 });78 it('should cancel validator on date', () => {79 jest.spyOn(component.form.get('date'), 'setValidators');80 component.ngOnChanges();81 expect(component.form.get('date').setValidators).toHaveBeenCalledWith(null);82 });83 it('should cancel validator on time', () => {84 jest.spyOn(component.form.get('time'), 'setValidators');85 component.ngOnChanges();86 expect(component.form.get('time').setValidators).toHaveBeenCalledWith(null);87 });88 it('should not change the label if undefined', () => {89 component.label = undefined;90 component.ngOnChanges();91 expect(component.label).toBeUndefined();92 });93 });94 describe('required, not showing date', () => {95 beforeEach(() => {96 component.required = true;97 component.showDate = false;98 });99 it('should not set validators on date', () => {100 jest.spyOn(component.form.get('date'), 'setValidators');101 component.ngOnChanges();102 expect(component.form.get('date').setValidators).toHaveBeenCalledTimes(0);103 });104 it('should set required validator on time', () => {105 jest.spyOn(component.form.get('time'), 'setValidators');106 component.ngOnChanges();107 expect(component.form.get('time').setValidators).toHaveBeenCalledWith(Validators.required);108 });109 });110 describe('required, not showing time', () => {111 beforeEach(() => {112 component.required = true;113 component.showTime = false;114 });115 it('should set required validators on date', () => {116 jest.spyOn(component.form.get('date'), 'setValidators');117 component.ngOnChanges();118 expect(component.form.get('date').setValidators).toHaveBeenCalledWith(Validators.required);119 });120 it('should not set validators on time', () => {121 jest.spyOn(component.form.get('time'), 'setValidators');122 component.ngOnChanges();123 expect(component.form.get('time').setValidators).toHaveBeenCalledTimes(0);124 });125 });126 describe('Error handling', () => {127 describe('Invalid date', () => {128 beforeEach(() => {129 component.errors = {['date']: {required: true}};130 component.ngOnChanges();131 });132 it('should set error correctly in date field', () => {133 expect(component.form.get('date').errors).toEqual({date: {required: true}});134 });135 it('should set no errors in time field', () => {136 expect(component.form.get('time').errors).toBeNull();137 });138 });139 describe('Invalid after today', () => {140 beforeEach(() => {141 component.errors = {dateAfterToday: true};142 component.ngOnChanges();143 });144 it('should set error correctly in date field', () => {145 expect(component.form.get('date').errors).toEqual({dateAfterToday: true});146 });147 it('should set no errors in time field', () => {148 expect(component.form.get('time').errors).toBeNull();149 });150 });151 describe('Date too small', () => {152 beforeEach(() => {153 component.errors = {dateTooSmall: true};154 component.ngOnChanges();155 });156 it('should set error correctly in date field', () => {157 expect(component.form.get('date').errors).toEqual({dateTooSmall: true});158 });159 it('should set no errors in time field', () => {160 expect(component.form.get('time').errors).toBeNull();161 });162 });163 describe('Invalid time', () => {164 beforeEach(() => {165 component.errors = {['time']: {required: true}};166 component.ngOnChanges();167 });168 it('should set no errors in date field', () => {169 expect(component.form.get('date').errors).toBeNull();170 });171 it('should set error correctly in time field', () => {172 expect(component.form.get('time').errors).toEqual({time: {required: true}});173 });174 });175 describe('Invalid time', () => {176 beforeEach(() => {177 component.errors = {timeAfterToday: true};178 component.ngOnChanges();179 });180 it('should set no errors in date field', () => {181 expect(component.form.get('date').errors).toBeNull();182 });183 it('should set error correctly in time field', () => {184 expect(component.form.get('time').errors).toEqual({timeAfterToday: true});185 });186 });187 });188 });...
pagination-display.component.spec.ts
Source:pagination-display.component.spec.ts
...30// it('should calculate correct value for minRecord', () => {31// component.page = 132// component.pageSize = 50;33// component.collectionSize = 500;34// component.ngOnChanges(null);35// expect(component.minRecord).toEqual(1);36// component.page = 237// component.ngOnChanges(null);38// expect(component.minRecord).toEqual(51);39// component.page = 10;40// component.collectionSize = 499;41// component.ngOnChanges(null);42// expect(component.minRecord).toEqual(451);43// component.page = 1144// component.ngOnChanges(null);45// expect(component.minRecord).toEqual(451);46// });47// it('should calculate correct value for maxRecord', () => {48// component.page = 149// component.pageSize = 50;50// component.collectionSize = 500;51// component.ngOnChanges(null);52// expect(component.maxRecord).toEqual(50);53// component.page = 254// component.ngOnChanges(null);55// expect(component.maxRecord).toEqual(100);56// component.page = 10;57// component.collectionSize = 499;58// component.ngOnChanges(null);59// expect(component.maxRecord).toEqual(499);60// component.page = 11;61// component.ngOnChanges(null);62// expect(component.maxRecord).toEqual(499);63// });64// it('should calculate correct value for recordCount', () => {65// component.page = 166// component.pageSize = 50;67// component.collectionSize = 500;68// component.ngOnChanges(null);69// expect(component.recordCount).toEqual(500);70// component.collectionSize = 100071// component.ngOnChanges(null);72// expect(component.recordCount).toEqual(1000);73// });74// it('should calculate minRecord to be 0 when inputs are undefined or null', () => {75// expect(component.minRecord).toBe(0);76// component.page = null;77// component.pageSize = 50;78// component.collectionSize = 500;79// component.ngOnChanges(null);80// expect(component.minRecord).toBe(0);81// component.page = 1;82// component.pageSize = null;83// component.ngOnChanges(null);84// expect(component.minRecord).toBe(0);85// component.pageSize = 50;86// component.collectionSize = null;87// component.ngOnChanges(null);88// expect(component.minRecord).toBe(0);89// component.collectionSize = -1;90// component.ngOnChanges(null);91// expect(component.minRecord).toBe(0);92// })93// it('should calculate maxRecord to be 0 when inputs are undefined or null', () => {94// expect(component.maxRecord).toBe(0);95// component.page = null;96// component.pageSize = 50;97// component.collectionSize = 500;98// component.ngOnChanges(null);99// expect(component.maxRecord).toBe(0);100// component.page = 1;101// component.pageSize = null;102// component.ngOnChanges(null);103// expect(component.maxRecord).toBe(0);104// component.pageSize = 50;105// component.collectionSize = null;106// component.ngOnChanges(null);107// expect(component.maxRecord).toBe(0);108// component.collectionSize = -1;109// component.ngOnChanges(null);110// expect(component.maxRecord).toBe(0);111// })112// it('should calculate recordCount to be 0 when inputs are undefined or null', () => {113// expect(component.recordCount).toBe(0);114// component.page = null;115// component.pageSize = 50;116// component.collectionSize = 500;117// component.ngOnChanges(null);118// expect(component.recordCount).toBe(0);119// component.page = 1;120// component.pageSize = null;121// component.ngOnChanges(null);122// expect(component.recordCount).toBe(0);123// component.pageSize = 50;124// component.collectionSize = null;125// component.ngOnChanges(null);126// expect(component.recordCount).toBe(0);127// component.collectionSize = -1;128// component.ngOnChanges(null);129// expect(component.recordCount).toBe(0);130// })131// });132// describe('PaginationDisplayComponent Display Logic', () => {133// let component: PaginationDisplayComponent;134// let fixture: ComponentFixture<PaginationDisplayComponent>;135// beforeEach(() => {136// TestBed.configureTestingModule({137// declarations: [ PaginationDisplayComponent ]138// });139// fixture = TestBed.createComponent(PaginationDisplayComponent);140// component = fixture.componentInstance;141// });142// it('should render correct values', () => {143// let p : HTMLElement = fixture.debugElement.query(By.css('p')).nativeElement;144// component.page = 1145// component.pageSize = 50;146// component.collectionSize = 500;147// component.ngOnChanges(null);148// fixture.detectChanges();149// expect(p.textContent).toBe('Showing 1-50 of 500 domains');150// });151// });...
stepper.component.spec.ts
Source:stepper.component.spec.ts
...31 expect(component).toBeTruthy();32 });33 it('should call ngOnChanges lifecycle hook for time selection', () => {34 component.componentName = 'TimeSelectionComponent';35 component.ngOnChanges();36 fixture.detectChanges();37 expect(component.classes.step3.p[0]).toBe('active'); 38 39 });40 41 it('should call ngOnChanges lifecycle hook for demographic', () => {42 component.componentName = 'DemographicComponent';43 component.ngOnChanges();44 fixture.detectChanges();45 expect(component.classes.step1.p[0]).toBe('active');46 });47 it('should call ngOnChanges lifecycle hook for File Upload', () => {48 component.componentName = 'FileUploadComponent';49 component.ngOnChanges();50 fixture.detectChanges();51 expect(component.classes.step2.p[0]).toBe('active');52 });53 it('should call ngOnChanges lifecycle hook for AcknowledgementComponent', () => {54 component.componentName = 'AcknowledgementComponent';55 component.ngOnChanges();56 fixture.detectChanges();57 expect(component.classes.step4.p[0]).toBe('complete');58 });...
Using AI Code Generation
1import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';2import { MyComponent } from './my.component';3describe('MyComponent', () => {4 beforeEach(() => MockBuilder(MyComponent));5 it('should work', () => {6 const fixture = MockRender(MyComponent);7 const component = ngMocks.findInstance(MyComponent);8 expect(component).toBeDefined();9 expect(component.ngOnChanges).toHaveBeenCalled();10 expect(fixture.nativeElement).toHaveText('my-component');11 });12});13import { Component, Input, OnChanges } from '@angular/core';14@Component({15})16export class MyComponent implements OnChanges {17 @Input() public id: number;18 public ngOnChanges(): void {19 }20}21import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';22import { MyComponent } from './my.component';23describe('MyComponent', () => {24 beforeEach(() => MockBuilder(MyComponent));25 it('should work', () => {26 const fixture = MockRender(MyComponent);27 const component = ngMocks.findInstance(MyComponent);28 expect(component).toBeDefined();29 expect(component.ngOnChanges).toHaveBeenCalled();30 expect(fixture.nativeElement).toHaveText('my-component');31 });32});33import { Component, Input, OnChanges } from '@angular/core';34@Component({35})36export class MyComponent implements OnChanges {37 @Input() public id: number;38 public ngOnChanges(): void {39 }40}41import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';42import { MyComponent } from './my.component';43describe('MyComponent', () => {44 beforeEach(() => MockBuilder(MyComponent));45 it('should work', () => {46 const fixture = MockRender(MyComponent);47 const component = ngMocks.findInstance(MyComponent);48 expect(component).toBeDefined();49 expect(component.ng
Using AI Code Generation
1import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';2import { MyComponent } from './my.component';3describe('MyComponent', () => {4 beforeEach(() => MockBuilder(MyComponent));5 it('should work', () => {6 const fixture = MockRender(MyComponent);7 const component = ngMocks.findInstance(MyComponent);8 expect(component).toBeDefined();9 expect(component.ngOnChanges).toHaveBeenCalled();10 expect(fixture.nativeElement).toHaveText('my-component');11 });12});13import { Component, Input, OnChanges } from '@angular/core';14@Component({15})16export class MyComponent implements OnChanges {17 @Input() public id: number;18 public ngOnChanges(): void {19 }20}21import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';22import { MyComponent } from './my.component';23describe('MyComponent', () => {24 beforeEach(() => MockBuilder(MyComponent));25 it('should work', () => {26 const fixture = MockRender(MyComponent);27 const component = ngMocks.findInstance(MyComponent);28 expect(component).toBeDefined();29 expect(component.ngOnChanges).toHaveBeenCalled();30 expect(fixture.nativeElement).toHaveText('my-component');31 });32});33import { Component, Input, OnChanges } from '@angular/core';34@Component({35})36export class MyComponent implements OnChanges {37 @Input() public id: number;38 public ngOnChanges(): void {39 }40}41import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';42import { MyComponent } from './my.component';43describe('MyComponent', () => {44 beforeEach(() => MockBuilder(MyComponent));45 it('should work', () => {46 const fixture = MockRender(MyComponent);47 const component = ngMocks.findInstance(MyComponent);48 expect(component).toBeDefined();49 expect(component.ng
Using AI Code Generation
1import { Component, Input, SimpleChanges } from '@angular/core';2import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';3import { ChildComponent } from './child.component';4@Component({5})6export class ParentComponent {7 @Input() public name = 'World';8 public ngOnChanges(changes: SimpleChanges): void {9 console.log('ngOnChanges', changes);10 }11}12describe('ParentComponent', () => {13 beforeEach(() => MockBuilder(ParentComponent).mock(ChildComponent));14 it('renders the name', () => {15 const fixture = MockRender(ParentComponent);16 expect(ngMocks.formatText(fixture)).toEqual('Hello World');17 expect(ngMocks.find(ChildComponent).name).toEqual('World');18 });19});20import { Component, Input } from '@angular/core';21@Component({22 <h1>Hello {{ name }}!</h1>23})24export class ChildComponent {25 @Input() public name = 'World';26}27import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';28import { ChildComponent } from './child.component';29import { ParentComponent } from './parent.component';30describe('ChildComponent', () => {31 beforeEach(() => MockBuilder(ChildComponent));32 it('renders the name', () => {33 const fixture = MockRender(ChildComponent, {34 });35 expect(ngMocks.formatText(fixture)).toEqual('Hello Test!');36 expect(ngMocks.find(ChildComponent).name).toEqual('Test');37 });38 it('renders the name from parent', () => {39 const fixture = MockRender(ParentComponent);40 expect(ngMocks.formatText(fixture)).toEqual('Hello World');41 expect(ngMocks.find(ChildComponent).name).toEqual('World');42 });43});
Using AI Code Generation
1import { Component, Input, OnChanges, SimpleChanges } from '@angular/core';2import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';3import { expect } from 'chai';4@Component({5})6class TestComponent implements OnChanges {7 @Input() public value: string;8 public ngOnChanges(changes: SimpleChanges) {9 if (changes.value) {10 console.log(changes.value.currentValue);11 }12 }13}14describe('TestComponent', () => {15 beforeEach(() => MockBuilder(TestComponent));16 it('should work', () => {17 const fixture = MockRender(TestComponent, { value: 'test' });18 ngMocks.input(fixture.debugElement, 'value', 'test2');19 });20});21import { Component, Input, OnChanges, SimpleChanges } from '@angular/core';22import { MockBuilder, MockRender } from 'ng-mocks';23import { TestBed } from '@angular/core/testing';24import { expect } from 'chai';25@Component({26})27class TestComponent implements OnChanges {28 @Input() public value: string;29 public ngOnChanges(changes: SimpleChanges) {30 if (changes.value) {31 console.log(changes.value.currentValue);32 }33 }34}35describe('TestComponent', () => {36 beforeEach(() => MockBuilder(TestComponent));37 it('should work', () => {38 const fixture = MockRender(TestComponent, { value: 'test' });39 const testComponent = fixture.debugElement.componentInstance;40 spyOn(testComponent, 'ngOnChanges');41 testCompnt.value = 'test2';42 expet(testComponent.ngOnChanges).tHaveBeeCalled();43 });44});45 ✓ renders the name (6ms)46 ✓ renders the name from parent (1ms)47 ✓ renders the name (1ms)
Using AI Code Generation
1import { Component, Input, OnChanges, SimpleChanges } from '@angular/core';2import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';3@Component({4 template: `{{ value }}`,5})6export class TestComponent implements OnChanges {7 @Input()8 public value: string;9 public ngOnChanges(changes: SimpleChanges): void {10 console.log('ngOnChanges', changes);11 }12}13describe('TestComponent', () => {14 beforeEach(() => MockBuilder(TestComponent));15 it('works', () => {16 const fixture = MockRender(TestComponent, { value: 'test' });17 const component = ngMocks.findInstance(TestComponent);18 expect(fixture.nativeElement.innerHTML).toEqual('test');19 expect(component.value).toEqual('test');20 });21});22import { TestComponent } from './test';23describe('TestComponent', () => {24 beforeEach(() => {25 spyOn(TestComponent.prototype, 'ngOnChanges');26 });27 it('works', () => {28 const fixture = MockRender(TestComponent, { value: 'test' });29 const component = ngMocks.findInstance(TestComponent);30 expect(fixture.nativeElement.innerHTML).toEqual('test');31 expect(component.value).toEqual('test');32 expect(TestComponent.prototype.ngOnChanges).toHaveBeenCalled();33 });34});
Using AI Code Generation
1import { Component, Input, SimpleChanges } from '@angular/core';2import { MockComponent } from 'ng-mocks';3@Component({4})5export class TestComponent {6 @Input() name: string;7 ngOnChanges(changes: SimpleChanges): void {8 console.log(changes);9 }10}11const mock = MockComponent(TestComponent) as any;12mock.name = 'test';13mock.ngOnChanges({ name: { currentValue: 'test' } });
Using AI Code Generation
1describe('AppComponent', () => {2 beforeEach(async(() => {3 TestBed.configureTestingModule({4 }).compileComponents();5 }));6 it('should create the app', () => {7 const fixture = TestBed.createComponent(AppComponent);8 const app = fixture.debugElement.componentInstance;9 expect(app).toBeTruthy();10 });11 it('should render title in a h1 tag', () => {12 const fixture = TestBed.createComponent(AppComponent);13 fixture.detectChanges();14 const compiled = fixture.debugElement.nativeElement;15 expect(compiled.querySelector('h1').textContent).toContain('Welcome to my-app!');16 });17 it('should call ngOnChanges on input change', () => {18 const fixture = TestBed.createComponent(AppComponent);19 const app = fixture.debugElement.componentInstance;20 const spy = spyOn(app, 'ngOnChanges');21 fixture.detectChanges();22 expect(spy).toHaveBeenCalled();23 });24});25import { Component, Input, OnChanges, SimpleChanges } from '@angular/core';26@Component({27})28export class AppComponent implements OnChanges {29 title = 'my-app';30 @Input() myInput: string;31 ngOnChanges(changes: SimpleChanges): void {32 console.log('ngOnChanges called');33 }34}35 Welcome to {{title}}!36/* You can add global styles to this file, and also import other style files */37h1 {38 font-family: Lato;39}40body {41 margin: 0;42}43.topnav {44 overflow: hidden;45 background-color: #333;46}47.topnav a {48 float: left;49 display: block;50 color: #f2f2f2;51 text-align: center;52 padding: 14px 16px;53 text-decoration: none;54 font-size: 17px;55}56.topnav a:hover {57 background-color: #ddd;58 color: black;59}60.topnav a.active {
Using AI Code Generation
1import { ngMocks } from 'ng-mocks';2import { MyComponent } from './my-component';3describe('MyComponent', () => {4 it('should work', () => {5 const fixture = ngMocks.faster(MyComponent);6 const component = fixture.componentInstance;7 });8});
Using AI Code Generation
1import { ngMocks } from 'ng-mocks';2import { MyComponent } from './my-component';3describe('MyComponent', () => {4 it('should work', () => {5 const fixture = ngMocks.faster(MyComponent);6 const component = fixture.componentInstance;7 });8});
Using AI Code Generation
1import { NgOnChangesFeature } from 'ng-mocks';2import { Input } from '@angular/core';3@Component({4})5export class MyComponent {6 @Input()7 public myInput: string = '';8}9import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';10describe('MyComponent', () => {11 beforeEach(() => MockBuilder(MyComponent));12 it('should work', () => {13 const fixture = MockRender(MyComponent);14 const component = ngMocks.findInstance(MyComponent);15 expect(component.myInput).toEqual('');16 fixture.point.componentInstance.myInput = 'Hello World!';17 fixture.detectChanges();18 expect(component.myInput).toEqual('Hello World!');19 });20});21import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';22describe('MyComponent', () => {23 beforeEach(() => MockBuilder(MyComponent));24 it('should work', () => {25 const fixture = MockRender(MyComponent);26 const component = ngMocks.findInstance(MyComponent);27 expect(component.myInput).toEqual('');
Using AI Code Generation
1import { SimpleChange } from '@angular/core';2import { NgOnChangesFeature } from 'ng-mocks';3impory { SimpleChange } from '@Ingular/pore';4import { NgOnChangesFeature } from 'ng-mocks';5import { SimpleChange } from '@angular/core';6import { NgOnChangesFeature } from 'ng-mocks';7import { SimpleChange } from '@angular/core';8import { NgOnChangesFeature } from 'ng-mocks';9import { SimpleChange } from '@angular/core';10import { NgOnChangesFeature } from 'ng-mocks';11import { SimpleChange } from '@angular/core';12import { NgOnChangesFeature } from 'ng-mocks';13import { SimpleChange } from '@angular/core';14import { NgOnChangesFeature } from 'ng-mocks';15import { SimpleChange } from '@angular/core';16import { NgOnChangesFeature } from 'ng-mocks';17import { SimpleChange } from '@angular/core';18import { NgOnChangesFeature } from 'ng-mocks';19import { SimpleChange } from '@angular/core';20import { NgOnChangesFeature } from 'ng-mocks';21import { SimpleChange } from '@angular/core';22import { NgOnChangesFeature } from 'ng-mocks';23import { SimpleChange } from '@angular/core';24import { NgOnChangesFeature } from 'ng-mocks';25import { SimpleChange } from '@angular/core';26import { NgOnChangesFeature } from 'ng-mocks';27import { SimpleChange } from '@angular/core';28import { NgOnChangesFeature } from 'ng-mocks';29import { SimpleChange } from '@angular/corut = 'Hello World!';30 fixture.detectChanges();31 expect(component.myInput).toEqual('Hello World!');32 });33});34import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';35describe('MyComponent', () => {36 beforeEach(() => MockBuilder(MyComponent));37 it('should work', () => {38 const fixture = MockRender(MyComponent);39 const component = ngMocks.findInstance(MyComponent);40 expect(component.myInput).toEqual('');41 fixture.point.componentInstance.myInput = 'Hello World!';42 fixture.detectChanges();43 expect(component.myInput).toEqual('Hello World!');44 });45});46import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';47describe('MyComponent', () => {48 beforeEach(() => MockBuilder(MyComponent));49 it('should work', () => {50 const fixture = MockRender(MyComponent);
Using AI Code Generation
1import { SimpleChange } from '@angular/core';2import { NgOnChangesFeature } from 'ng-mocks';3import { SimpleChange } from '@angular/core';4import { NgOnChangesFeature } from 'ng-mocks';5import { SimpleChange } from '@angular/core';6import { NgOnChangesFeature } from 'ng-mocks';7import { SimpleChange } from '@angular/core';8import { NgOnChangesFeature } from 'ng-mocks';9import { SimpleChange } from '@angular/core';10import { NgOnChangesFeature } from 'ng-mocks';11import { SimpleChange } from '@angular/core';12import { NgOnChangesFeature } from 'ng-mocks';13import { SimpleChange } from '@angular/core';14import { NgOnChangesFeature } from 'ng-mocks';15import { SimpleChange } from '@angular/core';16import { NgOnChangesFeature } from 'ng-mocks';17import { SimpleChange } from '@angular/core';18import { NgOnChangesFeature } from 'ng-mocks';19import { SimpleChange } from '@angular/core';20import { NgOnChangesFeature } from 'ng-mocks';21import { SimpleChange } from '@angular/core';22import { NgOnChangesFeature } from 'ng-mocks';23import { SimpleChange } from '@angular/core';24import { NgOnChangesFeature } from 'ng-mocks';25import { SimpleChange } from '@angular/core';26import { NgOnChangesFeature } from 'ng-mocks';27import { SimpleChange } from '@angular/core';28import { NgOnChangesFeature } from 'ng-mocks';29import { SimpleChange } from '@angular/core
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.
LambdaTest Learning Hubs:
- JUnit Tutorial
- TestNG Tutorial
- Webdriver Tutorial
- WebDriverIO Tutorial
- Protractor Tutorial
- Selenium 4 Tutorial
- Jenkins Tutorial
- NUnit Tutorial
- Jest Tutorial
- Playwright Tutorial
- Cypress Tutorial
- PyTest Tutorial
YouTube
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Run ng-mocks automation tests on LambdaTest cloud grid
Perform automation testing on 3000+ real desktop and mobile devices online.
Try LambdaTest Now !!
Get 100 minutes of automation test minutes FREE!!
Was this article helpful?
