For testing purposes you might want to inject window.location object in your component.
You can achieve this with custom InjectionToken mechanism provided by Angular.
export const LOCATION_TOKEN = new InjectionToken<Location>('Window location object');
@NgModule({
providers: [
{ provide: LOCATION_TOKEN, useValue: window.location }
]
})
export class SharedModule {}
//...
@Component({
})
export class AppComponent {
constructor(
@Inject(LOCATION_TOKEN) public location: Location
) {}
}