TestMu 2025 - The Largest Virtual Software Testing Conference is Back | 50,000+ Attendees

How to use viewProvider method in ng-mocks

Best JavaScript code snippet using ng-mocks

ViewProviderSpec.js

1/*****************************************************************************2 * Open MCT, Copyright (c) 2014-2018, United States Government3 * as represented by the Administrator of the National Aeronautics and Space4 * Administration. All rights reserved.5 *6 * Open MCT is licensed under the Apache License, Version 2.0 (the7 * "License"); you may not use this file except in compliance with the License.8 * You may obtain a copy of the License at9 * http://www.apache.org/licenses/LICENSE-2.0.10 *11 * Unless required by applicable law or agreed to in writing, software12 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT13 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the14 * License for the specific language governing permissions and limitations15 * under the License.16 *17 * Open MCT includes source code licensed under additional open source18 * licenses. See the Open Source Licenses file (LICENSES.md) included with19 * this source code distribution or the Licensing information page available20 * at runtime from the About dialog for additional information.21 *****************************************************************************/22/**23 * ViewProviderSpec. Created by vwoeltje on 11/6/14.24 */25define(26    ["../../src/views/ViewProvider"],27    function (ViewProvider) {28        describe("The view provider", function () {29            var viewA = {30                    key: "a"31                },32                viewB = {33                    key: "b",34                    needs: ["someCapability"]35                },36                viewC = {37                    key: "c",38                    needs: ["someCapability"],39                    delegation: true40                },41                capabilities = {},42                delegates = {},43                delegation,44                mockDomainObject = {},45                mockLog,46                provider;47            beforeEach(function () {48                // Simulate the expected API49                mockDomainObject.hasCapability = function (c) {50                    return capabilities[c] !== undefined;51                };52                mockDomainObject.getCapability = function (c) {53                    return capabilities[c];54                };55                mockDomainObject.useCapability = function (c, v) {56                    return capabilities[c] && capabilities[c].invoke(v);57                };58                mockLog = jasmine.createSpyObj("$log", ["warn", "info", "debug"]);59                capabilities = {};60                delegates = {};61                delegation = {62                    doesDelegateCapability: function (c) {63                        return delegates[c] !== undefined;64                    }65                };66                provider = new ViewProvider([viewA, viewB, viewC], mockLog);67            });68            it("reports views provided as extensions", function () {69                capabilities.someCapability = true;70                expect(provider.getViews(mockDomainObject))71                    .toEqual([viewA, viewB, viewC]);72            });73            it("filters views by needed capabilities", function () {74                //capabilities.someCapability = true;75                expect(provider.getViews(mockDomainObject))76                    .toEqual([viewA]);77            });78            it("allows delegation of needed capabilities when specified", function () {79                //capabilities.someCapability = true;80                capabilities.delegation = delegation;81                delegates.someCapability = true;82                expect(provider.getViews(mockDomainObject))83                    .toEqual([viewA, viewC]);84            });85            it("warns if keys are omitted from views", function () {86                // Verify that initial construction issued no warning87                expect(mockLog.warn).not.toHaveBeenCalled();88                // Recreate with no keys; that view should be filtered out89                expect(90                    new ViewProvider(91                        [viewA, { some: "bad view" }],92                        mockLog93                    ).getViews(mockDomainObject)94                ).toEqual([viewA]);95                // We should have also received a warning, to support debugging96                expect(mockLog.warn).toHaveBeenCalledWith(jasmine.any(String));97            });98            it("restricts typed views to matching types", function () {99                var testType = "testType",100                    testView = { key: "x", type: testType },101                    viewProvider = new ViewProvider([testView], mockLog);102                // Include a "type" capability103                capabilities.type = jasmine.createSpyObj(104                    "type",105                    ["instanceOf", "invoke", "getDefinition"]106                );107                capabilities.type.invoke.and.returnValue(capabilities.type);108                // Should be included when types match109                capabilities.type.instanceOf.and.returnValue(true);110                expect(viewProvider.getViews(mockDomainObject))111                    .toEqual([testView]);112                expect(capabilities.type.instanceOf)113                    .toHaveBeenCalledWith(testType);114                // ...but not when they don't115                capabilities.type.instanceOf.and.returnValue(false);116                expect(viewProvider.getViews(mockDomainObject))117                    .toEqual([]);118            });119            it("enforces view restrictions from types", function () {120                var testView = { key: "x" },121                    viewProvider = new ViewProvider([testView], mockLog);122                // Include a "type" capability123                capabilities.type = jasmine.createSpyObj(124                    "type",125                    ["instanceOf", "invoke", "getDefinition"]126                );127                capabilities.type.invoke.and.returnValue(capabilities.type);128                // Should be included when view keys match129                capabilities.type.getDefinition130                    .and.returnValue({ views: [testView.key]});131                expect(viewProvider.getViews(mockDomainObject))132                    .toEqual([testView]);133                // ...but not when they don't134                capabilities.type.getDefinition135                    .and.returnValue({ views: ["somethingElse"]});136                expect(viewProvider.getViews(mockDomainObject))137                    .toEqual([]);138            });139        });140    }...

main.js

Source: main.js

1import headerTemplate from './components/header/template.js'2import productsTemplate from './components/products/template.js'3import modalTemplate from './components/modal/template.js'4function GlobalInformation() {5  let showShopping = ko.observable('isHidden')6  let cart = ko.observableArray([])7  return {8    showShopping,9    cart,10  }11}12const viewProvider = new GlobalInformation()13function Products() {14  this.products = ko.observableArray([15    {16      id: 1,17      name: 'Suco integral',18      description: 'Aurora 1,5L',19      price: 14.22,20      image: './assets/products/suco_uva.png',21    },22    {23      id: 2,24      name: 'Achocolatado',25      description: 'Toddy 400 g',26      price: 4.5,27      image: './assets/products/achocolatado.png',28    },29    {30      id: 3,31      name: 'Leite de Coco',32      description: 'Menina 200 ml',33      price: 3.5,34      image: './assets/products/leite_coco.png',35    },36    {37      id: 4,38      name: 'Amaciante',39      description: 'Monbjoux 2 l',40      price: 22.4,41      image: './assets/products/amaciante.png',42    },43    {44      id: 5,45      name: 'Agua sanitaria',46      description: 'Qboa 200ml',47      price: 11.5,48      image: './assets/products/q-boa-mini.png',49    },50    {51      id: 6,52      name: 'Agua sanitaria big',53      description: 'Qboa 1l',54      price: 32.1,55      image: './assets/products/qboa.png',56    },57  ])58}59function Cart() {60  this.cart = viewProvider.cart()61  this.handleAddProductInCart = (data) => {62    const filter = viewProvider.cart().filter((item) => item.id !== data.id)63    const itemInCart = viewProvider.cart().find((item) => item.id === data.id)64    if (itemInCart) {65      return viewProvider.cart([66        ...filter,67        { ...data, qty: itemInCart.qty + 1 },68      ])69    }70    return viewProvider.cart([71      ...viewProvider.cart(),72      { ...data, qty: 1, selected: true },73    ])74  }75  this.cartQty = ko.computed(() => {76    const value = viewProvider.cart().reduce(77      (acc, curren) => {78        return { qty: acc.qty + curren.qty }79      },80      { qty: 0 }81    )82    return `${value.qty} items`83  })84  this.cartTotalValue = ko.computed(() => {85    const { price } = viewProvider.cart().reduce(86      (acc, curren) => {87        return { price: acc.price + curren.price * curren.qty }88      },89      { price: 0 }90    )91    return `R$ ${price.toFixed(2)}`92  })93}94ko.components.register('header-component', {95  template: headerTemplate,96  viewModel: function (params) {97    this.user = {98      firstName: ko.observable('Angela Pires'),99      avatar: ko.observable('./assets/avatar.png'),100    }101    this.handleShowShopping = () => {102      if (params.cart().length > 0) {103        viewProvider.showShopping('isShow')104      }105    }106    this.isAvalibleCartItems = ko.computed(() => {107      return params.cart().length > 0 && 'avalible'108    })109  },110})111ko.components.register('products', {112  template: productsTemplate,113  viewModel: function (params) {114    const { products } = new Products()115    const { handleAddProductInCart, removeItemFromCart } = new Cart()116    this.handleAddProductInCart = handleAddProductInCart117    this.removeItemFromCart = removeItemFromCart118    this.products = products()119  },120})121ko.components.register('modal', {122  template: modalTemplate,123  viewModel: function () {124    this.cart = ko.computed(() => {125      return viewProvider.cart()126    })127    this.handleHideShopping = () => {128      viewProvider.showShopping('isHidden')129    }130    this.removeItemFromCart = (value, event) => {131      event.stopPropagation()132      const confirm = window.confirm(133        'Tem certeza que deseja remover este item?'134      )135      if (confirm) {136        return viewProvider.cart(137          viewProvider.cart().filter((item) => item.id !== value.id)138        )139      }140      return141    }142    this.showShopping = ko.computed(() => viewProvider.showShopping())143    this.cartTotalValue = ko.computed(() => {144      const { price } = viewProvider.cart().reduce(145        (acc, curren) => {146          return { price: acc.price + curren.price * curren.qty }147        },148        { price: 0 }149      )150      return `R$ ${price.toFixed(2)}`151    })152    this.cartQty = ko.computed(() => {153      const value = viewProvider.cart().reduce(154        (acc, curren) => {155          return { qty: acc.qty + curren.qty }156        },157        { qty: 0 }158      )159      return `${value.qty} items`160    })161  },162})...

test.spec.ts

Source: test.spec.ts

1import { Component, Injectable, Input } from '@angular/core';2import {3  MockBuilder,4  MockInstance,5  MockProvider,6  MockRender,7  ngMocks,8} from 'ng-mocks';9@Injectable()10export class ProviderService {11  public description = 'real provider';12}13@Injectable()14export class ViewProviderService {15  public description = 'real viewProvider';16}17@Component({18  providers: [ProviderService],19  selector: 'hello',20  template: `21    <h1 class="name">{{ name }}</h1>22    <div class="provider">{{ provider.description }}</div>23    <div class="viewProvider">{{ viewProvider.description }}</div>24  `,25  viewProviders: [ViewProviderService],26})27export class HelloComponent {28  @Input() public readonly name: string | null = null;29  public constructor(30    public readonly provider: ProviderService,31    public readonly viewProvider: ViewProviderService,32  ) {}33}34// @see https://github.com/help-me-mom/ng-mocks/issues/150735// Difference between MockBuilder.provide and MockBuilder.mock36// Only MockBuilder.mock replaces providers on the component / directive level.37// MockBuilder.provide simply adds a service to global scope.38describe('issue-1507', () => {39  MockInstance.scope();40  describe('default', () => {41    beforeEach(() => MockBuilder(HelloComponent));42    it('keeps providers and viewProviders as they are', () => {43      MockRender(HelloComponent, { name: 'Test1' });44      const name = ngMocks.formatText(ngMocks.find('.name'));45      expect(name).toEqual('Test1');46      const provider = ngMocks.formatText(ngMocks.find('.provider'));47      expect(provider).toEqual('real provider');48      const viewProvider = ngMocks.formatText(49        ngMocks.find('.viewProvider'),50      );51      expect(viewProvider).toEqual('real viewProvider');52    });53  });54  describe('.keep', () => {55    beforeEach(() =>56      MockBuilder(HelloComponent)57        .keep(ProviderService)58        .keep(ViewProviderService),59    );60    it('keeps providers and viewProviders as they are', () => {61      MockRender(HelloComponent, { name: 'Test2' });62      const name = ngMocks.formatText(ngMocks.find('.name'));63      expect(name).toEqual('Test2');64      const provider = ngMocks.formatText(ngMocks.find('.provider'));65      expect(provider).toEqual('real provider');66      const viewProvider = ngMocks.formatText(67        ngMocks.find('.viewProvider'),68      );69      expect(viewProvider).toEqual('real viewProvider');70    });71  });72  describe('.provide', () => {73    beforeEach(() =>74      MockBuilder(HelloComponent)75        .provide(76          MockProvider(ProviderService, {77            description: 'provided provider',78          }),79        )80        .provide(81          MockProvider(ViewProviderService, {82            description: 'provided viewProvider',83          }),84        ),85    );86    it('provides mocks on the root level', () => {87      MockRender(HelloComponent, { name: 'Test3' });88      const name = ngMocks.formatText(ngMocks.find('.name'));89      expect(name).toEqual('Test3');90      const provider = ngMocks.formatText(ngMocks.find('.provider'));91      expect(provider).toEqual('real provider');92      expect(93        ngMocks.findInstance(ProviderService).description,94      ).toEqual('provided provider');95      const viewProvider = ngMocks.formatText(96        ngMocks.find('.viewProvider'),97      );98      expect(viewProvider).toEqual('real viewProvider');99      expect(100        ngMocks.findInstance(ViewProviderService).description,101      ).toEqual('provided viewProvider');102    });103  });104  describe('.mock', () => {105    beforeEach(() =>106      MockBuilder(HelloComponent)107        .mock(ProviderService, {108          description: 'mock provider',109        })110        .mock(ViewProviderService, {111          description: 'mock viewProvider',112        }),113    );114    it('mocks services on the component level', () => {115      MockRender(HelloComponent, { name: 'Test4' });116      const name = ngMocks.formatText(ngMocks.find('.name'));117      expect(name).toEqual('Test4');118      const provider = ngMocks.formatText(ngMocks.find('.provider'));119      expect(provider).toEqual('mock provider');120      const viewProvider = ngMocks.formatText(121        ngMocks.find('.viewProvider'),122      );123      expect(viewProvider).toEqual('mock viewProvider');124    });125  });...

Using AI Code Generation

1import { viewProvider } from 'ng-mocks';2describe('TestComponent', () => {3  let component: TestComponent;4  let fixture: ComponentFixture<TestComponent>;5  beforeEach(async(() => {6    TestBed.configureTestingModule({7      providers: [viewProvider(TestService)]8    })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 { Injectable } from '@angular/core';21@Injectable()22export class TestService {23  constructor() { }24  testMethod() {25    return 'test';26  }27}28import { Component, OnInit } from '@angular/core';29import { TestService } from 'test.service';30@Component({31})32export class TestComponent implements OnInit {33  constructor(private testService: TestService) { }34  ngOnInit(): void {35    console.log(this.testService.testMethod());36  }37}38import { ComponentFixture, TestBed, async } from '@angular/core/testing';39import { TestComponent } from 'test.component';40describe('TestComponent', () => {41  let component: TestComponent;42  let fixture: ComponentFixture<TestComponent>;43  beforeEach(async(() => {44    TestBed.configureTestingModule({45    })46    .compileComponents();47  }));48  beforeEach(() => {49    fixture = TestBed.createComponent(TestComponent);50    component = fixture.componentInstance;51    fixture.detectChanges();52  });53  it('should create', () => {54    expect(component).toBeTruthy();55  });56});

Using AI Code Generation

1import { TestBed, async } from '@angular/core/testing';2import { AppComponent } from './app.component';3import { MockBuilder, MockRender } from 'ng-mocks';4import { AppModule } from './app.module';5describe('AppComponent', () => {6  beforeEach(async(() => MockBuilder(AppComponent, AppModule)));7  it('should create the app', async(() => {8    const fixture = MockRender(AppComponent);9    const app = fixture.point.componentInstance;10    expect(app).toBeTruthy();11  }));12  it(`should have as title 'app'`, async(() => {13    const fixture = MockRender(AppComponent);14    const app = fixture.point.componentInstance;15    expect(app.title).toEqual('app');16  }));17  it('should render title in a h1 tag', async(() => {18    const fixture = MockRender(AppComponent);19    fixture.detectChanges();20    const compiled = fixture.point.nativeElement;21    expect(compiled.querySelector('h1').textContent).toContain('Welcome to app!');22  }));23});24import { Component, OnInit } from '@angular/core';25import { HttpClient } from '@angular/common/http';26import { Observable } from 'rxjs/Observable';27import { map } from 'rxjs/operators';28import { of } from 'rxjs/observable/of';29@Component({30    {31      useValue: {32        get: () => of({ some: 'value' }),33      },34    },35})36export class AppComponent implements OnInit {37  title = 'app';38  data$: Observable<any>;39  constructor(private http: HttpClient) {}40  ngOnInit() {41    this.data$ = this.http.get('/some-url').pipe(map(res => res));42  }43}44import { Component, OnInit } from '@angular/core';45import { HttpClient } from '@angular/common/http';46import { Observable } from 'rxjs/Observable';47import { map } from 'rxjs/operators';48import { of } from 'rxjs/observable/of';49@Component({

Using AI Code Generation

1import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';2import { MyComponent } from './my.component';3beforeEach(() => MockBuilder(MyComponent));4it('renders', () => {5  ngMocks.viewProvider(MyComponent, {6  });7  const fixture = MockRender(MyComponent);8  expect(fixture.point.nativeElement).toHaveText('mocked');9});10In this article, we learned how to use ng-mocks to mock the view of a component. We also learned how to use ng-mocks to mock the view of a module. We also learned how to use ng-mocks to mock the view of a component that is imported into a module. We also learned how to use ng-mocks to mock the view of a component that is imported into another component. We also learned how to use ng-mocks to mock the view of a component that is imported into a module that is imported into another module. We also learned how to use ng-mocks to mock the view of a component that is imported into a module that is imported into another module that is imported into another module. We also learned how to use ng-mocks to mock the view of a component that is imported into a module that is imported into another module that is imported into another module that is imported into another module. We also learned how to use ng-mocks to mock the view of a component that is imported into a module that is imported into another module that is imported into another module that is imported into another module that is imported into another module. We also learned how to use ng-mocks to mock the view of a component that is imported into a module that is imported into another module that is imported into another module that is imported into another module that is imported into another module that is imported into another module. We also learned how to use ng-mocks to mock the view of a component that is imported into a module that is imported into another module that is imported into another module that is imported into another module

Using AI Code Generation

1ngMocks.viewProvider({2  useValue: mock(SomeService),3});4ngMocks.viewProvider(SomeService, mock(SomeService));5ngMocks.viewProvider(SomeService, {6  useValue: mock(SomeService),7});8ngMocks.viewProvider(SomeService, mock(SomeService));9ngMocks.viewProvider(SomeService, {10  useValue: mock(SomeService),11});12ngMocks.viewProvider(SomeService, mock(SomeService));13ngMocks.viewProvider(SomeService, {14  useValue: mock(SomeService),15});16ngMocks.viewProvider(SomeService, mock(SomeService));17ngMocks.viewProvider(SomeService, {18  useValue: mock(SomeService),19});20ngMocks.viewProvider(SomeService, mock(SomeService));21ngMocks.viewProvider(SomeService, {22  useValue: mock(SomeService),23});24ngMocks.viewProvider(SomeService, mock(SomeService));25ngMocks.viewProvider(SomeService, {26  useValue: mock(SomeService),27});28ngMocks.viewProvider(SomeService, mock(SomeService));29ngMocks.viewProvider(SomeService, {30  useValue: mock(SomeService),31});32ngMocks.viewProvider(SomeService, mock(SomeService));

Using AI Code Generation

1import { mockProvider } from 'ng-mocks';2import { MyService } from './my-service';3describe('Test', () => {4  it('should work', () => {5    const viewProvider = mockProvider(MyService);6    const mock = viewProvider.getMock();7    mock.spyOn('name').and.returnValue('Mocked name');8    const service = viewProvider.injector.get(MyService);9    expect(service.name()).toBe('Mocked name');10  });11});12import { Injectable } from '@angular/core';13@Injectable()14export class MyService {15  public name(): string {16    return 'My name';17  }18}

Using AI Code Generation

1import { viewProvider } from 'ng-mocks';2import { MyComponent } from './my.component';3const fixture = viewProvider(MyComponent, {4    { provide: Service1, useValue: mockService1 },5    { provide: Service2, useValue: mockService2 },6});7const component = fixture.componentInstance;8const element = fixture.nativeElement;9const debugElement = fixture.debugElement;10const html = element.innerHTML;11const text = element.textContent;12const styles = element.style;13const classList = element.classList;14const attributes = element.attributes;15const children = element.children;16const firstChild = element.firstChild;17const lastChild = element.lastChild;18const nextSibling = element.nextSibling;19const previousSibling = element.previousSibling;20const parent = element.parentElement;21const childNodes = element.childNodes;22const firstChildNode = element.firstChildNode;23const lastChildNode = element.lastChildNode;24const childElementNodes = element.childElementNodes;25const firstChildElementNode = element.firstChildElementNode;26const lastChildElementNode = element.lastChildElementNode;

Using AI Code Generation

1describe('viewProvider', () => {2  it('should render the template', () => {3    const fixture = MockRender(`4    `);5    expect(fixture.point.componentInstance).toBeDefined();6  });7});8describe('AppComponent', () => {9  it('should create the app', () => {10    const fixture = MockRender(`11    `);12    expect(fixture.point.componentInstance).toBeDefined();13  });14});15import { Component } from '@angular/core';16@Component({17})18export class AppComponent {19  title = 'angular-testing';20}21import { MockRender } from 'ng-mocks';22describe('AppComponent', () => {23  it('should create the app', () => {24    const fixture = MockRender(`25    `);26    expect(fixture.point.componentInstance).toBeDefined();27  });28});29import { Component } from '@angular/core';30@Component({31})32export class AppComponent {33  title = 'angular-testing';34}35import { MockRender } from 'ng-mocks';36describe('AppComponent', () => {37  it('should create the app', () => {38    const fixture = MockRender(`39    `);40    expect(fixture.point.componentInstance).toBeDefined();41  });42});43import { Component } from '@angular/core';44@Component({45})46export class AppComponent {47  title = 'angular-testing';48}49import { MockRender } from 'ng-mocks';50describe('AppComponent', () => {51  it('should create the app', () => {52    const fixture = MockRender(`

Blogs

Check out the latest blogs from LambdaTest on this topic:

Two-phase Model-based Testing

Most test automation tools just do test execution automation. Without test design involved in the whole test automation process, the test cases remain ad hoc and detect only simple bugs. This solution is just automation without real testing. In addition, test execution automation is very inefficient.

Your Favorite Dev Browser Has Evolved! The All New LT Browser 2.0

We launched LT Browser in 2020, and we were overwhelmed by the response as it was awarded as the #5 product of the day on the ProductHunt platform. Today, after 74,585 downloads and 7,000 total test runs with an average of 100 test runs each day, the LT Browser has continued to help developers build responsive web designs in a jiffy.

Options for Manual Test Case Development & Management

The purpose of developing test cases is to ensure the application functions as expected for the customer. Test cases provide basic application documentation for every function, feature, and integrated connection. Test case development often detects defects in the design or missing requirements early in the development process. Additionally, well-written test cases provide internal documentation for all application processing. Test case development is an important part of determining software quality and keeping defects away from customers.

How To Create Custom Menus with CSS Select

When it comes to UI components, there are two versatile methods that we can use to build it for your website: either we can use prebuilt components from a well-known library or framework, or we can develop our UI components from scratch.

The Art of Testing the Untestable

It’s strange to hear someone declare, “This can’t be tested.” In reply, I contend that everything can be tested. However, one must be pleased with the outcome of testing, which might include failure, financial loss, or personal injury. Could anything be tested when a claim is made with this understanding?

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.