Best JavaScript code snippet using ng-mocks
test.spec.ts
Source:test.spec.ts
1import { CommonModule } from '@angular/common';2import {3 Component,4 ContentChild,5 EventEmitter,6 Input,7 NgModule,8 Output,9 TemplateRef,10} from '@angular/core';11import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';12@Component({13 selector: 'app-child',14 template: 'child',15})16class DependencyComponent {17 @ContentChild('something', {} as any)18 public injectedSomething: TemplateRef<void> | undefined;19 @Input()20 public someInput = '';21 @Output()22 public someOutput = new EventEmitter();23}24@Component({25 selector: 'tested',26 template: `27 <app-child28 [someInput]="value"29 (someOutput)="trigger($event)"30 ></app-child>31 `,32})33class MyComponent {34 public value = '';35 public trigger = (obj: any) => obj;36}37@NgModule({38 imports: [CommonModule],39 declarations: [MyComponent, DependencyComponent],40})41class ItsModule {}42describe('MockComponent', () => {43 beforeEach(() => {44 return MockBuilder(MyComponent, ItsModule);45 });46 it('sends the correct value to the child input', () => {47 const fixture = MockRender(MyComponent);48 const component = fixture.point.componentInstance;49 // The same as50 // fixture.debugElement.query(51 // By.css('app-child')52 // ).componentInstance53 // but properly typed.54 const mockComponent =55 ngMocks.find<DependencyComponent>(56 'app-child',57 ).componentInstance;58 // Let's pretend that DependencyComponent has 'someInput' as59 // an input. MyComponent sets its value via60 // `[someInput]="value"`. The input's value will be passed into61 // the mock component so we can assert on it.62 component.value = 'foo';63 fixture.detectChanges();64 // Thanks to ng-mocks, this is type safe.65 expect(mockComponent.someInput).toEqual('foo');66 });67 it('does something on an emit of the child component', () => {68 const fixture = MockRender(MyComponent);69 const component = fixture.point.componentInstance;70 // The same as71 // fixture.debugElement.query(72 // By.directive(DependencyComponent)73 // ).componentInstance74 // but properly typed.75 const mockComponent = ngMocks.findInstance(DependencyComponent);76 // Again, let's pretend DependencyComponent has an output77 // called 'someOutput'. MyComponent listens on the output via78 // `(someOutput)="trigger($event)"`.79 // Let's install a spy and trigger the output.80 ngMocks.stubMember(81 component,82 'trigger',83 typeof jest === 'undefined' ? jasmine.createSpy() : jest.fn(),84 );85 mockComponent.someOutput.emit({86 payload: 'foo',87 });88 // Assert on the effect.89 expect(component.trigger).toHaveBeenCalledWith({90 payload: 'foo',91 });92 });93 it('renders something inside of the child component', () => {94 const localFixture = MockRender<DependencyComponent>(`95 <app-child>96 <p>inside content</p>97 </app-child>98 `);99 // We can access html directly asserting on some side effect.100 const mockNgContent = localFixture.point.nativeElement.innerHTML;101 expect(mockNgContent).toContain('<p>inside content</p>');102 });103 it('renders ContentChild of the child component', () => {104 const fixture = MockRender<DependencyComponent>(`105 <app-child>106 <ng-template #something>107 <p>inside template</p>108 </ng-template>109 <p>inside content</p>110 </app-child>111 `);112 // Injected ng-content rendered everything except templates.113 const mockNgContent = fixture.point.nativeElement.innerHTML;114 expect(mockNgContent).toContain('<p>inside content</p>');115 expect(mockNgContent).not.toContain('<p>inside template</p>');116 // Let's render the template. First, we need to assert that117 // componentInstance is a MockedComponent<T> to access118 // its `__render` method. `isMockOf` function helps here.119 const mockComponent = fixture.point.componentInstance;120 ngMocks.render(121 mockComponent,122 ngMocks.findTemplateRef('something'),123 );124 // The rendered template is wrapped by <div data-key="something">.125 // We can use this selector to assert exactly its content.126 const mockNgTemplate = ngMocks.find(DependencyComponent)127 .nativeElement.innerHTML;128 expect(mockNgTemplate).toContain('<p>inside template</p>');129 });...
Using AI Code Generation
1import { mockNgTemplate } from 'ng-mocks';2describe('TestComponent', () => {3 let component: TestComponent;4 let fixture: ComponentFixture<TestComponent>;5 beforeEach(async(() => {6 TestBed.configureTestingModule({7 imports: [8 mockNgTemplate(TestComponent, 'test', '<div>test</div>'),9 }).compileComponents();10 }));11 beforeEach(() => {12 fixture = TestBed.createComponent(TestComponent);13 component = fixture.componentInstance;14 fixture.detectChanges();15 });16 it('should create', () => {17 expect(component).toBeTruthy();18 });19});20import { Component, OnInit, TemplateRef, ViewChild } from '@angular/core';21@Component({22})23export class TestComponent implements OnInit {24 @ViewChild('test', { static: true }) test: TemplateRef<any>;25 constructor() {}26 ngOnInit(): void {}27}28div {29 background-color: red;30}31import { async, ComponentFixture, TestBed } from '@angular/core/testing';32import { TestComponent } from './test.component';33describe('TestComponent', () => {34 let component: TestComponent;35 let fixture: ComponentFixture<TestComponent>;36 beforeEach(async(() => {37 TestBed.configureTestingModule({38 }).compileComponents();39 }));40 beforeEach(() => {41 fixture = TestBed.createComponent(TestComponent);42 component = fixture.componentInstance;43 fixture.detectChanges();44 });45 it('should create', () => {46 expect(component).toBeTruthy();47 });48});49Can't bind to 'ngTemplateOutlet' since it isn't a known property of 'ng-container'. ("<div>
Using AI Code Generation
1import { mockNgTemplate } from 'ng-mocks';2describe('AppComponent', () => {3 beforeEach(async(() => {4 TestBed.configureTestingModule({5 mockNgTemplate('app-test', '<div>Mocked</div>'),6 }).compileComponents();7 }));8 it('should create the app', () => {9 const fixture = TestBed.createComponent(AppComponent);10 const app = fixture.debugElement.componentInstance;11 expect(app).toBeTruthy();12 });13});14import { Component } from '@angular/core';15@Component({16})17export class AppComponent {18 title = 'app';19}20import { mockNgTemplate } from 'ng-mocks';21describe('AppComponent', () => {22 beforeEach(async(() => {23 TestBed.configureTestingModule({24 mockNgTemplate('app-test', '<div>Mocked</div>'),25 }).compileComponents();26 }));27 it('should create the app', () => {28 const fixture = TestBed.createComponent(AppComponent);29 const app = fixture.debugElement.componentInstance;30 expect(app).toBeTruthy();31 });32});33import { Component, Input } from '@angular/core';34@Component({35 <p>{{ title }}</p>36})37export class AppTestComponent {38 @Input() title: string;39}40import { mockNgTemplate } from 'ng-mocks';41describe('AppComponent', () => {42 beforeEach(async(() => {43 TestBed.configureTestingModule({44 mockNgTemplate('app-test', '<div>Mocked</div>'),45 }).compileComponents();46 }));47 it('should create the
Using AI Code Generation
1import { mockNgTemplate } from 'ng-mocks';2import { Component, Input } from '@angular/core';3@Component({4 template: mockNgTemplate('app-test'),5})6export class TestComponent {7 @Input() name: string;8}9import { ComponentFixture, TestBed } from '@angular/core/testing';10import { TestComponent } from './test';11describe('TestComponent', () => {12 let component: TestComponent;13 let fixture: ComponentFixture<TestComponent>;14 beforeEach(async () => {15 await TestBed.configureTestingModule({16 }).compileComponents();17 });18 beforeEach(() => {19 fixture = TestBed.createComponent(TestComponent);20 component = fixture.componentInstance;21 fixture.detectChanges();22 });23 it('should create', () => {24 expect(component).toBeTruthy();25 });26});27mockNgTemplate('input', '<input [ngModel]="name">');28@Component({29 template: mockNgTemplate('app-test', '<input [ngModel]="name">'),30})31export class TestComponent {32 @Input() name: string;33}34fixture = TestBed.createComponent(TestComponent);
Using AI Code Generation
1import { mockNgTemplate } from 'ng-mocks';2import { MyComponent } from './my.component';3import { MyDirective } from './my.directive';4describe('MyComponent', () => {5 it('should render the component', () => {6 const component = mockNgTemplate(MyComponent, MyDirective);7 expect(component).toBeTruthy();8 });9});10import { MockBuilder } from 'ng-mocks';11import { MyComponent } from './my.component';12import { MyDirective } from './my.directive';13describe('MyComponent', () => {14 beforeEach(async () => {15 await MockBuilder(MyComponent, MyDirective);16 });17 it('should render the component', () => {18 const component = MockRender(MyComponent);19 expect(component).toBeTruthy();20 });21});
Using AI Code Generation
1import { mockNgTemplate } from 'ng-mocks';2import { Component } from '@angular/core';3@Component({4 template: mockNgTemplate('app-test', '<div>Test</div>'),5})6export class TestComponent {}7import { TestBed } from '@angular/core/testing';8import { TestComponent } from './test.component';9describe('TestComponent', () => {10 beforeEach(async () => {11 await TestBed.configureTestingModule({12 }).compileComponents();13 });14 it('should create', () => {15 const fixture = TestBed.createComponent(TestComponent);16 const component = fixture.componentInstance;17 expect(component).toBeTruthy();18 });19});
Using AI Code Generation
1import { mockNgTemplate } from 'ng-mocks';2import { Component } from '@angular/core';3@Component({4 template: mockNgTemplate('test-component')5})6export class TestComponent {}7import { TestBed } from '@angular/core/testing';8import { TestComponent } from './test';9describe('TestComponent', () => {10 beforeEach(async () => {11 await TestBed.configureTestingModule({12 }).compileComponents();13 });14 it('should create', () => {15 const fixture = TestBed.createComponent(TestComponent);16 fixture.detectChanges();17 expect(fixture).toBeTruthy();18 });19});20Error: StaticInjectorError(AppModule)[TestComponent -> TemplateRef]: 21 StaticInjectorError(Platform: core)[TestComponent -> TemplateRef]: 22import { TestBed } from '@angular/core/testing';23import { TestComponent } from './test';24import { TemplateRef } from '@angular/core';25describe('TestComponent', () => {26 beforeEach(async () => {27 await TestBed.configureTestingModule({28 {29 useValue: {}30 }31 }).compileComponents();32 });33 it('should create', () => {34 const fixture = TestBed.createComponent(TestComponent);35 fixture.detectChanges();36 expect(fixture).toBeTruthy();37 });38});
Using AI Code Generation
1import { mockNgTemplate } from 'ng-mocks';2describe('mockNgTemplate', () => {3 beforeEach(() => {4 TestBed.configureTestingModule({5 });6 });7 it('creates a mock component', () => {8 const fixture = TestBed.createComponent(MockComponent);9 const component = fixture.componentInstance;10 const template = mockNgTemplate(component);11 expect(template).toBeDefined();12 expect(template).not.toBeNull();13 });14});15import { createComponentFactory, Spectator } from '@ngneat/spectator';16describe('Mocking a component using @ngneat/spectator', () => {17 let spectator: Spectator<MockComponent>;18 const createComponent = createComponentFactory(MockComponent);19 beforeEach(() => {20 spectator = createComponent();21 });22 it('creates a mock component', () => {23 const component = spectator.component;24 expect(component).toBeDefined();25 expect(component).not.toBeNull();26 });27});28import { createComponentFactory, Spectator } from '@ngneat/spectator';29describe('Mocking a component using @ngneat/spectator', () => {30 let spectator: Spectator<MockComponent>;31 const createComponent = createComponentFactory(MockComponent);32 beforeEach(() => {33 spectator = createComponent();34 });35 it('creates a mock component', () => {36 const component = spectator.component;
Using AI Code Generation
1import {mockNgTemplate} from 'ng-mocks';2import {Component} from '@angular/core';3@Component({4 template: mockNgTemplate('my-component', '<div>My Component</div>')5})6export class MyComponent {}7import {mockNgTemplate} from 'ng-mocks';8import {Component} from '@angular/core';9@Component({10 template: mockNgTemplate('my-component', '<div>My Component</div>')11})12export class MyComponent {}13import {mockNgTemplate} from 'ng-mocks';14import {Component} from '@angular/core';15@Component({16 template: mockNgTemplate('my-component', '<div>My Component</div>')17})18export class MyComponent {}19import {mockNgTemplate} from 'ng-mocks';20import {Component} from '@angular/core';21@Component({22 template: mockNgTemplate('my-component', '<div>My Component</div>')23})24export class MyComponent {}25import {mockNgTemplate} from 'ng-mocks';26import {Component} from '@angular/core';27@Component({28 template: mockNgTemplate('my-component', '<div>My Component</div>')29})30export class MyComponent {}31import {mockNgTemplate} from 'ng-mocks';32import {Component} from '@angular/core';33@Component({34 template: mockNgTemplate('my-component', '<div>My Component</div>')35})36export class MyComponent {}37import {mockNgTemplate} from 'ng-mocks';38import {Component} from '@angular/core';39@Component({40 template: mockNgTemplate('my-component', '<div>My Component</div>')41})42export class MyComponent {}
Using AI Code Generation
1import { mockNgTemplate } from 'ng-mocks';2describe('App', () => {3 beforeEach(() => {4 mockNgTemplate('app-root', '<h1>Mocked App Root</h1>');5 TestBed.configureTestingModule({6 imports: [AppModule]7 });8 });9 it('should work', () => {10 const fixture = TestBed.createComponent(AppComponent);11 fixture.detectChanges();12 const app = fixture.debugElement.componentInstance;13 expect(app).toBeTruthy();14 });15});16import { CUSTOM_ELEMENTS_SCHEMA } from '@angular/core';17import { NO_ERRORS_SCHEMA } from '@angular/core';18beforeEach(() => {19 TestBed.configureTestingModule({20 });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.
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!!