Abbiamo creato un progetto angular2 e all'interno di questo abbiamo creato un modulo (my-module) e all'interno di quel modulo abbiamo creato un componente (my-new-component) utilizzando i seguenti comandi cmd:
ng new angular2test
cd angular2test
ng g module my-module
ng generate component my-new-component
Dopo aver creato la configurazione e tutti i componenti, abbiamo eseguito il ng test
comando da cmd all'interno della cartella angular2test.
Il file seguente è il nostro file my-new-component.component.ts :
import { Component, OnInit } from '@angular/core';
import { Router, Routes, RouterModule } from '@angular/router';
import { DummyService } from '../services/dummy.service';
@Component({
selector: 'app-my-new-component',
templateUrl: './my-new-component.component.html',
styleUrls: ['./my-new-component.component.css']
})
export class MyNewComponentComponent implements OnInit {
constructor(private router : Router, private dummyService:DummyService) { }
ngOnInit() {
}
redirect() : void{
//this.router.navigate(['/my-module/my-new-component-1'])
}
}
Il file seguente è il nostro file my-new-component.component.spec.ts :
/* tslint:disable:no-unused-variable */
import { async, ComponentFixture, TestBed } from '@angular/core/testing';
import { By } from '@angular/platform-browser';
import { DebugElement } from '@angular/core';
import { RouterTestingModule } from '@angular/router/testing';
import {NgbModule} from '@ng-bootstrap/ng-bootstrap';
import { DummyService } from '../services/dummy.service';
import { MyNewComponentComponent } from './my-new-component.component';
describe('MyNewComponentComponent', () => {
let component: MyNewComponentComponent;
let fixture: ComponentFixture<MyNewComponentComponent>;
beforeEach(async(() => {
TestBed.configureTestingModule({
imports: [RouterTestingModule, NgbModule.forRoot(), DummyService],
declarations: [ MyNewComponentComponent ]
})
.compileComponents();
}));
beforeEach(() => {
fixture = TestBed.createComponent(MyNewComponentComponent);
component = fixture.componentInstance;
fixture.detectChanges();
});
it('should create', () => {
expect(component).toBeTruthy();
});
});
Stiamo ottenendo il seguente errore cmd durante l'esecuzione del comando ng test:
Chrome 54.0.2840 (Windows 7 0.0.0): Executed 1 of 1 (1 FAILED) ERROR (0.593 secs / 2.007 secs)
Chrome 54.0.2840 (Windows 7 0.0.0) MyNewComponentComponent should create FAILED
Failed: Unexpected value 'DummyService' imported by the module 'DynamicTestModule'
Error: Unexpected value 'DummyService' imported by the module 'DynamicTestModule'
Abbiamo aggiornato il file del componente e il file delle specifiche. Lieto di trovare sotto lo snippet di codice.
Il file seguente è il nostro file my-new-component.component.ts :
import { Component, OnInit } from '@angular/core';
import { Router, Routes, RouterModule } from '@angular/router';
import { DummyService } from '../services/dummy.service';
@Component({
selector: 'app-my-new-component',
templateUrl: './my-new-component.component.html',
styleUrls: ['./my-new-component.component.css']
})
export class MyNewComponentComponent implements OnInit {
constructor(private router : Router, private dummyService:DummyService, public fb: FormBuilder) {
super(fb);
}
ngOnInit() {
}
redirect() : void{
//this.router.navigate(['/my-module/my-new-component-1'])
}
}
Il file seguente è il nostro file my-new-component.component.spec.ts :
/* tslint:disable:no-unused-variable */
import { async, ComponentFixture, TestBed } from '@angular/core/testing';
import { By } from '@angular/platform-browser';
import { DebugElement } from '@angular/core';
import { FormsModule, FormGroup, FormBuilder, Validators, ReactiveFormsModule} from '@angular/forms';
import { SplitPipe } from '../../common/pipes/string-split.pipe';
import { RouterTestingModule } from '@angular/router/testing';
import { DummyService } from '../services/dummy.service';
import { MyNewComponentComponent } from './my-new-component.component';
describe('MyNewComponentComponent', () => {
let component: MyNewComponentComponent;
let fixture: ComponentFixture<MyNewComponentComponent>;
beforeEach(async(() => {
TestBed.configureTestingModule({
imports: [RouterTestingModule, DummyService ,HttpModule, FormBuilder],
declarations: [ MyNewComponentComponent, SplitPipe]
})
.compileComponents();
}));
beforeEach(() => {
fixture = TestBed.createComponent(MyNewComponentComponent);
component = fixture.componentInstance;
fixture.detectChanges();
});
it('should create', () => {
expect(component).toBeTruthy();
});
});
Ma durante l'esecuzione del comando ng test, otteniamo l'errore seguente.
09 12 2016 09:13:48.987:WARN [karma]: No captured browser, open http://localhost:9876/
09 12 2016 09:13:49.008:INFO [karma]: Karma v1.2.0 server started at http://localhost:9876/
09 12 2016 09:13:49.010:INFO [launcher]: Launching browser Chrome with unlimited concurrency
09 12 2016 09:13:49.420:INFO [launcher]: Starting browser Chrome
09 12 2016 09:13:58.642:INFO [Chrome 54.0.2840 (Windows 7 0.0.0)]: Connected on socket /#QZ9LSSUVeK6KwNDlAAAA with id 46830907
Failed: Unexpected value 'FormBuilder' imported by the module 'DynamicTestModule'
Error: Unexpected value 'FormBuilder' imported by the module 'DynamicTestModule'