1
我有一個使用angular(typescript)構建的應用程序我試圖設置app.component的測試。這個組件中有一個路由器插座。我想知道如何在這種情況下正確設置測試。如何爲包含帶角度路由器的組件設置測試?
app.component.spec.ts看起來像這樣
import { TestBed, async } from '@angular/core/testing';
import { inject } from '@angular/core/testing';
import { AppComponent } from './app.component';
import { Component, OnInit, Injectable } from '@angular/core';
import { Router, RouterOutlet } from "@angular/router";
import {DriftInfoDisplayComponent} from "./components/drift-info-display/drift-info-display.component";
import {DriftInfoService} from "./services/http-services/drift-info.service";
import {DriftInfo} from "./model/DriftInfo";
describe('AppComponent',() => {
beforeEach(async(() => {
TestBed.configureTestingModule({
declarations: [
AppComponent,
DriftInfoDisplayComponent
],
providers:[
DriftInfoService,
Router,
RouterOutlet
]
}).compileComponents();
}));
it('should create the app', async(() => {
const fixture = TestBed.createComponent(AppComponent);
const app = fixture.debugElement.componentInstance;
expect(app).toBeTruthy();
}));
it(`should have as title 'app works!'`, async(() => {
const fixture = TestBed.createComponent(AppComponent);
const app = fixture.debugElement.componentInstance;
expect(app.title).toEqual('app works!');
}));
it('should render title in a h1 tag', async(() => {
const fixture = TestBed.createComponent(AppComponent);
fixture.detectChanges();
const compiled = fixture.debugElement.nativeElement;
expect(compiled.querySelector('h1').textContent).toContain('app works!');
}));
});
但我得到這個運行NG測試時,
AppComponent應該創建失敗的應用程序失敗:無法解析所有 參數對於路由器:(?,?,?,?,?,?,?,?)。
您應該導入RouterModule,而不是直接提供路由器服務,因爲RouterModule管理路由器依賴關係(正如錯誤消息所示,這是您需要的)。 – Supamiu
你真了不起。如果你想添加一個解決方案,我會很樂意給你很好的綠色複選標記。 – Dan