TestBed.overrideComponent 这个方法用来覆盖组件定义好的 provider it("test", async(inject([MockBackend], (backend: MockBackend) =>{ const mockResponse={ data: [ { id:0, name: 'Video 0'}, { id:1, name: 'Video 1'}, { id:2, name: 'Video 2'}, { id:3, name: 'Video 3'}, ] ...
In this post, we are going to see how to use 'fakeAsync' to test async code in Angular Context. fakeAsync using Zoom.js underhook, it detects all the async operations. You can use the utilities function such as flush: Run all the pending async function in Event loop flushMicrotasks: Run...
distinctUntilChanged:检测数据源当前发出的数据流是否和上次发出的相同,如相同跳过,不相同,发出 8.async 管道 当表达式中有observable数据流的时候,表达式会报错,这时需要加async管道 components.htmltest components.ts selected$:Observable<string>ngOnInit(){this.selected$=this.service.getData()} 这样写的优点 省...
it('should have as info test service', async(() => { const fixture = TestBed.createComponent(AppComponent); const app = fixture.debugElement.componentInstance; expect(app.info).toEqual('test service'); })); 修改app.service.spec.ts import { TestBed, inject, async } from '@angular/core/...
解决:检查test中是否有async,如果有,删掉。 Zone.__load_patch('ZoneAwarePromise', function (global, Zone, api) { ^ ReferenceError: Zone is not defined 解决:将mocha-test-shim.js文件中所有require的移动到最上边,zone换成zone-node ReferenceError:Event is not defined ...
Setting up test in BeforeEach: import {async, ComponentFixture, TestBed }from"@angular/core/testing"; import { DebugElement }from"@angular/core"; let fixture: ComponentFixture<CoursesCardListComponent>,//For the Input bindingscomponent: CoursesCardListComponent,//For query the DOMel: DebugElement;...
import{resetFakeAsyncZone}from'./fake_async';import{TestBed}from'./test_bed';declarevarglobal:any;const_global=<any>(typeofwindow==='undefined'?global:window);// Reset the test providers and the fake async zone before each test.if(_global.beforeEach){_global.beforeEach(()=>{TestBed.resetT...
One thing we can test just for component wihtout template is to test whether 'dispatch' function was called on Store. import {async, ComponentFixture, TestBed}from'@angular/core/testing'; import {RegisterComponent}from'./register.component'; ...
import { CUSTOM_ELEMENTS_SCHEMA } from '@angular/core';import { ComponentFixture, TestBed } from '@angular/core/testing';import { TabsPage } from './tabs.page';describe('TabsPage', () => { let component: TabsPage; let fixture: ComponentFixture<TabsPage>; beforeEach(async () => { ...
Then replace the default unit test with: import{TestBed,async}from'@angular/core/testing';import{RouterTestingModule}from'@angular/router/testing';import{Router}from'@angular/router';import{AppComponent}from'./app.component';describe('AppComponent',()=>{beforeEach(async(()=>{TestBed.configureTesti...