angular-docs-cn/aio/content/examples/upgrade-phonecat-2-hybrid/app/phone-detail/phone-detail.component.spec.ts

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import { TestBed, waitForAsync } from '@angular/core/testing';
import { ActivatedRoute } from '@angular/router';
import { Observable, of } from 'rxjs';
import { PhoneDetailComponent } from './phone-detail.component';
import { Phone, PhoneData } from '../core/phone/phone.service';
import { CheckmarkPipe } from '../core/checkmark/checkmark.pipe';
function xyzPhoneData(): PhoneData {
return {name: 'phone xyz', snippet: '', images: ['image/url1.png', 'image/url2.png']};
}
class MockPhone {
get(id: string): Observable<PhoneData> {
return of(xyzPhoneData());
}
}
class ActivatedRouteMock {
constructor(public snapshot: any) {}
}
describe('PhoneDetailComponent', () => {
beforeEach(waitForAsync(() => {
TestBed.configureTestingModule({
declarations: [ CheckmarkPipe, PhoneDetailComponent ],
providers: [
{ provide: Phone, useClass: MockPhone },
{ provide: ActivatedRoute, useValue: new ActivatedRouteMock({ params: { phoneId: 1 } }) }
]
})
.compileComponents();
}));
it('should fetch phone detail', () => {
const fixture = TestBed.createComponent(PhoneDetailComponent);
fixture.detectChanges();
const compiled = fixture.debugElement.nativeElement;
expect(compiled.querySelector('h1').textContent).toContain(xyzPhoneData().name);
});
});